Audio MIA framework

Description

Speech and music MIA combining acoustic loss-curvature, mel-spectrogram divergence, and waveform-level NN-distance.

Technical signature

in: (audio_model, clip) → out: { mia_score, per_segment[] }

Adversarial robustness

Robust to MP3/Opus compression down to 64 kbps; degrades on time-stretch ±10%.

Daubert eligibility

Method is peer-reviewed, has published error rates, and is reproducible from the chain-of-custody hash. Eligible for Tier-A admissibility packaging. Ultimate admissibility is the court's determination.