TrueRTA
TrueRTA is Windows software for testing and evaluating audio systems through a PC with basic sound capability.
What TrueRTA is
TrueRTA is Windows software for testing and evaluating audio systems through a PC with basic sound capability. Its tools include a real-time spectrum analyzer, low-distortion signal generator, digital level meter, crest-factor meter, and dual-trace oscilloscope. The analyzer displays live input spectrum up to 48 kHz, with sample-length choices affecting update speed and low-frequency resolution. TrueRTA can be used for speaker frequency-response measurements, spatial averages, noise study, and equipment-distortion analysis. The generator produces sine waves from 5 Hz to 24 kHz and pink noise; higher levels add a logarithmic sweep from 10 Hz to 48 kHz. Users can add their own microphone, preamp, and USB interface. Data import/export, project files, and report printing are listed across all levels.
Good
- Free Level 1 plan never expires
- Includes spectrum, oscilloscope, and level views
- Supports speaker and equipment measurements
- Offers data import, export, and project files
- Paid upgrades are one-time purchases
Watch out
- Windows 7, 8, or 10 listed as minimum
- Maximum of two channels
- No plugin support
- Advanced features require paid upgrades
Who it suits
TrueRTA suits Windows users evaluating speakers or audio equipment who need the listed measurement displays and can work within two channels.
Verdict
TrueRTA provides a focused set of PC-based audio measurement instruments, with a permanent free level and expandable paid tiers. Check the Windows requirement, two-channel limit, and lack of plugins against your measurement setup.
Plans and prices
From TrueRTA's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Level 1 | Free | 1 octave RTA · signal generator · oscilloscope · never expires |
| Level 2 | $39.95, paid once | 1/3 octave RTA · dBu metering |
| Level 3 | $69.95, paid once | 1/6 octave RTA · crest factor metering · digitally generated sweep |
| Level 4 | $99.95, paid once | 1/12 and 1/24 octave RTA · white noise source |
The facts
Each one read from TrueRTA's own pages, with the date it was checked.
What it does
- Audio analysis
- The analyzer can display live input spectrum up to 48 kHz, with shorter samples for faster updates and longer samples for better low-frequency resolution.checked 8 Oct 2026
- Computer requirements
- The download page lists Windows 7, 8 or 10, 32-bit or 64-bit, as the minimum operating system requirement.checked 8 Oct 2026
- Data features
- The selection guide lists data import and export, project files that save data and notes, and color or black-and-white report printing across all four levels.checked 8 Oct 2026
- Hardware
- The maker says users can add a measurement microphone, preamp and USB interface of their choice to build a measurement system.checked 8 Oct 2026
- Instruments
- Its instruments include a real-time audio spectrum analyzer, low-distortion signal generator, digital level meter, crest factor meter and dual-trace oscilloscope.checked 8 Oct 2026
- Integration
- The maker describes use with a PC sound card and says the software supports selecting audio input and output devices within the application.checked 8 Oct 2026
- Measurements
- The maker describes measuring speaker frequency response, combining speaker measurements into a spatial average, studying noise, and analyzing equipment distortion.checked 8 Oct 2026
- Privacy
- True Audio says it gathers only customer information needed to process orders and does not sell, rent or exchange personal information or email addresses.checked 8 Oct 2026
- Purchase and activation
- Upgrades are activated by entering emailed registration codes, and the maker says no new download is needed after an upgrade.checked 8 Oct 2026
- Purpose
- TrueRTA is Windows software for testing and evaluating audio systems using a PC with basic sound capability.checked 8 Oct 2026
- Security
- True Audio says it uses SSL to encrypt order information during checkout.checked 8 Oct 2026
- Signal generator
- The signal generator produces sine waves from 5 Hz to 24 kHz and pink noise; higher product levels include a digitally generated logarithmic sweep from 10 Hz to 48 kHz.checked 8 Oct 2026
- Support
- The maker lists email support at [email protected] and a phone number for support on weekdays from 8:00 a.m. to 3:00 p.m. Eastern Standard Time.checked 8 Oct 2026
The company
- Founded
- 1990checked 28 Sep 2026
- Headquarters
- Andersonville, Tennessee, USAchecked 28 Sep 2026
- Maker and audience
- True Audio says it was founded in 1990, is located in Andersonville, Tennessee, and develops hardware and software for the audio and acoustics industry.checked 8 Oct 2026
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