- Delay time in ms (Milli-seconds) = 60000/BPM (Beat Per Minute)
The above equation gives you the timing for every beat (i.e. the delay repeats will be synchronized with your beats).
The same thing in a musicians term will be as under :
- Delay time for crotchet in ms = 60000/BPM (Beat Per Minute)
- Delay time for Quaver in ms = 60000/BPM/2 (Beat Per Minute)
- Delay time for Semi-Quaver in ms = 60000/BPM/4 (Beat Per Minute)
Suppose your song tempo is 120 BPM, then the delay calculation is as follows:
- Crotchet timing in ms (Milli-seconds) = 60000/120 (BPM) = 500 ms
- Value for Quaver is = 500 ms / 2 = 250 ms
- Value for Semi-Quaver is = 500 ms / 4 = 125 ms
For recordists who are not familiar with the musical terms:
- Value of Crotchet is for synchronizing with 1 beat.
- Value of Quaver is for synchronizing with 1/2 beat.
- Value of Semi-Quaver is for synchronizing with 1/4rth beat.
BPM means beats per minute. So a tempo of 120 BPM means that the song is playing 120 beats per minute. Therefore 120 beats / 60 seconds = 2 beats per second. Since 1 second = 1000 Milli-seconds, hence if we divide 1 second (1000 Milli-seconds) by 2 Beats, we get 1/2 seconds ( 500 Milli-seconds) for every beat.
So, now no one should get confused while deciding the delay time in a delay plugin.