spectrograph

spectrograph
Voice print analysis is a method of identification based on the comparison of graphic representations or "spectrograms" made of human voices. Such method utilizes a machine known as a "spectrograph" which separates the sound of human voices into the three component elements of time, frequency and intensity. Using a series of lines or bars, the machine plots the variables across electronically sensitive paper and the result is a "spectrogram" of the acoustical signal of the speaker, with the horizontal axis representing the time lapse, the vertical axis indicating frequency, and the thickness of the lines disclosing the intensity of the voice. People v. Kelly, 17 Cal.3d 24, 130 Cal.Rptr. 144, 147, 549 P.2d 1240.
An increasing number of courts are permitting the admissibility of spectrograph results into evidence to identify voices. United States v. Bailer, C.A.W.Va., 519 F.2d 463.

Black's law dictionary. . 1990.

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  • Spectrograph — Spec tro*graph, n. [Spectrum + graph.] (Physics) (a) An apparatus for photographing or mapping a spectrum. (b) A photograph or picture of a spectrum. {Spec tro*graph ic}, a. {Spec tro*graph ic*al*ly}, adv. {Spec*trog ra*phy}, n. [Webster 1913… …   The Collaborative International Dictionary of English

  • spectrograph — (n.) 1884, from SPECTRO (Cf. spectro ) + GRAPH (Cf. graph). Related: Spectrographic …   Etymology dictionary

  • spectrograph — [spek′trōgraf΄, spek′trōgräf΄] n. any of various instruments that record various types of spectra, esp. one that uses a camera to record a spectrum of light spectrographic adj. spectrographically adv …   English World dictionary

  • spectrograph — /ˈspɛktrəgræf/ (say spektruhgraf), / graf/ (say grahf) noun 1. an apparatus for making a spectrogram, as a speech spectrograph, a mass spectrograph, etc. 2. → spectrogram. –spectrographic /spɛktrəˈgræfɪk/ (say spektruh grafik), adjective …  

  • spectrograph — spectrographer /spek trog reuh feuhr/, n. spectrographic /spek treuh graf ik/, adj. spectrographically, adv. spectrography, n. /spek treuh graf , grahf /, n. 1. a spectroscope for photographing or producing a representation of a spectrum. 2. See …   Universalium

  • spectrograph — spektrografas statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas spektrui gauti ir jam registruoti fotografine plokštele, elektroniniu optiniu keitikliu, vidikonu arba diodų matrica. atitikmenys: angl. spectrograph vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • spectrograph — spektrografas statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas tiriamosios medžiagos spektrui gauti ir registruoti. atitikmenys: angl. spectrograph vok. Spektrograph, m rus. спектрограф, m pranc. spectrographe, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • spectrograph — spektrografas statusas T sritis chemija apibrėžtis Prietaisas tiriamosios medžiagos spektrui gauti ir registruoti. atitikmenys: angl. spectrograph rus. спектрограф …   Chemijos terminų aiškinamasis žodynas

  • spectrograph — spektrografas statusas T sritis fizika atitikmenys: angl. spectrograph vok. Spektrograph, m rus. спектрограф, m pranc. spectrographe, m …   Fizikos terminų žodynas

  • spectrograph tube — spektrografo vamzdis statusas T sritis fizika atitikmenys: angl. spectrograph tube vok. Spektrographenröhre, f rus. спектрографическая трубка, f pranc. tube de spectrographe, m …   Fizikos terminų žodynas

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