Delay time·100 BPM · eighth note
100 BPM · eighth note
300
ms
Frequency 3.333 Hz

100 BPM eighth note — 300 ms

At 100 BPM a eighth note lasts 300 ms. One beat is 600 ms and a bar is 2400 ms.

Tempo
100 BPM
Note
eighth note
Length
300 ms
Frequency
3.333 Hz
One beat
600 ms
One bar
2400 ms
Per bar
8

Reverb and LFO use the same number

Set a reverb’s pre-delay and decay to these figures and the tail lands on the beat. LFOs are often dialled in hertz rather than milliseconds, so the table also gives 1,000 divided by the length — that is the rate to use for a tremolo or auto-pan locked to eighth notes.

Nearby cells

Same tempo, other notes

Same note, other tempos

Worth knowing

  • One beat is 60,000 divided by the tempo; every other note is a multiple of it.
  • A dot adds half the value back; a triplet is two thirds.
  • LFOs are often set in hertz rather than milliseconds, so that figure is here too.
  • The bar figures assume a 4/4 time signature.

Common questions

Q. How many milliseconds is a eighth note at 100 BPM?

300 ms. One beat is 600 ms, and this length is a multiple of it.

Q. What rate do I give an LFO?

3.333 Hz — that is 1,000 divided by 300, the rate for a tremolo or auto-pan locked to this note.

Q. How many fit in a bar?

8, because a bar runs 2400 ms in 4/4.

Q. What is one step shorter?

A eighth triplet, which tightens the pattern.