Voxengo SPAN

6.8easy start · #11 of 42
in Audio Analysis Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on Mac, Windows.

Voxengo SPAN is ranked #11 of 42 in audio analysis software on The Geeks Club. It runs on macOS, Windows. There is a free plan.

Voxengo SPAN plans and pricing

All plans

Voxengo SPAN Free Free real-time FFT spectrum analyzer plugin voxengo.com · 3 Oct 2026

Compared on audio analysis software

Free plan: Yes
Real-time analysis: Yes
Loudness standards: Yes
Plugin support: vst
Analysis views: spectrum, loudness, level, RMS, true peak, clipping, correlation, mid/side

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The record

Purpose: SPAN is a free real-time FFT audio frequency spectrum analyzer plugin for professional audio and music production applications.
Analysis modes: It provides stereo, mono, mid-side, and surround spectrum analysis, including 5.1 and 7.1.
Metering: It includes EBU R128 and K-system metering, RMS and true-peak level measurement, clipping detection, and a stereo correlation meter.
Spectrum controls: Users can set FFT block size, window overlap, visual slope, secondary spectrum display, and visual smoothing.
Multi-channel features: SPAN supports multi-channel analysis and can display spectra from two channels or channel groups at the same time.
Additional features: The feature list includes spectrum smoothing, resizable interface, output signal power statistics, channel routing and grouping, preset management, undo/redo, and A/B comparisons.
Plugin formats: The maker lists VST, VST3, AudioUnit, and AAX compatibility.
Host integrations: Listed compatible hosts include Ableton Live, Cubase, Logic Pro, REAPER, Pro Tools, FL Studio, Studio One, OBS, Bitwig Studio, Nuendo, and Adobe Audition.
System requirements: The maker specifies Windows XP, Vista, 7, 8, 10 and later, and macOS 10.12 and later, with a 2.5 GHz dual-core or faster processor and at least 4 GB of RAM.
Downloads: Separate Mac and Windows downloads are offered; the product page lists AU, AAX, and VST3 for Mac and VST, VST3, and AAX for Windows.
Support: Voxengo says customer support issues are handled as soon as possible and directs users to its product-specific Q&A before contacting staff.
Known limitation: Voxengo says importing and exporting spectra for easy track comparisons is a SPAN Plus feature and that the free plugin method works only in some hosts such as Ableton Live.
Privacy and security: Voxengo's site privacy policy says it anonymizes IP addresses before storing them in its long-term database and uses security technologies and procedures to help protect personal information.
Maker and history: Voxengo says it is privately owned by Aleksey Vaneev and began as a full-time commercial endeavor in December 2002; the page does not state a headquarters location.
Price from: Free

Where it ranks on The Geeks Club

Best Audio Analysis Software in 2026#11 of 42
Best Audio Mastering Software in 2026#8 of 31

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Sources

voxengo.com/product/span/· checked 3 Oct 2026
voxengo.com/product/span/features/· checked 3 Oct 2026
voxengo.com/contacts/· checked 3 Oct 2026
voxengo.com/qna/product-span-25/· checked 3 Oct 2026
voxengo.com/privacy-policy/· checked 3 Oct 2026
voxengo.com/about-voxengo/· checked 3 Oct 2026