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.
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.
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.
Dr. John Strawn, Ph.D. (Stanford, 1985) has served as testifying expert in patent and trade secret cases, conducted extensive prior art searches, and written expert reports, working for both plaintiffs and defendants. He has conducted software analysis of thousands of pages of source code. Dr. Strawn has over 30 years experience in software development (assembly language, Fortran, C, C++, Java, HTML, XML). He is experienced in digital signal processing, especially for audio and music, including audio compression such as MP-3. As an employee and as an independent consultant he has worked on teams in large and small companies on cutting-edge technology. Having been a Fulbright scholar in Germany, he can easily work with source material in German. He is an accomplished public speaker and has published extensively.
Testifying Experience: 19 depositions and 3 trials to date. includes Lucent v. Microsoft (San Diego, CA, February 2007).
In public talks about audio, one often sees a timeline in which "major changes in the audio industry" are said to occur every 10, 25, or perhaps 50 years. Rather than searching for periodicity in a one- or two-dimensional timeline, in this article it will be more helpful to start out by enumerating some of the multidimensional axes along wchich change occurs
Bryan Neumeister, CEO of USA Forensics, is a court certified Audio and Video Forensic Expert. Mr. Neumeister has over 34 years of professional experience Clarifying Videos, Still Pictures (film and digital), and Audio Recordings so that jurors can better see and hear evidence. With studios and forensic equipment more advanced than most Federal Agencies, he is able video to large format still pictures for use as Exemplars.
Mr. Neumeister presents high resolution video in court to explain Procedure or Evidence of Tampering to juries. Using 3D Sonograph and Spectrograph printouts, he can also spot and visually explain the “altering of tapes." His Video Recreations have been honored at the Canne Film Festival and have received 39 Emmy Awards from the National Association of Television Arts and Sciences for Technical Excellence.
Mr. Neumeister has worked on over 200 Forensic Cases since 2010. His non-military court cases include: RICO, Murder, Murder for Hire, Fraud, Robbery, Armed Robbery, Assault with a Deadly Weapon, Arson, Kidnapping, Bank Robbery, DUI, DWI, Civil Cases...etc. He is certified in Military, Federal, State, Civil, and Aviation court.
Large Cases include:
US Government vs. Charles Keating - Retained as Video Expert
State of Arizona vs. Jodi Arias - Retained as Audio and Photography Expert
US Grand Jury: The Hope Steffy Case – Video Expert
US Government vs. Charles Keating III - Retained as Video Expert
US Federal Government vs. State of AZ. - King Case as Video Expert
We've all seen the TV crime shows where the forensic technician opens the grainy surveillance, then zooms in on a tiny face, license plate or scrap of paper, hits the enhance button and, magically, the image becomes sharp and clear (accompanied by appropriate background music).