口播神器,基於Edge,微軟TTS(text-to-speech)文字轉語音免費開源庫edge-tts實踐(Python3.10)

劉悅的技術部落格發表於2023-03-07
微軟TTSPython

不能否認，微軟Azure在TTS(text-to-speech文字轉語音)這個人工智慧細分領域的影響力是統治級的，一如ChatGPT在NLP領域的隨心所欲，予取予求。君不見幾乎所有的抖音營銷號口播均採用微軟的語音合成技術，其影響力由此可見一斑，僅有的白璧微瑕之處就是價格略高，雖然國內也可以使用科大訊飛語音合成進行平替，但我們只想要最好的那一個，本次我們使用免費的開源庫edge-tts來實現文字轉語音操作，薅微軟edge的羊毛。

TTS文字轉語音基礎使用方式

首先安裝edge-tts庫：

pip3 install edge-tts

安裝成功後，直接在終端執行edge-tts命令：

edge-tts

顯示幫助選單即代表安裝成功：

➜  Downloads edge-tts  
usage: edge-tts [-h] [-t TEXT] [-f FILE] [-v VOICE] [-l] [--rate RATE] [--volume VOLUME] [-O OVERLAPPING]  
                [--write-media WRITE_MEDIA] [--write-subtitles WRITE_SUBTITLES] [--proxy PROXY]

