Expertise

Forensic Speaker Comparison - the comparison of voice and speech patterns across recordings, in order to assess the possibility of the speakers being the same. (See www.forensic-speech-science.info for a discussion of how results are expressed.)

Authentication of Recordings - the investigation of recordings for evidence of editing and tampering. Also, determination of the circumstances in which a recording was made - for example, whether or not it was recorded on a particular machine.

Sound Enhancement - the electronic processing of recordings to remove extraneous noise and improve the intelligibility of speech.

Transcription of Evidential Recordings - verbatim transcripts produced for court purposes.

Questioned Utterance Analysis - phonetic and computer-based examinations of recordings for evidence of what was said at particular points.

Speaker Profiling - the analysis of recordings of unknown speakers for information about regional and ethnic background and other aspects of identity available from the speech signal.

Acoustic Investigations - the analysis of recordings to determine the source or location of sounds, and the investigation of sound propagation at crime scenes.

Voice Line-Ups - advice on and critiques of the validity of voice identification parades and claims concerning voice recognition by lay-witnesses.

Linguistic Analysis of Documents - comparisons of patterns of vocabulary and grammar, in order to determine the likelihood of common authorship.

Corporate Security Packages - for details of these and other confidential or sensitive matters please contact us.

Other Services

We are also able to retrieve high-quality copies of recordings for evidential purposes from mobile telephones, voicemail services, digital dictaphones, digital answer phones and other devices. We can also transfer recordings to formats such as audio CD and provide edited compilation recordings.

Should you have any queries or just wish to discuss the ways we might assist you, please do not hesitate to contact us or arrange for a visit.