Reverb Pre-Delay
Set reverb pre-delay to a musically synced time from the tempo.
About Reverb Pre-Delay
The dotted eighth is a favourite pre-delay length, and it is computed directly from the beat length of the song tempo. A synced pre-delay keeps the reverb sitting rhythmically behind the notes instead of smearing the attack.
Formula
Reverb Pre-Delay
Pre-delay = 60000 / BPM x chosen note division
- division
- The rhythmic note the pre-delay snaps to
Worked example
With the default values below, Reverb Pre-Delay returns Pre-Delay of 375.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Tempo (BPM)accepts 20–300 BPM
- 120 BPM
- Sync divisionone of Quarter note, Eighth note, Dotted eighth, Sixteenth note
- Dotted eighth
Results
- Pre-Delay
- 375.0 ms
- Quarter Beat
- 500.0 ms
- Pre-Delay Frequency
- 2.00 Hz
Step by step
- 1Values used
- 2Reverb Pre-Delay
- 3Pre-Delay= 375.0 ms
- 4Quarter Beat= 500.0 ms
- 5Pre-Delay Frequency= 2.00 Hz
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Reverb Pre-Delay calculated?
Pre-delay = 60000 / BPM x chosen note division The dotted eighth is a favourite pre-delay length, and it is computed directly from the beat length of the song tempo.
Why does Reverb Pre-Delay matter?
A synced pre-delay keeps the reverb sitting rhythmically behind the notes instead of smearing the attack.
What values do I need to enter?
This calculator takes 2 inputs: Tempo (BPM), Sync division. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.