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SIR Audio Tools SpectrumAnalyzer

Freemium#28 of 43 in Audio Analysis Software

SIR Audio Tools SpectrumAnalyzer: A capable free analyzer plugin with a $39 full edition for deeper metering and routing. Ranked #28 of 43 in Audio Analysis Software by our editors (5.6/10); pricing: Free plan; best for free spectrum plug-in with upgrade path.

5.6/10Editor score
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SIR Audio Tools SpectrumAnalyzer5.6 Visit site

At a glance

  • Editor score
    5.6 / 10
  • Pricing
    Free plan
  • Best for
    Free spectrum plug-in with upgrade path
  • Free plan
    Yes
  • Paid from
    $39 one-time
  • Real-time analysis
    Yes
  • Facts checked
    20 Sep 2026
SIR Audio Tools SpectrumAnalyzer screenshot

  • Where it wins

    • Combines FFT and analog-style parallel band-pass analysis
    • Supports mono, stereo, and stereo mid/side configurations
    • Works in VST, VST3, AU, and AAX formats on Windows and macOS

  • Where it doesn't

    • Requires a compatible DAW host
    • Full feature set costs $39 one-time
    • Does not provide loudness standards analysis

Our verdict on SIR Audio Tools SpectrumAnalyzer

SIR Audio Tools SpectrumAnalyzer is a desktop audio plugin for producers, engineers, and other DAW users who need spectral and metering information during audio work. It is available for Windows and macOS in VST, VST3, AU, and AAX formats, making it suitable for compatible DAW-based workflows rather than standalone operation. Its core analysis options include FFT spectrum analysis and an analog-style parallel band-pass engine, with multiple analyzer display slots for viewing different signals or configurations.

The pricing structure is straightforward. The Free Version provides the free edition of the SpectrumAnalyzer plugin. The Full Version costs $39 USD as a one-time purchase and provides the full SpectrumAnalyzer plugin; a license key is required. The vendor also displays EUR pricing, and VAT may apply. This gives users a direct way to start with the free edition and move to the paid version when the complete feature set is needed.

Its broader feature set suits detailed DAW monitoring: auxiliary audio routing between plugin instances, snapshots, freezing, presets, peak detection, RMS and VU metering, and stereo correlation measurement. Mono, stereo, and stereo mid/side channel configurations add flexibility for different channel layouts. The main limitation is its plugin-only format, so it depends on a compatible DAW host. It also does not provide loudness standards analysis or AI features. Choose SpectrumAnalyzer for free access to spectrum analysis with a clear upgrade path; choose an alternative if you need standalone operation or loudness-standard workflows.

Your product? Our editors can test SIR Audio Tools SpectrumAnalyzer in depth and publish a review, labelled as paid · from $149/mo →

SIR Audio Tools SpectrumAnalyzer pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 20 Sep 2026.
See plans on siraudiotools.com

All 2 SIR Audio Tools SpectrumAnalyzer plans and prices →

SIR Audio Tools SpectrumAnalyzer fact sheet

Free planYes
Paid from$39 one-time
Real-time analysisYes
Offline file analysisNot verified
Loudness standardsNo
Maximum channelsNot verified
Plugin supportVst
Analysis viewsspectrum, VU meter, RMS meter, stereo correlation meter, peak display
DeploymentDesktop
PlatformsWindows, macOS
Compliance & securityGDPR
SupportEmail, Docs
Built forSolo, Small business (editorial estimate)
PricingFree plan (source)
Websitesiraudiotools.com
Facts checked20 Sep 2026

Alternatives to SIR Audio Tools SpectrumAnalyzer

See all SIR Audio Tools SpectrumAnalyzer alternatives →

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Featured on iTechGuides

Featured on iTechGuides — SIR Audio Tools SpectrumAnalyzer 5.6/10

SIR Audio Tools SpectrumAnalyzer is listed in our Audio Analysis Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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