Paint a sound.

Turn visual brightness into a short sound on iPhone and iPad. Draw, listen and export a real WAV with the recipe that made it.

US$3.99 once · No subscription.

A field you can hear

Time moves left to right. Pitch runs from low at the bottom to high at the top. Paint or erase amplitudes, import a PNG/JPEG, reverse time and choose your frequency range, duration, threshold and gamma.

Make it reusable

Save named local projects and mapping presets. Render the current field and audition the actual waveform. Share mono 48 kHz PCM16 WAV, amplitude PNG, frequency CSV and a restorable JSON backup in one ZIP. Imported projects include unchanged source bytes.

A focused instrument

64 logarithmic sine bands with 128 linearly interpolated time columns. 0.5–8 seconds, 100–8000 Hz. Images are stretched to the working field and alpha is composited on black. −1 dBFS sample normalization and 10 ms fades are not true-peak limiting. This creates a new sound; it does not recover original audio from a spectrogram. No microphone, audio import, AUv3 or MIDI.

Your work stays local

No account, ads, analytics or developer uploads. Save backups before deleting projects or uninstalling; system backup settings and chosen Files providers may apply.