PA at a distance of 10 meters
delay: 29.13 ms
Load this exampleAudio & acoustics
Delay time calculator
Convert meters to delay time or milliseconds back to meters for PA alignment, loudspeaker distance and time alignment.
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Examples
Typical calculations
Delay line at 25 meters
delay: 72.82 ms
Load this example2.5 milliseconds back calculation
Distance: 0.86m
Load this exampleFAQ
Frequently asked questions
Why is temperature important?
As the temperature increases, the speed of sound increases. This also changes the conversion between meters and milliseconds.
What do I use the calculator for in practice?
For example for delay lines, time alignment between tops and subs or for the classification of running times in space.
How much delay equals one meter?
At 20 degrees C it is approximately 2.91 milliseconds per meter.
Is humidity taken into account?
No. The initial version calculates using the air temperature. This is close enough for most audio applications.
Can I also use it to evaluate in-ear or studio running times?
Yes, as long as you need a rough guide for airborne sound. You have to consider electronic latencies separately.
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Sources and notes
Rule status and context
- Formulas
- c = 331.3 + 0.6 x temperature, delay = distance / c x 1000, distance = delay / 1000 x c
- Note
- Suitable for sound reinforcement, time alignment and acoustic approximations in air.