SPAN provides you with a very flexible "mode" system which you can use to setup your sound analysis preferences. You may specify Fourier block size in samples, FFT window overlap percentage, spectrum's visual slope. Beside that you can choose to display secondary spectrum of a desired type (e.g. real-time maximum, all-time maximum). Spectrum can be visually smoothed out for an easier examination.
SPAN supports multi-channel analysis and can be set to display spectrums from two different channels or channel groups at the same time. Spectrum's color can be chosen to taste.
SPAN also features output level metering with adjustable ballistics and integration time, K-metering (including calibration K-metering). SPAN displays level metering statistics, headroom estimation and clipping detection. Correlation metering is available as well.