隨後輸入命令：

edge-tts --list-voices

該命令可以將Edge瀏覽器中，內建的語言角色列表列出來：

Name: af-ZA-AdriNeural  
Gender: Female  
  
Name: af-ZA-WillemNeural  
Gender: Male  
  
Name: am-ET-AmehaNeural  
Gender: Male  
  
Name: am-ET-MekdesNeural  
Gender: Female  
  
Name: ar-AE-FatimaNeural  
Gender: Female  
  
Name: ar-AE-HamdanNeural  
Gender: Male  
  
Name: ar-BH-AliNeural  
Gender: Male  
  
Name: ar-BH-LailaNeural  
Gender: Female  
  
Name: ar-DZ-AminaNeural  
Gender: Female  
  
Name: ar-DZ-IsmaelNeural  
Gender: Male  
  
Name: ar-EG-SalmaNeural  
Gender: Female  
  
Name: ar-EG-ShakirNeural  
Gender: Male  
  
Name: ar-IQ-BasselNeural  
Gender: Male  
  
Name: ar-IQ-RanaNeural  
Gender: Female  
  
Name: ar-JO-SanaNeural  
Gender: Female  
  
Name: ar-JO-TaimNeural  
Gender: Male  
  
Name: ar-KW-FahedNeural  
Gender: Male  
  
Name: ar-KW-NouraNeural  
Gender: Female  
  
Name: ar-LB-LaylaNeural  
Gender: Female  
  
Name: ar-LB-RamiNeural  
Gender: Male  
  
Name: ar-LY-ImanNeural  
Gender: Female  
  
Name: ar-LY-OmarNeural  
Gender: Male  
  
Name: ar-MA-JamalNeural  
Gender: Male  
  
Name: ar-MA-MounaNeural  
Gender: Female  
  
Name: ar-OM-AbdullahNeural  
Gender: Male  
  
Name: ar-OM-AyshaNeural  
Gender: Female  
  
Name: ar-QA-AmalNeural  
Gender: Female  
  
Name: ar-QA-MoazNeural  
Gender: Male  
  
Name: ar-SA-HamedNeural  
Gender: Male  
  
Name: ar-SA-ZariyahNeural  
Gender: Female  
  
Name: ar-SY-AmanyNeural  
Gender: Female  
  
Name: ar-SY-LaithNeural  
Gender: Male  
  
Name: ar-TN-HediNeural  
Gender: Male  
  
Name: ar-TN-ReemNeural  
Gender: Female  
  
Name: ar-YE-MaryamNeural  
Gender: Female  
  
Name: ar-YE-SalehNeural  
Gender: Male  
  
Name: az-AZ-BabekNeural  
Gender: Male  
  
Name: az-AZ-BanuNeural  
Gender: Female  
  
Name: bg-BG-BorislavNeural  
Gender: Male  
  
Name: bg-BG-KalinaNeural  
Gender: Female  
  
Name: bn-BD-NabanitaNeural  
Gender: Female  
  
Name: bn-BD-PradeepNeural  
Gender: Male  
  
Name: bn-IN-BashkarNeural  
Gender: Male  
  
Name: bn-IN-TanishaaNeural  
Gender: Female  
  
Name: bs-BA-GoranNeural  
Gender: Male  
  
Name: bs-BA-VesnaNeural  
Gender: Female  
  
Name: ca-ES-EnricNeural  
Gender: Male  
  
Name: ca-ES-JoanaNeural  
Gender: Female  
  
Name: cs-CZ-AntoninNeural  
Gender: Male  
  
Name: cs-CZ-VlastaNeural  
Gender: Female  
  
Name: cy-GB-AledNeural  
Gender: Male  
  
Name: cy-GB-NiaNeural  
Gender: Female  
  
Name: da-DK-ChristelNeural  
Gender: Female  
  
Name: da-DK-JeppeNeural  
Gender: Male  
  
Name: de-AT-IngridNeural  
Gender: Female  
  
Name: de-AT-JonasNeural  
Gender: Male  
  
Name: de-CH-JanNeural  
Gender: Male  
  
Name: de-CH-LeniNeural  
Gender: Female  
  
Name: de-DE-AmalaNeural  
Gender: Female  
  
Name: de-DE-ConradNeural  
Gender: Male  
  
Name: de-DE-KatjaNeural  
Gender: Female  
  
Name: de-DE-KillianNeural  
Gender: Male  
  
Name: el-GR-AthinaNeural  
Gender: Female  
  
Name: el-GR-NestorasNeural  
