User:Joca/raw-audio-bitmap

Audacity

Export uncompressed -> format raw -> unsigned 8 bit

The converter reads the file from top to bottom, and generates the bitmap from top to bottom.

Length of the audio defines the amount of data to fill an image. The higher the resolution, the more data you need. Too little data: image becomes black after a certain point. Too much data, a new image file is written.

The shape of the wave influences the generated pattern. The frequency controls the amount of times that the pattern repeats.