1/19/2008
Copyright 2005 – Tim Hoerning
40
Delay
Output
Input
Delay
+
Delay Mix
Musical Examples:
•And I ran – Flock of Seagulls
•I Still Haven’t Found What I’m Looking For – U2
•Run Like Hell – Pink Floyd
• Flight of the Wounded Bumble Bee – Extreme
•Even Better Than the Real Thing – U2
•Adds a delayed copy of the input signal to the output signal
•By adjusting the delay to match the tempo, a musical effect can achieved where it sounds like more notes are being played
•Often delays have a feedback path (like shown on a later slide for the echo effect).  Typically however, the maximum gain is less than one
•Short Delays (40-120 ms) with no feedback are called “slap-back”
•Delay time is usually adjusted by varying the sampling rate.  This allows for pitch shifting effects