How do I Record audio from a phone Mic, and save recording?

I don't understand the UserMedia object..

Im trying to create a function whereby I can record audio and save it on a mobile device, or even send it to a cloud service (e.g. soundcloud)

1. How much of this is this possible?

2. Am I using the UserMedia correctly if I want to record audio

3. How?

Thanks a lot for reading

Take a look at the Voice Recorder example.