Brazilian Portuguese rhotics in poem reciting

2018 ◽  
pp. 191-215
Author(s):  
Sandra Madureira
Keyword(s):  
Brazilian Portuguese ◽  
Acoustic Characteristics ◽  
Conditioning Factors ◽  
Speech Data

Rhotics are diverse in nature and conditioning factors. In this work the use of Brazilian Portuguese rhotic varieties in the context of recitation of a poem by a professional actor is analyzed and articulatory and acoustic descriptions of the Brazilian Portuguese rhotic varieties are provided. The choice of varieties in the analyzed speech data is interpreted as deriving from the shaping of acoustic characteristics so as to produce impressive meaningful effects. These effects are achieved through the symbolic use of sound, and the fact that sounds are sense-impressive and meaning-expressive is taken to be the foundation of speech expressivity.

Acoustic Characteristics of the Voice for Brazilian Portuguese Speakers Across the Life Span

2020 ◽  
Author(s):  
Evelyn Alves Spazzapan ◽  
Eliana Maria Gradim Fabron ◽  
Larissa Cristina Berti ◽  
Eduardo Federighi Baisi Chagas ◽  
Viviane Cristina de Castro Marino
Keyword(s):  
Life Span ◽  
Brazilian Portuguese ◽  
Acoustic Characteristics ◽  
The Voice

scholarly journals Ensemble based speaker recognition using unsupervised data selection

2016 ◽  
Vol 5 ◽  
Author(s):  
Chien-Lin Huang ◽  
Jia-Ching Wang ◽  
Bin Ma
Keyword(s):  
Speaker Recognition ◽  
Auxiliary Information ◽  
Divide And Conquer ◽  
Data Selection ◽  
Ensemble Classifiers ◽  
Acoustic Characteristics ◽  
New Approach ◽  
Speech Data ◽  
Significant Performance ◽  
Improved Performance

This paper presents an ensemble-based speaker recognition using unsupervised data selection. Ensemble learning is a type of machine learning that applies a combination of several weak learners to achieve an improved performance than a single learner. A speech utterance is divided into several subsets based on its acoustic characteristics using unsupervised data selection methods. The ensemble classifiers are then trained with these non-overlapping subsets of speech data to improve the recognition accuracy. This new approach has two advantages. First, without any auxiliary information, we use ensemble classifiers based on unsupervised data selection to make use of different acoustic characteristics of speech data. Second, in ensemble classifiers, we apply the divide-and-conquer strategy to avoid a local optimization in the training of a single classifier. Our experiments on the 2010 and 2008 NIST Speaker Recognition Evaluation datasets show that using ensemble classifiers yields a significant performance gain.

Disfluencies in the analysis of speech data

1996 ◽  
Vol 8 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Anthony Julius Naro ◽  
Maria Marta Pereira Scherre
Keyword(s):  
Brazilian Portuguese ◽  
Numerical Results ◽  
Factor Group ◽  
Language Learner ◽  
Speech Data ◽  
Different Types ◽  
Rule Analysis

ABSTRACTIn our study of concord phenomena in spoken Brazilian Portuguese we found disfluencies, including apparent corrections, in about 15% of the relevant tokens in our corpus of recorded speech data. Disfluencies have very little effect on the rate of marking. When fluency is included in a variable rule analysis as a factor group containing categories for different types of disfluency, as well as for data without any disfluency, it is not selected as statistically significant. Furthermore, separate analyses of all data, only fluent data, and only disfluent data revealed no significant changes in the numerical results obtained for other factor groups. We conclude that, at least insofar as the variable phenomena we studied are concerned, speech is not overly laden with errors; there is nothing in the data to mislead the language learner.

scholarly journals Interference of dentofacial deformities in the acoustic characteristics of speech sounds

Revista CEFAC ◽  
2019 ◽  
Vol 21 (4) ◽  
Author(s):  
Janaina dos Santos Coelho ◽  
Renata Christina Vieira ◽  
Esther Mandelbaum Gonçalves Bianchini
Keyword(s):  
Acoustic Analysis ◽  
Brazilian Portuguese ◽  
Class Iii ◽  
Variable Intensity ◽  
Acoustic Characteristics ◽  
Skeletal Class ◽  
Speech Characteristics ◽  
Skeletal Class Ii ◽  
Dentofacial Deformities ◽  
Variable Duration

