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@max-mapper
Created September 26, 2012 04:30
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  • Save max-mapper/3786030 to your computer and use it in GitHub Desktop.
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html5 audio capture
// get latest canary and turn on web audio in chrome://flags
navigator.webkitGetUserMedia({audio:true}, function (stream) {
var context = new webkitAudioContext()
var streamSource = context.createMediaStreamSource(stream)
var sent = false
bufferFiller = context.createJavaScriptNode(2048, 1, 1)
bufferFiller.onaudioprocess = function(e) {
if (sent) return
console.log(JSON.stringify(e.inputBuffer.getChannelData(0)))
sent = true
}
streamSource.connect(bufferFiller)
bufferFiller.connect(context.destination)
}, function(){})
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@devongovett
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Hi, I'm one of the authors of FLAC.js (the FLAC decoder linked to above) from Official.fm Labs. In addition to FLAC we've implemented decoders for ALAC, AAC, and MP3 which you can see at http://labs.official.fm/codecs/. Anyway, we're definitely interested in encoding and will probably tackle it at some point. Because FLAC is a lossless format, it is one of the simpler codecs to encode (and decode), so when we tackle encoding it will probably be one of the first codecs we implement. If anyone wants to help out in that effort, it would be greatly appreciated! All of our code is open source at https://github.com/ofmlabs. I think this could open up some interesting possibilities. Cheers!

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