{"id":17124,"date":"2025-08-25T08:00:29","date_gmt":"2025-08-25T01:00:29","guid":{"rendered":"https:\/\/vbee.vn\/blog\/?post_type=text-to-speech&#038;p=17124"},"modified":"2026-08-18T14:00:24","modified_gmt":"2026-08-18T07:00:24","slug":"lich-su-phat-trien","status":"publish","type":"post","link":"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/","title":{"rendered":"L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n t\u1eeb c\u00f4ng ngh\u1ec7 Text to Speech \u0111\u1ebfn AI Voice di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-grey ez-toc-container-direction\"><div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung ch\u00ednh<\/p><span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#1_Phan_biet_Speech_Synthesis_Tong_hop_tieng_noi_va_Text_to_Speech_TTS\" >1. Ph\u00e2n bi\u1ec7t Speech Synthesis (T\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i) v\u00e0 Text to Speech (TTS)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#11_Speech_Synthesis_la_gi\" >1.1 Speech Synthesis l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#12_Text_to_Speech_TTS_la_gi\" >1.2 Text to Speech (TTS) l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#13_Vi_sao_tong_hop_tieng_noi_ra_doi_truoc_TTS\" >1.3 V\u00ec sao t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i ra \u0111\u1eddi tr\u01b0\u1edbc TTS?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#2_Ky_nguyen_khoi_dau_The_ky_18_%E2%80%93_Giua_the_ky_20\" >2. K\u1ef7 nguy\u00ean kh\u1edfi \u0111\u1ea7u: Th\u1ebf k\u1ef7 18 \u2013 Gi\u1eefa th\u1ebf k\u1ef7 20<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#21_Thu_nghiem_co_hoc_mo_phong_co_quan_sinh_hoc\" >2.1 Th\u1eed nghi\u1ec7m c\u01a1 h\u1ecdc m\u00f4 ph\u1ecfng c\u01a1 quan sinh h\u1ecdc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#22_Chuyen_dich_sang_tong_hop_dien_tu_Vocoder_va_Voder\" >2.2 Chuy\u1ec3n d\u1ecbch sang t\u1ed5ng h\u1ee3p \u0111i\u1ec7n t\u1eed: Vocoder v\u00e0 Voder<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#3_Ky_nguyen_TTS_tren_may_tinh_1960s_%E2%80%93_1980s\" >3. K\u1ef7 nguy\u00ean TTS tr\u00ean m\u00e1y t\u00ednh 1960s \u2013 1980s<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#31_Nguyen_ly_tong_hop_Formant_Formant_Synthesis\" >3.1 Nguy\u00ean l\u00fd t\u1ed5ng h\u1ee3p Formant (Formant Synthesis)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#32_Cac_moc_lich_su_quan_trong\" >3.2 C\u00e1c m\u1ed1c l\u1ecbch s\u1eed quan tr\u1ecdng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#33_Danh_gia_uu_va_nhuoc_diem\" >3.3 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#4_Ky_nguyen_ghep_noi_am_thanh_1990s_%E2%80%93_2000s\" >4. K\u1ef7 nguy\u00ean gh\u00e9p n\u1ed1i \u00e2m thanh 1990s \u2013 2000s<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#41_Tu_Diphone_den_Unit_Selection\" >4.1 T\u1eeb Diphone \u0111\u1ebfn Unit Selection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#42_Danh_gia_uu_va_nhuoc_diem\" >4.2 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#5_Tong_hop_tham_so_thong_ke_SPSS_va_Mo_hinh_HMM_2000s_%E2%80%93_2010s\" >5. T\u1ed5ng h\u1ee3p tham s\u1ed1 th\u1ed1ng k\u00ea (SPSS) v\u00e0 M\u00f4 h\u00ecnh HMM (2000s \u2013 2010s)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#51_Nguyen_ly_SPSS_va_Hidden_Markov_Model_HMM\" >5.1 Nguy\u00ean l\u00fd SPSS v\u00e0 Hidden Markov Model (HMM)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#52_Danh_gia_uu_va_nhuoc_diem\" >5.2 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#6_Mang_no-ron_sau_va_Neural_Text_to_Speech_2016_%E2%80%93_Nay\" >6. M\u1ea1ng n\u01a1-ron s\u00e2u v\u00e0 Neural Text to Speech (2016 \u2013 Nay)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#61_WaveNet_DeepMind_2016_va_tieu_chuan_moi\" >6.1 WaveNet (DeepMind 2016) v\u00e0 ti\u00eau chu\u1ea9n m\u1edbi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#62_Cac_kien_truc_End-to-End_va_Neural_Vocoder\" >6.2 C\u00e1c ki\u1ebfn tr\u00fac End-to-End v\u00e0 Neural Vocoder<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#63_Danh_gia_uu_va_nhuoc_diem\" >6.3 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#7_Su_chuyen_dich_tu_TTS_truyen_thong_sang_he_sinh_thai_%E2%80%9CAI_Voice%E2%80%9D\" >7. S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb TTS truy\u1ec1n th\u1ed1ng sang h\u1ec7 sinh th\u00e1i &#8220;AI Voice&#8221;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#71_Phan_biet_ban_chat_%E2%80%9CTTS_truyen_thong%E2%80%9D_va_%E2%80%9CAI_Voice%E2%80%9D\" >7.1 Ph\u00e2n bi\u1ec7t b\u1ea3n ch\u1ea5t &#8220;TTS truy\u1ec1n th\u1ed1ng&#8221; v\u00e0 &#8220;AI Voice&#8221;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#72_AI_Voice_mo_rong_pham_vi_ung_dung_cua_TTS\" >7.2 AI Voice m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a TTS<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#8_Vi_sao_cac_cong_nghe_TTS_cu_van_ton_tai\" >8. V\u00ec sao c\u00e1c c\u00f4ng ngh\u1ec7 TTS c\u0169 v\u1eabn t\u1ed3n t\u1ea1i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#9_Nhung_gioi_han_va_thach_thuc_con_ton_tai_cua_AI_Voice\" >9. Nh\u1eefng gi\u1edbi h\u1ea1n v\u00e0 th\u00e1ch th\u1ee9c c\u00f2n t\u1ed3n t\u1ea1i c\u1ee7a AI Voice<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#10_Vbee_AIVoice_Dau_an_phat_trien_cong_nghe_giong_noi_AI_tai_Viet_Nam\" >10. Vbee AIVoice: D\u1ea5u \u1ea5n ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i AI t\u1ea1i Vi\u1ec7t Nam<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#101_Nang_luc_xu_ly_dac_thu_tieng_Viet\" >10.1 N\u0103ng l\u1ef1c x\u1eed l\u00fd \u0111\u1eb7c th\u00f9 ti\u1ebfng Vi\u1ec7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#102_Quy_mo_he_sinh_thai_cong_nghe_Vbee_AIVoice\" >10.2 Quy m\u00f4 h\u1ec7 sinh th\u00e1i c\u00f4ng ngh\u1ec7 Vbee AIVoice<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#11_Mot_so_cau_hoi_thuong_gap_FAQs\" >11. M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#111_Cong_nghe_chuyen_van_ban_thanh_giong_noi_Text_to_Speech_bat_dau_tu_khi_nao\" >11.1 C\u00f4ng ngh\u1ec7 chuy\u1ec3n v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i (Text to Speech) b\u1eaft \u0111\u1ea7u t\u1eeb khi n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#112_Ai_la_nguoi_tien_phong_trong_viec_tong_hop_giong_noi_bang_may_tinh\" >11.2 Ai l\u00e0 ng\u01b0\u1eddi ti\u00ean phong trong vi\u1ec7c t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng m\u00e1y t\u00ednh?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#113_Cong_nghe_Text_to_Speech_phat_trien_nhu_the_nao_trong_giai_doan_1970_%E2%80%93_2010\" >11.3 C\u00f4ng ngh\u1ec7 Text to Speech ph\u00e1t tri\u1ec3n nh\u01b0 th\u1ebf n\u00e0o trong giai \u0111o\u1ea1n 1970 \u2013 2010?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/lich-su-phat-trien\/#114_AI_va_mang_no-ron_sau_DNN_da_thay_doi_cong_nghe_TTS_ra_sao_tu_nam_2010_den_nay\" >11.4 AI v\u00e0 m\u1ea1ng n\u01a1-ron s\u00e2u (DNN) \u0111\u00e3 thay \u0111\u1ed5i c\u00f4ng ngh\u1ec7 TTS ra sao t\u1eeb n\u0103m 2010 \u0111\u1ebfn nay?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div><p><strong>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n Text to Speech (TTS) kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 c\u00e2u chuy\u1ec7n v\u1ec1 m\u1ed9t ph\u00e1t minh \u0111\u01a1n l\u1ebb, m\u00e0 l\u00e0 h\u00e0nh tr\u00ecnh ti\u1ebfn h\u00f3a l\u00e2u d\u00e0i c\u1ee7a khoa h\u1ecdc trong vi\u1ec7c bi\u1ec3u di\u1ec5n, m\u00f4 h\u00ecnh h\u00f3a v\u00e0 t\u1ea1o ra ti\u1ebfng n\u00f3i m\u00e1y t\u00ednh. T\u1eeb nh\u1eefng c\u1ed7 m\u00e1y c\u01a1 h\u1ecdc m\u00f4 ph\u1ecfng h\u1ec7 h\u00f4 h\u1ea5p con ng\u01b0\u1eddi \u1edf th\u1ebf k\u1ef7 18, qua c\u00e1c h\u1ec7 th\u1ed1ng gh\u00e9p n\u1ed1i \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1, c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00e3 c\u00f3 b\u01b0\u1edbc nh\u1ea3y v\u1ecdt m\u1ea1nh m\u1ebd ti\u1ebfn v\u00e0o k\u1ef7 nguy\u00ean m\u1ea1ng n\u01a1-ron v\u00e0 h\u1ec7 sinh th\u00e1i gi\u1ecdng n\u00f3i AI \u0111a d\u1ea1ng ng\u00e0y nay.