Gender: Male  
  
Name: en-AU-NatashaNeural  
Gender: Female  
  
Name: en-AU-WilliamNeural  
Gender: Male  
  
Name: en-CA-ClaraNeural  
Gender: Female  
  
Name: en-CA-LiamNeural  
Gender: Male  
  
Name: en-GB-LibbyNeural  
Gender: Female  
  
Name: en-GB-MaisieNeural  
Gender: Female  
  
Name: en-GB-RyanNeural  
Gender: Male  
  
Name: en-GB-SoniaNeural  
Gender: Female  
  
Name: en-GB-ThomasNeural  
Gender: Male  
  
Name: en-HK-SamNeural  
Gender: Male  
  
Name: en-HK-YanNeural  
Gender: Female  
  
Name: en-IE-ConnorNeural  
Gender: Male  
  
Name: en-IE-EmilyNeural  
Gender: Female  
  
Name: en-IN-NeerjaExpressiveNeural  
Gender: Female  
  
Name: en-IN-NeerjaNeural  
Gender: Female  
  
Name: en-IN-PrabhatNeural  
Gender: Male  
  
Name: en-KE-AsiliaNeural  
Gender: Female  
  
Name: en-KE-ChilembaNeural  
Gender: Male  
  
Name: en-NG-AbeoNeural  
Gender: Male  
  
Name: en-NG-EzinneNeural  
Gender: Female  
  
Name: en-NZ-MitchellNeural  
Gender: Male  
  
Name: en-NZ-MollyNeural  
Gender: Female  
  
Name: en-PH-JamesNeural  
Gender: Male  
  
Name: en-PH-RosaNeural  
Gender: Female  
  
Name: en-SG-LunaNeural  
Gender: Female  
  
Name: en-SG-WayneNeural  
Gender: Male  
  
Name: en-TZ-ElimuNeural  
Gender: Male  
  
Name: en-TZ-ImaniNeural  
Gender: Female  
  
Name: en-US-AnaNeural  
Gender: Female  
  
Name: en-US-AriaNeural  
Gender: Female  
  
Name: en-US-ChristopherNeural  
Gender: Male  
  
Name: en-US-EricNeural  
Gender: Male  
  
Name: en-US-GuyNeural  
Gender: Male  
  
Name: en-US-JennyNeural  
Gender: Female  
  
Name: en-US-MichelleNeural  
Gender: Female  
  
Name: en-US-RogerNeural  
Gender: Male  
  
Name: en-US-SteffanNeural  
Gender: Male  
  
Name: en-ZA-LeahNeural  
Gender: Female  
  
Name: en-ZA-LukeNeural  
Gender: Male  
  
Name: es-AR-ElenaNeural  
Gender: Female  
  
Name: es-AR-TomasNeural  
Gender: Male  
  
Name: es-BO-MarceloNeural  
Gender: Male  
  
Name: es-BO-SofiaNeural  
Gender: Female  
  
Name: es-CL-CatalinaNeural  
Gender: Female  
  
Name: es-CL-LorenzoNeural  
Gender: Male  
  
Name: es-CO-GonzaloNeural  
Gender: Male  
  
Name: es-CO-SalomeNeural  
Gender: Female  
  
Name: es-CR-JuanNeural  
Gender: Male  
  
Name: es-CR-MariaNeural  
Gender: Female  
  
Name: es-CU-BelkysNeural  
Gender: Female  
  
Name: es-CU-ManuelNeural  
Gender: Male  
  
Name: es-DO-EmilioNeural  
Gender: Male  
  
Name: es-DO-RamonaNeural  
Gender: Female  
  
Name: es-EC-AndreaNeural  
Gender: Female  
  
Name: es-EC-LuisNeural  
Gender: Male  
  
Name: es-ES-AlvaroNeural  
Gender: Male  
  
Name: es-ES-ElviraNeural  
Gender: Female  
  
Name: es-ES-ManuelEsCUNeural  
Gender: Male  
  
Name: es-GQ-JavierNeural  
Gender: Male  
  
Name: es-GQ-TeresaNeural  
Gender: Female  
  
Name: es-GT-AndresNeural  
Gender: Male  
  
Name: es-GT-MartaNeural  
Gender: Female  
  
Name: es-HN-CarlosNeural  
Gender: Male  
  
Name: es-HN-KarlaNeural  
Gender: Female  
  
