Audio Delay Compensation Calculator

Calculate audio delay times for live sound and studio synchronization based on distance and temperature.

Distance (feet)

Temperature (F)

Sample Rate

Humidity (%)

Formula

Delay (ms) = (Distance m / Speed of Sound) x 1000; Speed = 331.3 + 0.606 x Temperature C

Why does audio need delay compensation?

Sound travels at roughly 1 foot per millisecond. In large venues, delayed speakers must be timed to match the main system.

Does temperature affect the speed of sound?

Yes, sound travels faster in warmer air. At 72F sound travels about 1128 ft/s versus 1087 ft/s at 32F.

How do I set delay on PA speakers?

Measure the distance between main and delay speakers, then calculate the delay time using distance divided by speed of sound.

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