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Calculate BPM-synced delay and reverb pre-delay times for every note value.

📘 How to Use

  1. Enter the BPM of your track or adjust it with the slider
  2. Check the delay times and LFO rates calculated automatically
  3. Enter the values you need directly into your DAW or effect plugin

BPM to Delay & Reverb Timing Calculator

music_note BPM Settings

BPM
♩ = 500.00 ms

timer Delay / Feedback Times

Note ms Hz

graphic_eq Reverb Pre-Delay Times

Note ms

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Article

BPM to Delay & Reverb MS Calculator｜Instantly Find Tempo-Synced Effect Times

This tool calculates precise delay, feedback, and reverb pre-delay times in milliseconds (ms) and Hertz (Hz) based on your project's BPM. It's designed for music producers, audio engineers, and DJs who want to achieve perfectly timed, professional-sounding effects that groove with the music.

💡 Tool Overview

  • Comprehensive Time Calculations: Automatically converts BPM to milliseconds for a wide range of note values, including whole notes, dotted notes, and triplets.
  • Dedicated Pre-Delay Section: Provides specific, shorter time values (e.g., 1/64, 1/128 notes) ideal for setting reverb pre-delay to maintain clarity in your mix.
  • LFO Rate Conversion: Calculates the corresponding LFO rate in Hertz (Hz) for each delay time, perfect for syncing modulation effects like tremolo, auto-pan, or filters to your track's tempo.
  • Interactive BPM Input: Fine-tune your tempo with both a precise number input and an intuitive slider that are perfectly synced.
  • One-Click Copy: Export all calculated values in a neatly formatted text block with a single click, ready to be pasted into your DAW's plugin settings or production notes.

🧐 Frequently Asked Questions

Q. Why is pre-delay important for reverb?

A. Pre-delay is the short amount of time before the main reverb sound begins after the dry, unprocessed sound. Setting a proper pre-delay (often synced to a 1/32nd or 1/64th note) creates a sense of separation between the source sound and its reverberation. This allows instruments like vocals or snares to maintain their punch and clarity without being washed out or "muddied" by the reverb tail.

Q. What is the "Hz" value used for?

A. The Hertz (Hz) value represents the frequency of an LFO (Low-Frequency Oscillator) that would complete one full cycle in the same duration as the note value. It's incredibly useful for setting the rate of tempo-synced modulation effects like auto-filters, phasers, flangers, or tremolo, especially in plugins that require a rate in Hz instead of musical note divisions.

Q. How should I choose which note value to use for my delay?

A. This is a creative choice that depends on the track's rhythm and desired effect. A 1/4 note delay creates a classic, spacious echo. An 1/8th note delay adds rhythmic energy, common in electronic and pop music. Dotted 8th note delays (1/8D) are famous for creating the galloping, polyrhythmic feel heard in many rock and U2-style guitar tracks. Start with a 1/4 or 1/8 note and experiment to see what fits your groove.

📚 Fun Facts about BPM to Delay & Reverb MS Calculator

Before digital audio workstations, achieving a perfectly tempo-synced delay was a complex, physical process. Engineers used tape machines for echo effects (tape delay), where the delay time was determined by the distance between the record and playback heads and the speed of the tape. Syncing this to a song's tempo required careful manual calculation and mechanical adjustment. Tools like this calculator provide a level of mathematical precision in seconds that was once the stuff of dreams for pioneering audio engineers, allowing producers to focus on the creative aspect of sound design rather than the complex physics behind it.