ABSTRACT Purpose: to verify speech characteristics regarding the production of fricative sounds in people with dentofacial deformities (DFD), through acoustic analysis, evaluating possible interferences of the variation of the osseous bases in the articulation of speech. Methods: fifteen adults of both genders, aged between 17 and 42, participated in the study. They were distributed in three groups: GII (n = 5) Skeletal Class II, GIII (n = 5) Skeletal Class III, and CG (n = 5) without DFD. All of them had their voices recorded, with key words containing the fricative sounds of Brazilian Portuguese (BP), and acoustically analyzed; the parameters: duration, intensity, and formants F1, F2. The Mann-Whitney test was used to compare the groups. Results: there were differences (p <0.05) when comparing GII and GIII with CG. For the variable duration GIII obtained higher value in the fricative sound /z/ (r = 0.016, p <0.05). The variable intensity was higher for GII in /z/ (r = 0.028, p <0.05), and higher for GIII in /f/ (r = 0.028, p <0.05), /v/ (r = 0.028, p<0.05) and /ʃ/ (r = 0.036, p <0.05). For the variable F1, GII obtained a higher value for the syllable /za/ (r = 0.047, p <0.05). In the variable F2, GII obtained the lowest value in the syllable /ʒa/ (r = 0.047, p <0.05). Conclusion: the disharmony of the maxillomandibular osseous bases results in interference in speech acoustic characteristics regarding fricative sounds.

scholarly journals Poster 3: The acoustic analysis of vowel productions pre- and post-lingual frenectomy

2016 ◽  
Vol 42 (1) ◽  
pp. 55-60
Author(s):  
Zuleica Camargo ◽  
◽  
Luciana Oliveira ◽  
Maria Svicero ◽  
Irene Marchesan ◽  
...  
Keyword(s):  
Acoustic Analysis ◽  
Brazilian Portuguese ◽  
Interval Methods ◽  
Acoustic Measurements ◽  
Height Range ◽  
Post Surgery ◽  
Speech Data ◽  
Tongue Position ◽  
Jaw Position ◽  
Limited Height

Introduction: Subjects with altered lingual frenulum may have difficulty speaking, chewing, and swallowing. Acoustic analysis allows for inferring the mechanisms of speech production, such as the tongue position on the horizontal and vertical axes and the jaw position. Aim: The aim is to compare formant frequencies (F1 and F2) for seven oral vowels in Brazilian Portuguese (BP), when produced by individuals who had a lingual frenectomy, pre- and post-surgical periods (a minimum six-month interval). Methods: There were seven subjects ranging in age from 6y3m to 14y7m, who were assessed and diagnosed with lingual frenulum alteration and the need for frenectomy was indicated, were selected and participated in two collections of speech data: (a) pre- surgery and (b) post-surgery. The speech samples consisted of words containing the seven vowels of BP which were acoustically analyzed in the software PRAAT, and the F1 and F2 measures were taken. The data were statistically analyzed (ANOVA) for the different vowels in the moments (a) and (b). Results: Acoustic measurements revealed significant differences between the pre-and post-surgical period (six months) when compared to F1 for vowels [a] (p = 0.018), [e] (p = 0.018) and [u] (p = 0.049) and F2 for vowels [e] (p = 0.026) and [u] (p<0.001). Conclusion: F1 and F2 values indicated that the movement of the tongue improved after lingual frenectomy, revealing greater anterior mobilization but limited height range.

scholarly journals On pre-stressed high vowels raising process in brazilian portuguese

2021 ◽  
Vol 5 (2) ◽  
pp. 141-157
Author(s):  
Dinah Callou ◽  
Luana Machado
Keyword(s):  
Graduate Students ◽  
Rio De Janeiro ◽  
Brazilian Portuguese ◽  
Acoustic Measurements ◽  
Conditioning Factors ◽  
Second Formant ◽  
High Vowels

