Silence detection in audio (onspeaking and onsilence events)

[borabilgin]

First of all, thanks for providing this library - it is a lifesaver!

The RTCMultiConnection library has silence detection, which I believe would be useful in MediaStreamRecorder. Instead of saving blobs on an interval (such as every 5 seconds), we can upload the blobs when the user stops speaking. Is this feature in the roadmap for this library (or is it easy to integrate)?

Thanks!

[muaz-khan]

Here is how to get ondataavailable event fired only on a button click:

mediaRecorder.start(999999999999999); // longest possible interval

document.getElementById('stop-recording').onclick = function() {
    mediaRecorder.stop(); // stop on button click
};

E.g. http://stackoverflow.com/a/32264996/552182

BTW, silence detection can be added as an optional feature. E.g.

mediaRecorder.recorderType = StereoAudioRecorder; // force WebAudio for Edge/Firefox/Chrome
mediaRecorder.skipSilentAudioBuffers = true;

// or
mediaRecorder.dontRecordOnSilence = true;

[borabilgin]

What I meant was to make the blobs available when silence is detected - but thanks for the reply. I'll look into the dontRecordOnSilence option and modify the code accordingly.

[muaz-khan]

Silence detection feature is not added yet. BTW, yep, we can fire ondataavailable on detecting silence.

[Premier]

Any updates about silence detector?

[ItsWendell]

How would we go about using ondataavailable to detect silences?

[adeel-raza]

Any hints how to achieve this?

[fookingthg]

you can use the onmute event to detect silence. But this will work only if it is completely silent and no data is available from the recording devices. stream.getVideoTracks()[0].onmute = function() { //TODO : Do something };