Voxengo SPAN Plus

Voxengo SPAN Plus is an application that was constructed to attain the functionality of a “fast Fourier transform” audio spectrum analyzer. Besides its primary purpose, the app also serves as a VST and AudioUnit plugin as well as the tool for sound professionals who use music production software.

Being derived mostly from one of its counterparts, the Voxengo GlissEQ, it complements the latter by bringing additional spectrum analysis functionality. In comparison to its smaller brother, Voxengo SPAN, this version does come with some other features that improve its overall capabilities.

Among these extra features, the most prominent ones include real-time spectrum importing or exporting for cross-track spectrum comparisons, static spectrum displays, and PNG file export.

The provided work modes that this application carries can help users achieve their preferred setups in terms of the spectrum analyzer settings. Customization can be obtained by specifying the Fourier block size, overall window percentage or spectrum visual slope.

Those who require the presence of a secondary spectrum display will be happy to know that Voxengo SPAN Plus offers the possibility to view secondary spectra and it provides adjustable display types: real-time maximum, all-time maximum, etc.

Some other tools which come packed in this app allow for multi-channel analysis and metering of output levels, which can be visualized with the help of configurable ballistics or integration times.