Lumisound

Real-time audio spectrogram for iPhone.

Contact

For support, questions, or feedback, email: me@benjilofi.com

Frequently Asked Questions

Why does Lumisound need microphone access?

Microphone access is required for real-time audio analysis. Audio is processed entirely on your device and is never stored or transmitted anywhere.

Why does Lumisound need Photos access?

Photos access is only requested when you tap the Save button to export a spectrogram image to your camera roll. It is never accessed otherwise.

The app isn't responding to sound. What should I check?

Make sure microphone permission is enabled in Settings → Privacy & Security → Microphone → Lumisound.

How do I export a spectrogram?

Tap the Save button after recording. The full session will be saved as a high-resolution image to your Photos library.

Lumisound by Jack Moss