<\/strong><\/p><p style=\"text-align: center;\"><p><iframe style=\"position: relative; top: 0px; border: none;\" title=\"H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng\" src=\"https:\/\/vbee.vn\/demo\" width=\"100%\" height=\"320\"><\/iframe><\/p><h2><span class=\"ez-toc-section\" id=\"1_Phan_biet_Speech_Synthesis_Tong_hop_tieng_noi_va_Text_to_Speech_TTS\"><\/span><strong>1. Ph\u00e2n bi\u1ec7t Speech Synthesis (T\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i) v\u00e0 Text to Speech (TTS)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p>Tr\u01b0\u1edbc khi \u0111i s\u00e2u v\u00e0o l\u1ecbch s\u1eed c\u00f4ng ngh\u1ec7 TTS, ch\u00fang ta c\u1ea7n l\u00e0m r\u00f5 hai kh\u00e1i ni\u1ec7m v\u1ed1n th\u01b0\u1eddng b\u1ecb l\u1eabn l\u1ed9n: speech synthesis (t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i) v\u00e0 <a rel=\"noopener\" target=\"_blank\" href=\"https:\/\/vbee.vn\" class=\"ilj-link\">Text to Speech<\/a> (chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i).<\/p><h3><span class=\"ez-toc-section\" id=\"11_Speech_Synthesis_la_gi\"><\/span><b>1.1 Speech Synthesis l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p><b>Speech synthesis<\/b> (t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i) l\u00e0 kh\u00e1i ni\u1ec7m r\u1ed9ng nh\u1ea5t, bao h\u00e0m m\u1ecdi k\u1ef9 thu\u1eadt t\u1ea1o ra \u00e2m thanh mang \u0111\u1eb7c t\u00ednh gi\u1ed1ng ti\u1ebfng n\u00f3i con ng\u01b0\u1eddi b\u1eb1ng ph\u01b0\u01a1ng ti\u1ec7n c\u01a1 h\u1ecdc, m\u1ea1ch \u0111i\u1ec7n t\u1eed ho\u1eb7c thu\u1eadt to\u00e1n m\u00e1y t\u00ednh. M\u1ed9t h\u1ec7 th\u1ed1ng t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i nh\u1eadn \u0111\u1ea7u v\u00e0o l\u00e0 v\u0103n b\u1ea3n; n\u00f3 c\u00f3 th\u1ec3 t\u1ea1o ra \u00e2m thanh d\u1ef1a tr\u00ean thao t\u00e1c ph\u00edm b\u1ea5m, t\u00edn hi\u1ec7u \u0111i\u1ec7n to\u00e1n ho\u1eb7c c\u00e1c tham s\u1ed1 t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c tinh ch\u1ec9nh th\u1ee7 c\u00f4ng.<\/p><h3><span class=\"ez-toc-section\" id=\"12_Text_to_Speech_TTS_la_gi\"><\/span><b>1.2 Text to Speech (TTS) l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>Text to Speech (TTS) l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng chuy\u00ean bi\u1ec7t v\u00e0 n\u00e2ng cao c\u1ee7a speech synthesis. H\u1ec7 th\u1ed1ng TTS \u0111\u1ea3m nh\u1eadn nhi\u1ec7m v\u1ee5 t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00f4 (unstructured text) th\u00e0nh ti\u1ebfng n\u00f3i ho\u00e0n ch\u1ec9nh. \u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, m\u1ed9t h\u1ec7 th\u1ed1ng TTS tr\u1ea3i qua hai c\u00f4ng \u0111o\u1ea1n c\u1ed1t l\u00f5i:<\/p><ul><li><b>X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) &amp; ng\u1eef \u00e2m:<\/b> Chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n ch\u1eef vi\u1ebft th\u00e0nh c\u00e1c \u0111\u01a1n v\u1ecb ng\u1eef \u00e2m (phoneme), \u0111\u1ed3ng th\u1eddi x\u00e1c \u0111\u1ecbnh tr\u1ecdng \u00e2m, nh\u1ecbp \u0111i\u1ec7u v\u00e0 ng\u1eef \u0111i\u1ec7u cho t\u1eebng c\u00e2u.<\/li><li><b>T\u1ed5ng h\u1ee3p \u00e2m thanh (Acoustic Processing):<\/b> Bi\u1ebfn chu\u1ed7i k\u00fd hi\u1ec7u ng\u1eef \u00e2m \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch th\u00e0nh s\u00f3ng \u00e2m thanh (audio waveform) ph\u00e1t ra loa.<\/li><\/ul><blockquote><p>T\u00ecm hi\u1ec3u chi ti\u1ebft: <a href=\"https:\/\/vbee.vn\/blog\/chuyen-van-ban-thanh-giong-noi\/text-to-speech-la-gi\/\">TTS l\u00e0 g\u00ec? Kh\u00e1i ni\u1ec7m, l\u1ee3i \u00edch v\u00e0 \u1ee9ng d\u1ee5ng Text to Speech<\/a><\/p><\/blockquote><h3><span class=\"ez-toc-section\" id=\"13_Vi_sao_tong_hop_tieng_noi_ra_doi_truoc_TTS\"><\/span><b>1.3 V\u00ec sao t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i ra \u0111\u1eddi tr\u01b0\u1edbc TTS?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>C\u00f4ng ngh\u1ec7 t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i \u0111\u00e3 nhen nh\u00f3m t\u1eeb h\u00e0ng tr\u0103m n\u0103m tr\u01b0\u1edbc khi m\u00e1y t\u00ednh xu\u1ea5t hi\u1ec7n. L\u00fd do r\u1ea5t \u0111\u01a1n gi\u1ea3n: vi\u1ec7c m\u00f4 ph\u1ecfng m\u1eb7t v\u1eadt l\u00fd c\u1ee7a \u00e2m thanh (t\u1ea1o ra c\u00e1c d\u1ea3i t\u1ea7n t\u01b0\u01a1ng t\u1ef1 nguy\u00ean \u00e2m hay ph\u1ee5 \u00e2m) d\u1ec5 h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c d\u1ea1y m\u00e1y t\u00ednh c\u00e1ch &#8220;hi\u1ec3u&#8221; v\u00e0 ph\u00e2n t\u00edch c\u1ea5u tr\u00fac ng\u1eef ph\u00e1p ph\u1ee9c t\u1ea1p c\u1ee7a ng\u00f4n ng\u1eef lo\u00e0i ng\u01b0\u1eddi. Ch\u1ec9 \u0111\u1ebfn khi khoa h\u1ecdc m\u00e1y t\u00ednh v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng ti\u1ebfn b\u1ed9 v\u01b0\u1ee3t b\u1eadc \u1edf gi\u1eefa th\u1ebf k\u1ef7 20, c\u00e1c h\u1ec7 th\u1ed1ng Text to Speech t\u1ef1 \u0111\u1ed9ng th\u1ef1c s\u1ef1 m\u1edbi b\u1eaft \u0111\u1ea7u \u0111\u1eb7t n\u1ec1n m\u00f3ng.<\/p><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c m\u1ed1c s\u1ef1 ki\u1ec7n quan tr\u1ecdng trong l\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i:<\/p><table>\n<tbody>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>Giai \u0111o\u1ea1n<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p><b>Th\u1eddi gian<\/b><\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p><b>C\u00f4ng ngh\u1ec7 c\u1ed1t l\u00f5i<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>Kh\u1edfi \u0111\u1ea7u c\u01a1 h\u1ecdc &amp; \u0111i\u1ec7n t\u1eed<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p>Th\u1ebf k\u1ef7 18 &#8211; Gi\u1eefa th\u1ebf k\u1ef7 20<\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p>M\u00f4 ph\u1ecfng sinh h\u1ecdc, M\u1ea1ch dao \u0111\u1ed9ng \u0111i\u1ec7n<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>TTS tr\u00ean m\u00e1y t\u00ednh<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p>1960s &#8211; 1980s<\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p>Formant Synthesis, T\u1ed5ng h\u1ee3p theo lu\u1eadt<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>Gh\u00e9p n\u1ed1i \u00e2m thanh<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p>1990s &#8211; 2000s<\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p>Concatenative Synthesis (T\u1ed5ng h\u1ee3p gh\u00e9p n\u1ed1i), Unit Selection (T\u1ed5ng h\u1ee3p l\u1ef1a ch\u1ecdn \u0111\u01a1n v\u1ecb)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>Tham s\u1ed1 th\u1ed1ng k\u00ea<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p>2000s &#8211; 2010s<\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p>SPSS, Hidden Markov Model (HMM)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30.1257%;\">\n<p><b>Neural TTS &amp; AI Voice<\/b><\/p>\n<\/td>\n<td style=\"width: 24.1663%;\">\n<p>2016 &#8211; Nay<\/p>\n<\/td>\n<td style=\"width: 45.2706%;\">\n<p>H\u1ecdc s\u00e2u, WaveNet, End-to-End, Neural Vocoder<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h2><span class=\"ez-toc-section\" id=\"2_Ky_nguyen_khoi_dau_The_ky_18_%E2%80%93_Giua_the_ky_20\"><\/span><b>2. K\u1ef7 nguy\u00ean kh\u1edfi \u0111\u1ea7u: Th\u1ebf k\u1ef7 18 \u2013 Gi\u1eefa th\u1ebf k\u1ef7 20<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><figure id=\"attachment_30727\" aria-describedby=\"caption-attachment-30727\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-30727\" src=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/ban-sao-thiet-bi-tong-hop-giong-noi-.webp\" alt=\"B\u1ea3n sao thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng c\u01a1 h\u1ecdc c\u1ee7a Wolfgang von Kempelen\" width=\"900\" height=\"600\" title=\"\" srcset=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/ban-sao-thiet-bi-tong-hop-giong-noi-.webp 900w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/ban-sao-thiet-bi-tong-hop-giong-noi--300x200.webp 300w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/ban-sao-thiet-bi-tong-hop-giong-noi--768x512.webp 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-30727\" class=\"wp-caption-text\">B\u1ea3n sao thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng c\u01a1 h\u1ecdc c\u1ee7a Wolfgang von Kempelen.