Name: es-MX-DaliaNeural  
Gender: Female  
  
Name: es-MX-JorgeNeural  
Gender: Male  
  
Name: es-MX-LorenzoEsCLNeural  
Gender: Male  
  
Name: es-NI-FedericoNeural  
Gender: Male  
  
Name: es-NI-YolandaNeural  
Gender: Female  
  
Name: es-PA-MargaritaNeural  
Gender: Female  
  
Name: es-PA-RobertoNeural  
Gender: Male  
  
Name: es-PE-AlexNeural  
Gender: Male  
  
Name: es-PE-CamilaNeural  
Gender: Female  
  
Name: es-PR-KarinaNeural  
Gender: Female  
  
Name: es-PR-VictorNeural  
Gender: Male  
  
Name: es-PY-MarioNeural  
Gender: Male  
  
Name: es-PY-TaniaNeural  
Gender: Female  
  
Name: es-SV-LorenaNeural  
Gender: Female  
  
Name: es-SV-RodrigoNeural  
Gender: Male  
  
Name: es-US-AlonsoNeural  
Gender: Male  
  
Name: es-US-PalomaNeural  
Gender: Female  
  
Name: es-UY-MateoNeural  
Gender: Male  
  
Name: es-UY-ValentinaNeural  
Gender: Female  
  
Name: es-VE-PaolaNeural  
Gender: Female  
  
Name: es-VE-SebastianNeural  
Gender: Male  
  
Name: et-EE-AnuNeural  
Gender: Female  
  
Name: et-EE-KertNeural  
Gender: Male  
  
Name: fa-IR-DilaraNeural  
Gender: Female  
  
Name: fa-IR-FaridNeural  
Gender: Male  
  
Name: fi-FI-HarriNeural  
Gender: Male  
  
Name: fi-FI-NooraNeural  
Gender: Female  
  
Name: fil-PH-AngeloNeural  
Gender: Male  
  
Name: fil-PH-BlessicaNeural  
Gender: Female  
  
Name: fr-BE-CharlineNeural  
Gender: Female  
  
Name: fr-BE-GerardNeural  
Gender: Male  
  
Name: fr-CA-AntoineNeural  
Gender: Male  
  
Name: fr-CA-JeanNeural  
Gender: Male  
  
Name: fr-CA-SylvieNeural  
Gender: Female  
  
Name: fr-CH-ArianeNeural  
Gender: Female  
  
Name: fr-CH-FabriceNeural  
Gender: Male  
  
Name: fr-FR-DeniseNeural  
Gender: Female  
  
Name: fr-FR-EloiseNeural  
Gender: Female  
  
Name: fr-FR-HenriNeural  
Gender: Male  
  
Name: ga-IE-ColmNeural  
Gender: Male  
  
Name: ga-IE-OrlaNeural  
Gender: Female  
  
Name: gl-ES-RoiNeural  
Gender: Male  
  
Name: gl-ES-SabelaNeural  
Gender: Female  
  
Name: gu-IN-DhwaniNeural  
Gender: Female  
  
Name: gu-IN-NiranjanNeural  
Gender: Male  
  
Name: he-IL-AvriNeural  
Gender: Male  
  
Name: he-IL-HilaNeural  
Gender: Female  
  
Name: hi-IN-MadhurNeural  
Gender: Male  
  
Name: hi-IN-SwaraNeural  
Gender: Female  
  
Name: hr-HR-GabrijelaNeural  
Gender: Female  
  
Name: hr-HR-SreckoNeural  
Gender: Male  
  
Name: hu-HU-NoemiNeural  
Gender: Female  
  
Name: hu-HU-TamasNeural  
Gender: Male  
  
Name: id-ID-ArdiNeural  
Gender: Male  
  
Name: id-ID-GadisNeural  
Gender: Female  
  
Name: is-IS-GudrunNeural  
Gender: Female  
  
Name: is-IS-GunnarNeural  
Gender: Male  
  
Name: it-IT-DiegoNeural  
Gender: Male  
  
Name: it-IT-ElsaNeural  
Gender: Female  
  
Name: it-IT-IsabellaNeural  
Gender: Female  
  
Name: ja-JP-KeitaNeural  
Gender: Male  
  
Name: ja-JP-NanamiNeural  
Gender: Female  
  
Name: jv-ID-DimasNeural  
Gender: Male  
  
Name: jv-ID-SitiNeural  
Gender: Female  
  
Name: ka-GE-EkaNeural  
