How to Call SPEEX Audio Decode/Encode in HTML5 / JavaScript (Without Flash)

Question

I\'m working on a project that requires audio data to be streamed via HTTP to/from server.

We need to compress the audio data using SPEEX.

In Flash, we can u

Answer 1

I have posted an answer on How can I play .spx file by html5 ?.

With speex.js, now I can play speech of word for my online dictionary project.

Answer 2

I recently implemented a successful HTML5/VOIP client using the following JS port of Speex, truly awesome stuff:

https://github.com/jpemartins/speex.js

For now you'll need to either wait for MediaStreamRecorder or jump the gun like I did, and make use of this:

https://github.com/jwagener/recorder.js/

As for how you piece the whole lot together into a slick system, your call :)

Hope i've helped

Answer 3

I am working on a project called AudioRecorder that exactly fits your needs. You can find it here. https://github.com/dbieber/audiorecorder.

This builds upon the already mentioned emscripten compiled speex codec: jpemartins/speex.js.

If you already have the audio and just want to encode it, call Codec.encode(samples). You can also use AudioRecorder to record the audio -- there's an example on Github here: http://dbieber.github.io/audiorecorder/examples/recorder.html

The implementation currently assumes 1-channel audio and if you want two channel you can just encode or decode twice.

Answer 4

I had a similar requirement and ended up writing a Java applet that used JSpeex and called it from JS.