Speech Processing System
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. The Relationship between Contralateral Suppression of Transient Evoked Otoacoustic Emission and Unmasking of Speech Evoked Auditory Brainstem Response
Abstract Introduction Several studies have shown that efferent pathways of the auditory system improve perception of speech-in-noise. But, the majority of investigations assessing the role of efferent pathways on speech perception have used contralateral suppression of otoacoustic emissions as a measure of efferent activity. By studying the effect of effere
International Archives of Otorhinolaryngology. Publicado em: 2022
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2. Is there a change in P300 evoked potential after 6 months in cochlear implant users?
Abstract Objective: There are few studies on long-latency auditory evoked potential (P300) in people with hearing loss who use a cochlear implant. Central auditory system evaluation with behavioral and electrophysiological tests is believed to help understand the neuroplasticity mechanisms involved in auditory functioning after cochlear implant surgery. Thi
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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3. Speech-evoked Brainstem Auditory Responses and Auditory Processing Skills: A Correlation in Adults with Hearing Loss
Abstract Introduction The auditory system consists of sensory structures and central connections. The evaluation of the auditory pathway at a central level can be performed through behavioral and electrophysiological tests, because they are complementary to each other and provide important information about comprehension. Objective To correlate the finding
Int. Arch. Otorhinolaryngol.. Publicado em: 2018-01
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4. Test-Retest of Long Latency Auditory Evoked Potentials (P300) with Pure Tone and Speech Stimuli
Abstract Introduction Long latency auditory evoked potentials, especially P300, have been used for clinical evaluation of mental processing. Many factors can interfere with Auditory Evoked Potential - P300 results, suggesting large intra and inter-subject variations. Objective The objective of the study was to identify the reliability of P3 components (l
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-06
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5. Brain-computer interface: proposal of a shaping-based training
INTRODUCTION: Persons affected by certain motor disabilities such as amyotrophic lateral sclerosis can evolve with important motor and speech difficulties in communication. A BCI (Brain Computer Interface) is a system that allows interaction between the human brain and a computer, permitting the user to control a communication channel through his or her brai
Rev. Bras. Eng. Bioméd.. Publicado em: 2013-06
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6. Percepção da fala em crianças usuárias de implante coclear com duas estratégias de processamento do sinal do sistema HiResolution / Speech perception in children with cochlear implants with two sound processing strategy of the HiResolution system
Improvements in speech perception with cochlear implant (CI) over the years is related, among others factors, to the technological advance of the sound processing strategy. The purpose of the present study was to investigate speech perception performance in CI children, with two different Advanced Bionics sound processing strategy. Subjects were 11 prelingua
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/10/2012
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7. Uso de parâmetros multifractais no reconhecimento de locutor / Use of multifractal parameters for speaker recognition
Esta dissertação apresenta a implementação de um sistema de Reconhecimento Automático de Locutor (ASR). Este sistema emprega um novo parâmetro de características de locutor baseado no modelo multifractal "VVGM" (Variable Variance Gaussian Multiplier). A metodologia adotada para o desenvolvimento deste sistema foi formulada em duas etapas. Inicialmente
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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8. Estudo do processamento auditivo e da supressão das emissões otoacústicas em crianças com dislexia do desenvolvimento / Study of auditory processing and suppression of otoacoustic emissions in children with developmental dyslexia
Introduction: For an adequate development of learning and writing abilities it is necessary the nervous system integrity, selective and sustained attention, auditory discrimination, short and long term memories and phonological awareness, which can be evaluated through auditory processing (AP) tests. It has been suggested that the function of the medial oliv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2011
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9. Crianças prematuras: estudo da supressão das emissões otoacústicas e da resolução temporal. / Premature children: study of suppression effect of otoacoustic emissions and temporal resolution
Objective: Determine the occurrence of the suppression of otoacoustic emissions, the temporal resolution hearing skill and the association between the results of these assessments and premature birth as well as the presence of signs suggestive of an alteration in auditory processing during development, in premature, below 2000g at birth. Methods: Forty low-i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2011
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10. STUDY OF THE HEARING ABILITIES OF CHILDREN WITH MOUTH BREATHING / ESTUDO DAS HABILIDADES AUDITIVAS DE CRIANÇAS COM RESPIRAÇÃO ORAL
This study aimed at comparing verifying the auditory nervous system maturation and analysis of the auditory abilities of temporal resolution (recognition of frequency patterns, temporal order and naming), binaural separation and integration, divided attention, auditory memory and auditory closure. Analyses of the tests, comparing their results have also been
Publicado em: 2010
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11. Um estudo comparativo de modelos baseados em estatísticas textuais, grafos e aprendizado de máquina para sumarização automática de textos em português
Automatic text summarization has been of great interest in Natural Language Processing due to the need of processing a huge amount of information in short time, which is usually delivered through distinct media. Thus, large-scale methods are of utmost importance for synthesizing and making access to information simpler. They aim at preserving relevant conten
Publicado em: 2010
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12. DISCRIMINAÇÃO FONÊMICA, PROCESSAMENTO AUDITIVO E REFLEXO ACÚSTICO EM CRIANÇAS COM DESENVOLVIMENTO DE FALA NORMAL E DESVIANTE / PHONEMIC DISCRIMINATION, AUDITORY PROCESSING AND ACOUSTIC REFLEX IN CHILDREN WITH NORMAL SPEECH DEVELOPMENT AND DEVIANT
Este estudo teve por objetivo avaliar a capacidade de discriminação fonêmica, as habilidades do processamento auditivo e os limiares do reflexo acústico em crianças com desvio fonológico e analisar uma possível associação entre estas vertentes. Além disso, os resultados foram comparados ao de crianças sem alterações fonológicas. A amostra foi c
Publicado em: 2009