Validated automatically
Known delay recovery, inverted polarity, noisy correlation limits, repeated-run jitter, DC offset, balance, crosstalk, dropout, and experimental THD fixtures.
Loopback validation
Automated checks use known synthetic returns. Physical multi-browser and multi-interface validation remains outstanding.
Withheld when invalid
Missing electrical-path confirmation, clipping, weak correlation, or unsupported stereo capability withhold affected metrics.
Release gate remains
Physical multi-browser and multi-interface comparisons require real hardware runs. They are not represented as complete here.