Correlometer
by Voxengo · Utility · Multiband correlation meter
Not rated yet
A free multiband stereo correlation meter that shows phase correlation in 4 to 64 frequency bands instead of one broadband reading.
A side-chain input lets it compare two separate tracks, which helps with aligning kick and bass, or mic and DI pairs.
Best for: Mix Bus, Mastering, Drums, Bass. Genres: all genres.
Keywords: metering, bass, multi-band, sidechain input, free, kick, drums, low latency, mono-compatible, full mix, resizable UI, bus processing, CPU-light, electric guitar, enhancement, mastering, mix bus, mixing, simple, spectral, surgical, utility, zero-latency.
What it does
Correlometer is a free analog-style multiband correlation meter based on the meter in Voxengo's PHA-979 phase-alignment plugin. It shows where in the spectrum out-of-phase content sits, which a single broadband meter can hide.
- 4 to 64 bands: display up to 64 individual spectral bands, with an adjustable band quality factor to set how selective each band is.
- Adjustable averaging: set the averaging time of the correlation estimator.
- Side-chain input: measure correlation between two separate tracks, such as bass and kick drum, guitar mic and DI, or two-mic stereo recordings.
- Mono-compatibility check: spot mid and high frequency phase problems that are hard to hear but reduce mix clarity.
- Lightweight: zero latency, all sample rates, resizable HiDPI interface and color schemes.
Correlometer is free.
When to use it
Correlometer only measures, unlike Waves InPhase LT and Universal Audio's Little Labs IBP Phase Alignment Tool, which actually fix phase between sources, and Eventide Precision Time Align, which shifts timing. But it is free and shows far more detail across the spectrum than a single correlation needle. It pairs well with any of those, or with Voxengo SPAN for general analysis.
- Best for: checking mono compatibility, finding phase problems in stereo recordings, and aligning kick/bass or mic/DI pairs via side-chain.
- Genres: any; it's a general metering tool.
- Look elsewhere if: you want the plugin to correct the phase for you; use InPhase LT or the IBP tool.
- Standout: per-band correlation readings from 4 to 64 bands, with a side-chain input.
What producers say
KVR users rate it 4.67/5 across three reviews, praising how quickly it pinpoints phase issues.
- KVR user (2019): said it "lets me pinpoint phase problems immediately" and that they would have paid for it.
- KVR user (2022): called it "Another so helpful and free tool from Voxengo" and liked the per-band meters and custom colors.
- KVR user (2019): gave 4/5, found it "simple and straitforward" for checking phase alignment of vocals and drums.
Where to buy
- Voxengo: Free
Tutorials and reviews
- Voxengo Correlometer 1.4 multi-band correlation meter plugin
- Mixer's Log #24: Voxengo Correlometer
- [Mixing Tips] Vst free giúp check phase (Voxengo Correlometer)😍
- FREE Voxengo Multiband Correlation Meter-Medição de correlação - Detector de problemas de fase e +++
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