PyAudio stream_callback意外参数

问题描述 投票:1回答:2

我目前正在开发一个小项目,涉及Python中的麦克风输入,我正在使用PyAudio库(绑定PortAudio)。当我尝试第一个“ Wire”示例(阻塞)时,一切都可以正常工作,但是一旦我尝试运行第二个示例“ Wire(回调)”,Python就会说:

Traceback (most recent call last):
  File "main.py", line 24, in <module>
    stream_callback=callback)
TypeError: __init__() got an unexpected keyword argument 'stream_callback'

虽然在绑定中正确定义了它。任何帮助吗?

完整的代码是:

import pyaudio
import time

WIDTH = 2
CHANNELS = 2
RATE = 44100

p = pyaudio.PyAudio()

def callback(in_data, frame_count, time_info, status):
    return (in_data, pyaudio.paContinue)

stream = p.open(format=p.get_format_from_width(WIDTH),
                channels=CHANNELS,
                rate=RATE,
                input=True,
                output=True,
                stream_callback=callback)

stream.start_stream()

while stream.is_active():
    time.sleep(0.1)

stream.stop_stream()
stream.close()

p.terminate()

谢谢!

python portaudio pyaudio
2个回答
1
投票

更新PyAudio和PortAudio解决了该问题。


0
投票

在PyAudio的Mac OSX安装上,有效arg中看起来不像stream_callback:(

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