网络音频Api记录音频节点

Question

我能以某种方式记录并输出到带有trackPosition偏移量的WAV。它在浏览器中正常播放时工作正常我只是想输出到WAV文件。

for (var i = 0; i <= loop; ++i) { 
    node = that.context.createBufferSource(); 
    that.nodes.push(node); 
    node.buffer = clip.get('buffer'); 
    node.connect(gainNode); 

    // clip offset and duration times 
    if (loop > 0) { 
     if (i === 0) {   // first subclip 
      offset = startTime; 
      duration = duration - offset; 
     } else if (i === loop) { // last subclip 
      offset = 0; 
      duration = endTime; 
     } else { 
      offset = 0; 
      duration = clip.get('buffer').duration; 
     } 
    } else { // loop === 0 
     offset = startTime; 
     if (inClipStart) 
      duration = endTime - startTime; 
     else 
      duration = clip.clipLength(); 
    } 

    // sets the clip's playback start time 
    node.start(
     currentTime + trackPosition - cursor, 
     offset, 
     duration 
    ); 



    trackPosition += duration; 
} 

Answer 1

退房https://github.com/mattdiamond/Recorderjs - 它让你记录/保存您的网络音频应用程序的输出作为一个.wav，这听起来像是你在找什么！