An answer to all your spectrum analysis needs

SPAN Plus is a real-time fast Fourier transform audio spectrum analyzer plug-in 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.

SPAN Plus is an extended version of the freeware SPAN plug-in: SPAN Plus provides several additional features such as PNG file export, real-time spectrum import export and static spectrums display.

SPAN Plus provides you with a very flexible mode system which you can use to setup your spectrum analyzer preferences. You may specify Fourier block size in samples, FFT window overlap percentage, spectrum's visual slope.

Beside that you can choose to display secondary spectrum of a desired type (e.g. real-time maximum, all-time maximum). Spectrum can be smoothed out visually for an easier examination.

SPAN Plus 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.

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

Features

• Output signal power statistics
• Spectrum smoothing
• User interface window resizing
• Clipping statistics
• Correlation meter
• K-metering
• 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

System Requirements

• SPAN is available in AudioUnit, AAX, VST and VST3 plug-in formats (including native 64-bit support), for Mac OS X (v10.6 and later), and Windows computers.
• 2 GHz dual-core or faster processor with at least 1 GB of system RAM required.
• A separate binary distribution file is available for each target computer platform for each audio plug-in specification.

Demo version

Processing output is muted for a moment every 45 seconds.

(Demo version is authorized with a product key, which is a text string - no challenge/response nor dongle required) - Get your SPAN Plus plug-in demo here