PyAudio输入溢出-9981 - 没有解决方案正常工作

Question

请不要将此问题报告为重复,因为现有的解决方案都没有为我工作,我对它们进行了全部测试

所以,我试图在我的RaspberryPi模型B板上运行PyAudio示例录制程序,这是我得到的错误,

Traceback (most recent call last):
  File "/home/pi/pyaudio/test/testing.py", line 23, in <module>
    data = stream.read(chunk)
  File "/usr/local/lib/python2.7/dist-packages/pyaudio.py", line 605, in read
    return pa.read_stream(self._stream, num_frames)
IOError: [Errno Input overflowed] -9981

有一些解决方案可以解决许多用户的问题,在我看来,这是不正确的.

这是我试过的,

首先,这是代码,

"""PyAudio example: Record a few seconds of audio and save to a WAVE file."""

import pyaudio
import wave

CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
RECORD_SECONDS = 5
WAVE_OUTPUT_FILENAME = "output.wav"

p = pyaudio.PyAudio()

stream = p.open(format=FORMAT,
            channels=CHANNELS,
            rate=RATE,
            input=True,
            frames_per_buffer=CHUNK)

print("* recording")

frames = []

for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
   data = stream.read(CHUNK)
   frames.append(data)

print("* done recording")

stream.stop_stream()
stream.close()
p.terminate()

wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()

如果支持或不支持当前配置,我也尝试过,

import pyaudio
p = pyaudio.PyAudio()
if p.is_format_supported(48000.0, 
    input_device=1,
    input_channels=1,
    input_format=pyaudio.paInt16):
    print 'True!'

44,000和44,100都是支持,但我仍然一次又一次地得到同样的错误.

这是我的USB音频卡设备信息,

p.get_device_info_by_index(1)

{'defaultSampleRate': 44100.0, 
'defaultLowOutputLatency': 0.011609977324263039, 
'defaultLowInputLatency': 0.011609977324263039, 
'maxInputChannels': 1L, 
'structVersion': 2L, 
'hostApi': 0L, 
'index': 1, 
'defaultHighOutputLatency': 0.046439909297052155, 
'maxOutputChannels': 2L, 
'name': u'Generic USB Audio Device: USB Audio (hw:1,0)', 
'defaultHighInputLatency': 0.046439909297052155}

有没有人知道为什么我仍然会收到错误？

Answer 1

将块参数更改为8192而不是1024.为我工作.reference:IOError:[Errno Input overflowed] -9981