Live Audio Multi-Tool

MuffStuff

About this app

Live Audio Multi-Tool (LAM-T) is a fast, offline toolbox for live sound engineers, system techs, AV installers, and musicians. Everything you reach for at a gig — an analyzer, an SPL meter, a delay calculator, sub-array alignment, a signal generator — in one clean app. No account, no ads, no tracking.

REAL-TIME ANALYZER (RTA)
• Fractional-octave RTA with a live peak readout
• A / C / Z weighting
• Spectrogram view, freeze, peak hold, and capture/compare
• Adjustable Y-offset for quick reference matching
• Spectrogram sensitivity control to bring out quiet detail

SPL METER + Leq
• dB(A), dB(C), dB(Z) with peak hold
• Running Leq over 1, 15, or 60 minutes
• Per-device calibration offset — match it to a real meter once and it sticks

DELAY CALCULATOR
• Speed-of-sound delay from real temperature and humidity (auto-filled from your location)
• Feet or metres

SUB-ARRAY DESIGNER
• Broadside and end-fire arrays
• Cardioid tops (castellated or all-subs)
• Per-sub delay times computed for your spacing and coverage

SIGNAL GENERATOR
• Sine (20 Hz–20 kHz, log sweep), pink noise, and a polarity-check pulse
• Polarity reader — check a speaker's polarity through the mic

UNIT CONVERTERS
• Temperature, distance, and pressure
• Reads your device's barometer for true local air pressure

Built for the real world: it works offline, launches instantly, and stays out of your way.

Informational only, no warranty. Measurements and conversions are estimates — verify anything critical with calibrated instruments.

What’s new

Version 1.6. Removed Bluetooth laser rangefinder support. In spectrogram view, the RTA slider is now a sensitivity control for bringing out quiet detail.