https://github.com/scsd3211/WavCut

WavFileCutWithArgv.py

import sys

import NEWCutWavFile

print('Number of arguments:', len(sys.argv))

print('They are:', str(sys.argv))

print("First is ",str(sys.argv[1]))

OK  = str(sys.argv[1])

if(OK == "OKOK"):

    print("yes")

NEWCutWavFile.SetFileName(OK)

NEWCutWavFile.CutFile()

print("Run Over")

NEWCutWavFile.py

#coding=gbk

import wave

import numpy as np

import pylab as plt

CutTimeDef = 240 #以240ms截断文件

CutFrameNum =0

musicPrimaryName = "庄心妍 - 到不了"

FileName = ".\Music\\"+musicPrimaryName + ".wav"

def SetFileName(WavFileName):

    global  FileName

    print("SetFileName File Name is ", FileName)

    FileName = WavFileName;

def CutFile():

    global  FileName

    print("CutFile File Name is ",FileName)

    # 打开wav文件 ，open返回一个的是一个Wave_read类的实例，通过调用它的方法读取WAV文件的格式和数据。

    f = wave.open(r"" + FileName, "rb")

    # 读取格式信息

    # 一次性返回所有的WAV文件的格式信息，它返回的是一个组元(tuple)：声道数, 量化位数（byte单位）, 采

    # 样频率, 采样点数, 压缩类型, 压缩类型的描述。wave模块只支持非压缩的数据，因此可以忽略最后两个信息

    params = f.getparams()

    nchannels, sampwidth, framerate, nframes = params[:4]

    CutFrameNum = framerate * CutTimeDef / 1000

    print("CutFrameNum=%d" % (CutFrameNum))

    print("nchannels=%d" % (nchannels))

    print("sampwidth=%d" % (sampwidth))

    print("framerate=%d" % (framerate))

    print("nframes=%d" % (nframes))

    str_data = f.readframes(nframes)

    f.close()  # 将波形数据转换成数组

    # 需要根据声道数和量化单位，将读取的二进制数据转换为一个可以计算的数组

    wave_data = np.fromstring(str_data, dtype=np.short)

    wave_data.shape = -1, 2

    wave_data = wave_data.T

    temp_data = wave_data.T

    # StepNum = int(nframes/200)

    StepNum = int(CutFrameNum);

    StepTotalNum = 0;

    haha = 0

    while StepTotalNum < nframes:

        print("Stemp=%d" % (haha))

        FileName = ".\MusicResult\\" + "0_" + "SampleVoice_" + str(haha) + ".wav"

        print(FileName)

        temp_dataTemp = temp_data[StepNum * (haha):StepNum * (haha + 1)]

        haha = haha + 1;

        StepTotalNum = haha * StepNum;

        temp_dataTemp.shape = 1, -1

        temp_dataTemp = temp_dataTemp.astype(np.short)  # 打开WAV文档

        f = wave.open(r"" + FileName, "wb")  #

        # 配置声道数、量化位数和取样频率

        f.setnchannels(nchannels)

        f.setsampwidth(sampwidth)

        f.setframerate(framerate)

        # 将wav_data转换为二进制数据写入文件

        f.writeframes(temp_dataTemp.tostring())

        f.close()