See full list on Hi everyone, I want to use Voxengo Span to compare a reference track with the track Im working on - I want to underlay the reference track with my own so I can compare them, i.e. Have the two spectra displayed one under the other. There seem to be a few YouTube tutorials on this but they skip far. My preferred Voxengo SPAN settings, including a tip for judging stereo width, and some general thoughts on using spectrum analyzers when mixing.Music by Rene. SPAN by Voxengo is one of the best free plugins available. It can give you lots of information about your audio to help you make critical mixing and mastering decisions. In this video, I share my favourite settings which help me get the most out of the plugin. Voxengo SPAN Plus v1.3Size Win 6 Mb // Mac 31 Mb. SPAN Plus is a real-time “fast Fourier transform” audio spectrum analyzer AAX, AU and VST plugin for professional music and audio production applications. For the most part it was derived from Voxengo GlissEQ dynamic parametric equalizer and reproduces its spectrum analysis functionality.

In this week's Friday Free Plug-in slot we are featuring a free Spectrum Analyser plug-in from Voxengo, who as well as being well known for their VST and AU plug-ins also make an increasing number of AAX Native plug-ins for Pro Tools.


Span is a flexible, configurable FFT Spectrum Analyser and metering plug-in. It offers FFT block sizes from 64 to 65,536 so finding the right compromise between latency and resolution for your particular computer is easy. The Hold function allows detailed examination of spectrums and multichannel support up to 7.1. Built-in K System metering is also included.

Voxengo span tutorial download


  • Fast Fourier transform spectrum analyser
  • Stereo, mid-side, surround spectrum analyser
  • Stereo correlation meter
  • K level meter

SPAN provides you with a very flexible “mode” system which you can use to setup your spectrum analyser preferences. You can specify Fourier block size in samples, FFT window overlap percentage, spectrum's visual slope. Besides that, you can choose to display a secondary spectrum of the desired type (e.g. real-time maximum, all-time maximum). Spectrum can be smoothed out visually 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 colour can be chosen to taste.

Span Vst Plugin

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

System Requirements

This AAX plug-in is for Mac OS X version 10.6 and later, universal binary (32-bit and 64-bit Intel processor support) and for 32 and 64-bit hosts on Windows. This plug-in requires ProTools 12 to run.


No Sign Up Required

All you need to do is go to the Free Downloads page on the Voxengo website and click on the Download link to download the Mac and Windows installers.

Coments are closed

Top Posts

  • Keyshot 7 Mac Download
  • Adobe Photoshop Elements 1.0 Free Download

Scroll to top