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Audio Delay Phase Calculator
Translate electronic delay into phase lag at one frequency for interpreting system measurements.
Frequency (Hz): 20–20000; Electronic delay (ms): 0–1000
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Audio Delay Phase Calculator
Frequency (Hz): 1000 Electronic delay (ms): 0.5
- Period (ms)
- 1.000000
- Elapsed cycles
- 0.500000
- Total phase lag (°)
- 180.000000
- Wrapped phase lag (°)
- 180.000000
Period ms = 1000/f; cycles = f × delay ms/1000; total lag = cycles × 360°. Wrapped lag is the fractional cycle × 360°, rounded to six decimals then reduced modulo 360°. Example: 1000 Hz and 0.5 ms gives 180° lag. Frequency: 20–20000 Hz; delay: 0–1000 ms. Positive delay means lag, not lead. This is a single-frequency ideal delay model, not a measurement of speakers, filters or acoustic paths. Equal wrapped phase can hide whole cycles of delay; do not infer broadband alignment or polarity from one frequency.
Methodology
How it works
Period ms = 1000/f; cycles = f × delay ms/1000; total lag = cycles × 360°. Wrapped lag is the fractional cycle × 360°, rounded to six decimals then reduced modulo 360°. Example: 1000 Hz and 0.5 ms gives 180° lag. Frequency: 20–20000 Hz; delay: 0–1000 ms. Positive delay means lag, not lead. This is a single-frequency ideal delay model, not a measurement of speakers, filters or acoustic paths. Equal wrapped phase can hide whole cycles of delay; do not infer broadband alignment or polarity from one frequency.
Method and assumptions documented by Techrider.live
2026-10-16
Frequently asked questions
Is a full cycle equivalent to no delay?
Only the wrapped phase at that frequency is the same. One cycle still adds a full period of latency. Measure the full system across frequency before alignment decisions.