Gender: Female  
  
Name: ka-GE-GiorgiNeural  
Gender: Male  
  
Name: kk-KZ-AigulNeural  
Gender: Female  
  
Name: kk-KZ-DauletNeural  
Gender: Male  
  
Name: km-KH-PisethNeural  
Gender: Male  
  
Name: km-KH-SreymomNeural  
Gender: Female  
  
Name: kn-IN-GaganNeural  
Gender: Male  
  
Name: kn-IN-SapnaNeural  
Gender: Female  
  
Name: ko-KR-InJoonNeural  
Gender: Male  
  
Name: ko-KR-SunHiNeural  
Gender: Female  
  
Name: lo-LA-ChanthavongNeural  
Gender: Male  
  
Name: lo-LA-KeomanyNeural  
Gender: Female  
  
Name: lt-LT-LeonasNeural  
Gender: Male  
  
Name: lt-LT-OnaNeural  
Gender: Female  
  
Name: lv-LV-EveritaNeural  
Gender: Female  
  
Name: lv-LV-NilsNeural  
Gender: Male  
  
Name: mk-MK-AleksandarNeural  
Gender: Male  
  
Name: mk-MK-MarijaNeural  
Gender: Female  
  
Name: ml-IN-MidhunNeural  
Gender: Male  
  
Name: ml-IN-SobhanaNeural  
Gender: Female  
  
Name: mn-MN-BataaNeural  
Gender: Male  
  
Name: mn-MN-YesuiNeural  
Gender: Female  
  
Name: mr-IN-AarohiNeural  
Gender: Female  
  
Name: mr-IN-ManoharNeural  
Gender: Male  
  
Name: ms-MY-OsmanNeural  
Gender: Male  
  
Name: ms-MY-YasminNeural  
Gender: Female  
  
Name: mt-MT-GraceNeural  
Gender: Female  
  
Name: mt-MT-JosephNeural  
Gender: Male  
  
Name: my-MM-NilarNeural  
Gender: Female  
  
Name: my-MM-ThihaNeural  
Gender: Male  
  
Name: nb-NO-FinnNeural  
Gender: Male  
  
Name: nb-NO-PernilleNeural  
Gender: Female  
  
Name: ne-NP-HemkalaNeural  
Gender: Female  
  
Name: ne-NP-SagarNeural  
Gender: Male  
  
Name: nl-BE-ArnaudNeural  
Gender: Male  
  
Name: nl-BE-DenaNeural  
Gender: Female  
  
Name: nl-NL-ColetteNeural  
Gender: Female  
  
Name: nl-NL-FennaNeural  
Gender: Female  
  
Name: nl-NL-MaartenNeural  
Gender: Male  
  
Name: pl-PL-MarekNeural  
Gender: Male  
  
Name: pl-PL-ZofiaNeural  
Gender: Female  
  
Name: ps-AF-GulNawazNeural  
Gender: Male  
  
Name: ps-AF-LatifaNeural  
Gender: Female  
  
Name: pt-BR-AntonioNeural  
Gender: Male  
  
Name: pt-BR-FranciscaNeural  
Gender: Female  
  
Name: pt-PT-DuarteNeural  
Gender: Male  
  
Name: pt-PT-RaquelNeural  
Gender: Female  
  
Name: ro-RO-AlinaNeural  
Gender: Female  
  
Name: ro-RO-EmilNeural  
Gender: Male  
  
Name: ru-RU-DmitryNeural  
Gender: Male  
  
Name: ru-RU-SvetlanaNeural  
Gender: Female  
  
Name: si-LK-SameeraNeural  
Gender: Male  
  
Name: si-LK-ThiliniNeural  
Gender: Female  
  
Name: sk-SK-LukasNeural  
Gender: Male  
  
Name: sk-SK-ViktoriaNeural  
Gender: Female  
  
Name: sl-SI-PetraNeural  
Gender: Female  
  
Name: sl-SI-RokNeural  
Gender: Male  
  
Name: so-SO-MuuseNeural  
Gender: Male  
  
Name: so-SO-UbaxNeural  
Gender: Female  
  
Name: sq-AL-AnilaNeural  
Gender: Female  
  
Name: sq-AL-IlirNeural  
Gender: Male  
  
Name: sr-RS-NicholasNeural  
Gender: Male  
  
Name: sr-RS-SophieNeural  
Gender: Female  
  
Name: su-ID-JajangNeural  
Gender: Male  
  
Name: su-ID-TutiNeural  
Gender: Female  
  
