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SPAN

Voxengo

A free real-time FFT spectrum analyzer plugin with level and loudness metering.

Free
Mixing & MasteringPluginsUtilities

Overview

SPAN is a free real-time FFT (fast Fourier transform) spectrum analyzer plugin from Voxengo for professional audio and music production. It provides a flexible display and metering system for examining the frequency content and levels of audio signals.

It is aimed at mixing and mastering engineers and works in any compatible DAW on macOS and Windows.

  • Real-time FFT spectrum analysis with adjustable block size and overlap
  • Flexible mode system with secondary spectrum and visual slope options
  • Multi-channel analysis of two channels or channel groups at once
  • Output level metering with adjustable ballistics and integration time
  • EBU R128 and K-system metering plus correlation metering
  • Available in VST, VST3, AU, and AAX formats for macOS and Windows

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