keyword
MENU ▼
Read by QxMD icon Read
search

acoustic phonetics

keyword
https://www.readbyqxmd.com/read/28213999/application-of-the-acoustic-voice-quality-index-for-objective-measurement-of-dysphonia-severity
#1
Faustino Núñez-Batalla, Estefanía Díaz-Fresno, Andrea Álvarez-Fernández, Gabriela Muñoz Cordero, José Luis Llorente Pendás
INTRODUCTION: Over the past several decades, many acoustic parameters have been studied as sensitive to and to measure dysphonia. However, current acoustic measures might not be sensitive measures of perceived voice quality. A meta-analysis which evaluated the relationship between perceived overall voice quality and several acoustic-phonetic correlates, identified measures that do not rely on the extraction of the fundamental period, such the measures derived from the cepstrum, and that can be used in sustained vowel as well as continuous speech samples...
February 14, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28208148/local-and-global-cues-in-the-prosodic-realization-of-broad-and-narrow-focus-in-bulgarian
#2
Bistra Andreeva, William John Barry, Jacques Koreman
In this study, local and global prosodic cues for information structure are examined in the elicited production of six Bulgarian sentences. The sentences were produced in response to different questions, devised to prompt different focus realizations (broad focus and non-contrastive and contrastive narrow focus). Results show that speakers consistently differentiate broad and narrow focus by means of both local and global acoustic cues, by producing different pitch accent types on the nuclear syllable and reducing the 'phonetic strength' of the default pre-nuclear accent in the narrow focus condition...
2016: Phonetica
https://www.readbyqxmd.com/read/28169421/n1-response-attenuation-and-the-mismatch-negativity-mmn-to-within-and-across-category-phonetic-contrasts
#3
Daniel M R Silva, Danilo B Melges, Rui Rothe-Neves
According to the neural adaptation model of the mismatch negativity (MMN), the sensitivity of this event-related response to both acoustic and categorical information in speech sounds can be accounted for by assuming that (a) the degree of overlapping between neural representations of two sounds depends on both the acoustic difference between them and whether or not they belong to distinct phonetic categories, and (b) a release from stimulus-specific adaptation causes an enhanced N1 obligatory response to infrequent deviant stimuli...
February 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28166843/the-emergence-of-phonetic-categories-in-korean-english-bilingual-children
#4
Sue Ann S Lee, Gregory K Iverson
The present study examined the speech production of three-year-old Korean-English bilingual (KEB) children. English and Korean stops, as well as front vowels in both languages, were compared acoustically among the KEB children, then also measured against those of their age-equivalent monolingual counterparts. Evidence of distinctive phonetic categorization in bilingual children was more salient in vowels than in stops. Vowels and stops produced by the bilingual children were not significantly different from those of their monolingual counterparts...
February 7, 2017: Journal of Child Language
https://www.readbyqxmd.com/read/28129059/speaking-style-influences-the-brain-s-electrophysiological-response-to-grammatical-errors-in-speech-comprehension
#5
Malte C Viebahn, Mirjam Ernestus, James M McQueen
This electrophysiological study asked whether the brain processes grammatical gender violations in casual speech differently than in careful speech. Native speakers of Dutch were presented with utterances that contained adjective-noun pairs in which the adjective was either correctly inflected with a word-final schwa (e.g., een spannende roman, "a suspenseful novel") or incorrectly uninflected without that schwa (een spannend roman). Consistent with previous findings, the uninflected adjectives elicited an electrical brain response sensitive to syntactic violations when the talker was speaking in a careful manner...
January 27, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28119400/dynamic-encoding-of-acoustic-features-in-neural-responses-to-continuous-speech
#6
Bahar Khalighinejad, Guilherme Cruzatto da Silva, Nima Mesgarani
: Humans are unique in their ability to communicate using spoken language. However, it remains unclear how the speech signal is transformed and represented in the brain at different stages of the auditory pathway. In this study, we characterized electroencephalography (EEG) responses to continuous speech by obtaining the time-locked responses to phoneme instances (phoneme-related potential, PRP). We showed that responses to different phoneme categories are organized by phonetic features...
January 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28112017/word-level-prominence-in-persian-an-experimental-study
#7
Vahid Sadeghi
Previous literature on the phonetics of stress in Persian has reported that fundamental frequency is the only reliable acoustic correlate of stress, and that stressed and unstressed syllables are not differentiated from each other in the absence of accentuation. In this study, the effects of lexical stress on duration, overall intensity and spectral tilt were examined in Persian both in the accented and unaccented conditions. Results showed that syllable duration is consistently affected by stress in Persian in both the accented and unaccented conditions across all vowel types...
