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65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
"""
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pytts voice service (offline)
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"""
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import os
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import sys
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import time
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import pyttsx3
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from bridge.reply import Reply, ReplyType
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from common.log import logger
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from common.tmp_dir import TmpDir
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from voice.voice import Voice
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class PyttsVoice(Voice):
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engine = pyttsx3.init()
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def __init__(self):
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# 语速
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self.engine.setProperty("rate", 125)
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# 音量
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self.engine.setProperty("volume", 1.0)
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if sys.platform == "win32":
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for voice in self.engine.getProperty("voices"):
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if "Chinese" in voice.name:
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self.engine.setProperty("voice", voice.id)
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else:
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self.engine.setProperty("voice", "zh")
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# If the problem of espeak is fixed, using runAndWait() and remove this startLoop()
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# TODO: check if this is work on win32
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self.engine.startLoop(useDriverLoop=False)
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def textToVoice(self, text):
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try:
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# Avoid the same filename under multithreading
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wavFileName = "reply-" + str(int(time.time())) + "-" + str(hash(text) & 0x7FFFFFFF) + ".wav"
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wavFile = TmpDir().path() + wavFileName
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logger.info("[Pytts] textToVoice text={} voice file name={}".format(text, wavFile))
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self.engine.save_to_file(text, wavFile)
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if sys.platform == "win32":
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self.engine.runAndWait()
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else:
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# In ubuntu, runAndWait do not really wait until the file created.
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# It will return once the task queue is empty, but the task is still running in coroutine.
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# And if you call runAndWait() and time.sleep() twice, it will stuck, so do not use this.
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# If you want to fix this, add self._proxy.setBusy(True) in line 127 in espeak.py, at the beginning of the function save_to_file.
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# self.engine.runAndWait()
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# Before espeak fix this problem, we iterate the generator and control the waiting by ourself.
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# But this is not the canonical way to use it, for example if the file already exists it also cannot wait.
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self.engine.iterate()
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while self.engine.isBusy() or wavFileName not in os.listdir(TmpDir().path()):
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time.sleep(0.1)
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reply = Reply(ReplyType.VOICE, wavFile)
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except Exception as e:
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reply = Reply(ReplyType.ERROR, str(e))
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finally:
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return reply
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