scholarly journals Calibration of consonant perception to room reverberation

2020 ◽  
Author(s):  
Eleni Vlahou ◽  
Kanako Ueno ◽  
Barbara G. Shinn-Cunningham ◽  
Norbert Kopčo
Keyword(s):  
Feature Analysis ◽  
Stop Consonants ◽  
Phonetic Feature ◽  
Phonetic Categories ◽  
Phonetic Features ◽  
Manner Of Articulation ◽  
Small Advantage

AbstractPurposeWe examined how consonant perception is affected by a preceding speech carrier simulated in the same or a different room, for a broad range of consonants. Carrier room, carrier length, and carrier length/target room uncertainty were manipulated. A phonetic feature analysis tested which phonetic categories are most influenced by the acoustic context of the carrier.MethodTwo experiments were performed, each with 9 participants. Targets consisted of vowel-consonant (VC) syllables presented in one of 2 strongly reverberant rooms, preceded by a VC carrier presented either in the same room, a different reverberant room, or an anechoic room. In Experiment 1 the carrier length and the target room randomly varied from trial to trial while in Experiment 2 they were fixed within blocks of trials.ResultsCompared to the no-carrier condition, a consistent carrier provided only a small advantage for consonant perception, whereas inconsistent carriers disrupted performance significantly. For a different-room carrier, carrier length had an effect; performance dropped significantly in the 2-VC compared to the 4-VC carrier length. The only effect of carrier uncertainty was an overall drop in performance. Phonetic analysis showed that an inconsistent carrier significantly degraded identification of the manner of articulation, especially for stop consonants, and, in one of the rooms, also of voicing.ConclusionsCalibration of consonant perception to strong reverberation is exhibited through disruptions in perception when the room is switched. The strength of calibration varies across different consonants and phonetic features, as well as across rooms and durations of exposure to a given room.

scholarly journals Calibration of Consonant Perception to Room Reverberation

2021 ◽  
pp. 1-21
Author(s):  
Eleni Vlahou ◽  
Kanako Ueno ◽  
Barbara G. Shinn-Cunningham ◽  
Norbert Kopčo
Keyword(s):  
Feature Analysis ◽  
Stop Consonants ◽  
Phonetic Feature ◽  
Target Uncertainty ◽  
Place Of Articulation ◽  
Phonetic Categories ◽  
Phonetic Features ◽  
Manner Of Articulation ◽  
Different Levels

Purpose We examined how consonant perception is affected by a preceding speech carrier simulated in the same or a different room, for different classes of consonants. Carrier room, carrier length, and carrier length/target room uncertainty were manipulated. A phonetic feature analysis tested which phonetic categories are influenced by the manipulations in the acoustic context of the carrier. Method Two experiments were performed, each with nine participants. Targets consisted of 10 or 16 vowel–consonant (VC) syllables presented in one of two strongly reverberant rooms, preceded by a multiple-VC carrier presented in either the same room, a different reverberant room, or an anechoic room. In Experiment 1, the carrier length and the target room randomly varied from trial to trial, whereas in Experiment 2, they were fixed within a block of trials. Results Overall, a consistent carrier provided an advantage for consonant perception compared to inconsistent carriers, whether in anechoic or differently reverberant rooms. Phonetic analysis showed that carrier inconsistency significantly degraded identification of the manner of articulation, especially for stop consonants and, in one of the rooms, also of voicing. Carrier length and carrier/target uncertainty did not affect adaptation to reverberation for individual phonetic features. The detrimental effects of anechoic and different reverberant carriers on target perception were similar. Conclusions The strength of calibration varies across different phonetic features, as well as across rooms with different levels of reverberation. Even though place of articulation is the feature that is affected by reverberation the most, it is the manner of articulation and, partially, voicing for which room adaptation is observed.

Acoustic‐phonetic features for the automatic recognition of stop consonants

1998 ◽  
Vol 103 (5) ◽  
pp. 2777-2778 ◽  
Author(s):  
Ahmed M. Abdelatty Ali ◽  
Jan Van der Spiegel ◽  
Paul Mueller
Keyword(s):  
Automatic Recognition ◽  
Stop Consonants ◽  
Phonetic Features

Pre-Speech in Children with Cleft Lip and Palate or Cleft Palate Only: Phonetic Analysis Related to Morphologic and Functional Factors

1994 ◽  
Vol 31 (4) ◽  
pp. 271-279 ◽  
Author(s):  
Anette Lohmander-Agerskov ◽  
Ewa Söderpalm ◽  
Hans Friede ◽  
Eva-Carin Persson ◽  
Jan Lilja
Keyword(s):  
Cleft Palate ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Surgical Repair ◽  
Place Of Articulation ◽  
Functional Factors ◽  
Phonetic Features ◽  
Delayed Closure ◽  
Manner Of Articulation ◽  
Positive Effect

Pre-speech in 35 children with clefts of the lip and palate or palate only were analyzed for place and manner of articulation. Transcriptions were made from tape recorded babbling sequences. Two children without clefts were used as reference. All of the children with clefts were treated according to a regimen of early surgical repair of the velum cleft and delayed closure of the cleft in the hard palate. The frequency of selected phonetic features was calculated. Correlations between phonetic/perceptual and functional and morphological factors were tested. Supraglottal articulation dominated among all the children Indicating a sufficient velopharyngeal mechanism. The results also showed correlations between cleft type and place of articulation. Anteriorly placed sounds (I.e., bilabial, dental, and alveolar sounds) occurred frequently among the children with cleft palate only and in the noncleft children. In children with cleft lip and palate, posteriorly placed articulations predominated. It was postulated that early intervention may have a positive effect on articulatory development.

