i just want find out when there is no sound in the mediaStream , can u check my code and tell me if it's ok or not

[xuedygaga]

i just want find out when there is no sound in this mediaStream:

var recorder = RecordRTC(mediaStream, {
    type: 'audio',
    mineType: "audio/wav",
    recorderType: StereoAudioRecorder
});

function postFiles() {
    var blob = recorder.getBlob();
    console.log("blob", blob); //if the blob.size is small , i can believe there is no sound in this blob
}

function getBlob() {
    if (recorder) {
        recorder.startRecording();

        function stopRecord() {
            recorder.stopRecording(postFiles);
        }
        window.setTimeout(stopRecord, 1000); //get blob per a second
    }
}
window.setInterval(getBlob, 1500);

[muaz-khan]

Please try this instead:

• https://github.com/muaz-khan/RecordRTC/blob/master/simple-demos/ondataavailable-StereoAudioRecorder.html

If audio tracks are still empty then please make sure to pass custom values for sampleRate (and maybe bufferSize as well).

If you want a similar behavior as your code snippet, then please try this library instead:

• https://github.com/streamproc/MediaStreamRecorder