January 1, 2017: Language and Speech
https://www.readbyqxmd.com/read/28102014/phonetic-analysis-during-treatment-with-rapid-maxillary-expander
#8
E Biondi, A Bandini, L Lombardo, S Orlandi, G Siciliani, C Manfredi
OBJECTIVES: To investigate possible changes and/or device-related impairments in phonetic habits produced by rapid maxillary expansion (RME). MATERIALS AND METHODS: Thirty-five patients scheduled for RME were divided into two groups: Group A (banded two-arm Hyrax) and Group B (banded four-arm Hyrax). Speech samples were collected at six time points, before, during and after RME removal. Acoustical analysis was performed using PRAAT and BioVoice analysis tools. Ten volunteers completed a questionnaire on the acceptability of patient's speech...
February 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28056139/children-s-use-of-semantic-context-in-perception-of-foreign-accented-speech
#9
Rachael Frush Holt, Tessa Bent
Purpose: The purpose of this study is to evaluate children's use of semantic context to facilitate foreign-accented word recognition in noise. Method: Monolingual American English speaking 5- to 7-year-olds (n = 168) repeated either Mandarin- or American English-accented sentences in babble, half of which contained final words that were highly predictable from context. The same final words were presented in the low- and high-predictability sentences. Results: Word recognition scores were better in the high- than low-predictability contexts...
January 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28045838/effect-of-context-and-hearing-loss-on-time-gated-word-recognition-in-children
#10
Dawna Lewis, Judy Kopun, Ryan McCreery, Marc Brennan, Kanae Nishi, Evan Cordrey, Pat Stelmachowicz, Mary Pat Moeller
OBJECTIVES: The purpose of this study was to examine word recognition in children who are hard of hearing (CHH) and children with normal hearing (CNH) in response to time-gated words presented in high- versus low-predictability sentences (HP, LP), where semantic cues were manipulated. Findings inform our understanding of how CHH combine cognitive-linguistic and acoustic-phonetic cues to support spoken word recognition. It was hypothesized that both groups of children would be able to make use of linguistic cues provided by HP sentences to support word recognition...
December 30, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28040034/automatic-measurement-of-vowel-duration-via-structured-prediction
#11
Yossi Adi, Joseph Keshet, Emily Cibelli, Erin Gustafson, Cynthia Clopper, Matthew Goldrick
A key barrier to making phonetic studies scalable and replicable is the need to rely on subjective, manual annotation. To help meet this challenge, a machine learning algorithm was developed for automatic measurement of a widely used phonetic measure: vowel duration. Manually-annotated data were used to train a model that takes as input an arbitrary length segment of the acoustic signal containing a single vowel that is preceded and followed by consonants and outputs the duration of the vowel. The model is based on the structured prediction framework...
December 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28002838/effect-of-domain-initial-strengthening-on-vowel-height-and-backness-contrasts-in-french-acoustic-and-ultrasound-data
#12
Laurianne Georgeton, Tanja Kocjancic Antolík, Cécile Fougeron
Purpose: Phonetic variation due to domain initial strengthening was investigated with respect to the acoustic and articulatory distinctiveness of vowels within a subset of the French oral vowel system /i, e, ɛ, a, o, u/, organized along 4 degrees of height for the front vowels and 2 degrees of backness at the close and midclose height levels. Method: Acoustic and lingual ultrasound data were examined to characterize the production of vowels in intonational phrase initial position, compared with intonational phrase medial position, for 4 speakers...
December 1, 2016: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28000516/speech-perception-in-children-with-cochlear-implants-for-continua-varying-in-formant-transition-duration
#13
Kathryn Guillot Blankenship, Ralph N Ohde, Jong Ho Won, Mark Hedrick
PURPOSE: To examine the developmental course of labial and alveolar manner of articulation contrasts, and to determine how that course may be different for typically developing (TD) children with cochlear implants (CI). METHOD: Eight young adults, eight TD 5-8 year-old children, and seven 5-8 year-old children with CIs participated. Labial /ba/-/wa/ and alveolar /da/-/ja/ continua stimuli were presented, with each continuum consisting of nine synthetic stimuli varying in F2 and F3 transition duration...
December 21, 2016: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/27996973/perceptual-restoration-of-masked-speech-in-human-cortex
#14
Matthew K Leonard, Maxime O Baud, Matthias J Sjerps, Edward F Chang
Humans are adept at understanding speech despite the fact that our natural listening environment is often filled with interference. An example of this capacity is phoneme restoration, in which part of a word is completely replaced by noise, yet listeners report hearing the whole word. The neurological basis for this unconscious fill-in phenomenon is unknown, despite being a fundamental characteristic of human hearing. Here, using direct cortical recordings in humans, we demonstrate that missing speech is restored at the acoustic-phonetic level in bilateral auditory cortex, in real-time...
