Journal article
Comparison of F o Extraction Methods for High-Precision Voice Perturbation Measurements
Journal of speech, language, and hearing research, Vol.36(6), pp.1120-1133
12/1993
DOI: 10.1044/jshr.3606.1120
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 more accurate 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.
Details
- Title: Subtitle
- Comparison of F o Extraction Methods for High-Precision Voice Perturbation Measurements
- Creators
- Ingo R. Titze - University of IowaHaixiang Liang - Denver Center for the Performing Arts
- Resource Type
- Journal article
- Publication Details
- Journal of speech, language, and hearing research, Vol.36(6), pp.1120-1133
- Publisher
- AMER SPEECH-LANGUAGE-HEARING ASSOC; ROCKVILLE
- DOI
- 10.1044/jshr.3606.1120
- ISSN
- 1092-4388
- eISSN
- 1558-9102
- Number of pages
- 14
- Grant note
- NIDCD NIH HHS: DC00387-05
- Language
- English
- Date published
- 12/1993
- Academic Unit
- Communication Sciences and Disorders; School of Music
- Record Identifier
- 9984719753302771
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