<\/figcaption><\/figure><h3><span class=\"ez-toc-section\" id=\"21_Thu_nghiem_co_hoc_mo_phong_co_quan_sinh_hoc\"><\/span><b>2.1 Th\u1eed nghi\u1ec7m c\u01a1 h\u1ecdc m\u00f4 ph\u1ecfng c\u01a1 quan sinh h\u1ecdc<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>C\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n c\u1ee7a Text to Speech b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng n\u1ed7 l\u1ef1c t\u00e1i t\u1ea1o l\u1ea1i c\u01a1 c\u1ea5u ph\u00e1t \u00e2m c\u1ee7a con ng\u01b0\u1eddi nh\u01b0 ph\u1ed5i, d\u00e2y thanh qu\u1ea3n v\u00e0 khoang mi\u1ec7ng b\u1eb1ng thi\u1ebft b\u1ecb c\u01a1 kh\u00ed:<\/p><ul><li><b>N\u0103m 1779:<\/b> Nh\u00e0 khoa h\u1ecdc Christian Kratzenstein ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng c\u00e1c \u1ed1ng c\u00f2i b\u1eb1ng g\u1ed7 n\u1ed1i v\u1edbi b\u1ed9 kh\u00ed c\u1ee5 d\u1ea1ng \u1ed1ng th\u1ed5i, c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t ra 5 nguy\u00ean \u00e2m k\u00e9o d\u00e0i (a, e, i, o, u).<\/li><li><b>N\u0103m 1791:<\/b> Wolfgang von Kempelen gi\u1edbi thi\u1ec7u &#8220;C\u1ed7 m\u00e1y n\u00f3i c\u01a1 h\u1ecdc&#8221; (Acoustico-Mechanical Speech Machine). H\u1ec7 th\u1ed1ng n\u00e0y k\u1ebft h\u1ee3p \u1ed1ng th\u1ed5i m\u00f4 ph\u1ecfng ph\u1ed5i, m\u1ed9t l\u01b0\u1ee1i g\u00e0 b\u1eb1ng da \u0111\u00f3ng vai tr\u00f2 nh\u01b0 d\u00e2y thanh \u00e2m v\u00e0 m\u1ed9t h\u1ed9p cao su m\u1ec1m n\u1eafn b\u00f3p b\u1eb1ng tay \u0111\u1ec3 t\u1ea1o h\u00ecnh khoang mi\u1ec7ng. C\u1ed7 m\u00e1y c\u1ee7a Von Kempelen kh\u00f4ng ch\u1ec9 ph\u00e1t ra nguy\u00ean \u00e2m m\u00e0 c\u00f2n gh\u00e9p \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 ph\u1ee5 \u00e2m \u0111\u1ec3 t\u1ea1o th\u00e0nh t\u1eeb ng\u1eafn.<\/li><\/ul><p>C\u00e1c th\u1eed nghi\u1ec7m th\u1eddi k\u1ef3 n\u00e0y \u0111\u00e3 ch\u1ee9ng minh \u00e2m thanh ti\u1ebfng n\u00f3i ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1i t\u1ea1o qua con \u0111\u01b0\u1eddng v\u1eadt l\u00fd, d\u00f9 to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh v\u1eabn ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o s\u1ef1 \u0111i\u1ec1u khi\u1ec3n th\u1ee7 c\u00f4ng c\u1ee7a con ng\u01b0\u1eddi.<\/p><h3><span class=\"ez-toc-section\" id=\"22_Chuyen_dich_sang_tong_hop_dien_tu_Vocoder_va_Voder\"><\/span><b>2.2 Chuy\u1ec3n d\u1ecbch sang t\u1ed5ng h\u1ee3p \u0111i\u1ec7n t\u1eed: Vocoder v\u00e0 Voder<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0110\u1ea7u th\u1ebf k\u1ef7 20, s\u1ef1 ra \u0111\u1eddi c\u1ee7a k\u1ef9 thu\u1eadt \u0111i\u1ec7n t\u1eed \u0111\u00e3 thay th\u1ebf d\u1ea7n c\u00e1c c\u01a1 c\u1ea5u c\u01a1 h\u1ecdc b\u1eb1ng m\u1ea1ch dao \u0111\u1ed9ng v\u00e0 b\u1ed9 l\u1ecdc d\u1ea3i t\u1ea7n \u00e2m thanh:<\/p><ul><li><b>N\u0103m 1928 &#8211; 1939 (Vocoder):<\/b> Homer Dudley t\u1ea1i Bell Labs ph\u00e1t minh ra <b>Vocoder<\/b> (Voice Coder). Thi\u1ebft b\u1ecb n\u00e0y ph\u00e2n t\u00edch ti\u1ebfng n\u00f3i th\u00e0nh c\u00e1c tham s\u1ed1 t\u1ea7n s\u1ed1 \u0111\u1ec3 n\u00e9n d\u1eef li\u1ec7u truy\u1ec1n qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i, sau \u0111\u00f3 t\u00e1i t\u1ea1o l\u1ea1i \u00e2m thanh \u1edf \u0111\u1ea7u nh\u1eadn.<\/li><li><b>N\u0103m 1939 (Voder):<\/b> T\u1ea1i H\u1ed9i ch\u1ee3 Th\u1ebf gi\u1edbi New York 1939, Bell Labs cho ra m\u1eaft <b>Voder<\/b> (Voice Operation Demonstrator) \u2013 thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p ti\u1ebfng n\u00f3i \u0111i\u1ec7n t\u1eed \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi. Voder g\u1ed3m c\u00e1c m\u1ea1ch t\u1ea1o nhi\u1ec5u, m\u1ea1ch dao \u0111\u1ed9ng v\u00e0 b\u1ed9 l\u1ecdc t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c tr\u00ecnh di\u1ec5n b\u1edfi m\u1ed9t k\u1ef9 thu\u1eadt vi\u00ean qua b\u00e0n ph\u00edm v\u00e0 b\u00e0n \u0111\u1ea1p ch\u00e2n.<\/li><\/ul><p>Voder \u0111\u00e1nh d\u1ea5u m\u1ed9t c\u1ed9t m\u1ed1c l\u1ecbch s\u1eed l\u1edbn c\u1ee7a speech synthesis, nh\u01b0ng n\u00f3 ch\u01b0a ph\u1ea3i l\u00e0 h\u1ec7 th\u1ed1ng Text to Speech, b\u1edfi \u00e2m thanh t\u1ea1o ra v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ef9 n\u0103ng thao t\u00e1c ph\u00edm b\u1ea5m theo th\u1eddi gian th\u1ef1c ch\u1ee9 kh\u00f4ng xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c \u0111\u1ecdc m\u1ed9t \u0111o\u1ea1n v\u0103n b\u1ea3n.<\/p><h2><span class=\"ez-toc-section\" id=\"3_Ky_nguyen_TTS_tren_may_tinh_1960s_%E2%80%93_1980s\"><\/span><b>3. K\u1ef7 nguy\u00ean TTS tr\u00ean m\u00e1y t\u00ednh 1960s \u2013 1980s<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><figure id=\"attachment_30729\" aria-describedby=\"caption-attachment-30729\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-30729\" src=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/thiet-bi-tong-hop-giong-noi-dectalk.webp\" alt=\"Thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i DECtalk g\u1eafn li\u1ec1n v\u1edbi nh\u00e0 v\u1eadt l\u00fd Stephen Hawking\" width=\"900\" height=\"600\" title=\"\" srcset=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/thiet-bi-tong-hop-giong-noi-dectalk.webp 900w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/thiet-bi-tong-hop-giong-noi-dectalk-300x200.webp 300w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/thiet-bi-tong-hop-giong-noi-dectalk-768x512.webp 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-30729\" class=\"wp-caption-text\">Thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i DECtalk g\u1eafn li\u1ec1n v\u1edbi nh\u00e0 v\u1eadt l\u00fd Stephen Hawking.<\/figcaption><\/figure><h3><span class=\"ez-toc-section\" id=\"31_Nguyen_ly_tong_hop_Formant_Formant_Synthesis\"><\/span><b>3.1 Nguy\u00ean l\u00fd t\u1ed5ng h\u1ee3p Formant (Formant Synthesis)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>Khi m\u00e1y t\u00ednh k\u1ef9 thu\u1eadt s\u1ed1 xu\u1ea5t hi\u1ec7n, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u b\u1eaft \u0111\u1ea7u x\u00e2y d\u1ef1ng c\u00f4ng ngh\u1ec7 t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i t\u1ef1 \u0111\u1ed9ng d\u1ef1a tr\u00ean h\u1ec7 th\u1ed1ng quy t\u1eafc ng\u1eef \u00e2m (rule-based).<\/p><p><b>Formant Synthesis<\/b> (T\u1ed5ng h\u1ee3p Formant) ho\u00e0n to\u00e0n kh\u00f4ng s\u1eed d\u1ee5ng b\u1ea5t k\u1ef3 b\u1ea3n ghi \u00e2m gi\u1ecdng ng\u01b0\u1eddi th\u1eadt n\u00e0o. Thay v\u00e0o \u0111\u00f3, n\u00f3 d\u00f9ng m\u00f4 h\u00ecnh to\u00e1n h\u1ecdc \u0111\u1ec3 gi\u1ea3 l\u1eadp c\u00e1c &#8220;formant&#8221; \u2013 nh\u1eefng d\u1ea3i t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng \u0111\u1eb7c tr\u01b0ng t\u1ea1o ra nguy\u00ean \u00e2m v\u00e0 ph\u1ee5 \u00e2m trong khoang mi\u1ec7ng, v\u00f2m h\u1ecdng. H\u1ec7 th\u1ed1ng ch\u1ee9a h\u00e0ng tr\u0103m quy t\u1eafc ng\u1eef \u00e2m nh\u1eb1m \u0111i\u1ec1u ch\u1ec9nh c\u00e1ch t\u1ea7n s\u1ed1 d\u1ecbch chuy\u1ec3n linh ho\u1ea1t t\u1eeb \u00e2m n\u00e0y sang \u00e2m kh\u00e1c.<\/p><h3><span class=\"ez-toc-section\" id=\"32_Cac_moc_lich_su_quan_trong\"><\/span><b>3.2 C\u00e1c m\u1ed1c l\u1ecbch s\u1eed quan tr\u1ecdng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><b>N\u0103m 1968:<\/b> H\u1ec7 th\u1ed1ng TTS t\u1ef1 \u0111\u1ed9ng \u0111\u1ea7u ti\u00ean c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u0103n b\u1ea3n ti\u1ebfng Nh\u1eadt \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n t\u1ea1i Ph\u00f2ng th\u00ed nghi\u1ec7m Electrotechnical (ETL) b\u1edfi nh\u00f3m nghi\u00ean c\u1ee9u do Noriko Umeda d\u1eabn d\u1eaft.