python wav 录音

import pyaudio
import wave
from tqdm import tqdm
 
def record_audio(wave_out_path,record_second):
    CHUNK = 1024
    FORMAT = pyaudio.paInt16
    CHANNELS = 2
    RATE = 44100
 
    p = pyaudio.PyAudio()
 
    stream = p.open(format=FORMAT,
                    channels=CHANNELS,
                    rate=RATE,
                    input=True,
                    frames_per_buffer=CHUNK)
 
 
    wf = wave.open(wave_out_path, 'wb')
    wf.setnchannels(CHANNELS)
    wf.setsampwidth(p.get_sample_size(FORMAT))
    wf.setframerate(RATE)
 
 
    print("* recording")
 
    for i in tqdm(range(0, int(RATE / CHUNK * record_second))):
        data = stream.read(CHUNK)
        wf.writeframes(data)
 
    print("* done recording")
 
    stream.stop_stream()
    stream.close()
 
    p.terminate()
 
    wf.close()
 
record_audio("output.wav",record_second=4)