disable macosx startup sound
schöne spielerei in flash
The Freesound Project is a collaborative database of Creative Commons licensed sounds. Freesound focusses only on sound, not songs
The theory behind binaural beats is that if you apply slightly different frequency sine waves to each ear, a beating affect is created in the brain itself, due to the brain's internal wiring.
Soundflower is a MacOS X (10.2 and later) system extension that allows applications to pass audio to other applications.