December 20, 2016: Nature Communications
https://www.readbyqxmd.com/read/27927010/the-phonetic-characteristics-in-patients-of-bilateral-vocal-fold-paralysis-without-tracheotomy
#15
Yong Tae Hong, Min Ju Park, Yu Jeong Shin, Phan Huu Ngoc Minh, Ki Hwan Hong
Objectives: Patients with bilateral vocal fold paralysis (BVFP) theoretically have difficulty producing voiceless consonants. However, perceptual studies have revealed clear production of voiceless consonants with good articulation scores in nontracheostomized patients. The purpose of this study was to clarify the production of voiceless stops during articulation in patients with BVFP compared to normal speakers. Methods: The perceptual, acoustic, and aerodynamic characteristics of patients with BVFP and those with normal speech were investigated with special reference to voiceless stop consonants...
November 17, 2016: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/27908060/individual-differences-in-the-perception-of-regional-nonnative-and-disordered-speech-varieties
#16
Tessa Bent, Melissa Baese-Berk, Stephanie A Borrie, Megan McKee
Speech perception abilities vary substantially across listeners, particularly in adverse conditions including those stemming from environmental degradation (e.g., noise) or from talker-related challenges (e.g., nonnative or disordered speech). This study examined adult listeners' recognition of words in phrases produced by six talkers representing three speech varieties: a nonnative accent (Spanish-accented English), a regional dialect (Irish English), and a disordered variety (ataxic dysarthria). Semantically anomalous phrases from these talkers were presented in a transcription task and intelligibility scores, percent words correct, were compared across the three speech varieties...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27898342/voice-sensitive-brain-networks-encode-talker-specific-phonetic-detail
#17
Emily B Myers, Rachel M Theodore
The speech stream simultaneously carries information about talker identity and linguistic content, and the same acoustic property (e.g., voice-onset-time, or VOT) may be used for both purposes. Separable neural networks for processing talker identity and phonetic content have been identified, but it is unclear how a singular acoustic property is parsed by the neural system for talker identification versus phonetic processing. In the current study, listeners were exposed to two talkers with characteristically different VOTs...
February 2017: Brain and Language
https://www.readbyqxmd.com/read/27826946/phonetic-convergence-across-multiple-measures-and-model-talkers
#18
Jennifer S Pardo, Adelya Urmanche, Sherilyn Wilman, Jaclyn Wiener
This study consolidates findings on phonetic convergence in a large-scale examination of the impacts of talker sex, word frequency, and model talkers on multiple measures of convergence. A survey of nearly three dozen published reports revealed that most shadowing studies used very few model talkers and did not assess whether phonetic convergence varied across same- and mixed-sex pairings. Furthermore, some studies have reported effects of talker sex or word frequency on phonetic convergence, but others have failed to replicate these effects or have reported opposing patterns...
November 8, 2016: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/27819457/more-than-a-boundary-shift-perceptual-adaptation-to-foreign-accented-speech-reshapes-the-internal-structure-of-phonetic-categories
#19
Xin Xie, Rachel M Theodore, Emily B Myers
The literature on perceptual learning for speech shows that listeners use lexical information to disambiguate phonetically ambiguous speech sounds and that they maintain this new mapping for later recognition of ambiguous sounds for a given talker. Evidence for this kind of perceptual reorganization has focused on phonetic category boundary shifts. Here, we asked whether listeners adjust both category boundaries and internal category structure in rapid adaptation to foreign accents. We investigated the perceptual learning of Mandarin-accented productions of word-final voiced stops in English...
January 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/27794357/effects-of-obstruent-voicing-on-vowel-f0-evidence-from-true-voicing-languages
#20
James P Kirby, D Robert Ladd
This study investigates consonant-related F0 perturbations ("CF0") in French and Italian by comparing the effects of voiced and voiceless obstruents on F0 to those of voiced sonorants. The voiceless obstruents /p f/ in both languages are found to have F0-raising properties similar to American English voiceless obstruents, while F0 following the (pre)voiced obstruents /b v/ in French and Italian patterns together with /m/, again similar to English [Hanson (2009). J. Acoust. Soc. Am. 125(1), 425-441]. In both languages, F0 is significantly depressed, relative to sonorants, during the closure for voiced obstruents, but cannot be differentiated from sonorants following the release of oral constriction...
October 2016: Journal of the Acoustical Society of America
keyword
keyword
69149
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"