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SIR Audio Tools SpectrumAnalyzer
What SIR Audio Tools SpectrumAnalyzer is
SIR Audio Tools SpectrumAnalyzer is an audio plugin for inspecting spectral content and a mix’s frequency balance. It combines FFT analysis with an analog-style bank of parallel band-pass IIR filters, and both engines can run together. Multiple analyzer slots, snapshots, freeze, and peak detection support different ways to view audio. The analog band analyzer adds an RMS display, alongside a VU meter and stereo correlation meter. A separate analyzer slot can show the mid/side signal. Its auxiliary feature sends audio between plugin instances when the DAW runs them in the same process and memory space. SpectrumAnalyzer must run inside a DAW; the maker names Logic, Ableton Live, Cubase, and Pro Tools as examples. It is available for macOS 10.13 or newer and Windows 11 or newer in VST, VST3, AU, and AAX formats. Both systems list requirements of 8 GB RAM and 200 MB of disk space. The free edition costs nothing, and the full version costs $39, paid once.
Who it suits
It suits audio makers who need spectrum, level, or stereo-correlation views inside a compatible DAW. It is available for macOS and Windows, with VST, VST3, AU, and AAX formats.
What it does well
- FFT and analog filter engines can run together
- Separate analyzer slot for mid/side signal
- Includes VU and stereo correlation meters
- Available in VST, VST3, AU, and AAX
What to know first
- Requires a DAW; it is not standalone
- Windows requirement is Windows 11 or newer
- No free trial is listed
- Loudness standards are not supported
Limits
The free edition is listed as free; the full version costs $39, paid once. SpectrumAnalyzer must run in a DAW, and the auxiliary feature works between instances only when the DAW uses the same process and memory space.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| SpectrumAnalyzer Free Version | Free edition · Mac and Windows downloads | Free |
| SpectrumAnalyzer Full Version | License key required · Mac and Windows downloads | $39, paid once |
As siraudiotools.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the SIR Audio Tools website and choose the free or full version.
- Download the Windows or Mac version for a system meeting the listed requirements.
- Install the plugin in a DAW that supports one of its listed formats.
- Open it in a DAW such as Logic, Ableton Live, Cubase, or Pro Tools.
- For auxiliary audio between instances, use a DAW that keeps them in the same process and memory space.
Verdict
SpectrumAnalyzer offers several ways to inspect frequency content, levels, and stereo relationships within a DAW. The free edition costs nothing; the full version costs $39, paid once.
Questions
Is there a free version?
Yes. SpectrumAnalyzer Free Version is listed as free. The Full Version is listed at $39, paid once.
Which operating systems does it support?
Downloads are offered for Windows 11 or newer and macOS 10.13 or newer. The listed requirement for both is 8 GB RAM and 200 MB disk space.
Can it run without a DAW?
No. SpectrumAnalyzer is a plugin and must be used with a DAW. The maker names Logic, Ableton Live, Cubase, and Pro Tools as examples.
Which plugin formats are available?
The product page lists VST, VST3, AU, and AAX formats.
Who makes SpectrumAnalyzer?
It is made by SIR Audio Tools, headquartered in Bielefeld, Germany.
Can one license be installed on multiple devices?
A license owner may install it on multiple devices belonging to them for their own use. Simultaneous use by multiple users is expected to require additional license keys.
Facts from SIR Audio Tools SpectrumAnalyzer's own pages
- Analyzer engines
- It includes FFT and analog style parallel band-pass IIR filter engines, which can be used at the same time. · siraudiotools.com, 8 Oct 2026
- Apple Silicon
- The support page says SpectrumAnalyzer runs natively on Apple Silicon M-series devices. · siraudiotools.com, 8 Oct 2026
- Auxiliary audio
- Its auxiliary feature can send audio between SpectrumAnalyzer instances, subject to the DAW using the same process and memory space for those instances. · siraudiotools.com, 8 Oct 2026
- Display and analysis
- Features include multiple analyzer slots, snapshots, freeze, peak detection, RMS display for the analog band analyzer, a VU meter and stereo correlation meter. · siraudiotools.com, 8 Oct 2026
- Headquarters
- Bielefeld, Germany · siraudiotools.com, 28 Sept 2026
- Host requirement
- SpectrumAnalyzer is a plugin rather than a standalone program and must be used with a DAW; the maker names Logic, Ableton Live, Cubase and Pro Tools as examples. · siraudiotools.com, 8 Oct 2026
- License use
- A license owner may install the product on multiple devices belonging to them for their own use; simultaneous use by multiple users is expected to require additional license keys. · siraudiotools.com, 8 Oct 2026
- Mid/side analysis
- The plugin can display the spectral content of the mid/side signal in a separate analyzer slot. · siraudiotools.com, 8 Oct 2026
- Operating systems
- Downloads are offered for Windows and Mac; the listed requirements are Windows 11 or newer and Mac OS 10.13 or newer. · siraudiotools.com, 8 Oct 2026
- Plugin formats
- The product page lists VST, VST3, AU and AAX formats. · siraudiotools.com, 8 Oct 2026
- Privacy and checkout
- The maker says purchases are processed by Cleverbridge AG and that checkout data is governed by Cleverbridge’s privacy policy. · siraudiotools.com, 8 Oct 2026
- Privacy controls
- The privacy policy says analytics and advertising cookies are set only after consent, and describes GDPR rights including access, correction, deletion and portability. · siraudiotools.com, 8 Oct 2026
- Purpose
- SpectrumAnalyzer is an audio spectrum analyzer plugin for viewing spectral content and assessing a mix’s frequency balance. · siraudiotools.com, 8 Oct 2026
- Support
- The maker provides product manuals, downloads, license key recovery and email support at [email protected]. · siraudiotools.com, 8 Oct 2026
- System requirements
- The maker lists 200 MB disk space and 8 GB RAM for both Mac and Windows. · siraudiotools.com, 8 Oct 2026
Where SIR Audio Tools SpectrumAnalyzer stands on Freedom251
- Audio Analysis Software#18 of 43