Effect of tape recording on perturbation measures.
Tape recorders have been shown to affect measures of voice perturbation. Few studies, however, have been conducted to quantitatively justify the use or exclusion of certain types of recorders in voice perturbation studies. This study used sinusoidal and triangular waves and synthesized vowels to com...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 41; no. 5; pp. 1031 - 1042 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
American Speech-Language-Hearing Association
Oct1998
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107161560&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107161560 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Oct1998 vid: 41 iid: 5 pid: 42 pub: American Speech-Language-Hearing Association place: Rockville, Maryland artinfo: ui: 107161560 107161560 1999011380 10.1044/jslhr.4105.1031 NLM9771626 107161560 ppf: 1031 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effect of tape recording on perturbation measures. aug: au: Jiang J Lin E Hanson DG affil: Department of Otolaryngology-Head and Neck Surgery, Northwestern University Medical School, Searle Building 12-561, 303 E. Chicago Ave., Northwestern University Medical School, Chicago, IL. E-mail: jjiang@nwu.edu sug: subj: Audiorecording Evaluation Speech Sample Signal Processing, Computer Assisted Funding Source Comparative Studies Equipment Design Videorecording Analysis of Variance Descriptive Statistics Waveforms Human ab: Tape recorders have been shown to affect measures of voice perturbation. Few studies, however, have been conducted to quantitatively justify the use or exclusion of certain types of recorders in voice perturbation studies. This study used sinusoidal and triangular waves and synthesized vowels to compare perturbation measures extracted from directly digitized signals with those recorded and played back through various tape recorders, including 3 models of digital audio tape recorders, 2 models of analog audio cassette tape recorders, and 2 models of video tape recorders. Signal contamination for frequency perturbation values was found to be consistently minimal with digital recorders (percent jitter = 0.01%-0.02%), mildly increased with video recorders (0.05%-0.10%), moderately increased with a high-quality analog audio cassette tape recorder (0.15%), and most prominent with a low-quality analog audio cassette tape recorder (0.24%). Recorder effect on amplitude perturbation measures was lowest in digital recorders (percent shimmer = 0.09%-0.20%), mildly to moderately increased in video recorders and a high-quality analog audio cassette tape recorder (0.25%-0.45%), and most prominent in a low-quality analog audio cassette tape recorder (0.98%). The effect of cassette tape material, length of spooled tape, and duration of analysis were also tested and are discussed. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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