Audio Evidence
Audio evidence can include but is not limited to confidential informant recordings, confession recordings, telephone intercept, voicemail, and 911 calls. The goal of the forensic examiner is to be sure…
Audio Evidence and State Public Defenders
I have a great deal of respect for State Public Defenders. They are lawyers who practice law for people who cannot otherwise afford legal assistance. The State Public Defender coordinates…
The Noise Floor: A Forensic Aid for Audio Authentication and Voice Identification
Audio authentication and voice identification requires that a forensic expert examine three critical aspects of an audio recording before beginning any forensic process. Whether it be analogue or digital audio…
Clarification of Audio Recordings for Authentication
All recordings--both digital and analog--have a noise floor. The term originated when manufacturers of analog audio recorders referred to the extraneous noise that their machine created in addition to the…
Equalization for Audio Clarification
Equalization settings can be adjusted to help the forensic expert recover lost or poorly recorded audio. This blog post covers basic audio clarification. The sound spectrum is measured in frequencies.…
Voice Identification in a Digital World
Audio forensic experts have more voice identification cases today than ever before. Legal cases have more audio evidence than ever before, and voice identification has become a critical component to…
The Value of an Expert Witness
An expert witness is a person who by virtue of education, training, skill, or experience, is believed to have expertise and specialized knowledge in a particular subject. His or her…
Noise Reduction for Sound Clarification
The first step when restoring audio is to remove background noise. More often than not, a recording in need of sound clarification or restoration has background noise covering the sounds…
Voice Identification: Yep It’s Him, Thomas Pynchon
Yep It's Him, Thomas Pynchon By Steven Kurutz Last Tuesday, long-suffering fans of the reclusive writer Thomas Pynchon received a double gift. Pynchon's latest book, "Inherent Vice," a stoned-out detective…