# Audio delay calculator

### Give the tempo and the time signature

Express the length of the delay as fractions of the beat

### Beats/minute → msecs/beat

• Beats-per-minute: `120` BPM
• Beats-per-second: `2` Hz
• Length of 1 beat: `0.5` second = 500 msec
• Length of 1 bar (4 beats): `2` second
• ### Fraction → msecs

• Delay = 2 / 12 of a beat
• = Triplet note
• = `83.3` msecs
• ### Repeated delays

• delay syncs with the beat after 6 repetitions = 1 beats
• x 2 = 167 msecs
• x 3 = 250 msecs
• x 4 = 333 msecs
• x 5 = 417 msecs
• x 6 = 500 msecs
• #### Delay vs beat

 1 2 3 4
 ♩ ♩ ♩ ♩
 ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️ ↵️

### How to use this page

• If you have a 135 BPM song and you want a phase modulation of 4 beats: that is 1777.6 sec
• 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 tools

Beats-per-minute
Convert BPM to Hz, bar length, fractions

Audio delay
Calculate audio delay length in msec

Song length
Calculate song length from BPM

Tap your tempo
Tap to find the BPM of a song or a heartbeat