小编典典

Python语音识别错误-无效的频道数

python

作为项目的一部分,我正在python上运行语音识别代码。当我将语音识别代码放在类似这样的函数中时,我面临一个非常奇怪的问题:

def loop():
    r=sr.Recognizer()
    with sr.Microphone(device_index=2) as source:
            print("say something")
            audio = r.listen(source)
            try:
                    print("you said "+r.recognize_google(audio))
            except sr.UnknownValueError:
                    print("Could not understand")
            except sr.RequestError as e:
                    print("errpr: {0}".format(e))

它给了我以下错误:

带有sr.Microphone(device_index = 2)作为源:文件“ /usr/local/lib/python3.5/dist-
packages/speech_recognition/ init .py”,第141行,在 输入 input =
True中,#stream是一个输入流文件“ /usr/local/lib/python3.5/dist-
packages/pyaudio.py”,第750行,在开放流中= Stream(self, args, kwargs)文件“ / usr /
local / lib / python3.5 / dist-packages / pyaudio.py“,第441行,在
初始化
self._stream = pa.open(
* arguments)OSError:[Errno -9998]无效的通道数

但是如果我在函数外部运行相同的代码行,例如不在函数内部def loop():运行,

我该怎么办?我的python版本是3.5.4


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2021-01-20

共1个答案

小编典典

尝试这种方式:

r = sr.Recognizer()
m = sr.Microphone(device_index=2)

def loop():
    with m as source:
        print("say something")
        audio = r.listen(source)
        try:
            print("you said "+r.recognize_google(audio))
        except sr.UnknownValueError:
            print("Could not understand")
        except sr.RequestError as e:
            print("errpr: {0}".format(e))

loop()

不要创建多个Microphone()实例。

2021-01-20