Linux - 没有硬件声卡，捕获音频播放，并将其记录到文件

python
import os
import signal
import time
import wave
import pyaudio
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
RECORD_SECONDS = 5
OUTPUT_FILE = "output.wav"
def record_audio():
    p = pyaudio.PyAudio()
    stream = p.open(format=FORMAT,
                    channels=CHANNELS,
                    rate=RATE,
                    input=True,
                    frames_per_buffer=CHUNK)
    frames = []
    for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
        data = stream.read(CHUNK)
        frames.append(data)
    stream.stop_stream()
    stream.close()
    p.terminate()
    wf = wave.open(OUTPUT_FILE, 'wb')
    wf.setnchannels(CHANNELS)
    wf.setsampwidth(p.get_sample_size(FORMAT))
    wf.setframerate(RATE)
    wf.writeframes(b''.join(frames))
    wf.close()
if __name__ == "__main__":
    record_audio()