ListFan
Calculators · Free

Speaker arrival alignment

Calculate additional delay for two speaker paths at one listening position.

01Enter your values

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For sound installers: measure both paths to the same listener and enter existing electronic latency. Arrival time is distance divided by sound speed plus latency; delay the earlier path. Sound speed is 331.3 + 0.606 × temperature in °C. Uniform air, −20 to 50°C. Verify on site; reflections and frequency-dependent phase are not modelled.

Example
m
m
°C
Detailed report
ms
ms

How it works

Calculate additional delay for two speaker paths at one listening position.

c = 331.3 + 0.606T; tᵢ = 1000dᵢ/c + Lᵢ; Δᵢ = max(t₁,t₂) − tᵢ

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About this tool

Calculate additional delay for two speaker paths at one listening position.

For sound installers: measure both paths to the same listener and enter existing electronic latency. Arrival time is distance divided by sound speed plus latency; delay the earlier path. Sound speed is 331.3 + 0.606 × temperature in °C. Uniform air, −20 to 50°C. Verify on site; reflections and frequency-dependent phase are not modelled.

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How to use it

  1. Enter your values

    Main speaker to listener · Fill speaker to listener · Air temperature · Existing main latency · Existing fill latency

  2. Calculate / generate

    Calculate additional delay for two speaker paths at one listening position.

  3. Result

    Add to main speaker: 0 ms; Add to fill speaker: 58.237726 ms

Calculation method

c = 331.3 + 0.606T; tᵢ = 1000dᵢ/c + Lᵢ; Δᵢ = max(t₁,t₂) − tᵢ

Example scenario

Speaker arrival alignment

Main speaker to listener
30 m
Fill speaker to listener
10 m
Air temperature
20 °C
Existing main latency
0 ms
Existing fill latency
0 ms
Result
Add to main speaker: 0 ms; Add to fill speaker: 58.237726 ms

Frequently asked questions

Is this the distance between speakers?

No. Measure each speaker to the same reference listener. Results apply only at that position.

Where does my data go?

Calculations run on your device. Form inputs are not sent to a server.