Real time Arduino

UPDATE:

Very good description of how clockrate and prescalers work as well as code on giving 77KHz sampling rate!

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1208715493/11

The forum post in full for the tutorial given at the bottom

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1224777046/all

Its possible!!

http://www.youtube.com/watch?v=Y241UMFNxDY

http://www.youtube.com/watch?v=MqJAWH8IP6I&feature=related

Some forum entries:

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1246918085/5

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1288880698/6

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1237148726

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1263493844/5

Which all pretty much lead back to this document:

http://interface.khm.de/index.php/lab/experiments/arduino-realtime-audio-processing/