KERN Audio has released Check, a free real-time mono compatibility analyzer that shows exactly which frequencies collapse when summed to mono.
Unlike traditional correlation meters that display a single number, Check provides a spectral curve across 40 ERB-spaced frequency bands, making it possible to identify whether bass, mids, or highs are causing mono compatibility issues.
Features:
- Spectral correlation curve across 40 perceptually-spaced bands.
- Bass-weighted mono score (low frequencies weighted 3x).
- FOCUS control to isolate low, full, or high frequency ranges.
- MONO and SIDE monitoring for auditioning mono collapse.
- Zero latency, under 2% CPU.
Check uses the same ERB analysis engine as KERN’s paid plugins (Smooth, Warm, Wide). It was built to address a universal need in music production – mono compatibility checking essential for club systems, phone speakers, and Bluetooth playback.
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