[英]PyAudio recording/capturing and stop/terminate in Python on Raspi
我不是Python的专家,试图通过USB音频设备捕获/记录音频。 在命令终端上工作正常。 但是我想制作一个只录制音频并在需要时停止的程序。
我听说过ab8 Pyaudio库,该库具有某些API可以执行此工作(例如pyaudio.PyAudio(),pyaudio.Pyaudio.open(),pyaudio.stream,pyaudio.stream.close,pyaudio.PyAudio.terminate().... 。
有人可以帮助制作一个简单的Python录音程序吗? 谢谢。
我只是在命令前面添加相关注释,如果您想清除更多的内容,请告诉我
import pyaudio, wave, sys
CHUNK = 8192
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
RECORD_SECONDS = 10
WAVE_OUTPUT_FILENAME = 'Audio_.wav'
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels = CHANNELS,
rate = RATE,
input = True,
input_device_index = 0,
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() # "Stop Audio Recording
stream.close() # "Close Audio Recording
p.terminate() # "Audio System Close
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()
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