Streaming waveforms

That is very interesting! I remember I looked at the code for a long time and didn't quite understand this aspect, but since it's also not documented how exactly that event is thrown, I assumed it to be correct.

I will try that with the Flash RAM when I have time and let you know. It should improve things even more there because of the smaller buffer sizes.

By the way, it seems a bit clumsy that we need an if-branch to evaluate which buffer to use. We could store references to the buffers in a 2-element array and then reduce that function to:

w.on("buffer", function(buf) {
    buffers[1 - w.currentBuffer].set( /* new data */ );
});

but it would be even cooler if the native Waveform object had built-in properties that point to the current and the other buffer.