BPM Tap Tempo & Delay Time Calculator
Tap along with any song, beat, or metronome to measure exact Beats Per Minute. Calculate delay milliseconds, pre-delay reverb times, and LFO modulation frequencies in real time.
Press the button or tap your keyboard Space bar.
Sync Milliseconds (ms) & LFO Hertz
| Note Value | Normal (ms) | Dotted (ms) | Triplet (ms) | LFO (Hz) |
|---|---|---|---|---|
| 1/1 Whole Note | 2000.0 ms | 3000.0 ms | 1333.3 ms | 0.50 Hz |
| 1/2 Half Note | 1000.0 ms | 1500.0 ms | 666.7 ms | 1.00 Hz |
| 1/4 Quarter Note | 500.0 ms | 750.0 ms | 333.3 ms | 2.00 Hz |
| 1/8 Eighth Note | 250.0 ms | 375.0 ms | 166.7 ms | 4.00 Hz |
| 1/16 Sixteenth Note | 125.0 ms | 187.5 ms | 83.3 ms | 8.00 Hz |
| 1/32 Thirty-Second Note | 62.5 ms | 93.8 ms | 41.7 ms | 16.00 Hz |
Set delay pedal time or VST delay plugin to 375.0 ms (Dotted 1/8th) for classic U2, Pink Floyd, and modern synthwave syncopation.
Synchronizing Spatial Effects to Song Tempo
When mixing music, unsynchronized delay repeats and reverb decays clash with the rhythmic groove of the song, resulting in low-mid clutter and reduced punch. By locking spatial time reflections to exact mathematical divisions of the master tempo (BPM), effects breathe naturally with the drum groove.
High-Precision Performance Timing
Uses the browser performance.now() API with sub-millisecond hardware clock resolution rather than standard Date timestamps for accurate tempo calculation.
Reverb Pre-Delay Formula
Setting vocal reverb pre-delay to a 1/32nd or 1/64th note interval allows the clean initial vocal transient to cut through before the wet reverb tail blooms.
LFO Modulation Sync
Converts musical note divisions directly into cycle rates (Hertz) for programming analog synthesizer filters and sidechain tremolo modulation.
Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS