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SIR Audio Tools SpectrumAnalyzer
Bielefeld, Germany
What it is
SIR Audio Tools SpectrumAnalyzer is a plugin for examining spectral content and frequency balance inside a digital audio workstation. It combines FFT analysis with an analog-style parallel band-pass IIR filter engine, and both analyzers can operate together. Multiple analyzer slots, snapshots, freeze, and peak detection support repeated inspections. The analog band analyzer includes RMS display, while a VU meter and stereo correlation meter show level and stereo relationships. A separate slot can display mid/side spectral content. Auxiliary routing can send audio between SpectrumAnalyzer instances when the host DAW places them in the same process and memory space. It is available in VST, VST3, AU, and AAX formats for Windows and macOS, including native Apple Silicon support. SpectrumAnalyzer must run in a DAW such as Logic, Ableton Live, Cubase, or Pro Tools. Requirements list Windows 11 or newer or macOS 10.13 or newer, 8 GB RAM, and 200 MB disk space. The free edition is free; the full license is $39, paid once.
For and against
For
- FFT and analog-style analysis engines
- Mid/side analyzer slot
- Multiple slots, snapshots, freeze, and peak detection
- VST, VST3, AU, and AAX formats
- Free edition available
Against
- Requires a DAW host
- Windows 11 or newer listed
- No free trial of the full version
- Loudness standards are not supported
The verdict
SpectrumAnalyzer offers several analysis engines and views in common plugin formats, with a free edition and a $39, paid once full license. Buyers must provide a compatible DAW and should note that loudness standards are outside its listed functions.
Who it suits
It suits music producers and engineers who need plugin-based spectrum, level, RMS, and stereo-correlation views. It requires a compatible DAW rather than functioning as a standalone application.
Plans and prices
SpectrumAnalyzer Free Version
Free edition · Mac and Windows downloads
Read 8 Oct 2026 · siraudiotools.com
SpectrumAnalyzer Full Version
License key required · Mac and Windows downloads
Read 8 Oct 2026 · siraudiotools.com
On the record
- Analyzer engines
- It includes FFT and analog style parallel band-pass IIR filter engines, which can be used at the same time.siraudiotools.com · read 8 Oct 2026
- Apple Silicon
- The support page says SpectrumAnalyzer runs natively on Apple Silicon M-series devices.siraudiotools.com · read 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 · read 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 · read 8 Oct 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 · read 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 · read 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 · read 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 · read 8 Oct 2026
- Plugin formats
- The product page lists VST, VST3, AU and AAX formats.siraudiotools.com · read 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 · read 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 · read 8 Oct 2026
- Purpose
- SpectrumAnalyzer is an audio spectrum analyzer plugin for viewing spectral content and assessing a mix’s frequency balance.siraudiotools.com · read 8 Oct 2026
- Support
- The maker provides product manuals, downloads, license key recovery and email support at [email protected].siraudiotools.com · read 8 Oct 2026
- System requirements
- The maker lists 200 MB disk space and 8 GB RAM for both Mac and Windows.siraudiotools.com · read 8 Oct 2026
