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Audio Calculators

Essential, lightning-fast audio formulas every sound technician needs on site. Free forever with zero ads, designed to give sound engineers rapid answers during setup and soundcheck.

Audio Calculators

Field Formulas at Your Fingertips

DISTANCE TO TIME
Feet / Meters $\leftrightarrow$ Milliseconds
ENVIRONMENTAL SOUND SPEED
Temperature Adjust (°C / °F)
ACOUSTIC WAVELENGTH
Hz $\rightarrow$ Wavelength $\lambda$
VOLTAGE & POWER CONVERSION
dBu / dBV / Volts / Watts

Included Free Calculators

1. Delay & Speed of Sound

Calculates sound velocity based on ambient temperature and relative humidity, providing exact delay times down to sample frames (44.1k / 48k / 96k).

2. Wavelength & Phase Cancellation

Input any frequency to calculate its full, half, and quarter wavelength dimensions for physical subwoofer array positioning and boundary spacing.

3. SPL Summation & Inverse Square Law

Predict SPL attenuation over distance outdoors or combine uncorrelated noise sources with instant logarithmic decibel addition.

4. Pro Level & Voltage Converter

Convert consumer line level (-10 dBV) to professional line level (+4 dBu), RMS voltage, and peak power output across speaker loads.