v1.1.0 - Real UMIK-1 in-situ calibration validation

Adds a single continuous, unscripted in-situ co-location session between one Acust device and a calibrated miniDSP UMIK-1 reference microphone, time-aligned to 1-second bins by cross-correlation.

Headline result: Pearson r = 0.87 between the device's calibrated dashboard reading and the UMIK-1 reference; mean bias +8.64 dB (device reads high); RMSE 10.15 dB. An in-sample, session-specific linear correction reduces the residual to 2.40 dB MAE / 3.53 dB RMSE.

Scoped explicitly as one device, one room, one session, ambient (not swept-tone) stimulus - not a controlled multi-level laboratory calibration campaign. See docs/privacy_and_limitations.md for full detail.

See RELEASE_NOTES.md for the complete changelog.

acoustic-exposure-dynamics-dataset

v1.0.0

Release v1.0.0