Name: sv-SE-MattiasNeural  
Gender: Male  
  
Name: sv-SE-SofieNeural  
Gender: Female  
  
Name: sw-KE-RafikiNeural  
Gender: Male  
  
Name: sw-KE-ZuriNeural  
Gender: Female  
  
Name: sw-TZ-DaudiNeural  
Gender: Male  
  
Name: sw-TZ-RehemaNeural  
Gender: Female  
  
Name: ta-IN-PallaviNeural  
Gender: Female  
  
Name: ta-IN-ValluvarNeural  
Gender: Male  
  
Name: ta-LK-KumarNeural  
Gender: Male  
  
Name: ta-LK-SaranyaNeural  
Gender: Female  
  
Name: ta-MY-KaniNeural  
Gender: Female  
  
Name: ta-MY-SuryaNeural  
Gender: Male  
  
Name: ta-SG-AnbuNeural  
Gender: Male  
  
Name: ta-SG-VenbaNeural  
Gender: Female  
  
Name: te-IN-MohanNeural  
Gender: Male  
  
Name: te-IN-ShrutiNeural  
Gender: Female  
  
Name: th-TH-NiwatNeural  
Gender: Male  
  
Name: th-TH-PremwadeeNeural  
Gender: Female  
  
Name: tr-TR-AhmetNeural  
Gender: Male  
  
Name: tr-TR-EmelNeural  
Gender: Female  
  
Name: uk-UA-OstapNeural  
Gender: Male  
  
Name: uk-UA-PolinaNeural  
Gender: Female  
  
Name: ur-IN-GulNeural  
Gender: Female  
  
Name: ur-IN-SalmanNeural  
Gender: Male  
  
Name: ur-PK-AsadNeural  
Gender: Male  
  
Name: ur-PK-UzmaNeural  
Gender: Female  
  
Name: uz-UZ-MadinaNeural  
Gender: Female  
  
Name: uz-UZ-SardorNeural  
Gender: Male  
  
Name: vi-VN-HoaiMyNeural  
Gender: Female  
  
Name: vi-VN-NamMinhNeural  
Gender: Male  
  
Name: zh-CN-XiaoxiaoNeural  
Gender: Female  
  
Name: zh-CN-XiaoyiNeural  
Gender: Female  
  
Name: zh-CN-YunjianNeural  
Gender: Male  
  
Name: zh-CN-YunxiNeural  
Gender: Male  
  
Name: zh-CN-YunxiaNeural  
Gender: Male  
  
Name: zh-CN-YunyangNeural  
Gender: Male  
  
Name: zh-CN-liaoning-XiaobeiNeural  
Gender: Female  
  
Name: zh-CN-shaanxi-XiaoniNeural  
Gender: Female  
  
Name: zh-HK-HiuGaaiNeural  
Gender: Female  
  
Name: zh-HK-HiuMaanNeural  
Gender: Female  
  
Name: zh-HK-WanLungNeural  
Gender: Male  
  
Name: zh-TW-HsiaoChenNeural  
Gender: Female  
  
Name: zh-TW-HsiaoYuNeural  
Gender: Female  
  
Name: zh-TW-YunJheNeural  
Gender: Male  
  
Name: zu-ZA-ThandoNeural  
Gender: Female  
  
Name: zu-ZA-ThembaNeural  
Gender: Male

一望而知，幾乎支援所有主流的通用語，Gender欄位為合成語音的性別，Male代表男性，Female代表女性，zh開頭的就是中文語音角色，這裡以微軟的小伊為例子：

edge-tts --voice zh-CN-XiaoyiNeural --text "你好啊，我是智慧語音助手" --write-media hello_in_cn.mp3

該命令含義是透過zh-CN-XiaoyiNeural角色合成語音："你好啊，我是智慧語音助手"的內容，隨後將音訊流寫入hello_in_cn.mp3檔案。

程式返回：

Downloads edge-tts --voice zh-CN-XiaoyiNeural --text "你好啊，我是智慧語音助手" --write-media hello_in_cn.mp3  
WEBVTT  
  
00:00:00.100 --> 00:00:00.525  
你好  
  
00:00:00.525 --> 00:00:00.912  
啊  
  
00:00:01.050 --> 00:00:01.238  
我  
  
00:00:01.238 --> 00:00:01.375  
是  
  
00:00:01.387 --> 00:00:01.700  
智慧  
  
00:00:01.700 --> 00:00:02.050  
語音  
  
00:00:02.062 --> 00:00:02.550  
助手

程式會自動將時間軸和語音文字匹配輸出，如此一來，連字幕檔案也有了，可謂是一舉兩得，一箭雙鵰。

與此同時，我們也可以調整合成語音的語速：

edge-tts --rate=-50% --voice zh-CN-XiaoyiNeural --text "你好啊，我是智慧語音助手" --write-media hello_in_cn.mp3