<\/li><li><b>N\u0103m 1979 (KlattTalk):<\/b> Dennis Klatt t\u1ea1i MIT x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh KlattTalk, m\u00f4 ph\u1ecfng ch\u00ednh x\u00e1c c\u00e1c tham s\u1ed1 \u00e2m h\u1ecdc c\u1ee7a gi\u1ecdng n\u00f3i.<\/li><li><b>N\u0103m 1983 (DECtalk):<\/b> T\u1ef1 ho\u00e0n thi\u1ec7n d\u1ef1a tr\u00ean KlattTalk, t\u1eadp \u0111o\u00e0n Digital Equipment Corporation (DEC) th\u01b0\u01a1ng m\u1ea1i h\u00f3a thi\u1ebft b\u1ecb <b>DECtalk<\/b>. \u0110\u00e2y ch\u00ednh l\u00e0 h\u1ec7 th\u1ed1ng gi\u1ecdng n\u00f3i m\u00e1y t\u00ednh n\u1ed5i ti\u1ebfng \u0111\u00e3 \u0111\u1ed3ng h\u00e0nh c\u00f9ng Nh\u00e0 v\u1eadt l\u00fd thi\u00ean v\u0103n Stephen Hawking su\u1ed1t nhi\u1ec1u th\u1eadp k\u1ef7 \u0111\u1ec3 gi\u00fap \u00f4ng giao ti\u1ebfp v\u1edbi th\u1ebf gi\u1edbi.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"33_Danh_gia_uu_va_nhuoc_diem\"><\/span><b>3.3 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><b>\u01afu \u0111i\u1ec3m:<\/b> Dung l\u01b0\u1ee3ng c\u1ef1c k\u1ef3 nh\u1eb9, kh\u00f4ng t\u1ed1n b\u1ed9 nh\u1edb l\u01b0u tr\u1eef, v\u1eadn h\u00e0nh m\u01b0\u1ee3t m\u00e0 tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh \u0111\u1eddi c\u0169 c\u00f3 c\u1ea5u h\u00ecnh khi\u00eam t\u1ed1n. T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd t\u1ed5ng h\u1ee3p r\u1ea5t nhanh.<\/li><li><b>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/b> Gi\u1ecdng \u0111\u1ecdc mang t\u00ednh &#8220;robot&#8221; r\u1ea5t r\u00f5, \u00e2m thanh kh\u00f4 c\u1ee9ng, thi\u1ebfu ng\u1eef \u0111i\u1ec7u t\u1ef1 nhi\u00ean v\u00e0 d\u1ec5 g\u00e2y c\u1ea3m gi\u00e1c m\u1ec7t m\u1ecfi cho ng\u01b0\u1eddi nghe n\u1ebfu ti\u1ebfp x\u00fac trong th\u1eddi gian d\u00e0i.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"4_Ky_nguyen_ghep_noi_am_thanh_1990s_%E2%80%93_2000s\"><\/span><b>4. K\u1ef7 nguy\u00ean gh\u00e9p n\u1ed1i \u00e2m thanh 1990s \u2013 2000s<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u0110\u1ec3 v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n c\u1ee7a ch\u1ea5t gi\u1ecdng m\u00e1y m\u00f3c t\u1eeb ph\u01b0\u01a1ng ph\u00e1p Formant, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 \u0111\u1ed5i h\u01b0\u1edbng sang ti\u1ebfp c\u1eadn TTS truy\u1ec1n th\u1ed1ng d\u1ef1a tr\u00ean d\u1eef li\u1ec7u thu \u00e2m th\u1ef1c t\u1ebf: <b>Concatenative Synthesis<\/b> (T\u1ed5ng h\u1ee3p gh\u00e9p n\u1ed1i).<\/p><h3><span class=\"ez-toc-section\" id=\"41_Tu_Diphone_den_Unit_Selection\"><\/span><b>4.1 T\u1eeb Diphone \u0111\u1ebfn Unit Selection<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u1ed1i ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch thu \u00e2m nhi\u1ec1u gi\u1edd li\u1ec1n gi\u1ecdng \u0111\u1ecdc c\u1ee7a m\u1ed9t ph\u00e1t thanh vi\u00ean, sau \u0111\u00f3 c\u1eaft b\u1ea3n ghi th\u00e0nh v\u00f4 s\u1ed1 \u0111\u01a1n v\u1ecb \u00e2m thanh nh\u1ecf v\u00e0 l\u01b0u tr\u1eef v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p><ul><li><b>Diphone Synthesis:<\/b> C\u1eaft v\u00e0 l\u01b0u gi\u1eef \u0111o\u1ea1n \u00e2m thanh chuy\u1ec3n ti\u1ebfp gi\u1eefa hai \u00e2m ti\u1ebft (v\u00ed d\u1ee5: \u0111o\u1ea1n n\u1ed1i t\u1eeb gi\u1eefa \u00e2m \/k\/ sang \u00e2m \/a\/). C\u00e1c \u0111o\u1ea1n diphone c\u1ed1 \u0111\u1ecbnh n\u00e0y \u0111\u01b0\u1ee3c chu\u1ed7i l\u1ea1i v\u1edbi nhau d\u1ef1a tr\u00ean y\u00eau c\u1ea7u c\u1ee7a v\u0103n b\u1ea3n \u0111\u1ea7u v\u00e0o.<\/li><li><b>Unit Selection Synthesis (T\u1ed5ng h\u1ee3p l\u1ef1a ch\u1ecdn \u0111\u01a1n v\u1ecb):<\/b> B\u1eaft \u0111\u1ea7u b\u1ee9t ph\u00e1 t\u1eeb cu\u1ed1i th\u1eadp ni\u00ean 1990. C\u01a1 s\u1edf d\u1eef li\u1ec7u l\u01b0u gi\u1eef c\u00e1c \u0111\u01a1n v\u1ecb \u00e2m thanh v\u1edbi k\u00edch th\u01b0\u1edbc linh ho\u1ea1t (t\u1eeb m\u1ed9t \u00e2m ti\u1ebft, m\u1ed9t t\u1eeb cho \u0111\u1ebfn c\u1ea3 c\u1ee5m t\u1eeb) \u0111\u01b0\u1ee3c thu \u00e2m \u1edf nhi\u1ec1u b\u1ed1i c\u1ea3nh cao \u0111\u1ed9 v\u00e0 ng\u1eef \u0111i\u1ec7u kh\u00e1c nhau. Khi c\u1ea7n ph\u00e1t \u00e2m m\u1ed9t \u0111o\u1ea1n v\u0103n, thu\u1eadt to\u00e1n s\u1ebd truy xu\u1ea5t c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 t\u00ecm ra chu\u1ed7i \u00e2m thanh t\u1ed1i \u01b0u nh\u1ea5t r\u1ed3i &#8220;n\u1ed1i&#8221; ch\u00fang l\u1ea1i v\u1edbi nhau.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"42_Danh_gia_uu_va_nhuoc_diem\"><\/span><b>4.2 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><b>\u01afu \u0111i\u1ec3m:<\/b> M\u1ed7i \u0111o\u1ea1n \u00e2m thanh nh\u1ecf \u0111\u1ec1u gi\u1eef nguy\u00ean 100% ch\u1ea5t gi\u1ecdng th\u1ef1c c\u1ee7a ng\u01b0\u1eddi \u0111\u1ecdc, gi\u00fap \u0111\u1ed9 ch\u00e2n th\u1ef1c c\u1ea3i thi\u1ec7n v\u01b0\u1ee3t b\u1eadc so v\u1edbi t\u1ed5ng h\u1ee3p Formant.<\/li><li><b>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/b><ul><li><b>L\u1ed7i ranh gi\u1edbi gh\u00e9p (audio glitches\/seams):<\/b> Khi gh\u00e9p c\u00e1c \u0111o\u1ea1n \u00e2m thanh thu \u1edf th\u1eddi \u0111i\u1ec3m ho\u1eb7c ng\u1eef \u0111i\u1ec7u kh\u00e1c nhau, \u0111i\u1ec3m n\u1ed1i th\u01b0\u1eddng t\u1ea1o ra ti\u1ebfng gi\u1eadt, h\u1eabng ho\u1eb7c bi\u1ebfn \u0111\u1ed5i t\u00f4ng gi\u1ecdng \u0111\u1ed9t ng\u1ed9t.<\/li><li><b>Dung l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3:<\/b> Y\u00eau c\u1ea7u kho d\u1eef li\u1ec7u t\u1eeb v\u00e0i GB \u0111\u1ebfn h\u00e0ng ch\u1ee5c GB ch\u1ec9 cho m\u1ed9t gi\u1ecdng \u0111\u1ecdc.<\/li><li><b>K\u00e9m linh ho\u1ea1t:<\/b> Mu\u1ed1n thay \u0111\u1ed5i c\u1ea3m x\u00fac hay t\u1ea1o m\u1ed9t gi\u1ecdng \u0111\u1ecdc m\u1edbi, \u0111\u01a1n v\u1ecb ph\u00e1t tri\u1ec3n b\u1eaft bu\u1ed9c ph\u1ea3i thu \u00e2m v\u00e0 x\u1eed l\u00fd l\u1ea1i to\u00e0n b\u1ed9 t\u1eadp d\u1eef li\u1ec7u t\u1eeb \u0111\u1ea7u.<\/li><\/ul><\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"5_Tong_hop_tham_so_thong_ke_SPSS_va_Mo_hinh_HMM_2000s_%E2%80%93_2010s\"><\/span><b>5. T\u1ed5ng h\u1ee3p tham s\u1ed1 th\u1ed1ng k\u00ea (SPSS) v\u00e0 M\u00f4 h\u00ecnh HMM (2000s \u2013 2010s)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>Nh\u1eb1m gi\u1ea3i quy\u1ebft b\u00e0i to\u00e1n dung l\u01b0\u1ee3ng b\u1ed9 nh\u1edb qu\u00e1 l\u1edbn v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng h\u1eabng ti\u1ebfng \u1edf ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u1ed1i, <b>t\u1ed5ng h\u1ee3p tham s\u1ed1 th\u1ed1ng k\u00ea<\/b> (Statistical Parametric Speech Synthesis &#8211; SPSS) \u0111\u00e3 ra \u0111\u1eddi v\u00e0 nhanh ch\u00f3ng tr\u1edf th\u00e0nh chu\u1ea9n m\u1ef1c m\u1edbi trong nh\u1eefng n\u0103m 2000.<\/p><h3><span class=\"ez-toc-section\" id=\"51_Nguyen_ly_SPSS_va_Hidden_Markov_Model_HMM\"><\/span><b>5.1 Nguy\u00ean l\u00fd SPSS v\u00e0 Hidden Markov Model (HMM)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>Thay v\u00ec l\u01b0u tr\u1eef c\u00e1c \u0111o\u1ea1n \u00e2m thanh c\u1eaft l\u1ebb, SPSS \u1ee9ng d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n th\u1ed1ng k\u00ea, trong \u0111\u00f3 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 <b>Hidden Markov Model (HMM)<\/b>, \u0111\u1ec3 h\u1ecdc c\u00e1ch c\u00e1c tham s\u1ed1 \u00e2m thanh (nh\u01b0 t\u1ea7n s\u1ed1 c\u01a1 b\u1ea3n F0, ph\u1ed5 \u00e2m thanh, \u0111\u1ed9 d\u00e0i \u00e2m ti\u1ebft) bi\u1ebfn thi\u00ean theo ng\u1eef c\u1ea3nh v\u0103n b\u1ea3n.<\/p><ul><li><b>Giai \u0111o\u1ea1n hu\u1ea5n luy\u1ec7n (Training):<\/b> M\u00f4 h\u00ecnh HMM tr\u00edch xu\u1ea5t tham s\u1ed1 t\u1eeb d\u1eef li\u1ec7u gi\u1ecdng n\u00f3i v\u00e0 h\u1ecdc ph\u00e2n b\u1ed1 th\u1ed1ng k\u00ea c\u1ee7a ch\u00fang.