SPAN Free Spectrum Analyzer by Voxengo (VST/AU/AAX)

SPAN is a free real-time FFT audio frequency spectrum analyzer plugin designed for professional audio and music production. This versatile tool offers comprehensive spectrum analysis with flexible customization options.

Key Features:

• Multi-channel analysis including stereo, mono, mid-side, and 7.1/5.1 surround sound
• Adjustable FFT parameters: block size, window overlap, and visual slope settings
• Secondary spectrum display options (real-time maximum, all-time maximum)
• Visual spectrum smoothing for easier examination
• EBU R128 and K-system metering with calibration
• Stereo correlation meter and true peak clipping detection
• Multiple color variants and visual customization options

Compatibility: Works with 64-bit Mac OS and Windows in major DAWs including Ableton Live, Cubase, Logic Pro, REAPER, Pro Tools, FL Studio, and Studio One.