The use of a Web Worker for background processing plus all of the typed array stuff for creating a RIFF blob out of PCM data is actually pretty cool, and something that most JS developers probably haven't been exposed to much.
It's sad when you end up having to put messages like this in your app:
"Custom voicemails are not currently supported in Chrome on OSX. Please use another browser to record your custom voicemail."
Worth noting that, besides exporting to a WAV and adding the object URL to an <audio> tag, recorder.js will also (using the getBuffer method) let you use the buffers directly as an actual Web Audio API source. This lets you do further processing during playback on the recorded audio.
I'm hoping by the time that I finish my silly little app (a loop box that you can add effects to, Reggie Watts[2]-style, using recorder.js and the wonderful effects library Tuna[3]), web audio recording in Chrome will be enabled out of the box on stable.
[1] https://github.com/thomasboyt/web-audio-recording-demo
That's a worrying security hole, if you can record without getting any permission from the user -- sites could eavesdrop on visitors and upload the audio to who-knows-where (knowingly or not, via an XSS hole...).
I believe Flash needs to prompt you to access your microphone and webcam; browsers should too (even more so, because someone who has disabled all plugins may feel safer...).
Permissions for privacy invading features should IMO have a unified interface like they have in the OS like Mountain Lion.
Seeing many html5+js+css > Flash posts, and it's so nice when everyone is pointing out how awesome it is, until you try to do something useful like dubjoy. Where it turned out for you guys that flash is the only logical way to do it. I hope alternatives will get better soon, until then, we're stuck.
They switched to HTML5 because Flash no longer worked in Chrome, it's explained in the article. That said, this "HTML5" solution looks very much like a WebKit-only solution instead, so meh.
P.S. Good luck with DubJoy ;)
