Improve audio recordings through enhancement techniques such as removal of tones, ambient noise reduction, de-reverberation, system noise removal, amplitude correction.
Likelihood as to whether the audio recording is original or has been manipulated in any manner. Authentication can determine the provenance of the image (was it was recorded with the device it was alleged to have been recorded with), whether any post processing digital manipulation has taken place and/or whether the recording was captured at the alleged time and date. We are one of only two Forensic labs within the UK with an ENF database and strong links to ENF database collections within the US.
Converting audio and DAT cassettes and to a high quality digital format allows for playback on non-specific players such as VLC and Windows Media Player.
Extraction of audio data from devices while following best practices to maintain the chain of custody.
Professional quality audio clips of interest in sequence, including such processes as level balances, transitions, reduction of playback speed and looping.
Isolation or redaction of words or sentences for use of evidence within a courtroom.
Providing an expert transcription through listening after enhancement with variations in playback speed and studio grade playback equipment.
Providing expert testimony in the courtroom regarding the results of a forensic examination and assist in the questioning of testimony provided by the opposing expert witness.