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 smoothing. Highly configurable. 60+ FPS with suitable hardware. Manual or automatic gain control.
Features:
- Continuous display update
- Single function, easy to learn
- Zoom in on small frequency or dB range
- Resizable main window and repartitionable panes
- Crosshair cursor when Ctrl is pressed
- Single, stand-alone exe file, no install/uninstall
- Builds with Visual Studio 2019 or 2022
- Bit-perfect sine wave generation for all sample sizes










