Sonance

A real-time chromatic instrument tuner with sub-cent pitch detection.

Sonance listens through the microphone, detects pitch in real time, and displays tuning feedback on a curved gauge. FFT plus autocorrelation gives sub-cent accuracy for any instrument.

Features

Chromatic tuning

Real-time A440 chromatic detection with note name and octave.

Sub-cent accuracy

FFT plus normalized autocorrelation refine pitch in the time domain.

Live cent offset

Color-coded feedback shows in-tune, close, and out-of-tune states.

Animated gauge

A spring-physics needle gauge responds instantly to your playing.

How it works

AVAudioEngine taps the microphone input.

A Hanning-windowed FFT finds the rough pitch.

Autocorrelation refines the frequency for sub-cent precision.

The note and cent offset render on the live gauge.

SwiftUIAVFoundationAccelerate / FFT

Back to all products