This paper discusses the hypothesis that the outputs of derived pre-stressed high vowels [i] and [u], in Brazilian Portuguese, are acoustically different from the outputs of the non-derived high vowels, although both are perceptually equivalent. The sample totalizes 1152 tokens extracted from a controlled corpus, recorded at the Phonetic Laboratory of Rio de Janeiro Federal University (UFRJ), with eight university graduate students, four men and four women, from Rio de Janeiro, using acoustic measurements (PRAAT) and multivariational analysis (GOLDVARB X) in order to detect the conditioning factors related to the first and second formant values. The results reveal differences between underlying and derived vowels.

scholarly journals Temporal pattern analysis of voicing in children with and without alterations in sonority feature

Revista CEFAC ◽  
2019 ◽  
Vol 21 (6) ◽  
Author(s):  
Liliane Ramone ◽  
Silvana de Coelho Frota
Keyword(s):  
Acoustic Analysis ◽  
Voice Onset Time ◽  
Onset Time ◽  
Brazilian Portuguese ◽  
Control Group ◽  
Production Test ◽  
Acoustic Characteristics ◽  
Significance Level ◽  
Minimal Pairs ◽  
The Voice

ABSTRACT Purpose: to compare acoustic characteristics of stop consonants in speakers of Brazilian Portuguese with and without alterations in speech referring to voicing feature. Methods: out of 66 children assessed, 18 were selected for this study, aged from 9 to 12 years, distributed in Control Group, 8 without language alterations, and Deviation Group, 10 children with alterations in speech, regarding sonority features. Participants with hearing loss, with cognitive deficit, left-handed ones or using neurological medication, were excluded. The following tests were performed: tonal audiometry, ABFW speech test, and a PowerPoint interactive production test, which was developed by the author for this study, with the purpose of comparing the minimal pairs in words. At the end, the acoustic analysis was conducted, by using the PRAAT program. The acoustic characteristics of stops related to total and relative duration of voice onset time were compared in the two groups and analyzed by the Mann-Whitney U test, with a significance level lower than 0.05. Results: significant differences were observed in the duration of the voice onset time between the two groups, such as the increase in absolute voice onset time in the Deviation Group in voiced stops, and reduction in absolute onset time in voiceless stops. The relative voice onset time presented significant differences between the two groups only in voiceless stops. Conclusion: Brazilian Portuguese speakers with alteration in their sonority feature showed an acoustic pattern different from that of other speakers, regarding the voice onset time.

Prosodic Impairment Associated With Traumatic Brain Injury

2009 ◽  
Vol 19 (3) ◽  
pp. 97-102
Author(s):  
Billy Irwin
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Detailed Analysis ◽  
Acoustic Characteristics ◽  
Individual Variations

Abstract Purpose: This article discusses impaired prosody production subsequent to traumatic brain injury (TBI). Prosody may affect naturalness and intelligibility of speech significantly, often for the long term, and TBI may result in a variety of impairments. Method: Intonation, rate, and stress production are discussed in terms of the perceptual, physiological, and acoustic characteristics associated with TBI. Results and Conclusions: All aspects of prosodic production are susceptible to the effects of damage resulting from TBI. There are commonly associated prosodic impairments; however, individual variations in specific aspects of prosody require detailed analysis.

Age-Related Decline in Emotional Prosody Discrimination

2014 ◽  
Vol 61 (3) ◽  
pp. 215-223 ◽  
Author(s):  
Rachel L. C. Mitchell ◽  
Rachel A. Kingston
Keyword(s):  
Older Adults ◽  
Auditory Perception ◽  
Duration Discrimination ◽  
Pitch Perception ◽  
Sensory Level ◽  
Emotional Prosody ◽  
Processing Stage ◽  
Acoustic Characteristics ◽  
Age Related ◽  
Level Of Processing

It is now accepted that older adults have difficulty recognizing prosodic emotion cues, but it is not clear at what processing stage this ability breaks down. We manipulated the acoustic characteristics of tones in pitch, amplitude, and duration discrimination tasks to assess whether impaired basic auditory perception coexisted with our previously demonstrated age-related prosodic emotion perception impairment. It was found that pitch perception was particularly impaired in older adults, and that it displayed the strongest correlation with prosodic emotion discrimination. We conclude that an important cause of age-related impairment in prosodic emotion comprehension exists at the fundamental sensory level of processing.

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