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?
最佳答案 您是否尝试将exception_on_overflow设置为False?从Pyaudio文档:
read(num_frames, exception_on_overflow=True)
从流中读取样本.使用非阻塞模式时请勿呼叫.
参数:
num_frames – 要读取的帧数.
exception_on_overflow – 指定是否应在输入缓冲区溢出时抛出(或无提示忽略)IOError异常.默认为True.
引发IOError:
如果stream不是输入流或者读取操作不成功.
返回类型:
串