Enter the tempo of the song in beats per minute and the pulses per quarter note into the calculator to determine the pre-delay time in milliseconds. This calculator can also evaluate any of the variables given the others are known.

## Pre Delay Formula

The following formula is used to calculate the pre-delay time in audio processing.

PD = 60 / (BPM * PPQ)

Variables:

• PD is the pre-delay time in milliseconds BPM is the tempo of the song in beats per minute PPQ is the pulses per quarter note, a measure of resolution in MIDI sequencing

To calculate the pre-delay time, divide 60 by the product of the tempo of the song in beats per minute and the pulses per quarter note. The result will be the pre-delay time in milliseconds.

## What is a Pre Delay?

Pre Delay is a term used in audio processing, specifically in reverb effects, to refer to the time gap between the original sound and the onset of reverberation. It is used to create a sense of depth and space in the sound, making it seem as though the sound is coming from a larger room or hall. The longer the pre delay, the larger the perceived space. It is an essential parameter in music production and live sound engineering.

## How to Calculate Pre Delay?

The following steps outline how to calculate the Pre Delay (PD) using the given formula:

1. First, determine the tempo of the song in beats per minute (BPM).
2. Next, determine the pulses per quarter note (PPQ), which is a measure of resolution in MIDI sequencing.
3. Next, gather the formula from above: PD = 60 / (BPM * PPQ).
4. Finally, calculate the Pre Delay (PD) using the formula.
5. After inserting the values of BPM and PPQ into the formula and calculating the result, check your answer.

Example Problem:

Use the following variables as an example problem to test your knowledge:

BPM (tempo of the song) = 120

PPQ (pulses per quarter note) = 480