据我所知 pyalsaaudio documentation 你似乎是根据他们的 example for recording audio.

我能从你的程序中看到的唯一问题可能是安装过程?你是用PIP还是手动安装的?(我猜是pip;也许你缺少了正确的alsa依赖项?)。如果您想继续使用此库,可能需要尝试手动安装。

PyAudio

根据我的经验,大多数人倾向于使用 皮亚迪 用于实时音频IO。它建在 portaudio 它在Linux构建过程中使用ALSA。因为它被广泛使用,你会发现很多例子,比如:

• Real-time Blocking mode audio IO
• Real-time Callback mode audio IO
• Playing .wav files
• 和 here's a website 其他50个例子 皮亚迪 东西。。。

为了让您开始,这里有一个从麦克风录制音频的示例(阻塞,即程序等待音频被录制后再发生其他事情),并用pyaudio将数据写入python中的.wav文件。

import pyaudio # Soundcard audio I/O access library
import wave # Python 3 module for reading / writing simple .wav files

# Setup channel info
FORMAT = pyaudio.paInt16 # data type formate
CHANNELS = 2 # Adjust to your number of channels
RATE = 44100 # Sample Rate
CHUNK = 1024 # Block Size
RECORD_SECONDS = 5 # Record time
WAVE_OUTPUT_FILENAME = "file.wav"

# Startup pyaudio instance
audio = pyaudio.PyAudio()

# start Recording
stream = audio.open(format=FORMAT, channels=CHANNELS,
                rate=RATE, input=True,
                frames_per_buffer=CHUNK)
print "recording..."
frames = []

# Record for RECORD_SECONDS
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
    data = stream.read(CHUNK)
    frames.append(data)
print "finished recording"


# Stop Recording
stream.stop_stream()
stream.close()
audio.terminate()

# Write your new .wav file with built in Python 3 Wave module
waveFile = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
waveFile.setnchannels(CHANNELS)
waveFile.setsampwidth(audio.get_sample_size(FORMAT))
waveFile.setframerate(RATE)
waveFile.writeframes(b''.join(frames))
waveFile.close()

如果安装时遇到问题,下面是Ubuntu 16.04 LTS(最初 posted here )

sudo apt-get install libasound-dev portaudio19-dev libportaudio2 libportaudiocpp0
sudo apt-get install ffmpeg libav-tools
sudo pip install pyaudio

希望这有帮助!

额外的: 如果你觉得有 plenty examples 上 portaudio website 浅谈如何在C/C++中启动实时音频IO