Recording from a Microphone in the browser using the Web Audio API

I have posted a code example that shows how to record audio from a microphone in a web browser using the Web Audio API.

Take a look a the demo and the code HERE

It turns out that the API does not support recording directly so you have to add consecutive samples of audio data to your own recording buffer. You need to grow the size of the buffer whenever you add a new sample. Once you have your recording you can use it as the source of a BufferSourceNode and play it back.