REFERENCE

Controls

• ListenTrack / Reference — What you hear: the Track (your mix, channels 1/2) or the Reference (channels 3/4); the switch crossfades over 10 ms.
• Level MatchOff / On — Level Match: plays the reference at your mix's short-term loudness, so the comparison is about tone and balance, not volume.
• Trim−12 to +12 dB — Extra gain on the reference (-12 to +12 dB), on top of the match.
• MonitorStereo / Mono / Side — Monitor: Stereo, Mono (both channels summed) or Side (the difference only), for both sources.

Best uses

• A/B a mix against a commercial track at the same loudness
• Check a master's tonal balance and width against a reference
• Compare two versions of a mix routed to the same track
• Mono and side checks of mix and reference with one switch

Properties

Both inputs are K-weighted (ITU-R BS.1770) and measured as short-term loudness (the last 3 s, every 100 ms). With Level Match on, the reference's gain moves a tenth of the way to the difference every 100 ms (about a second to settle), within ±24 dB, and holds while either source is below -60 LUFS; Trim is added. Listen crossfades linearly over 10 ms. Monitor folds after the switch. The interfaces show both loudnesses, the reference's gain, each source's stereo correlation (averaged over about 3 s) and both spectra (each bin averaged over about a second, the reference at its played gain). No latency, no Rack module (it needs a second stereo input).

Formats

• JSFXJSFX for REAPER, with REAPER's own sliders
• GFXJSFX GFX for REAPER, with its own interface
• VST3VST3 for any DAW
• CLAPCLAP for any DAW

Factory presets

Reference Matched · Reference Raw · Mono Check · Side Check · Reference Mono Check

Try it