MediaRecorder:从多个麦克风录制 [英] MediaRecorder: Record from Multiple Microphones

问题描述

我目前正在使用 MediaRecorder API来录制音频在应用程序内部.

I am currently using the MediaRecorder API to record audio inside an application.

是否可以通过多个输入设备(例如，两个麦克风)进行录音?

Is there a way to record from multiple input devices, say, two microphones?

我可以使用mediaDevices.enumerateDevices()获取设备列表，如这里.

I can get a list of devices using mediaDevices.enumerateDevices(), as demonstrated here.

理想情况下，如果可能的话，我想选择两个或多个要记录的设备.

Ideally, if possible, I would like to select two or more devices to be recorded.

这可能吗?

推荐答案

此功能会将您的曲目合并为一个:

this function will merge your tracks into one:

function mix(audioContext, streams) {
  const dest = audioContext.createMediaStreamDestination();
  streams.forEach(stream => {
    const source = audioContext.createMediaStreamSource(stream);
    source.connect(dest);
  });
  return dest.stream.getTracks()[0];
}

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