Sound and Matlab® Neil E. Cotter ECE Department

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Presentation transcript:

Sound and Matlab® Neil E. Cotter ECE Department necotter@ece.utah.edu UNIVERSITY OF UTAH necotter@ece.utah.edu

Resonances [1]

Vocal Tract [2] Pipe organ Driven by puffs of air

Formants [3] Frequency response Vowel = musical chord

Glottal Pulses [4] Rate = voice pitch Shape varies slightly

Speech Waveform Vowel repetitive Plosive explosive Fricatives noisy [5] [7] Vowel repetitive Plosive explosive [6] Fricatives noisy

References Neil E. Cotter necotter@ece.utah.edu [1] http://www.nmha.org/go/bell [2] http://www.vocalclinic.net/ [3] http://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2011/wd65_yz526/wd65 and yz526/highlevel.html [4] http://www.jr.ietejournals.org/article.asp?issn=0377-2063;year=2011;volume=57;issue=4;spage=363;epage=371;aulast=Raj [5] http://web.science.mq.edu.au/~cassidy/comp449/html/comp449.html [6] http://folk.uio.no/ristoh/aspiration/analysis.html [7] http://www.phon.ucl.ac.uk/home/johnm/siphtra/plostut2/plostut2-5.htm Neil E. Cotter necotter@ece.utah.edu