<\/li><li><b>Giai \u0111o\u1ea1n t\u1ed5ng h\u1ee3p (Synthesis):<\/b> Khi ti\u1ebfp nh\u1eadn v\u0103n b\u1ea3n m\u1edbi, m\u00f4 h\u00ecnh t\u00ednh to\u00e1n v\u00e0 d\u1ef1 \u0111o\u00e1n chu\u1ed7i tham s\u1ed1 \u00e2m h\u1ecdc t\u1ed1i \u01b0u, sau \u0111\u00f3 truy\u1ec1n qua b\u1ed9 ph\u00e1t \u00e2m (Vocoder truy\u1ec1n th\u1ed1ng nh\u01b0 STRAIGHT ho\u1eb7c WORLD) \u0111\u1ec3 t\u00e1i t\u1ea1o l\u1ea1i s\u00f3ng \u00e2m.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"52_Danh_gia_uu_va_nhuoc_diem\"><\/span><b>5.2 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><b>\u01afu \u0111i\u1ec3m:<\/b> K\u00edch th\u01b0\u1edbc m\u00f4 h\u00ecnh c\u1ef1c k\u1ef3 g\u1ecdn nh\u1eb9 (ch\u1ec9 v\u00e0i megabyte), gi\u1ecdng \u0111\u1ecdc li\u1ec1n m\u1ea1ch, ho\u00e0n to\u00e0n lo\u1ea1i b\u1ecf l\u1ed7i gi\u1eadt h\u1eabng t\u1ea1i ranh gi\u1edbi gh\u00e9p n\u1ed1i. R\u1ea5t d\u1ec5 d\u00e0ng t\u00f9y bi\u1ebfn c\u00e1c tham s\u1ed1 v\u1ec1 cao \u0111\u1ed9 hay t\u1ed1c \u0111\u1ed9.<\/li><li><b>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/b> \u00c2m thanh b\u1ecb suy gi\u1ea3m \u0111\u1ed9 s\u1eafc n\u00e9t, t\u1ea1o c\u1ea3m gi\u00e1c h\u01a1i &#8220;m\u1edd&#8221; ho\u1eb7c n\u00e9n ti\u1ebfng (buzzy\/muffled sound) do qu\u00e1 tr\u00ecnh trung b\u00ecnh h\u00f3a th\u1ed1ng k\u00ea l\u00e0m th\u1ea5t tho\u00e1t c\u00e1c chi ti\u1ebft t\u1ea7n s\u1ed1 cao \u0111\u1eb7c tr\u01b0ng c\u1ee7a gi\u1ecdng ng\u01b0\u1eddi.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"6_Mang_no-ron_sau_va_Neural_Text_to_Speech_2016_%E2%80%93_Nay\"><\/span><b>6. M\u1ea1ng n\u01a1-ron s\u00e2u v\u00e0 Neural Text to Speech (2016 \u2013 Nay)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>S\u1ef1 ph\u00e1t tri\u1ec3n b\u00f9ng n\u1ed5 c\u1ee7a tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 h\u1ecdc s\u00e2u (Deep Learning) \u0111\u00e3 t\u1ea1o n\u00ean cu\u1ed9c c\u00e1ch m\u1ea1ng l\u1edbn nh\u1ea5t trong <b>l\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n Text to Speech<\/b>, x\u00f3a m\u1edd ranh gi\u1edbi gi\u1eefa gi\u1ecdng n\u00f3i do m\u00e1y t\u00ednh t\u1ea1o ra v\u00e0 gi\u1ecdng ng\u01b0\u1eddi th\u1eadt.<\/p><figure id=\"attachment_30730\" aria-describedby=\"caption-attachment-30730\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-30730\" src=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/mo-hinh-mang-no-ron-waveNet-.webp\" alt=\"M\u00f4 h\u00ecnh m\u1ea1ng n\u01a1-ron WaveNet sinh s\u00f3ng \u00e2m thanh t\u1eeb d\u1eef li\u1ec7u\" width=\"900\" height=\"600\" title=\"\" srcset=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/mo-hinh-mang-no-ron-waveNet-.webp 900w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/mo-hinh-mang-no-ron-waveNet--300x200.webp 300w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/mo-hinh-mang-no-ron-waveNet--768x512.webp 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-30730\" class=\"wp-caption-text\">M\u00f4 h\u00ecnh m\u1ea1ng n\u01a1-ron WaveNet sinh s\u00f3ng \u00e2m thanh t\u1eeb d\u1eef li\u1ec7u.<\/figcaption><\/figure><h3><span class=\"ez-toc-section\" id=\"61_WaveNet_DeepMind_2016_va_tieu_chuan_moi\"><\/span><b>6.1 WaveNet (DeepMind 2016) v\u00e0 ti\u00eau chu\u1ea9n m\u1edbi<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>N\u0103m 2016, DeepMind (Google) c\u00f4ng b\u1ed1 c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u ch\u1ea5n \u0111\u1ed9ng <b>WaveNet<\/b>. Kh\u00f4ng c\u00f2n d\u1ef1a v\u00e0o vi\u1ec7c d\u1ef1 \u0111o\u00e1n tham s\u1ed1 th\u1ed1ng k\u00ea hay gh\u00e9p n\u1ed1i \u0111o\u1ea1n ghi \u00e2m, WaveNet l\u00e0 m\u1ed9t m\u1ea1ng n\u01a1-ron sinh t\u1ef1 h\u1ed3i quy (autoregressive neural network) c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra tr\u1ef1c ti\u1ebfp t\u1eebng m\u1eabu s\u00f3ng \u00e2m thanh th\u00f4 (raw audio waveforms) v\u1edbi t\u1ea7n s\u1ed1 l\u1ea5y m\u1eabu l\u00ean t\u1edbi 24.000 m\u1eabu\/gi\u00e2y (24kHz).<\/p><p>WaveNet \u0111\u00e3 \u0111\u01b0a \u0111i\u1ec3m \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng gi\u1ecdng \u0111\u1ecdc (Mean Opinion Score &#8211; MOS) c\u1ee7a m\u00e1y t\u00ednh ti\u1ec7m c\u1eadn s\u00e1t v\u1edbi gi\u1ecdng ng\u01b0\u1eddi th\u1eadt, m\u1edf ra k\u1ef7 nguy\u00ean ph\u00e1t tri\u1ec3n r\u1ef1c r\u1ee1 c\u1ee7a <b>neural text to speech<\/b>.<\/p><h3><span class=\"ez-toc-section\" id=\"62_Cac_kien_truc_End-to-End_va_Neural_Vocoder\"><\/span><b>6.2 C\u00e1c ki\u1ebfn tr\u00fac End-to-End v\u00e0 Neural Vocoder<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>D\u00f9 c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng tuy\u1ec7t v\u1eddi, WaveNet ban \u0111\u1ea7u g\u1eb7p h\u1ea1n ch\u1ebf v\u1ec1 t\u1ed1c \u0111\u1ed9 kh\u1edfi t\u1ea1o \u00e2m thanh t\u01b0\u01a1ng \u0111\u1ed1i ch\u1eadm. Ng\u00e0nh c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i sau \u0111\u00f3 \u0111\u00e3 n\u00e2ng c\u1ea5p sang c\u00e1c ki\u1ebfn tr\u00fac hai giai \u0111o\u1ea1n hi\u1ec7n \u0111\u1ea1i ho\u1eb7c m\u00f4 h\u00ecnh End-to-End to\u00e0n di\u1ec7n:<\/p><ul><li><b>M\u00f4 h\u00ecnh \u00e2m h\u1ecdc n\u01a1-ron (Acoustic Models):<\/b> C\u00e1c ki\u1ebfn tr\u00fac ti\u00eau bi\u1ec3u nh\u01b0 <b>Tacotron 2<\/b> hay <b>FastSpeech<\/b> nh\u1eadn v\u0103n b\u1ea3n \u0111\u1ea7u v\u00e0o v\u00e0 chuy\u1ec3n \u0111\u1ed5i tr\u1ef1c ti\u1ebfp th\u00e0nh <b>Mel-spectrogram<\/b>.<\/li><li><b>Neural Vocoder:<\/b> C\u00e1c m\u1ea1ng n\u01a1-ron chuy\u00ean bi\u1ec7t nh\u01b0 <b>HiFi-GAN<\/b> nh\u1eadn b\u1ea3n bi\u1ec3u di\u1ec5n Mel-spectrogram v\u00e0 t\u1ed5ng h\u1ee3p th\u00e0nh s\u00f3ng \u00e2m thanh ho\u00e0n ch\u1ec9nh v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh g\u1ea5p h\u00e0ng tr\u0103m l\u1ea7n th\u1eddi gian th\u1ef1c.<\/li><\/ul><p><b>Quy tr\u00ecnh x\u1eed l\u00fd:<\/b><em><strong> V\u0103n b\u1ea3n \u2192 Acoustic Model (Tacotron 2 \/ FastSpeech) \u2192 Mel-spectrogram \u2192 Neural Vocoder (HiFi-GAN) \u2192 \u00c2m thanh 24kHz<\/strong><\/em><\/p><p>\u0110\u1ec3 ng\u01b0\u1eddi kh\u00f4ng chuy\u00ean d\u1ec5 h\u00ecnh dung c\u00e1c thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o gi\u1ea3i th\u00edch d\u01b0\u1edbi \u0111\u00e2y:<\/p><ul><li><b>Mel-spectrogram:<\/b> C\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t &#8220;b\u1ea3n k\u00fd \u00e2m d\u1ea1ng h\u00ecnh \u1ea3nh&#8221; c\u1ee7a \u00e2m thanh, hi\u1ec3n th\u1ecb s\u1ef1 thay \u0111\u1ed5i t\u1ea7n s\u1ed1 v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh theo th\u1eddi gian d\u1ef1a tr\u00ean thang \u0111o c\u1ea3m nh\u1eadn c\u1ee7a tai ng\u01b0\u1eddi (Mel scale).<\/li><li><b>Acoustic Model:<\/b> M\u00f4 h\u00ecnh h\u1ecdc m\u00e1y \u0111\u00f3ng vai tr\u00f2 &#8220;d\u1ecbch gi\u1ea3&#8221;, chuy\u1ec3n \u0111\u1ed5i chu\u1ed7i k\u00fd t\u1ef1 v\u0103n b\u1ea3n th\u00e0nh b\u1ea3n k\u00fd \u00e2m Mel-spectrogram.<\/li><li><b>Neural Vocoder:<\/b> B\u1ed9 ph\u00e1t \u00e2m \u1ee9ng d\u1ee5ng AI \u0111\u00f3ng vai tr\u00f2 nh\u01b0 &#8220;nh\u1ea1c c\u00f4ng&#8221;, d\u1ecbch b\u1ea3n k\u00fd \u00e2m Mel-spectrogram th\u00e0nh chu\u1ed7i s\u00f3ng \u00e2m thanh th\u1ef1c t\u1ebf ph\u00e1t ra loa.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"63_Danh_gia_uu_va_nhuoc_diem\"><\/span><b>6.3 \u0110\u00e1nh gi\u00e1 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><b>\u01afu \u0111i\u1ec3m:<\/b> \u0110\u1ed9 t\u1ef1 nhi\u00ean kinh ng\u1ea1c, th\u1ec3 hi\u1ec7n m\u01b0\u1ee3t m\u00e0 ng\u1eef \u0111i\u1ec7u, ng\u1eaft ngh\u1ec9, nh\u1ecbp th\u1edf, nh\u1ea5n gi\u1ecdng v\u00e0 bi\u1ec3u c\u1ea3m c\u1ea3m x\u00fac. T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh th\u1ebf h\u1ec7 m\u1edbi c\u1ef1c k\u1ef3 t\u1ed1i \u01b0u.<\/li><li><b>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/b> \u0110\u00f2i h\u1ecfi h\u1ea1 t\u1ea7ng t\u00ednh to\u00e1n ph\u1ea7n c\u1ee9ng cao (y\u00eau c\u1ea7u card \u0111\u1ed3 h\u1ecda GPU chuy\u00ean d\u1ee5ng \u0111\u1ec3 hu\u1ea5n luy\u1ec7n v\u00e0 x\u1eed l\u00fd), ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ed5 \u0111i\u1ec3n.