Speech Segmentation
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. A novel word boundary detector based on the teager energy operator for automatic speech recognition
This work is part of a major research project and contributes into the development of a speaker-independent speech recognition system for isolated words from a limited vocabulary. It proposes a novel spoken word boundary detection method named TEO-based method for Spoken Word Segmentation (TSWS). Based on the Teager Energy Operator (TEO), the TSWS is present
Publicado em: 2010
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2. Aquisição de fonologia : a influiência do acento e o preenchimento de unidades prosódicas em dados de fala de duas crianças entre 1;0.4 e 2;1.10 de idade, em contato com o português brasileiro falado em Alagoas e Pernambuco. / Acquisition of phonology: the influience accent and segment completion of prosodic units in speech data from two children between the ages of 1;0.4 e 2;1.10 and who were exposed to Brazilian Portuguese spoken in the states of Alagoas and Pernambuco.
The study delves into the influence of accent and segment completion of prosodic units in speech data from two children between the ages of 1;0.4 and 2;1.10 and who were exposed to Brazilian Portuguese spoken in the states of Alagoas and Pernambuco. It was hypothesized that grammatical processing stems from two concurrent movements in opposing directions dur
Publicado em: 2010
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3. Manifestações sintomáticas na escrita e a clínica de linguagem
Based on written work of children undergoing phonological therapy, the discussion about the symptom aims to stand away from the language conception as object of knowledge. Such a distance is justified by considering that the language is not consisted of positive units which could be apprehended by the individual through his or her perception and cognition (A
Publicado em: 2009
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4. Segmentação de voz baseada na análise fractal e na transformada wavelet. / Speech segmentation based on fractal analysis and wavelet transform.
Nowadays, fractal analysis has been successfully applied to digital speech processing, particularly for words and phonemes segmentation, which represents one of the fundamental steps in automatic speech recognition and speaker identification systems. The practical use of fractal analysis for these purposes should match two principles: low computational cost,
Publicado em: 2008
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5. Sistema baseado em regras para o refinamento da segmentação automatica de fala / Rule based system for refining the automatic speech segmentation
A demanda por uma segmentação automática de fala confiável vem crescendo e exigindo pesquisas para suportar o desenvolvimento de sistemas que usam fala para uma interação homem-máquina. Neste contexto, este trabalho relata o desenvolvimento e avaliação de um sistema para segmentação automática de fala usando o algoritmo de Viterbi e refinamento d
Publicado em: 2008
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6. AVALIAÇÃO DA LINGUAGEM DE SUJEITOS COM HISTÓRICO DE DESVIO FONOLÓGICO APÓS TERAPIA FONOLÓGICA
Purpose: to verify if there are differences in performance on phonological awareness abilities between an experimental group with a history of speech disorders after speech therapy, and a control group. Methods: eighteen individuals, nine in the experimental group and nine in the control group, participated in the study and were evaluated for phonological aw
Publicado em: 2008
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7. CLASSIFICAÇÃO E SEGMENTAÇÃO DE ÁUDIO A PARTIR DE FATORES DE ESCALA MPEG / CLASSIFICATION AND SEGMENTATION OF MPEG AUDIO BASED ON SCALE FACTORS
With the growth of production and storing of digital media, audio segmentation and classification are becoming increasingly important. This work is based on characteristics of the MPEG standard, considered to be the standard for digital media storage and retrieval, to propose efficient algorithms to perform these tasks. While there are many studies based on
Publicado em: 2007
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8. A SEGMENTAÇÃO DE MERCADO E A COMUNICAÇÃO PUBLICITÁRIA NO TURISMO: o modelo de Plog em anúncios veiculados por revista especializada
The Advertising has as social function to inform, to divulge and to stimulate the consuming market to satisfy its emotional and physical needs and the tourism while socioeconomic phenomenon finds in the persuasives speeches advertising executives a fertile land to promote its products and services that are involved for an atmosphere of magic and seduction. T
Publicado em: 2007
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9. Efeitos da Segmentação em Sistemas Híbridos ANN+HMM
The Hidden Markov Models has become the widely used speech recognition framework due to its solid probabilistic approach. However, this robustness is damaged when the Markov chains are trained under the maximum likelihood method, which is poor in discriminative power. Until now several efficient techniques and algorithms have been developed to increase the p
Publicado em: 2005
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10. Segmentação automatica e treinamento discriminativo aplicados a um sistema de reconhecimento de digitos conectados
Hidden Markov Model is actually the main approach to Speech Recognition problem, because of the good performance and high degree of flexibility that can be achieved. Unfortunately, this acoustical modeling is not optimum and some problems still affect it s robustness and performance in a more realistic condition. The weakness of the temporal modeling embedde
Publicado em: 1999
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11. Cross-language differences in cue use for speech segmentation
Two artificial-language learning experiments directly compared English, French, and Dutch listeners’ use of suprasegmental cues for continuous-speech segmentation. In both experiments, listeners heard unbroken sequences of consonant-vowel syllables, composed of recurring three- and four-syllable “words.” These words were demarcated by (a) no cue other
Acoustical Society of America.
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12. Pre-semantically defined temporal windows for cognitive processing
Neuronal oscillations of different frequencies are hypothesized to be basic for temporal perception; this theoretical concept provides the frame to discuss two temporal mechanisms that are thought to be essential for cognitive processing. One such mechanism operates with periods of oscillations in the range of some tens of milliseconds, and is used for compl
The Royal Society.