Question

我正在使用Python中的speech_recognition模块。在使用adjust_for_ambient_noise()录制音频之前，我使用了listen()。问题是有时它似乎只是试图永久地记录，然后在它最终完成时吃了带宽，将记录下来的大音频文件传输给Google进行转录。

我是否可以指定最长录制时间为5秒？

设置timeout=5只是等待检测到开始音频信号的时间。

import speech_recognition


def listen(rec, mic):
  with mic as source:
    print('adjusting mic for ambient noise..')
    rec.adjust_for_ambient_noise(source)
    print('listening..')
    # timeout is not max record time but max time it will wait for audio to start
    audio = rec.listen(source, timeout=5)
    try:
      print('sending audio to google..')
      outputString = rec.recognize_google(audio).lower()
    except speech_recognition.UnknownValueError:
      print('google was not able to transcribe the audio')
      return None
    except speech_recognition.RequestError:
      print('google API unreachable')
      return None
    except speech_recognition.WaitTimeoutError:
      print('timout expired while waiting for audio command to start')
      return None
    print('transcription \'' + outputString + '\'')
    return outputString


rec = sr.Recognizer()
mic = sr.Microphone()
outputString = listen(rec, mic)

Answer 1

您可以使用(source, phrase_time_limit=5)代替(source, timeout=5)

是否可以使用Python中的speech_recognition模块设置语音录制时间的最大持续时间？

1 个答案: