spectrogram-analyzer

PhonoPaper is a camera app for playing pictures with encoded sound (PhonoPaper-codes). With this app, you can also create your own codes: 10 seconds of sound can be recorded from a microphone and converted into an image.

Photosounder is the first audio editor/synthesizer to transform any sound as an image and to create any possible sound from an image. It have an entirely image-based approach to sound creation and editing.