--rate引數可以透過加號或者減號同步加快或者減慢合成語音的語速。

亦或者，調整合成語音的音量：

edge-tts --volume=-50%  --voice zh-CN-XiaoyiNeural --text "你好啊，我是智慧語音助手" --write-media hello_in_cn.mp3

--volume引數可以調整語音的音量。

遺憾的是，和微軟Azure官方的語音合成庫相比，開源的語音合成庫並不支援基於標記語言 (SSML)的語音調優，比如語調、情緒的調整，但這畢竟是免費的，要求也不能太高了。

Python指令碼語音合成

除了透過命令進行語音合成，edge-tts也支援在Python指令碼，編輯test.py檔案：

import asyncio  
  
import edge_tts  
  
TEXT = "你好喲，我是智慧語音助手，小伊"  
VOICE = "zh-CN-XiaoyiNeural"  
OUTPUT_FILE = "/Users/liuyue/Downloads/test.mp3"  
  
  
async def _main() -> None:  
    communicate = edge_tts.Communicate(TEXT, VOICE)  
    await communicate.save(OUTPUT_FILE)  
  
  
if __name__ == "__main__":  
    asyncio.run(_main())

這裡我們直接透過非同步模式呼叫communicate例項的save方法，就可以併發非同步生成語音合成的音訊檔案，非常方便。

也可以透過語音管理庫來自動尋找我們需要的語言：

import asyncio  
import random  
  
import edge_tts  
from edge_tts import VoicesManager  
  
TEXT = "中文語音測試"  
OUTPUT_FILE ="china.mp3"  
  
  
async def _main() -> None:  
    voices = await VoicesManager.create()  
    voice = voices.find(Gender="Female", Language="zh")  
  
    communicate = edge_tts.Communicate(TEXT, random.choice(voice)["Name"])  
    await communicate.save(OUTPUT_FILE)  
  
  
if __name__ == "__main__":  
    asyncio.run(_main())

這裡透過內建的VoicesManager庫來隨機挑選中文語音角色完成語音合成操作。

除此之外，也可以透過指令碼將語音流和字母同步進行生成：

import asyncio  
  
import edge_tts  
  
TEXT = "這裡是語音流測試"  
VOICE = "zh-CN-XiaoyiNeural"  
OUTPUT_FILE = "test.mp3"  
WEBVTT_FILE = "test.vtt"  
  
  
async def _main() -> None:  
    communicate = edge_tts.Communicate(TEXT, VOICE)  
    submaker = edge_tts.SubMaker()  
    with open(OUTPUT_FILE, "wb") as file:  
        async for chunk in communicate.stream():  
            if chunk["type"] == "audio":  
                file.write(chunk["data"])  
            elif chunk["type"] == "WordBoundary":  
                submaker.create_sub((chunk["offset"], chunk["duration"]), chunk["text"])  
  
    with open(WEBVTT_FILE, "w", encoding="utf-8") as file:  
        file.write(submaker.generate_subs())  
  
  
if __name__ == "__main__":  
    asyncio.run(_main())

這裡非同步呼叫之後，音訊會寫入test.mp3，而字幕檔案則會寫入test.vtt。後續則可以透過ffmpeg將生成的字幕檔案疊加到影片中即可，請參見：基於Python3(Autosub)以及Ffmpeg配合GoogleTranslation(谷歌翻譯)為你的影片實現雙語版字幕(逐字稿)

結語

開源語音合成edge-tts庫可以提高語音合成效率，並且極大地降低了語音合成門檻，為自動化影片剪輯鋪平了道路，未來結合基於Stable-Diffusion演演算法的AI繪圖框架，人工智慧AI一鍵式繪製、配音、上字幕的一條龍服務指日可待。

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