Fast Fourier transform spectrum analyzer
Stereo, mid-side, surround spectrum analyzer
Stereo correlation meter
Multi-track spectrum comparison
PNG spectrum snapshot saving
K level meter
SPAN Plus is a real-time вЂњfast Fourier transformвЂќ audio spectrum analyzer 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. SPAN Plus is an extended version of the freeware SPAN plugin: 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 вЂњmodeвЂќ 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 & Compatibility
Real-time spectrum import/export
Output signal power statistics
Stereo and multi-chanel analysis
PNG file export
Contextual hint messages
Static spectrums display
User interface window resizing
K-system metering (unweighted)
Internal channel routing
All sample rates support
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)
This audio plugin can be loaded into any audio host application that conforms to the AudioUnit or VST plugin specification.
RTAS compatibility is available by using the FXpansion VST-RTAS adapter.
This plugin is compatible with Windows (32- and 64-bit Windows XP, Vista, 7, 8 and later versions) and Mac OS X (10.6 and later versions, 32- and 64-bit, Intel processor-based) computers (2 GHz dual-core or faster processor with at least 2 GB of system RAM required). A separate binary distribution file is available for each target computer platform for each audio plugin specification.