Audio delay calculator

Give the tempo and the time signature

Express the length of the delay as fractions of a bar

Musical tempo

Beats per minute
129.9BPM
Beats per bar
4 beats
Delay fraction
13/16 bar

Converted to seconds

Length of 1 beat
0.462 sec
2.165 Hz
Length of 1 bar
1.848 sec
0.541 Hz
Delay length
1.501 sec
0.666 Hz

Repeated delays

A repeated delay syncs with the beat after 16 delays = 13 bars

1 reps
13/16
1501.2 ms
2 reps
13/8
3.002 sec
3 reps
39/16
4.504 sec
4 reps
13/4
6.005 sec
5 reps
65/16
7.506 sec
6 reps
39/8
9.007 sec
7 reps
91/16
10.508 sec
8 reps
13/2
12.009 sec
9 reps
117/16
13.511 sec
10 reps
65/8
15.012 sec
11 reps
143/16
16.513 sec
12 reps
39/4
18.014 sec
13 reps
169/16
19.515 sec
14 reps
91/8
21.017 sec
15 reps
195/16
22.518 sec
16 reps
13
24.019 sec

Visualized

1 bar2 bars3 bars4 bars5 bar6 bars7 bars8 bars
♩♩♩♩♩♩♩♩
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

How to use this page

If you have a 135 BPM song, and you want a phase modulation of 4 beats (1 bar): that is 1777.6 ms
If you have a 128 BPM song, and you want an audio delay of 2/3 of a beat: this is 312.5 ms

Music calculators & converters

Beats-per-minute
Convert BPM to Hz, bar length, fractions
Audio delay
Calculate audio delay length in msec
Music Frequency
Convert pitch to musical note and wavelength
Song length
Calculate song length from BPM
Music Scale
Generate scales with frequencies
Tap your tempo
Tap to find the BPM of a song or a heartbeat