The authentication of digital audio evidence verifies the integrity of an audio recording for use in court. Establishing a solid chain of custody is the first step in the authentication…
As audio video forensic experts, we are trained to authenticate digital audio evidence. This is the forensic process of taking inventory on a number of meta data details. Experts also listen critically and note all anomalies heard in an audio recording.
When we authenticate digital audio evidence, we learn a lot about that audio recording. We answer the question ‘does this audio recording have integrity’?
Many recordings wind up in court that are not authentic. It is crucial for all digital audio evidence to be authentic. Lack of authenticity is lack of integrity. It is very easy for an individual to modify or edit an audio recording and have that edit go unnoticed.