Open Audio Analyzer vs Room EQ Wizard
Open Audio Analyzer
open-audio-analyzer.com
Room EQ Wizard
roomeqwizard.comSide by side
| Figure | Open Audio Analyzer | Room EQ Wizard |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 2 | 2 |
| Spec score · Audio Analysis Software | 8.6 (#5) | 7.6 (#26) |
| Platforms | The maker lists desktop downloads for macOS 14.2+, Windows 10 1809+ and Linux; its privacy policy also covers iPadOS and Android builds. | Downloads are provided for Windows 7/8/10/11 and Vista/XP Pro x64, macOS 10.15–14, and Linux AMD64 or Java-runtime-based Linux. |
| Privacy | The maker says there are no accounts, analytics, telemetry, crash reporting, advertising or third-party services, and measurements stay on the device unless explicitly published locally. | The REW application and website do not collect user information, and downloads are free and anonymous; Pro-purchase email addresses are used only to deliver the upgrade code. |
| Purpose | Open Audio Analyzer is a free, open-source loudness and spectrum analyzer for live audio and audio files. | REW helps optimize listening-room, studio and home-theater acoustics, speaker and subwoofer placement, audio-chain performance and EQ. |
| Support | Technical support is directed to the public GitHub issue tracker, with documentation covering installation, metrics, keyboard controls, wire protocol and building. | The maker provides comprehensive in-app and online help and directs users to the AV NIRVANA REW forum for assistance. |
Plans
In their own words
Open Audio Analyzer
Open Audio Analyzer is free, open-source software for measuring loudness and spectrum in live audio and audio files. Its fourteen meter types include loudness, true peak, VU, spectrum, spectrogram, oscilloscope, phase scope and histogram. Loudness measurements follow EBU R 128 and ITU-R BS.1770-4, with momentary, short-term and integrated LUFS, loudness range and oversampled true peak. Users can arrange meters across tabs, save presets, choose delivery targets for streaming or broadcast, and create their own targets. A command-line tool analyzes individual files or album folders and can produce reports or CSV output. VST3 and Audio Unit plugins send measurements and DAW transport position to the app. An AAX plugin is in the plugin archive but is not signed for a released Pro Tools version. A tablet on the same network can display the app's published measurements over Wi-Fi. The maker says measurements stay on-device and audio is neither stored nor transmitted. The remote display link has no encryption or authentication. The app runs on Android, iOS, Linux, macOS and Windows.
Room EQ Wizard
Room EQ Wizard (REW) is measurement and analysis software for working on listening-room, studio, and home-theater acoustics, speaker and subwoofer placement, audio-chain performance, and EQ. It measures frequency response and distortion with logarithmic swept sine signals and supports USB or analog measurement microphones and SPL meters. Its views include impulse and step responses, energy-time curves, spectral decay, waterfalls, spectrograms, reverberation times, distortion, phase, group delay, and real-time analysis. REW's signal generator produces tones, sweeps, bursts, and noise, among other signal types, with WAV export. Its EQ tools identify response peaks, assign filters, optimize filter parameters, and display predicted EQ waterfalls live. The Room Simulator supports up to eight subwoofers. The free plan includes single-channel capture, measurement, real-time analysis, and EQ tools. REW runs on Linux, macOS, and Windows.