PyAudio Input Overflowed -9981 - No solution working
请不要将此问题报告为重复问题,因为没有任何可用的解决方案适合我,我对它们都进行了测试
所以,
我正在尝试在我的 RaspberryPi 模型 B 板上运行 PyAudio 示例录音程序,
这是我得到的错误,
1 2 3 4 5 6 | 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 |
已经有一些解决方案可以解决许多用户的问题,但就我而言,这不是真的。
这是我尝试过的,
首先,这是代码,
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | """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() |
我也试过当前配置是否支持,
1 2 3 4 5 6 7 | 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 都支持,但我仍然一次又一次地遇到相同的错误。
这是我的 USB 声卡设备信息,
1 2 3 4 5 6 7 8 9 10 11 12 13 | 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} |
有人知道为什么我仍然收到错误吗?
将您的块参数更改为 8192 而不是 1024。为我工作。
参考:IOError:[Errno 输入溢出] -9981
您是否尝试将 exception_on_overflow 设置为 False?来自 Pyaudio 文档:
1 | read(num_frames, exception_on_overflow=True) |
从流中读取样本。使用非阻塞模式时不要调用。
参数:
num_frames a€"要读取的帧数。
exception_on_overflow a€" 指定是否应在输入缓冲区溢出时抛出(或静默忽略)IOError 异常。默认为真。
引发 IOError:
如果流不是输入流或读取操作不成功。
返回类型:
字符串
详细说明@Sidd Rajput 的答案,因为我没有明确说明这一点,
如果您正在导入,在脚本/项目中设置它是不够的 - pyaudio.py 本身需要修改
1 | def read(self, num_frames, exception_on_overflow=False): |
^pyaudio.py v0.2.8 中的第 589/590 行:
我只是增加了块数,它似乎有效!
这是我的代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | import pyaudio import wave CHUNK = 44100 #just a big number FORMAT = pyaudio.paInt16 CHANNELS = 1 #i found that my mic has 1 channel RATE = 44100 RECORD_SECONDS = 5 WAVE_OUTPUT_FILENAME ="output.wav" p = pyaudio.PyAudio() stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input_device_index=3, #found that also 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() |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | # importing modules for sound handling # importing modules for sound handling from sys import byteorder from array import array from struct import pack import pyaudio import wave def audioeffect(): CHUNK = 16 # played with, this can be 2048 1024, 512, 256 etc FORMAT = pyaudio.paInt16 CHANNELS = 1 RATE = 48000 p = pyaudio.PyAudio() stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, output=True, frames_per_buffer=CHUNK) r = array('h') # define r snd_data = array('h', stream.read(CHUNK)) # read sounddata from input r.extend(snd_data) stream.stop_stream() stream.close() p.terminate() N = 1 SumOfSquars = 0 for i in snd_data: # determing the value for tel of N = N +1 # adding all quadrates for i in range(0, N-1): SumOfSquars = snd_data[i]**2 Rms_Value = np.sqrt(SumOfSquars / N) #print("Rms_Value is :", Rms_Value) return int(Rms_Value) |