Tunary InstrumentsHow to use delay & reverb calculator
- Enter the tempo of your track in BPM.
- Choose a straight, dotted or triplet note value from the table.
- Copy the time into your effect, then adjust the sound by ear.
Learn the music behind it
A little more about this tool
A quarter-note delay in milliseconds equals 60,000 divided by BPM. At 120 BPM, a quarter note is 500 ms, an eighth note is 250 ms and a dotted eighth is 375 ms. Dotted notes last one and a half times the straight value; triplets last two thirds. The reverb suggestion shows a bar-length timing reference and a short pre-delay starting point. Real reverb decay does not end sharply at that time, so listen for how the tail sits around the next phrase.
Should reverb always be tempo-synced?
No. Tempo-based times are useful starting points. Short rooms, long ambient tails and deliberately off-grid delays can all work when they serve the music.
Is it really free?
Yes. Use this tool without an account, subscription or download. Audio files and microphone input stay on your device. Browser format support varies; MP3 and WAV are good starting points.