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Titolo:
COMPARISON OF F(O) EXTRACTION METHODS FOR HIGH-PRECISION VOICE PERTURBATION MEASUREMENTS
Autore:
TITZE IR; LIANG HX;
Indirizzi:
UNIV IOWA,NATL CTR VOICE & SPEECH,DEPT SPEECH PATHOL & AUDIOL IOWA CITY IA 52242 DENVER CTR PERFORMING ARTS,CTR RECORDING & RES DENVER CO 00000
Titolo Testata:
Journal of speech and hearing research
fascicolo: 6, volume: 36, anno: 1993,
pagine: 1120 - 1133
SICI:
0022-4685(1993)36:6<1120:COFEMF>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
TECHNICAL CONSIDERATIONS; SIGNALS; NOISE;
Keywords:
EXTRACTION; PITCH; FREQUENCY; PERTURBATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Social Sciences Citation Index
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
I.R. Titze e H.X. Liang, "COMPARISON OF F(O) EXTRACTION METHODS FOR HIGH-PRECISION VOICE PERTURBATION MEASUREMENTS", Journal of speech and hearing research, 36(6), 1993, pp. 1120-1133

Abstract

Voice perturbation measures, such as jitter and shimmer, depend on accurate extraction of fundamental frequency (F(o)) and amplitude of various waveform types. The extraction method directly affects the accuracy of the measures, particularly if several waveform types (with or without formant structure) are under consideration and if noise and modulation are present in the signal. For frequency perturbation, high precision is defined here as the ability to extract F(o) to +/-0.01% under conditions of noise and modulation. Three F(o)-extraction methods and their software implementations are discussed and compared. The methods are cycle-to-cycle waveform matching, zero-crossing and peak-picking. Interpolation between samples is added to make the extractions moreaccurate and reliable. The sensitivity of the methods to different parameters such as sampling frequency, mean F(o), signal-to-noise ratio,frequency modulation, and amplitude modulation are explored.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:29:11