Voxengo has updated SPAN Plus to version 1.8, an extended real-time "fast Fourier transform" audio spectrum analyzer plug-in for professional music and audio production applications.
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.
Version 1.8 includes the following changes:
- Fixed a minor frequency drift on deep zoom-in.
- Improved responsiveness during window resizing.
- Improved visual quality at different visual interface scales.
- Windows: implemented (switchable) higher-precision user interface update timer, for smoother display.
SPAN Plus is designed to provide a flexible "mode" system that you can use to setup 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-metering (including calibration K-metering). SPAN Plus displays level metering statistics, headroom estimation and clipping detection. Correlation metering is available as well.