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Information × Registration Number 0207U004054, 0105U005473 , R & D reports Title The methodical recommendations on establishment of telephone number of subscriber of flow line on the sound signals fixed on a phonogram popup.stage_title Head Shemetova Nadezhda Alexandrovna, Registration Date 25-01-2007 Organization Scientific Research Institute of Forensic Sciences, Kharkiv popup.description2 Research objects are the sound signals of set of telephone number, fixed on phonograms. The purpose of work is development of methodical recommendations, both theoretical positions of conducting of researches and detailed algorithm of research of the sound signals of telephone number, fixed on a phonogram, are expounded in which, with the purpose of determination of this number. Research methods: vehicle (or instrumental) researches, peak analysis, spectral-temporal analysis, method of equation, mathematical methods of theory of chances and mathematical design. In work there are the developed recommendations of relatively decision of question of establishment to the telephone number after the sound signals fixed on a phonogram, with the use of widespread programmatic facilities of research of sound, on the base of spectral analysis of sound signals in the "hand" mode. With the purpose of automation of process of establishment of telephone number on the sound signals fixed on a phonogram, the programmatic complex DTMF Expert" after decoding of the DTMF signals, which enables to recognize signals fixed with the high level of obstacles, is developed. Product Description popup.authors popup.nrat_date 2020-04-02 Close