function floatTo16BitPCM(output,offset,input){
  for (var i = 0; i < input.length; i++,offset+=2){
    var s = Math.max(-1,Math.min(1,input[i]));
    output.setInt16(offset,s < 0 ? s * 0x8000 : s * 0x7FFF,true);
  }
}

function writeString(view,string){
  for (var i = 0; i < string.length; i++){
    view.setUint8(offset + i,string.charCodeAt(i));
  }
}

function encodeWAV(samples){
  var buffer = new ArrayBuffer(44 + samples.length * 2);
  var view = new DataView(buffer);

  /* RIFF identifier */
  writeString(view,'RIFF');
  /* RIFF chunk length */
  view.setUint32(4,36 + samples.length * 2,true);
  /* RIFF type */
  writeString(view,8,'WAVE');
  /* format chunk identifier */
  writeString(view,12,'fmt ');
  /* format chunk length */
  view.setUint32(16,16,true);
  /* sample format (raw) */
  view.setUint16(20,1,true);
  /* channel count */
  view.setUint16(22,2,true);
  /* sample rate */
  view.setUint32(24,sampleRate,true);
  /* byte rate (sample rate * block align) */
  view.setUint32(28,sampleRate * 4,true);
  /* block align (channel count * bytes per sample) */
  view.setUint16(32,4,true);
  /* bits per sample */
  view.setUint16(34,true);
  /* data chunk identifier */
  writeString(view,36,'data');
  /* data chunk length */
  view.setUint32(40,samples.length * 2,true);

  floatTo16BitPCM(view,44,samples);

  return view;
}

嗨,我正在使用此源代码为我的学校考试录制音频.它以44100Hz和16bit记录音频.我想更改录音设置以录制16000Hz和16bit的音频.
我尝试将函数encodeWAV中的44修改为16,但它不起作用.

function encodeWAV(samples){
  var buffer = new ArrayBuffer(44 + samples.length * 2);
  var view = new DataView(buffer)

我也试图改变floadRToBitPCM.我试图将44改为16但它也没有用.

floatTo16BitPCM(view,samples);

你能帮我解决这个问题吗？我不知道如何修改这个源代码.