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"7_Su_chuyen_dich_tu_TTS_truyen_thong_sang_he_sinh_thai_%E2%80%9CAI_Voice%E2%80%9D\"><\/span><b>7. S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb TTS truy\u1ec1n th\u1ed1ng sang h\u1ec7 sinh th\u00e1i &#8220;AI Voice&#8221;<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>Kh\u00e1i ni\u1ec7m <b>&#8220;AI Voice&#8221;<\/b> (hay <b>c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i AI<\/b>) ng\u00e0y nay kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 t\u00ean g\u1ecdi kh\u00e1c c\u1ee7a Neural TTS, m\u00e0 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t h\u1ec7 sinh th\u00e1i c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i \u1ee9ng d\u1ee5ng AI to\u00e0n di\u1ec7n. S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb TTS truy\u1ec1n th\u1ed1ng sang AI Voice th\u1ec3 hi\u1ec7n b\u01b0\u1edbc ti\u1ebfn d\u00e0i v\u1ec1 c\u1ea3 n\u0103ng l\u1ef1c k\u1ef9 thu\u1eadt l\u1eabn ph\u1ea1m vi \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p><h3><span class=\"ez-toc-section\" id=\"71_Phan_biet_ban_chat_%E2%80%9CTTS_truyen_thong%E2%80%9D_va_%E2%80%9CAI_Voice%E2%80%9D\"><\/span><b>7.1 Ph\u00e2n bi\u1ec7t b\u1ea3n ch\u1ea5t &#8220;TTS truy\u1ec1n th\u1ed1ng&#8221; v\u00e0 &#8220;AI Voice&#8221;<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><table style=\"width: 97.4464%; height: 461px;\">\n<tbody>\n<tr>\n<td>\n<p><b>Ti\u00eau ch\u00ed<\/b><\/p>\n<\/td>\n<td>\n<p><b>TTS truy\u1ec1n th\u1ed1ng (Formant \/ Concatenative \/ SPSS)<\/b><\/p>\n<\/td>\n<td>\n<p><b>H\u1ec7 sinh th\u00e1i AI Voice hi\u1ec7n \u0111\u1ea1i<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><b>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/b><\/p>\n<\/td>\n<td>\n<p>D\u1ef1a tr\u00ean quy t\u1eafc c\u1ed1 \u0111\u1ecbnh, gh\u00e9p \u0111o\u1ea1n ghi \u00e2m ho\u1eb7c m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea HMM<\/p>\n<\/td>\n<td>\n<p>D\u1ef1a tr\u00ean c\u00e1c m\u1ea1ng n\u01a1-ron s\u00e2u (Deep Neural Networks) t\u1ef1 h\u1ecdc t\u1eeb t\u1eadp d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><b>\u0110\u1ed9 t\u1ef1 nhi\u00ean &amp; Ng\u1eef \u0111i\u1ec7u<\/b><\/p>\n<\/td>\n<td>\n<p>C\u1ee9ng nh\u1eafc, d\u1ec5 gi\u00e1n \u0111o\u1ea1n \u00e2m thanh ho\u1eb7c gi\u1ecdng b\u1ecb m\u1edd d\u1ea1ng robot<\/p>\n<\/td>\n<td>\n<p>T\u1ef1 nhi\u00ean nh\u01b0 ng\u01b0\u1eddi th\u1eadt, t\u1ef1 \u0111\u1ed9ng ph\u00e2n t\u00edch ng\u1eef c\u1ea3nh \u0111\u1ec3 th\u1ea3 ng\u1eef \u0111i\u1ec7u ph\u00f9 h\u1ee3p<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><b>T\u1ea1o gi\u1ecdng m\u1edbi<\/b><\/p>\n<\/td>\n<td>\n<p>T\u1ed1n h\u00e0ng th\u00e1ng thu \u00e2m v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00f4 c\u00f9ng ph\u1ee9c t\u1ea1p<\/p>\n<\/td>\n<td>\n<p>C\u00f3 th\u1ec3 nh\u00e2n b\u1ea3n gi\u1ecdng m\u1edbi (Voice Cloning) ch\u1ec9 t\u1eeb m\u1ed9t \u0111o\u1ea1n \u00e2m thanh m\u1eabu ng\u1eafn<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><b>Bi\u1ec3u c\u1ea3m &amp; T\u00f9y bi\u1ebfn<\/b><\/p>\n<\/td>\n<td>\n<p>H\u1ea7u nh\u01b0 kh\u00f4ng th\u1ec3 t\u00f9y ch\u1ec9nh c\u1ea3m x\u00fac hay phong c\u00e1ch<\/p>\n<\/td>\n<td>\n<p>Cho ph\u00e9p ch\u1ee7 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n phong c\u00e1ch \u0111\u1ecdc, bi\u1ec3u c\u1ea3m (vui, bu\u1ed3n, t\u1ee9c gi\u1eadn, truy\u1ec1n c\u1ea3m)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><b>Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p<\/b><\/p>\n<\/td>\n<td>\n<p>Th\u01b0\u1eddng ch\u1ea1y offline c\u1ee5c b\u1ed9 ho\u1eb7c ph\u1ea7n m\u1ec1m \u0111\u00f3ng g\u00f3i<\/p>\n<\/td>\n<td>\n<p>T\u00edch h\u1ee3p linh ho\u1ea1t qua Cloud API, h\u1ed7 tr\u1ee3 quy m\u00f4 l\u1edbn, l\u1ed3ng ti\u1ebfng t\u1ef1 \u0111\u1ed9ng<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3><span class=\"ez-toc-section\" id=\"72_AI_Voice_mo_rong_pham_vi_ung_dung_cua_TTS\"><\/span><b>7.2 AI Voice m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a TTS<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>S\u1ef1 b\u00f9ng n\u1ed5 c\u1ee7a <b>t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng AI<\/b> \u0111\u00e3 m\u1edf r\u1ed9ng ph\u1ea1m vi s\u1eed d\u1ee5ng, \u0111\u01b0a TTS v\u01b0\u1ee3t kh\u1ecfi b\u00e0i to\u00e1n \u0111\u1ecdc file \u00e2m thanh t\u0129nh \u0111\u1ec3 \u0111i s\u00e2u v\u00e0o c\u00e1c quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a ph\u1ee9c t\u1ea1p:<\/p><ul><li><b>L\u1ed3ng ti\u1ebfng video t\u1ef1 \u0111\u1ed9ng (AI Dubbing):<\/b> T\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i ph\u1ee5 \u0111\u1ec1 th\u00e0nh tho\u1ea1i, \u0111\u1ed3ng b\u1ed9 ch\u00ednh x\u00e1c theo timeline video m\u00e0 kh\u00f4ng c\u1ea7n ph\u00f2ng thu chuy\u00ean nghi\u1ec7p.<\/li><li><b>Tr\u1ea3i nghi\u1ec7m h\u1ed9i tho\u1ea1i th\u1eddi gian th\u1ef1c (Conversational AI):<\/b> K\u1ebft h\u1ee3p v\u1edbi c\u00e1c m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn (LLM) \u0111\u1ec3 l\u00e0m tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o cho tr\u1ee3 l\u00fd \u1ea3o, t\u1ed5ng \u0111\u00e0i th\u00f4ng minh c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c hai chi\u1ec1u m\u01b0\u1ee3t m\u00e0.<\/li><li><b>T\u00edch h\u1ee3p linh ho\u1ea1t qua Cloud API:<\/b> Cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 doanh nghi\u1ec7p d\u1ec5 d\u00e0ng nh\u00fang h\u1ea1 t\u1ea7ng <a href=\"https:\/\/vbee.vn\/blog\/ai\/giong-noi-tri-tue-nhan-tao\/\" class=\"ilj-link\">gi\u1ecdng n\u00f3i AI<\/a> v\u00e0o website, \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng hay h\u1ec7 th\u1ed1ng qu\u1ea3n tr\u1ecb n\u1ed9i dung s\u1eb5n c\u00f3.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"8_Vi_sao_cac_cong_nghe_TTS_cu_van_ton_tai\"><\/span><b>8. V\u00ec sao c\u00e1c c\u00f4ng ngh\u1ec7 TTS c\u0169 v\u1eabn t\u1ed3n t\u1ea1i?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>M\u1eb7c d\u00f9 Neural TTS v\u00e0 AI Voice mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i, s\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb TTS sang AI Voice kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 c\u0169 b\u1ecb x\u00f3a b\u1ecf ho\u00e0n to\u00e0n. Tr\u00ean th\u1ef1c t\u1ebf, nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p v\u1eabn \u0111\u1ed3ng t\u1ed3n t\u1ea1i song song t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee7a t\u1eebng b\u00e0i to\u00e1n k\u1ef9 thu\u1eadt:<\/p><ul><li><b>Thi\u1ebft b\u1ecb nh\u00fang v\u00e0 IoT t\u00e0i nguy\u00ean h\u1ea1n ch\u1ebf:<\/b> C\u00e1c vi \u0111i\u1ec1u khi\u1ec3n, ph\u1ea7n c\u1ee9ng thi\u1ebft b\u1ecb gia d\u1ee5ng (nh\u01b0 l\u00f2 vi s\u00f3ng, \u0111\u1ed3ng h\u1ed3 th\u00f4ng minh, m\u00e1y \u0111o huy\u1ebft \u00e1p) kh\u00f4ng c\u00f3 GPU v\u00e0 dung l\u01b0\u1ee3ng b\u1ed9 nh\u1edb c\u1ef1c nh\u1ecf (ch\u1ec9 v\u00e0i megabyte) v\u1eabn \u01b0u ti\u00ean s\u1eed d\u1ee5ng <b>Formant Synthesis<\/b> ho\u1eb7c <b>SPSS<\/b> g\u1ecdn nh\u1eb9 \u0111\u1ec3 ph\u00e1t t\u00edn hi\u1ec7u th\u00f4ng b\u00e1o.<\/li><li><b>Y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1ec5 b\u1eb1ng 0 v\u00e0 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng Internet:<\/b> C\u00e1c h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o h\u00e0ng kh\u00f4ng, thi\u1ebft b\u1ecb qu\u00e2n s\u1ef1 ho\u1eb7c t\u1ed5ng \u0111\u00e0i kh\u1ea9n c\u1ea5p lu\u00f4n \u0111\u1eb7t \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u v\u00e0o s\u1ef1 \u1ed5n \u0111\u1ecbnh. H\u1ecd ch\u1ecdn gi\u1ea3i ph\u00e1p TTS truy\u1ec1n th\u1ed1ng nh\u1eb9, v\u1eadn h\u00e0nh offline ho\u00e0n to\u00e0n tr\u00ean CPU gi\u00e1 r\u1ebb m\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebft n\u1ed1i m\u1ea1ng hay h\u1ea1 t\u1ea7ng Cloud GPU.