SPAN supports multi-channel analysis, and can be set to display spectrums from two different channels or channel groups at the same time. Spectrum can be smoothed out visually for an easier examination. Beside that you can choose to display secondary spectrum of a desired type (e.g. You may specify Fourier block size in samples, FFT window overlap percentage, spectrum's visual slope. SPAN provides you with a very flexible “mode” system which you can use to setup your spectrum analyzer preferences. SPAN is a free real-time “fast Fourier transform” audio spectrum analyzer AAX, AudioUnit, and VST plugin for professional sound and music production applications. RMS, true peak level, and clipping detector.Stereo, mid-side, surround spectrum analyzer.Fast Fourier transform spectrum analyzer.
