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Voice

About: Voice is a research topic. Over the lifetime, 2393 publications have been published within this topic receiving 56637 citations.


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01 Jan 2007
TL;DR: The authors compared the six plosives of Standard Chinese with those of RP British English to see if there is a difference in their aspiration and/or voicing, and found that there is little difference in the aspiration of the ploives in the two languages, though there was a change in the voicing during the closure when the plosive occurs between two vowels.
Abstract: The six plosives of Standard Chinese are compared with those of RP British English, to see if there is a difference in their aspiration and/or voicing. Recordings of 7 speakers from China reading words beginning with each of the 6 plosives are compared to similar recordings of 7 speakers of RP British English, and it is found that there is little difference in the aspiration of the plosives in the two languages, though there is a difference in the voicing during the closure when the plosive occurs between two vowels.

22 citations

Journal ArticleDOI
TL;DR: The overall findings are that attributes relating to the burst spectrum in relation to the vowel contribute most effectively, while Attributes relating to formant transition are somewhat less effective.
Abstract: One of the approaches to automatic speech recognition is a distinctive feature-based speech recognition system, in which each of the underlying word segments is represented with a set of distinctive features. This thesis presents a study concerning acoustic attributes used for identifying the place of articulation features for stop consonant segments. The acoustic attributes are selected so that they capture the information relevant to place identification, including amplitude and energy of release bursts, formant movements of adjacent vowels, spectra of noises after the releases, and some temporal cues. An experimental procedure for examining the relative importance of these acoustic attributes for identifying stop place is developed. The ability of each attribute to separate the three places is evaluated by the classification error based on the distributions of its values for the three places, and another quantifier based on F-ratio. These two quantifiers generally agree and show how well each individual attribute separates the three places. Combinations of non-redundant attributes are used for the place classifications based on Mahalanobis distance. When stops contain release bursts, the classification accuracies are better than 90%. It was also shown that voicing and vowel frontness contexts lead to a better classification accuracy of stops in some contexts. When stops are located between two vowels, information on the formant structures in the vowels on both sides can be combined. Such combination yielded the best classification accuracy of 95.5%. By using appropriate methods for stops in different contexts, an overall classification accuracy of 92.1% is achieved. Linear discriminant function analysis is used to address the relative importance of these attributes when combinations are used. Their discriminating abilities and the ranking of their relative importance to the classifications in different vowel and voicing contexts are reported. The overall findings are that attributes relating to the burst spectrum in relation to the vowel contribute most effectively, while attributes relating to formant transition are somewhat less effective. The approach used in this study can be applied to different classes of sounds, as well as stops in different noise environments. (Copies available exclusively from MIT Libraries, Rm. 14-0551, Cambridge, MA 02139-4307. Ph. 617-253-5668; Fax 617-253-1690.)

22 citations

28 Jul 2011
TL;DR: This paper found that the articulatory contingency is at the heart of the F0 differences, but these differences may be reinforced by active laryngeal adjustments, leading to a hybrid model.
Abstract: Several phonological oppositions are typically accompanied by F0 differences. F0 is higher following voiceless consonants than voiced; it is also higher for high than low vowels. Analysis of cricothyroid activity aimed to determine whether these F0 differences are automatic effects contingent on the basic articulatory manoeuvres required for the oppositions of voicing and vowel height, or whether the differences reflect active enhancement strategies. Results for both oppositions suggest a hybrid model: The articulatory contingency is at the heart of the F0 differences, but these differences may be reinforced by active laryngeal adjustments. Additional analysis focused on German tense vs. lax vowels. Higher cricothyroid activity in lax vowels could explain why these vowels do not follow typical intrinsic F0 patterns. Tentative support was found.

22 citations

Journal ArticleDOI
TL;DR: The results confirm that voicing patterns established for simple onsets in the literature in terms of voice onset time of both German and French also obtain in clusters, and show that contrary to the expectations French clusters pattern with German mixed-voicing clusters.
Abstract: The effects of laryngeal specification on the timing of supra-laryngeal articulations have so far received little attention. Previous research has shown that German—but not French—mixed-voicing clusters are produced with less articulatory overlap than phonologically fully voiced clusters. Articulatory and acoustic data of labial and velar stops as simple onsets and in stop + /l/ clusters are examined to probe the causes for this cross-linguistic difference in the light of the different voicing implementations of French and German. The absence of overlap in German mixed-voicing clusters is attributed to the requirement of a time slot for the stop's aspiration phase. Since French does not commonly have aspirated stops, French clusters are expected to pattern with the voiced German clusters. The results confirm that voicing patterns established for simple onsets in the literature in terms of voice onset time of both German and French also obtain in clusters. Furthermore, the data show that contrary to the expectations French clusters pattern with German mixed-voicing clusters. This low degree of overlap in both voiceless and voiced French clusters indicates that overlap is restricted by aerodynamic requirements which result from the implementations of the voicing contrast.

22 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023102
2022248
202156
202073
201981
201888