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"9_Nhung_gioi_han_va_thach_thuc_con_ton_tai_cua_AI_Voice\"><\/span><b>9. Nh\u1eefng gi\u1edbi h\u1ea1n v\u00e0 th\u00e1ch th\u1ee9c c\u00f2n t\u1ed3n t\u1ea1i c\u1ee7a AI Voice<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>D\u00f9 \u0111\u00e3 g\u1eb7t h\u00e1i nhi\u1ec1u th\u00e0nh t\u1ef1u v\u01b0\u1ee3t b\u1eadc, <a href=\"https:\/\/vbee.vn\/blog\/news\/giong-noi-ai\/\" class=\"ilj-link\">c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i AI<\/a> hi\u1ec7n v\u1eabn \u0111ang \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn v\u1ec1 c\u1ea3 m\u1eb7t k\u1ef9 thu\u1eadt l\u1eabn x\u00e3 h\u1ed9i:<\/p><ul><li><b>R\u1ee7i ro l\u1eeba \u0111\u1ea3o v\u00e0 Deepfake gi\u1ecdng n\u00f3i:<\/b> Kh\u1ea3 n\u0103ng <a rel=\"noopener\" target=\"_blank\" href=\"https:\/\/vbee.vn\/voice-cloning\" class=\"ilj-link\">nh\u00e2n b\u1ea3n gi\u1ecdng n\u00f3i<\/a> qu\u00e1 ch\u00e2n th\u1ef1c \u0111ang b\u1ecb m\u1ed9t s\u1ed1 \u0111\u1ed1i t\u01b0\u1ee3ng x\u1ea5u l\u1ee3i d\u1ee5ng \u0111\u1ec3 gi\u1ea3 m\u1ea1o gi\u1ecdng ng\u01b0\u1eddi th\u00e2n, d\u00e0n d\u1ef1ng c\u00e1c cu\u1ed9c g\u1ecdi l\u1eeba \u0111\u1ea3o t\u00e0i ch\u00ednh ho\u1eb7c m\u1ea1o danh ch\u00ednh tr\u1ecb gia.<\/li><li><b>Hi\u1ec7n t\u01b0\u1ee3ng &#8220;\u1ea3o gi\u00e1c&#8221; ng\u1eef \u0111i\u1ec7u (Intonation Hallucination):<\/b> Khi x\u1eed l\u00fd c\u00e1c \u0111o\u1ea1n v\u0103n b\u1ea3n ph\u1ee9c t\u1ea1p, ch\u1ee9a nhi\u1ec1u k\u00fd hi\u1ec7u \u0111\u1eb7c bi\u1ec7t ho\u1eb7c c\u00e2u t\u1eeb \u0111a ngh\u0129a, m\u00f4 h\u00ecnh AI v\u1eabn c\u00f3 th\u1ec3 \u0111\u1ecdc sai tr\u1ecdng \u00e2m, ng\u1eaft ngh\u1ec9 l\u1ec7ch v\u1ecb tr\u00ed ho\u1eb7c ph\u00e1t ra \u00e2m thanh l\u1ea1.<\/li><li><b>B\u00e0i to\u00e1n b\u1ea3n quy\u1ec1n v\u00e0 \u0111\u1ea1o \u0111\u1ee9c d\u1eef li\u1ec7u:<\/b> Vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u gi\u1ecdng \u0111\u1ecdc c\u1ee7a c\u00e1c ngh\u1ec7 s\u0129, ph\u00e1t thanh vi\u00ean \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh AI khi ch\u01b0a c\u00f3 s\u1ef1 \u0111\u1ed3ng \u00fd \u0111ang \u0111\u1eb7t ra nh\u1eefng tranh c\u00e3i ph\u00e1p l\u00fd gay g\u1eaft tr\u00ean to\u00e0n c\u1ea7u.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"10_Vbee_AIVoice_Dau_an_phat_trien_cong_nghe_giong_noi_AI_tai_Viet_Nam\"><\/span><b>10. Vbee AIVoice: D\u1ea5u \u1ea5n ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i AI t\u1ea1i Vi\u1ec7t Nam<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2><p>T\u1ea1i Vi\u1ec7t Nam, qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 Text to Speech \u0111\u1ed1i m\u1eb7t v\u1edbi th\u1eed th\u00e1ch kh\u00f4ng nh\u1ecf do <b>ti\u1ebfng Vi\u1ec7t l\u00e0 ng\u00f4n ng\u1eef \u0111\u01a1n l\u1eadp v\u1edbi h\u1ec7 th\u1ed1ng thanh \u0111i\u1ec7u v\u00f4 c\u00f9ng phong ph\u00fa<\/b> (6 thanh \u0111i\u1ec7u, s\u1ef1 kh\u00e1c bi\u1ec7t v\u00f9ng mi\u1ec1n B\u1eafc &#8211; Trung &#8211; Nam, t\u1eeb gh\u00e9p, t\u1eeb H\u00e1n-Vi\u1ec7t v\u00e0 t\u1eeb m\u01b0\u1ee3n ti\u1ebfng Anh).<\/p><figure id=\"attachment_30731\" aria-describedby=\"caption-attachment-30731\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-30731\" src=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/nen-tang-chuyen-van-ban-thanh-giong-noi-vbee-aivoice.webp\" alt=\"Giao di\u1ec7n n\u1ec1n t\u1ea3ng chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i Vbee AIVoice\" width=\"900\" height=\"600\" title=\"\" srcset=\"https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/nen-tang-chuyen-van-ban-thanh-giong-noi-vbee-aivoice.webp 900w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/nen-tang-chuyen-van-ban-thanh-giong-noi-vbee-aivoice-300x200.webp 300w, https:\/\/vbee.vn\/blog\/wp-content\/uploads\/2025\/08\/nen-tang-chuyen-van-ban-thanh-giong-noi-vbee-aivoice-768x512.webp 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-30731\" class=\"wp-caption-text\">Giao di\u1ec7n n\u1ec1n t\u1ea3ng chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i Vbee AIVoice.<\/figcaption><\/figure><button translate=\"no\" class=\"btg-button btg-button-2\" data-btnid=\"2\" id=\"VN_POSTCTA\" data-url=\"https:\/\/vbee.vn\/register?utm_source=BL&amp;utm_medium=REF&amp;utm_term=ID2&amp;utm_campaign=INT_UNK_CTA_UNK_UNK_A_VN_S_UNK_UNK\" data-action=\"link\" data-target=\"_self\">D\u00f9ng th\u1eed mi\u1ec5n ph\u00ed<span class=\" btg-icon \"><\/span><\/button><p>S\u1ef1 ra \u0111\u1eddi c\u1ee7a <a rel=\"noopener\" target=\"_blank\" href=\"https:\/\/vbee.vn\" class=\"ilj-link\">Vbee AIVoice<\/a> \u0111\u00e3 \u0111\u00e1nh d\u1ea5u b\u01b0\u1edbc chuy\u1ec3n m\u00ecnh quan tr\u1ecdng c\u1ee7a c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i AI t\u1ea1i Vi\u1ec7t Nam, \u0111\u01b0a s\u1ea3n ph\u1ea9m \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng ti\u1ec7m c\u1eadn c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0ng \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a s\u00e2u cho ng\u00f4n ng\u1eef b\u1ea3n \u0111\u1ecba.<\/p><h3><span class=\"ez-toc-section\" id=\"101_Nang_luc_xu_ly_dac_thu_tieng_Viet\"><\/span><b>10.1 N\u0103ng l\u1ef1c x\u1eed l\u00fd \u0111\u1eb7c th\u00f9 ti\u1ebfng Vi\u1ec7t<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>Vbee AIVoice gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 c\u00e1c r\u00e0o c\u1ea3n x\u1eed l\u00fd ng\u00f4n ng\u1eef ti\u1ebfng Vi\u1ec7t nh\u1edd v\u00e0o:<\/p><ul><li><b>Thu\u1eadt to\u00e1n ph\u00e2n t\u00edch ng\u1eef \u00e2m th\u00f4ng minh:<\/b> Ph\u00e2n t\u00edch chu\u1ea9n x\u00e1c thanh \u0111i\u1ec7u, tr\u1ecdng \u00e2m c\u00e2u, t\u1ef1 \u0111\u1ed9ng x\u1eed l\u00fd m\u01b0\u1ee3t m\u00e0 c\u00e1c t\u1eeb vi\u1ebft t\u1eaft, con s\u1ed1, ng\u00e0y th\u00e1ng, ti\u1ec1n t\u1ec7 v\u00e0 c\u00e1c t\u1eeb m\u01b0\u1ee3n ti\u1ebfng Anh xu\u1ea5t hi\u1ec7n trong v\u0103n b\u1ea3n.<\/li><li><b>Ng\u1eaft ngh\u1ec9 t\u1ef1 nhi\u00ean theo ng\u1eef c\u1ea3nh:<\/b> AI t\u1ef1 \u0111\u1ed9ng nh\u1eadn di\u1ec7n c\u1ea5u tr\u00fac c\u00e2u ph\u1ee9c \u0111\u1ec3 ch\u00e8n kho\u1ea3ng ng\u1eaft ngh\u1ec9 h\u1ee3p l\u00fd, t\u1ea1o cho gi\u1ecdng \u0111\u1ecdc nh\u1ecbp th\u1edf t\u1ef1 nhi\u00ean, kh\u00f4ng b\u1ecb h\u1ee5t h\u01a1i.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"102_Quy_mo_he_sinh_thai_cong_nghe_Vbee_AIVoice\"><\/span><b>10.2 Quy m\u00f4 h\u1ec7 sinh th\u00e1i c\u00f4ng ngh\u1ec7 Vbee AIVoice<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0110\u1ebfn nay, Vbee AIVoice \u0111\u00e3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 sinh th\u00e1i h\u1ea1 t\u1ea7ng AI gi\u1ecdng n\u00f3i m\u1ea1nh m\u1ebd:<\/p><ul><li>S\u1edf h\u1eefu th\u01b0 vi\u1ec7n <b>1.000+ gi\u1ecdng AI<\/b> \u0111a d\u1ea1ng gi\u1edbi t\u00ednh, \u0111\u1ed9 tu\u1ed5i, phong c\u00e1ch v\u00e0 \u0111\u1ea7y \u0111\u1ee7 c\u00e1c v\u00f9ng mi\u1ec1n (B\u1eafc, Trung, Nam).<\/li><li>H\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i <b>h\u01a1n 50 ng\u00f4n ng\u1eef<\/b> tr\u00ean th\u1ebf gi\u1edbi.<\/li><li>Ph\u1ee5c v\u1ee5 h\u01a1n <b>3 tri\u1ec7u ng\u01b0\u1eddi d\u00f9ng<\/b> c\u00e1 nh\u00e2n, nh\u00e0 s\u00e1ng t\u1ea1o n\u1ed9i dung, ng\u01b0\u1eddi l\u00e0m video, podcast, s\u00e1ch n\u00f3i v\u00e0 b\u00e1o \u0111i\u1ec7n t\u1eed.<\/li><li>\u0110\u01b0\u1ee3c tin d\u00f9ng b\u1edfi <b>500+ doanh nghi\u1ec7p\/SME<\/b> v\u00e0 c\u00e1c t\u1eadp \u0111o\u00e0n l\u1edbn.<\/li><li>H\u1ec7 th\u1ed1ng \u0111\u00e3 x\u1eed l\u00fd th\u00e0nh c\u00f4ng <b>h\u01a1n 200 t\u1ef7 k\u00fd t\u1ef1<\/b> v\u0103n b\u1ea3n.<\/li><li>D\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p, t\u1ed5ng \u0111\u00e0i t\u1ef1 \u0111\u1ed9ng hay chatbot th\u00f4ng qua n\u1ec1n t\u1ea3ng <a href=\"https:\/\/vbee.vn\/api-docs\">AIVoice API<\/a>.