[MPlayer-users] Can I play audio from microphone input with mplayer?

[James Board]

> If your mixer is correctly set up, you don't need to. It will work out
> of the box with jack. If the mic is connected to another sound
> card than the one used by jack, you need to
> set up a bridge. It is different  possibilities (.asoundrc, zita bridges).
 
What's 'jack'?  Can you give me an example command line?

How would I setup my 'mixer'?  What mixer are you talking about?
I ran alsamixer, but there doesn't seem to be much to do.

Thanks for your reply.