Delta

Delta is a phase-cancellation null-test / difference-checker plugin. Feed two versions of the same audio (a re-render, a bounce after a plugin change, an A/B of a master) into the main input and sidechain, hit Align, and it finds the sample-accurate timing offset between them automatically via cross-correlation, then outputs only the difference. If the two sources are identical, the output is silence — a perfect null. Anything left over is real, audible, and shown live on a scrolling spectrogram with peak-hold and a dB colour legend, so you can see exactly which frequencies and moments the two sources differ at. Offline file-comparison mode also available (no DAW routing required). Free during the beta period.