Voxengo has released SPAN Plus, a fast Fourier transform spectrum analyzer VST/AU effect plug-in for Windows and Mac. SPAN Plus is a real-time audio spectrum analyzer with AAX “Fast Fourier Transform”, AudioUnit, and VST plugin for professional audio and music production applications.
SPAN Plus is an extended version of the free SPAN plugin: SPAN Plus offers several additional features, such as PNG file export, real-time spectrum import/export for multi-track spectrum comparisons, static spectra display, and a display mode ” large”.
SPAN Plus provides you with a very flexible “mode” system that you can use to set your spectrum analyzer preferences. You can specify the size of the Fourier block in the samples, the overlap percentage of the FFT window, and the visual slope of the spectrum. In addition, you can choose to display the secondary spectrum of the desired type (eg, real-time maximum, historical maximum). The spectrum can be visually smoothed to facilitate examination.
In addition to multitrack spectrum comparison, SPAN Plus supports multi-channel analysis and can be configured to display spectra from two different channels or groups of channels at the same time. Spectrum color can be chosen to taste.
SPAN Plus also features output level metering with adjustable ballistics and integration time, EBU R128, and K-system metering (including calibration K-system metering). SPAN Plus displays statistics for level metering, headroom estimation, and clipping detection. Correlation measurement is also available.
SPAN Plus Plugin Features:
- Real-time spectrum import/export
- PNG file export
- Static spectrums display
- Output signal power statistics
- Spectrum smoothing
- User interface window resizing
- Clipping statistics
- Correlation meter
- 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
- Fast Fourier transform spectrum analyzer
- Stereo, mid-side, surround spectrum analyzer
- Stereo correlation meter
- Multi-track spectrum comparison
- PNG spectrum snapshot saving
- Wide spectrum view
- EBU R128, K-system meter
- RMS, true peak level, and clipping detector
This audio plugin can be loaded into any audio host application that conforms to the AudioUnit or VST plugin specification.
SPAN Plus is available at a regular price of $44.95 USD.
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