IOError: [Errno 输入溢出] -9981

我试图在 Raspberry Pi B 型板上的 Raspbian 上执行 PyAudio python 捕获程序，但出现错误：

Traceback (most recent call last):
  File "/home/pi/pythonsound/record.py", line 35, 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

还有一些其他建议，但效果不佳 这是我尝试过的， 这是代码

import pyaudio
import wave
import sys
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()

这是我的 USB 声卡设备信息，

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

你能指导我解决这个问题吗？

在阅读了不同用户的经验和他们的修正后，只需更改参数值即可。

正如上述专家所描述的，实际原因

IOError: [Errno Input overflowed] -9981

所以我也开始增加 CHUNK 的值，最后我也成功克服了这个错误。 现在我修正后的编码是：

import pyaudio, wave, time, sys
from datetime import datetime

CHUNK = 8192
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
RECORD_SECONDS = 5

current_time = str(datetime.now())  #"Date/Time for File Name"
current_time = "_".join(current_time.split()).replace(":","-")
current_time = current_time[:-7]
WAVE_OUTPUT_FILENAME = 'Audio_'+current_time+'.wav'

p = pyaudio.PyAudio()

stream = p.open(format=FORMAT, channels = CHANNELS, rate = RATE, input = True, input_device_index = 0, frames_per_buffer = CHUNK)

print("* recording")

frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
    print i
    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()