无法使用 pyaudio 录制音频

Question

这是我的代码。运行这个录制文件成功创建。但我听不到文件中的任何数据。我仍然对麦克风等输入设备的通道选择感到困惑。

import pyaudio
import wave

chunk = 1024  # Record in chunks of 1024 samples
sample_format = pyaudio.paInt16  # 16 bits per sample
channels = 2
fs = 44100  # Record at 44100 samples per second
seconds = 3
filename = "output.wav"

p = pyaudio.PyAudio()  # Create an interface to PortAudio

print('Recording')

stream =p.open(format=sample_format,channels=channels,rate=fs,frames_per_buffer=chunk,input=True)

frames = []  # Initialize array to store frames

# Store data in chunks for 3 seconds
for i in range(0,int(fs/chunk * seconds)):
    data = stream.read(chunk)
    frames.append(data)

# Stop and close the stream 
stream.stop_stream()
stream.close()
# Terminate the PortAudio interface
p.terminate()

print('Finished recording')

# Save the recorded data as a WAV file
wf = wave.open(filename, 'wb')
wf.setnchannels(channels)
wf.setsampwidth(p.get_sample_size(sample_format))
wf.setframerate(fs)
wf.writeframes(b''.join(frames))
wf.close()