ABSTRACT
Forensic signal processing uses electronic equipment to examine and process signals reproduced from electronic recording media, either audible or visual.
Forensic signal processing has been in existence for some years; however, by comparison to traditional forensic science fields, such as fingerprints, it is seen as a relatively new field. In the early years, signal processing services were predominantly used by the covert or intelligence areas. The security issues of those areas required the field to maintain a very low profile in order to protect against countermeasures. Today, signal processing has become more widely known and accepted because of the wider use of similar technologies in other electronic equipment, such as telephone and satellite systems.
