Documentation
RBAnalyzer manual
RBAnalyzer is a real-time room-acoustics analyzer plug-in. Load it on a track, feed it audio, and it reports what your room is doing — reverberation, early reflections, noise, and spectral balance — while you listen.
Formats and requirements
- Formats: VST3 and AU.
- Systems: macOS / Windows.
- Version: 0.0.2.
Using RBAnalyzer
- Load it. Insert RBAnalyzer on the track or bus you want to measure, just like any other plug-in.
- Feed it audio. Play back a reference or record through the track. The analysis updates in real time as audio passes through.
- Read the room. Watch the metrics and their verdicts. A compact history strip keeps the last five completed analyses (id, RT60, and SNR), newest first, so you can compare positions and setups.
Metrics reference
Metrics with a verdict are colour-coded good / acceptable / poor in the plug-in. The verdict thresholds are listed below. Informational metrics are shown for context, without a verdict.
| Metric | What it means | Verdict |
|---|---|---|
| RT60 (ms) | Estimated reverberation time — how long sound takes to decay 60 dB after a sound stops. | Ideal < 300 ms · Acceptable 300–500 ms · Too much reverb > 500 ms |
| Early reflections (0–1) | How strongly the room reflects in the first 5–50 ms after a sound. | Good ≤ 0.2 · Moderate 0.2–0.4 · Strong > 0.4 |
| SNR (dB) | Signal-to-noise ratio. | Clean ≥ 40 dB · Usable 25–40 dB · Noisy < 25 dB |
| Clipping | Whether the input clipped during the analysis window. | OK not clipped · Clipping! clipped |
| Noise floor (dB) | Estimated background noise level. | Context only — no verdict |
| Spectral flatness (0–1) | How noise-like (flat) versus tonal (peaky) the spectrum is. | Context only — no verdict |
| Spectral centroid (Hz) | The spectrum’s centre of mass — roughly, perceived brightness. | Context only — no verdict |
| 7-band energy (%) | Share of total energy across sub / bass / lo-mid / mid / hi-mid / presence / air bands. | Context only — no verdict |
| Input levels (dBFS) | RMS and peak levels of the input. | Context only — no verdict |
Readings are estimates, not certified measurements — use them to compare setups and guide changes, not as absolute values.