Vocal Tract Control in Parkinson's Disease

1981 ◽  
Vol 46 (4) ◽  
pp. 348-352 ◽  
Author(s):  
Jeri A. Logemann ◽  
Hilda B. Fisher
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Vocal Tract ◽  
Feature Analysis ◽  
High Fidelity ◽  
Phonetic Feature ◽  
Phonetic Transcription ◽  
Complete Closure ◽  
Articulatory Features ◽  
Production Characteristics

Consonant articulation patterns of 200 Parkinson patients were defined by two expert listeners from high fidelity tape recordings of the sentence version of the Fisher-Logemann Test of Articulation Competence (1971). Phonetic transcription and phonetic feature analysis were the methodologies used. Of the 200 patients, 90 (45%) exhibited some misarticulations. Phonetic data on these 90 dysarthric Parkinson patients revealed articulatory errors highly consistent in detailed production characteristics. Manner changes predominated. Phoneme classes that were most affected were the stop-plosives, affricates, and fricatives. In terms of perception features (Chomsky & Halle, 1968), the stop-plosives and affricates, which are normally [– continuant] were produced as [ + continuant] fricatives; fricatives that are [+ strident] were produced as [– strident]. There is no implication, however, that Parkinsonism involves a perception deficit. Analysis of the articulatory deficit reveals inadequate tongue elevation to achieve complete closure on stop-plosives and affricates, which can be expressed in production features as a change from [+ stop] to [+ fricative]. There was also inadequate close construction of the airway in lingual fricatives, which in articulatory features can be expressed as a change from [+ fricative] to [– fricative]. Both the incomplete contact for stops and the partial constriction for fricatives represent and inadequate narrowing of the vocal tract at the point of articulation. These results are discussed in relation to recent EMG studies and other physiologic examinations of Parkinsonian dysarthria.

[i] is Lighter and More Greenish Than [o]: Intrinsic Association Between Vowel Sounds and Colors

2018 ◽  
Vol 31 (5) ◽  
pp. 419-437 ◽  
Author(s):  
Hyun-Woong Kim ◽  
Hosung Nam ◽  
Chai-Youn Kim
Keyword(s):  
General Population ◽  
Control Experiment ◽  
Main Experiment ◽  
Linguistic Features ◽  
Phonetic Feature ◽  
Specific Manner ◽  
Phonetic Features

It has recently been reported in the synesthesia literature that graphemes sharing the same phonetic feature tend to induce similar synesthetic colors. In the present study, we investigated whether phonetic properties are associated with colors in a specific manner among the general population, even when other visual and linguistic features of graphemes are removed. To test this hypothesis, we presented vowel sounds synthesized by systematically manipulating the position of the tongue body’s center. Participants were asked to choose a color after hearing each sound. Results from the main experiment showed that lightness and chromaticity of matched colors exhibited systematic variations along the two axes of the position of the tongue body’s center. Some non-random associations between vowel sounds and colors remained effective with pitch and intensity of the sounds equalized in the control experiment, which suggests that other acoustic factors such as inherent pitch of vowels cannot solely account for the current results. Taken together, these results imply that the association between phonetic features and colors is not random, and this synesthesia-like association is shared by people in the general population.

Impairment of Speech Intelligibility in Men with Amyotrophic Lateral Sclerosis

1990 ◽  
Vol 55 (4) ◽  
pp. 721-728 ◽  
Author(s):  
Raymond D. Kent ◽  
Jane F. Kent ◽  
Gary Weismer ◽  
Robert L. Sufit ◽  
John C. Rosenbek ◽  
...  
Keyword(s):  
Amyotrophic Lateral Sclerosis ◽  
Speech Intelligibility ◽  
Percent Correct ◽  
Error Proportion ◽  
Male Patients ◽  
Phonetic Features ◽  
Muscle Impairment ◽  
Intelligibility Score ◽  
Manner Of Articulation ◽  
Lateral Sclerosis

Speech intelligibility was studied in a group of 25 male patients with amyotrophic lateral sclerosis (ALS). The object of the study was to determine the phonetic impairments underlying the speech intelligibility deficits that frequently accompany ALS. Analyses with a word intelligibility test indicated that the most disrupted phonetic features involved phonatory (voicing contrast) function, velopharyngeal valving, place and manner of articulation for lingual consonants, and regulation of tongue height for vowels. The mean error proportion for the five most severely affected features correlated highly (0.97) with the intelligibility score (percent correct). The phonetic feature analyses are one index of bulbar muscle impairment in amyotrophic lateral sclerosis and also may help to direct the speech management in these individuals.

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