Practical tools for acoustics and signal processing

Acoustic tools for engineers and researchers

Free online calculators and analysis tools for acoustics, noise, vibration and signal processing.

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Tool directory

Built around engineering workflows

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Sound Levels

Signal Processing

Rotating Machinery

Blade Passing Frequency Soon
RPM / Hz Converter Soon
Tip Speed Calculator Soon

Propagation

Psychoacoustics

SQM Analyzer Available
Understanding Sound Quality Metrics Available

Create Sounds

Tone & Noise Generator Available
Advanced Sound Generator Available

Reference notes

Useful results, with the reasoning visible

Every calculator pairs an immediate numerical result with its formula, assumptions and a concise engineering explanation. The aim is clarity—not a black box.

About

A focused toolbox for acoustic work

Acoustic Toolbox is being developed as a practical reference for engineers, researchers and students working with sound, vibration, rotating machinery and measurement data.