Plugin Boutique has launched an exclusive promotion SPAN Plus by Voxengo, offering a 30% discount on the real-time “fast Fourier transform” audio spectrum analyzer for Windows and Mac.

Derived from the spectrum analysis functionality of the GlissEQ dynamic parametric equalizer, SPAN Plus is an extended version of the freeware SPAN plugin.

SPAN Plus provides several additional features such as PNG file export, real-time spectrum import/export for cross-track spectrum comparisons, and static spectrums display.

SPAN Plus provides you with a very flexible “mode” system which you can use to set up your spectrum analyzer preferences. You may specify Fourier block size in samples, FFT window overlap percentage, spectrum’s visual slope. Besides that, you can also choose to display a secondary spectrum of a desired type (e.g. real-time maximum, all-time maximum). Spectrum can be smoothed out visually for an easier examination.

SPAN Plus is on sale for $31 USD until March 31st, 2022 (regular $44.95 USD). It comes in VST/VST3, AU and AAX plugin formats for Windows and Mac.

More information: Voxengo