Mixing Audio, 2nd Edition

Appendix CDelay Time Chart

Delay times can be easily calculated. For time signatures involving quarter-note beats (4/4, 3/4, etc.), a quarter-note delay in seconds is calculated using 60 ÷ BPM. For example, at 120 BPM, a quarter-note delay would be 60/120, or 0.5 seconds, which is 500 ms. Milliseconds are far more common in delay units: using the calculation 60000 ÷ BPM would give the result in milliseconds. A half-note delay is twice as long as a quarter-note delay for the same BPM, and an eighth-note delay is half the quarter-note delay. For example, a half-note delay at 120 BPM would be 1000 ms, and an eighth-note delay would be 250 ms.

Simple note values

The following table includes delay times for various simple note values at 80–190 BPM. ...