Questioned content analysis involving acoustic investigations of speech segments and higher order phonetic features is used where it is very important to establish what has been said in a specific, localised area of a recording.
If it is not possible to transcribe the content of a recording just by careful and repeated listening, our analysts use computer-based spectral analysis to provide a suggested interpretation or to provide support for one of a number of competing interpretations. By analysing the specific sounds with reference to a speaker’s overall speech patterns, it is often possible to determine what was said.
J P French Associates have undertaken questioned content analysis in a number of cases, some of which are illustrated in our cases page.
Other terms include: questioned utterance analysis, disputed utterance, disputed content analysis