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# TTS 赋予数字人真实的语音交互能力
Edge-TTS是一个Python库，它使用微软的Azure Cognitive Services来实现文本到语音转换（TTS）。
该库提供了一个简单的API，可以将文本转换为语音，并且支持多种语言和声音。要使用Edge-TTS库，首先需要安装上Edge-TTS库，安装直接使用pip 进行安装即可。
```bash
pip install -U edge-tts
```
> 如果想更细究使用方式，可参考[https://github.com/rany2/edge-tts](https://github.com/rany2/edge-tts)
根据源代码，我编写了一个 `EdgeTTS` 的类，能够更好的使用，并且增加了保存字幕文件的功能，能增加体验感
```python
class EdgeTTS:
def __init__(self, list_voices = False, proxy = None) -> None:
voices = list_voices_fn(proxy=proxy)
self.SUPPORTED_VOICE = [item['ShortName'] for item in voices]
self.SUPPORTED_VOICE.sort(reverse=True)
if list_voices:
print(", ".join(self.SUPPORTED_VOICE))
def preprocess(self, rate, volume, pitch):
if rate >= 0:
rate = f'+{rate}%'
else:
rate = f'{rate}%'
if pitch >= 0:
pitch = f'+{pitch}Hz'
else:
pitch = f'{pitch}Hz'
volume = 100 - volume
volume = f'-{volume}%'
return rate, volume, pitch
def predict(self,TEXT, VOICE, RATE, VOLUME, PITCH, OUTPUT_FILE='result.wav', OUTPUT_SUBS='result.vtt', words_in_cue = 8):
async def amain() -> None:
"""Main function"""
rate, volume, pitch = self.preprocess(rate = RATE, volume = VOLUME, pitch = PITCH)
communicate = Communicate(TEXT, VOICE, rate = rate, volume = volume, pitch = pitch)
subs: SubMaker = SubMaker()
sub_file: Union[TextIOWrapper, TextIO] = (
open(OUTPUT_SUBS, "w", encoding="utf-8")
)
async for chunk in communicate.stream():
if chunk["type"] == "audio":
# audio_file.write(chunk["data"])
pass
elif chunk["type"] == "WordBoundary":
# print((chunk["offset"], chunk["duration"]), chunk["text"])
subs.create_sub((chunk["offset"], chunk["duration"]), chunk["text"])
sub_file.write(subs.generate_subs(words_in_cue))
await communicate.save(OUTPUT_FILE)
# loop = asyncio.get_event_loop_policy().get_event_loop()
# try:
# loop.run_until_complete(amain())
# finally:
# loop.close()
asyncio.run(amain())
with open(OUTPUT_SUBS, 'r', encoding='utf-8') as file:
vtt_lines = file.readlines()
# 去掉每一行文字中的空格
vtt_lines_without_spaces = [line.replace(" ", "") if "-->" not in line else line for line in vtt_lines]
# print(vtt_lines_without_spaces)
with open(OUTPUT_SUBS, 'w', encoding='utf-8') as output_file:
output_file.writelines(vtt_lines_without_spaces)
return OUTPUT_FILE, OUTPUT_SUBS
```
同时在`src`文件夹下，写了一个简易的`WebUI`
```bash
python app.py
```
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