Measure, tune, play: your audio tools in one place.
Free, with no account and nothing to install, in your browser. The sound of your microphone never leaves your device.
Sound level meterdB(A), dB(C), Leq from 1 minute to 1 hour, your country's legal limits, recording.
Room acousticsClap your hands: RT60, EDT, C50 and C80 clarity, STI, per octave band.
Spectrum analyser (RTA)The live spectrum of the sound, in 1/1 to 1/24-octave bands or FFT, in dB SPL.
Transfer functionDual-channel FFT: magnitude, phase, coherence and delay, like Smaart or REW.
SpectrogramSound in colour, scrolling or in 3D, to turn with your finger.
TunerGuitar, bass, violin, cello… automatic, or string by string.
MetronomeFrom 30 to 300 beats per minute, with time signatures and sounds of your choice.
RapidSheetFree music, one instrument at a time.