Managing Partner Herbert Joe, M.A., J.D., LL.M., B.C.F.E., C.F.C., D.A.B.F.E., D.A.B.L.E.E., F.A.C.F.E.  Attorney Joe has 5 degrees, including 3 science degrees (B.S., M.A., M.S.) and 2 law degrees (J.D., LL.M.). His 34-year involvement in the area of forensic audio/video includes expert testimony in state and Federal courts in civil and criminal cases throughout the U.S., as well as overseas, giving regional, national and international (many CLE-approved) presentations, conducting research and authoring peer-reviewed publications and being interviewed or consulted with by various news and entertainment entities domestically and overseas.


Senior Partner Prof. Al YONOVITZ, Ph.D.  His 43 years of teaching and research include appointments at the Speech and Hearing Institute, Graduate School of Biomedical Sciences, and the School of Public Health at the University of Texas Health Science Center, Houston; Baylor College of Medicine; Department of Biomedical Engineering at the University of Houston; Conley Speech and Hearing Center, University of Maine; Menzies School of Health Research; consultant to the Veterans Administration Hospital, Houston; Director of the Electronic Prosthesis Laboratory, Mansfield Training School; Research Champion, School of Health Sciences, Charles Darwin University; Dept. of Biomedical Engineering, University of Houston; Naval Submarine Medical Research Laboratory, Auditory Branch, Groton, CT; former member of the certification and standards committee of the International Association of Identification (IAI). 

Dr. Yonovitz has authored over 100 publications or paper presentations, as well as over 30 grants. He is currently a Professor of the Speech and Hearing Sciences, Dean of Research Facilitation and former Chair of the Department of Communicative Sciences and Disorders at the University of Montana. Former federal clients include the Federal Bureau of Investigation (FBI), the Drug Enforcement Administration (DEA), the Internal Revenue Service (IRS), the Department of Alcohol, Tobacco and Firearms (ATF) and the U.S. Customs.

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Yonovitz & Joe, L.L.P., a registered partnership based in Dallas, Texas, is a team of forensic audio/video analysts, experts and consultants. They have been forensic audio/video experts for over sixty combined years. Their diverse legal, forensic, academic, research and clinical experience includes scientifically objective, verifiable and generally accepted analyses of audio and video evidence including, but not limited to, the forensic authenticity analyses of audio or video evidence, voice/speaker identification or elimination via aural-acoustic-spectrography, digital enhancement of audio or video recordings, transcription development and verification, etc. (For a copy of the company résumé, please click here.)

They have been retained in thousands of criminal, civil and administrative cases involving thousands of recordings throughout the U.S., Canada, Mexico, the United Kingdom, India, Sri Lanka, Australia, Singapore and the United Arab Emirates, and have testified in state and Federal courts in civil, criminal and administrative matters throughout the U.S., as well as overseas. They also give regional, national and international presentations (many CLE seminars) and co-author peer-reviewed publications.