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Voice enhancement

The goal in forensic audio enhancement is to audibly discern what is being said by certain individuals so that audio, previously obscured by noise, can be heard and understood. 

During an audio recording its possible that environmental and digital noise can inhibit the listener from understanding the audio information captured. In order to help our clients, we can attenuate unwanted noise by using advanced adaptive filters and processing techniques to bring inaudible information out of the recording.

Authentication of audio recordings

The goal of forensic audio authentication is to establish if the recording is consistent with the original. Requests for authenticity examinations, involving investigative matters, can originate from private individuals, law enforcement or private investigative firms.

Authentication is the process of substantiating that the audio information in question, is a complete and accurate representation of what it purports to be. A variety of techniques are used in conjunction, according to best practices, that allow the examiner to draw a scientific conclusion. Typical cases include…

  • A recorded conversation has unexplained visual or aural dropouts.
  • Lack of synchronization between the audio and video information.
  • Discrepancies between the on-screen date/time information.
  • Visual or aural inconsistencies within a recorded interview. 
  • Suspicious or anonymously submitted recordings.

Digital media recovery

It’s possible that video and audio recordings can suddenly become inoperable or unusable. There are several reasons why a file may become corrupted including saving issues or incomplete data transfers. It’s possible to recover information using advanced file carving techniques. 

While we cannot guarantee that everything might be recoverable our team is happy to provide advice and direction on a case by case basis. Physical damage and other environmental factors can play a large role in determining if media is recoverable. 


A process of converting recorded speech into written word for any investigation or courtroom proceeding.  

The main goal of audio transcription is to provide the highest accuracy of spoken word within the recording. Often times a combination of enhancement work is needed to ascertain what is being said. All speech is transferred into a report and can be used for clarification during trial.