Message 15/17
Date: 18-Dec-02 @ 02:28 PM -
RE: Reverb pre delay
It's just a proportion. Pay attention to the units for eatch quantity, and this'll make more sense:
bpm = beats per minute
1 beat = 1 quarter note (assuming 4/4)
130 beats per minute = 120beats/60sec
Invert the fraction: 60sec/120beats
Reduce (divide by 60): 1sec/2beats
solve for one beat: .5sec/beat
So there is .5 seconds PER BEAT. A quarter-note delay at 120 BPM is .5 seconds. A sixteenth note delay is then 5/4 sec or .125 seconds.
The generic formula for finding quarter-note delays is 1/(bpm * 60)