TrueRTA
TrueRTA: A low-cost Windows toolkit for spectrum analysis, signal generation, and audio measurement. Ranked #24 of 43 in Audio Analysis Software by our editors (6.0/10); pricing: Free plan; best for budget Windows measurement toolkit.
At a glance
- Editor score6.0 / 10
- PricingFree plan
- Best forBudget Windows measurement toolkit
- Free planYes
- Real-time analysisYes
- Founded1990 · Andersonville, Tennessee, USA
- Facts checked20 Sep 2026
Where it wins
- Free Level 1 access with real-time analysis, signal generation, and oscilloscope
- Paid levels add finer resolution, metering, sweeps, calibration, and reports
- Supports measurement projects, data import/export, and microphone calibration
Where it doesn't
- Windows-only availability limits cross-platform use
- No plugin support is listed
- Finer RTA resolution requires a paid level
Our verdict on TrueRTA
TrueRTA is Windows software for testing and evaluating audio systems through a PC sound interface. It combines a real-time audio spectrum analyzer with a low-distortion signal generator, digital level meter, crest-factor meter, and dual-trace oscilloscope. The product is aimed at audio and acoustics testing, home theater, car audio, music production, and loudspeaker work. Its two-channel measurement capacity supports users who need a focused desktop toolkit rather than a broad, plugin-based production environment.
Pricing follows a freemium model with a free Level 1 edition. Level 1 provides a 1/1-octave real-time analyzer, signal generator, and oscilloscope. Level 2 costs $39.95 one-time and adds 1/3-octave analysis and dBu metering. Level 3 costs $69.95 one-time, adding 1/6-octave analysis, crest-factor metering, and a digitally generated sweep. Level 4 costs $99.95 one-time and adds 1/12- and 1/24-octave analyzers plus a white-noise source. The published paid tiers make the cost of finer measurement resolution clear, while project files, data import and export, report printing, and calibration support extend the toolkit beyond live spectrum viewing.
TrueRTA’s strongest fit is for Windows users who want dedicated measurement functions at a one-time cost. Frequency-response measurement, microphone and sound-system calibration, color and black-and-white report printing, and saved notes support repeatable audio evaluation workflows. The tradeoff is a narrow platform and ecosystem profile: Windows is the only listed platform, and plugin support is not listed. Choose TrueRTA when focused analysis, signal generation, and staged upgrades matter more than cross-platform access or integration with a plugin-centered workflow. Users seeking those broader ecosystem options should consider an alternative.
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TrueRTA pricing
All 4 TrueRTA plans and prices →
TrueRTA fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Real-time analysis | Yes |
| Offline file analysis | Not verified |
| Loudness standards | Not verified |
| Maximum channels | 2 channels |
| Plugin support | None |
| Analysis views | spectrum analyzer, oscilloscope/waveform, digital level meter, crest-factor meter |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Email, Phone, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan (source) |
| Website | trueaudio.com |
| Facts checked | 20 Sep 2026 |
Alternatives to TrueRTA
- Insight 2A focused metering plug-in for loudness compliance and multichannel audio analysis.9.1
- WLM Plus Loudness MeterA standards-focused loudness plugin for production across major DAWs.9.0
- SmaartA broad measurement suite for live sound, acoustics, and SPL monitoring.8.9
See all TrueRTA alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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