Voxengo Span

Voxengo Span is a free real-time “fast Fourier transform” audio spectrum analyzer AAX, AudioUnit, and VST plugin for professional sound and music production applications. For the most part, it was derived from Voxengo GlissEQ dynamic parametric equalizer and reproduces its spectrum analysis functionality.

It 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, and spectrum's visual slope. Besides that, you can choose to display the secondary spectrum of the desired type (e.g. real-time maximum, all-time maximum). The spectrum can be smoothed out visually for an easier examination.

It 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.

Voxengo Span also features output level metering with adjustable ballistics and integration time, K-system metering (including calibration K-system metering). Voxengo Span displays level metering statistics, headroom estimation, and clipping detection.  Correlation metering is available as well.

Features and Highlights

• Output signal power statistics
• Spectrum smoothing
• User interface window resizing
• True peak and clipping statistics
• Correlation meter
• EBU R128 LUFS/LU metering
• K-system metering (unweighted)
• Stereo and multi-channel analysis
• Mid/side analysis
• Internal channel routing
• Channel grouping
• Preset manager
• Undo/redo history
• A/B comparisons
• Contextual hint messages
• All sample rates support
• User interface color schemes
• Retina and HighDPI support

Compatibility

This audio plugin can be loaded into any audio host application that conforms to the AudioUnit or VST plugin specification. Plugins with the AAX version available can be loaded in Pro Tools 12+.

This plugin is compatible with Windows (32- and 64-bit Windows XP, Vista, 7, 8, 10, and later versions) and macOS (10.7 and later versions, 64-bit Intel processor-based) computers (2.5 GHz dual-core or faster processor with at least 4 GB of system RAM, SSE4.2 instructions support required, e.g. any Intel Core i-, AMD Bulldozer- or Zen-based processor). A separate binary distribution file is available for each target computer platform and audio plugin specification.

Compatible Windows and macOS plugin software: Cubase, Logic Pro, ProTools, Ableton Live, Reaper, Presonus Studio One, FL Studio, Cakewalk, Nuendo, WaveLab, GarageBand, Vegas, SoundForge, Audition, Samplitude, Digital Performer, Mixcraft, Bitwig Studio, Edius, others.

Also Available: Download Voxengo Span for Mac