Vibrating elastic surfaces creates geometric patterns called 'Chladni Patterns'. If the surface is a non-uniform reflective surface is called a 'Makyoh'; Japanese for 'Magic Miror'. The application 'AUCH (AUdio-CHecker)' combines the two techniques to create a new way of looking at sound.
(*) The Source Code compiles on Mac and Linux, but it is no longer tested on Debian, since its portaudio packages is broken.
WARNING: Version 1.9 is a demo release. It uses the microphone to capture sound. Remove the last line from the configuration file (demo=N) to reactive the interactive mode.