Audio Enhancement & Digital Media Authentication

Specialties & Experience of this Expert Witness

Additional Information

Mark Scetta is an independent forensic audio examiner providing audio clarification, enhancement, and authentication for criminal defense, civil litigation, and investigative matters. Over 20 years of professional audio engineering experience in film and broadcast post-production, dialogue restoration, noise reduction, sound recording, audio mastering for broadcast, audio electronics, studio acoustics, and corporate media production forms the technical foundation for evaluating audio evidence in legal disputes. Common case scenarios include bodycam recordings where speech is unintelligible, dashcam footage with contested statements, 911 calls obscured by background noise or emotional distress, surveillance audio from buses or workplaces, jail telephone calls requiring clarity on specific phrases, interrogation recordings with questions about timing or edits, gunshot sequences across multiple video sources, voice comparisons between questioned recordings and known exemplars, and cell phone audio with disputed authenticity. When audio is unclear, edited, or challenged, the analysis involves professional noise reduction, spectral editing, and dialogue restoration techniques to extract contested speech, environmental context, and background conversations. When a recording's integrity is in question, the examination includes metadata verification, file structure analysis, encoder history review, and detection of gaps, splices, re-exports, or timestamp inconsistencies. Retained in criminal defense matters including police use-of-force investigations, assault cases with hate-crime allegations, and homicide depositions. Retained in civil matters including personal injury bus surveillance, municipal police-shooting investigations, and independent voice identification engagements. Prepared forensic reports and rebuttal analyses for state and federal court proceedings conducted in accordance with Scientific Working Group on Digital Evidence (SWGDE) best practices, employing structured documentation, contemporaneous logging, and chain-of-custody protocols designed for Daubert and Frye admissibility. Before forensic work, did audio post-production and audio mastering in the broadcast entertainment industry. Designed reference-grade monitoring environments and studio acoustics for small professional audio facilities. Serviced and built tube and solid-state audio electronics. Taught advanced media production as Adjunct Faculty at New England Institute of Technology. Authored Gardner's Guide to Audio Post-Production, a 300-page technical reference on applied sound engineering. Professional audio clients included The Food Network, NCAA, Yahoo! and national corporate campaigns requiring broadcast-grade audio quality. Member of the High Technology Cyber Investigation Association (HTCIA) and Audio Engineering Society (AES). Government-registered vendor. Completed SEAK expert witness training (2025). FCC-licensed amateur radio operator. B.A. in Film Studies from Rhode Island College. Available for criminal defense, plaintiff and defense civil litigation, insurance investigations, and private consultations in all jurisdictions. Report Writing & Rebuttal Experience | Criminal & Civil Matters | Plaintiff and Defense Contact: 401.753.3775 | Mark@StellarAudioForensics.com