Delay & Reverb Calculator — Find Perfect Millisecond Settings for Any Tempo.

When you’re mixing music, the timing of your effects is just as important as the sound itself.
This calculator helps you instantly find perfectly synced delay and reverb times based on your song’s tempo (BPM).

Whether you’re dialing in a vocal delay, syncing synth echoes to the groove, or setting the ideal reverb pre-delay for clarity — this tool gives you accurate timing values in milliseconds (ms) for every musical subdivision.

How It Works

1. Enter your song tempo (BPM) into the calculator below.
   For example: 120 BPM
2. The calculator automatically displays:
   • Delay times for note divisions: 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, and 1/64
   • Straight, dotted, and triplet values — all shown in milliseconds
   • Reverb pre-delay suggestions (Short, Medium, Long)
3. Use these values to:
   • Set delay plug-ins (enter the millisecond value)
   • Tune LFO sync or modulation timing
   • Adjust reverb pre-delay for natural or dramatic space

Tips for Using Delay

• 1/4 Note Delays — Great for rhythmic vocals, guitars, and synths.
  Works well when synced to the tempo for tight, driving grooves.
• 1/8 or 1/16 Delays — Use for quick slapback or to add width without washing out the mix.
  Perfect for vocals, percussion, and short leads.
• Dotted & Triplet Delays — Add a more musical, syncopated feel.
  Dotted delays feel laid-back, while triplet delays push energy forward — try them creatively against straight rhythms.
• Ping-Pong Delays — Set different times for left/right channels (e.g., dotted left, straight right) for a wide stereo image.
• Feedback Control — Keep feedback around 10–30% for subtle ambience, or crank it for ambient soundscapes.

Tips for Using Reverb

• Short Pre-Delay (0–20 ms) — Creates intimacy and makes the reverb blend tightly with the source. Ideal for vocals in smaller rooms.
• Medium Pre-Delay (20–50 ms) — Adds separation and clarity between the dry and wet signal. Keeps vocals upfront in dense mixes.
• Long Pre-Delay (50–80 ms) — Gives a larger, cinematic sense of space — perfect for ballads, pads, and ambient music.
• Combine With EQ — Roll off low frequencies in the reverb to avoid muddy mixes, and slightly cut highs to prevent harsh reflections.
• Layer Multiple Reverbs — Use a short room and a long hall together for depth and realism.

Pro Tip

Try matching delay feedback and reverb decay time to your track’s tempo —
for example, a 120 BPM song’s quarter-note delay (~500 ms) can pair beautifully with a reverb tail of 1–1.5 seconds for smooth rhythmic glue.

In Short

• Enter your tempo
• Get precise delay & reverb times in milliseconds
• Apply them in your mix for tight, musical, professional-sounding effects

This tool bridges the gap between creative mixing and technical precision, helping you achieve cleaner, more controlled, and more expressive mixes every time.