wave file read & write by Python Built-in function

wave_file_read_write.py

import numpy as np
import wave
import matplotlib.pyplot as plt
import sounddevice as sd

class SoundFile:
    def __init__(self, file_name=None):
        # https://docs.python.org/3.6/library/wave.html
        pass
    
    def write(self, file_name, signal, nchannels=1, sampwidth=2, framerate=44100, duration_sec = 4, comptype="NONE", compname="noncompressed"):
        file = wave.open(file_name, 'wb')
        file.setparams( ( nchannels, sampwidth, framerate, framerate * duration_sec, comptype, compname) )
        file.writeframes( signal )
        file.close()

    def read(self, file_name):
        file = wave.open(file_name, 'rb')
        nchannels, sampwidth, framerate, nframes, comptype, compname = file.getparams()
        duration_sec = nframes / framerate
        signal = file.readframes( nframes )
        signal = np.frombuffer(signal)
        file.close()
        return signal, nchannels, sampwidth, framerate, duration_sec, nframes, comptype, compname
    

refer: https://stackoverflow.com/questions/51079048/scipy-io-wavfile-write-no-sound