Audio Video Forensic Expert Witness Durand Begault

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Durand R. Begault received a PhD in Computer Audio from UC San Diego in 1988 and an MFA from Mills College in 1981. He has been associated with the Audio Forensic Center and Charles M. Salter Associates, Inc. since 1996 and has worked as an expert witness, legal consultant, and acoustical consultant on a variety of audio-related cases since 1988. Dr. Begault also holds a research position at NASA Ames Research Center and is an adjunct faculty member at McGill University. He is the author of several U.S. patents and is qualified as an expert witness in both Federal and State Courts. Dr. Begault has testified in over 40 cases on a variety of audio technology and forensic audio-related cases.

Areas of Expertise:

Audio Technology Patent / Intellectual Property Analyses
Forensic Audio and Video Tape Examination / Authentication
Analysis of Speech, Alarms, Warning Signal Audibility
Voice Identification and Elimination
Analysis of ‘Ear Witness’ Testimony
Enhancement of Speech from Noisy Audio / Video Tape Recordings
Music Copyright Infringement and Musicological Analysis
Gunshots
Acoustical Test and Measurement - Environmental Sound
Noise Exposure
Software / Hardware Black Box Testing for Infringement
Videotape Image Enhancement
Analysis of Digital Recordings

Please contact the Marketing Department at Charles M. Salter Associates, Inc./Audio Forensic Center for Dr. Begault’s current CV.

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8/30/2017 · Audio Forensics

Forensic Sound Analyses of Cellular Telephone Recordings

By: Dr. Durand R. Begault

Recordings involving cellular telephones or personal digital assistants (“PDAs”) are increasingly the source evidence in audio forensic examinations, compared to recordings originating with other devices such as hand-held digital recorders. On modern PDA cellular telephones recordings can be made either directly to the telephone or transmitted as voice mail messages. The current investigation focuses on differences in the two types of recordings in terms of dynamic range and linearity of levels. Such information can be important for characterizing the distance of sound sources relative to the microphone and are important for understanding transformation of recorded speech and non-speech sounds.

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3D Sound for Virtual Reality and Multimedia

Durand R. Begault, PhD

Written by an author with expertise in both theory and applications, 3D Sound for Virtual Reality and Multimedia provides readers an essential technical foundation in sound and virtual reality. The book covers components of spatial auditory displays; psychoacoustics of spatial hearing; what sounds are appropriate to spatialize; applications to human-machine interfaces (including virtual reality and multimedia); computer music; and room acoustics.

Related areas of expertise

Acoustics - Vibrations Audio & Sound Audio Evidence Documents / Handwriting / Recordings Examination & Analysis Intellectual Property Music Speech & Voice Technology Video / Visual Evidence Voice Applications

Acoustics & Vibrations Engineering Audio (Tape) Recording & Authentication Demonstrative Evidence / Trial Presentations Environmental Noise Studies Intellectual Property Copyrights Patent Infringement / Application Telecommunication / Communication Technology Video Recording & Authentication