Audio Authentication and Visual Inspection
Sound waves can tell us a lot about a recording. Like metadata, the visual elements of a sound wave can expose the characteristics of an audio recording without even having to listen to it. These characteristics can be important, especially when …Read More
Bell Labs was the first to discover that spoken word patterns and sounds could be identified and characteristics examined to identify the individual who made them. This has been a very important advancement in forensic science because the potential to assist law enforcement is well …Read More
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 recording, an audio forensic expert should inspect the consistent characteristics of the sound wave formations; …Read More
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 desired recorded audio signal.
Often a background noise constitutes most of the audio recording and covers …Read More