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Continuous display of audio spectrum from PC input or wave file
Reads audio from Windows audio interface or wave file and creates a continuous spectrum display. Command line support for generating sine, square, triangle and sawtooth wave files. Uses biquad IIR digital filters for frequency detection, plus digital lowpass filters for output extraction. Highly configurable. 60+ FPS with suitable hardware. Manual or automatic gain control.
This project contains a pitch detect and a voice endpoint detect algorithm. Also codes for a digitalfilter and drawing font on bitmap file.
It is just for study, nothing more, so be have fun!