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Audio authenticity: why band-limits and discontinuities matter

Methodology · 15 Jan 2026 · by CanonProof Team

Audio authenticity: why band-limits and discontinuities matter

Audio authenticity is rarely one “smoking gun”. Instead, multiple weak signals combine to build confidence.

Two useful MVP indicators

  • Band-limit ratio: synthetic or recompressed audio often shows unnatural frequency roll-offs.
  • Discontinuity score: abrupt spectral/energy changes can indicate splicing, edits, or stitching.

CanonProof treats AI opinions as advisory signals — they never decide the outcome alone. The outcome comes from explainable indicators and scoring.