Dusk Audio Spectrum Analyzer vs Open Audio Analyzer
Dusk Audio Spectrum Analyzer
duskaudio.com
Open Audio Analyzer
open-audio-analyzer.comSide by side
| Figure | Dusk Audio Spectrum Analyzer | Open Audio Analyzer |
|---|---|---|
| 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 | 1 | 2 |
| Spec score · Audio Analysis Software | 8.0 (#15) | 8.6 (#5) |
| Maker | Dusk Audio describes itself as a solo endeavor; the opened About page does not state headquarters or a founding date. | The site identifies Jonas Grunau as its publisher and gives Kirchheim, Germany as the address. |
| Purpose | Spectrum Analyzer is a real-time measurement plugin for viewing frequency spectrum, loudness, true peak, stereo correlation, and K-System headroom. | Open Audio Analyzer is a free, open-source loudness and spectrum analyzer for live audio and audio files. |
| Support | Users can report bugs and suggest features through GitHub Issues; financial support is optional. | Technical support is directed to the public GitHub issue tracker, with documentation covering installation, metrics, keyboard controls, wire protocol and building. |
Plans
In their own words
Dusk Audio Spectrum Analyzer
Dusk Audio Spectrum Analyzer is a free, real-time plugin for measuring frequency spectrum, loudness, true peak, stereo correlation, and K-System headroom. Its FFT display offers 2048, 4096, and 8192 sample resolutions, with adjustable smoothing and slope and an optional peak hold. Loudness readings cover EBU R128 Momentary, Short-term, Integrated, and Loudness Range measurements. True peak detection follows ITU-R BS.1770-4 with 4x oversampling; the stereo correlation meter runs from -1 to +1. Channel views include Stereo, Mono, Mid, and Side. The manual describes it as a pure analyzer that leaves the audio path unchanged, so output matches input regardless of settings. It requires a 64-bit DAW supporting VST3, LV2, or AU. Listed formats are Linux VST3 and LV2, Windows VST3, and macOS VST3 and AU. Minimum systems are Debian 12+, Ubuntu 22.04+, or Fedora 36+ on Linux, Windows 10+, and macOS 10.13+. The plugins are free and open source, with source code on GitHub. The listed price is free.
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.