Speaker delay alignment
Estimate the delay to add to the nearer speaker so its sound reaches a listening point with the farther speaker. Enter both acoustic path lengths and air temperature; inspect the distance difference and estimated sound speed.
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Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
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How it works
- Path length difference = −
- Delay to add to near speaker = Path length difference ÷ Estimated sound speed × 1,000
- Worked example
- (12 − 2) ÷ (331.3 × √(293.15 ÷ 273.15)) × 1,000 ≈ 29.14 ms
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
Uses a dry-air ideal-gas approximation: 331.3 × √((273.15 + °C)/273.15) m/s. Humidity, wind, reflections, speaker phase and DSP latency are excluded. Distances are measured to one listening point; verify the final alignment with acoustic measurements.
Sources
- NASA — speed of sound in an ideal gas Sources reviewed: 2026-10-28
- Shure — digital delay and distance alignment Sources reviewed: 2026-10-28
Processing and privacy
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Sources and maintenance
Maintained by emonster. Sources are listed with their own review dates; these are not live-data timestamps or claims of independent expert certification.