<\/li><\/ul><p>N\u0103ng l\u1ef1c h\u1ea1 t\u1ea7ng c\u00f9ng kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng quy m\u00f4 linh ho\u1ea1t c\u1ee7a Vbee \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ee7ng c\u1ed1 v\u00e0 ch\u1ee9ng minh qua <a href=\"https:\/\/cloud.google.com\/customers\/vbee\" rel=\"nofollow noopener\" target=\"_blank\">nghi\u00ean c\u1ee9u t\u00ecnh hu\u1ed1ng c\u1ee7a Google Cloud<\/a>, kh\u1eb3ng \u0111\u1ecbnh v\u1ecb th\u1ebf v\u1eefng ch\u1eafc c\u1ee7a gi\u1ea3i ph\u00e1p Vi\u1ec7t tr\u00ean b\u1ea3n \u0111\u1ed3 c\u00f4ng ngh\u1ec7 gi\u1ecdng n\u00f3i.<\/p><h2><span class=\"ez-toc-section\" id=\"11_Mot_so_cau_hoi_thuong_gap_FAQs\"><\/span>11. M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2><div id=\"rank-math-rich-snippet-wrapper\"><div id=\"rank-math-faq\" class=\"rank-math-block\"><div class=\"rank-math-list \"><div id=\"faq-1\" class=\"rank-math-list-item\"><h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"111_Cong_nghe_chuyen_van_ban_thanh_giong_noi_Text_to_Speech_bat_dau_tu_khi_nao\"><\/span>11.1 C\u00f4ng ngh\u1ec7 chuy\u1ec3n v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i (Text to Speech) b\u1eaft \u0111\u1ea7u t\u1eeb khi n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"rank-math-answer \"><p>C\u00f4ng ngh\u1ec7 chuy\u1ec3n v\u0103n b\u1ea3n th\u00e0nh gi\u1ecdng n\u00f3i b\u1eaft ngu\u1ed3n t\u1eeb th\u1ebf k\u1ef7 18 v\u1edbi nh\u1eefng m\u00e1y m\u00f3c c\u01a1 h\u1ecdc \u0111\u01a1n gi\u1ea3n m\u00f4 ph\u1ecfng gi\u1ecdng n\u00f3i. Tuy nhi\u00ean, b\u01b0\u1edbc ti\u1ebfn l\u1edbn \u0111\u1ea7u ti\u00ean trong t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng m\u00e1y t\u00ednh b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng n\u0103m 1950 v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i \u0111\u1ea7u ti\u00ean s\u1eed d\u1ee5ng m\u00e1y t\u00ednh l\u1edbn.<\/p><\/div><\/div><div id=\"faq-2\" class=\"rank-math-list-item\"><h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"112_Ai_la_nguoi_tien_phong_trong_viec_tong_hop_giong_noi_bang_may_tinh\"><\/span>11.2 Ai l\u00e0 ng\u01b0\u1eddi ti\u00ean phong trong vi\u1ec7c t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng m\u00e1y t\u00ednh?<span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"rank-math-answer \"><p>John Larry Kelly, Jr v\u00e0 Louis Gerstman t\u1ea1i Bell Labs \u0111\u01b0\u1ee3c xem l\u00e0 nh\u1eefng nh\u00e0 ti\u00ean phong v\u1edbi h\u1ec7 th\u1ed1ng t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i b\u1eb1ng m\u00e1y t\u00ednh IBM 704 v\u00e0o n\u0103m 1961. H\u1ecd \u0111\u00e3 t\u1ea1o ra phi\u00ean b\u1ea3n gi\u1ecdng h\u00e1t n\u1ed5i ti\u1ebfng \u201cDaisy Bell\u201d.<\/p><\/div><\/div><div id=\"faq-3\" class=\"rank-math-list-item\"><h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"113_Cong_nghe_Text_to_Speech_phat_trien_nhu_the_nao_trong_giai_doan_1970_%E2%80%93_2010\"><\/span>11.3 C\u00f4ng ngh\u1ec7 Text to Speech ph\u00e1t tri\u1ec3n nh\u01b0 th\u1ebf n\u00e0o trong giai \u0111o\u1ea1n 1970 \u2013 2010?<span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"rank-math-answer \"><p>Trong giai \u0111o\u1ea1n n\u00e0y, nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p m\u00e3 h\u00f3a gi\u1ecdng n\u00f3i m\u1edbi ra \u0111\u1eddi, c\u00f9ng v\u1edbi s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb c\u1ea7m tay, \u0111\u1ed3 ch\u01a1i t\u1ed5ng h\u1ee3p gi\u1ecdng n\u00f3i v\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ecdc m\u00e0n h\u00ecnh nh\u01b0 Microsoft Narrator. Gi\u1ecdng n\u00f3i t\u1ed5ng h\u1ee3p d\u1ea7n tr\u1edf n\u00ean t\u1ef1 nhi\u00ean h\u01a1n, nh\u01b0ng v\u1eabn c\u00f2n h\u1ea1n ch\u1ebf v\u1ec1 c\u1ea3m x\u00fac v\u00e0 ng\u1eef \u0111i\u1ec7u.<\/p><\/div><\/div><div id=\"faq-4\" class=\"rank-math-list-item\"><h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"114_AI_va_mang_no-ron_sau_DNN_da_thay_doi_cong_nghe_TTS_ra_sao_tu_nam_2010_den_nay\"><\/span>11.4 AI v\u00e0 m\u1ea1ng n\u01a1-ron s\u00e2u (DNN) \u0111\u00e3 thay \u0111\u1ed5i c\u00f4ng ngh\u1ec7 TTS ra sao t\u1eeb n\u0103m 2010 \u0111\u1ebfn nay?<span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"rank-math-answer \"><p>T\u1eeb n\u0103m 2010, AI v\u00e0 c\u00e1c m\u00f4 h\u00ecnh Deep Neural Networks gi\u00fap m\u00f4 ph\u1ecfng ch\u00ednh x\u00e1c c\u00e1ch ph\u00e1t \u00e2m, ng\u1eef \u0111i\u1ec7u v\u00e0 c\u1ea3m x\u00fac c\u1ee7a con ng\u01b0\u1eddi. Gi\u1ecdng n\u00f3i t\u1ed5ng h\u1ee3p nh\u1edd \u0111\u00f3 tr\u1edf n\u00ean t\u1ef1 nhi\u00ean, m\u01b0\u1ee3t m\u00e0 v\u00e0 \u0111a d\u1ea1ng h\u01a1n r\u1ea5t nhi\u1ec1u, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong tr\u1ee3 l\u00fd \u1ea3o, d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng, gi\u1ea3i tr\u00ed v\u00e0 gi\u00e1o d\u1ee5c.<\/p><\/div><\/div><\/div><\/div><\/div><p>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n Text to Speech l\u00e0 m\u1ed9t h\u00e0nh tr\u00ecnh d\u00e0i b\u1ee9t ph\u00e1 kh\u1ecfi nh\u1eefng gi\u1edbi h\u1ea1n v\u1eadt l\u00fd c\u1ee7a m\u00e1y m\u00f3c \u0111\u1ec3 ti\u1ebfn t\u1edbi kh\u1ea3 n\u0103ng giao ti\u1ebfp t\u1ef1 nhi\u00ean nh\u01b0 con ng\u01b0\u1eddi. T\u1eeb nh\u1eefng c\u1ed7 m\u00e1y c\u01a1 h\u1ecdc th\u00f4 s\u01a1 c\u1ee7a th\u1ebf k\u1ef7 18, tr\u1ea3i qua k\u1ef7 nguy\u00ean gh\u00e9p n\u1ed1i \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1, c\u00f4ng ngh\u1ec7 \u0111\u00e3 ch\u1ea1m t\u1edbi \u0111\u1ec9nh cao m\u1edbi v\u1edbi m\u1ea1ng n\u01a1-ron s\u00e2u v\u00e0 h\u1ec7 sinh th\u00e1i AI Voice to\u00e0n di\u1ec7n.<\/p><p>S\u1ef1 ti\u1ebfn h\u00f3a n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap m\u00e1y t\u00ednh &#8220;bi\u1ebft n\u00f3i&#8221;, m\u00e0 c\u00f2n thay \u0111\u1ed5i ho\u00e0n to\u00e0n c\u00e1ch con ng\u01b0\u1eddi t\u1ea1o ra n\u1ed9i dung, ti\u1ebfp c\u1eadn th\u00f4ng tin v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00f4ng ngh\u1ec7. Trong t\u01b0\u01a1ng lai, c\u00f9ng v\u1edbi s\u1ef1 ho\u00e0n thi\u1ec7n v\u1ec1 m\u1eb7t \u0111\u1ea1o \u0111\u1ee9c v\u00e0 khung ph\u00e1p l\u00fd, AI Voice ch\u1eafc ch\u1eafn s\u1ebd c\u00f2n ti\u1ebfn xa h\u01a1n n\u1eefa tr\u00ean h\u00e0nh tr\u00ecnh x\u00f3a b\u1ecf r\u00e0o c\u1ea3n giao ti\u1ebfp gi\u1eefa ng\u01b0\u1eddi v\u00e0 m\u00e1y.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n Text to Speech (TTS) kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 c\u00e2u chuy\u1ec7n v\u1ec1 m\u1ed9t ph\u00e1t minh \u0111\u01a1n l\u1ebb, m\u00e0 l\u00e0 h\u00e0nh tr\u00ecnh ti\u1ebfn h\u00f3a l\u00e2u d\u00e0i c\u1ee7a khoa h\u1ecdc trong vi\u1ec7c bi\u1ec3u di\u1ec5n, m\u00f4 h\u00ecnh h\u00f3a v\u00e0 t\u1ea1o ra ti\u1ebfng n\u00f3i m\u00e1y t\u00ednh. T\u1eeb nh\u1eefng c\u1ed7 m\u00e1y c\u01a1 h\u1ecdc m\u00f4 ph\u1ecfng h\u1ec7 h\u00f4&#8230;<\/p>\n","protected":false},"author":12,"featured_media":17155,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[216],"tags":[],"class_list":["post-17124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-van-ban-thanh-giong-noi"],"_links":{"self":[{"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/posts\/17124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/comments?post=17124"}],"version-history":[{"count":18,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/posts\/17124\/revisions"}],"predecessor-version":[{"id":30757,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/posts\/17124\/revisions\/30757"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/media\/17155"}],"wp:attachment":[{"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/media?parent=17124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/categories?post=17124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vbee.vn\/blog\/wp-json\/wp\/v2\/tags?post=17124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}