Spectacle is a real-time spectral analyzer using the short-time Fourier
transform, available as LV2 audio plugin and JACK client.

features:
* display the spectrum on logarithmic musical scale
* control the parameters of the analysis that affect latency and precision
* have zoom functionality and smooth interpolation
* identify the value under cursor and the peaks

WWW: https://github.com/jpcima/spectacle
