Based on my 28+ years working with the human voice for identification purposes, I have been asked on several occasions to determine a person?s identity based on a voice sample when an exact exemplar was not available. I call this nontraditional voice identification.? I do …Read More
How reliable are audio forensic procedures in the legal system? A student recently asked me that and asked about some of the ins and outs of a career in audio forensics. The student’s specific questions are below and are followed by my answers.
1. How often …Read More
Since I began my career as an audio forensic expert 28 years ago, I have been retained on two drug trafficking cases where the US prosecutors office was trying to convict based on five words spoken during a confidential informant recording.
I have been on both …Read More
Today, more than any other time in the history of the United States and the world, we find our court systems full of digital audio files in the form of evidence. As an audio forensic expert, I have testified in many cases in the United …Read More
As an audio forensic expert who conducts voice identification, I receive calls from people around the world asking about voice identification. The American Board of Recorded Evidence provides voice identification standards that help me determine if I can identify a piece of audio evidence.
Some of …Read More
Last Monday I did another radio interview for Elvis Express Radio. Joe from the network called me about 10 am EST and asked how I knew this song had Elvis Presley singing.?I explained to him that I did forensic voice identification and compared the vocal …Read More
? Try your hardest to create your exemplar using the same equipment that made the original recording. Phone = Phone. CI Digital = Digital Olympus.
? When creating your exemplar, have a third party non-biased impartial witness to confirm your identity. That way, your voice sample …Read More
When I first began my career as an audio engineer, we used analogue recording tape in the form of reel-to-reel, cassette and eight tracks. The tape for reel- to- reel moved across an erase head, then a record head then playback head on professional recorders. …Read More
Recently I was asked to listen to 23 phone intercept recordings and determine if any of the voices in these conversations were repetitive. As an audio forensic expert, when I conduct a voice identification test, I have to have an exemplar or voice sample of …Read More
An audio exemplar is an audio recording that is created by the audio forensic expert and will be used as a comparison to the evidence for the purpose of identification. Unlike the original evidence, the exemplar is created in a controlled environment. If the original …Read More