Psychoacoustic Model
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Psychoacoustic behavior of human listeners in lateralization judgments of binaural stimuli
Abstract Introduction The present work aims to develop statistical models for the psychoacoustic behavior of human beings in lateralization judgments of binaural acoustic stimuli, as a function of Interaural Time Delay (ITD) and Interaural Amplitude Difference (IAD) for several Sensation Levels (SL). Such models intend to contribute to a deep comprehension
Res. Biomed. Eng.. Publicado em: 12/01/2017
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2. Limiares eletrofisiológico e psicoacústicos por via óssea em indivíduos normais e com perda auditiva. / Electrophysiological and psychoacoustic thresholds bone in normal hearing impaired
To investigate the electrophysiological thresholds obtained by bone and compared them with the psychoacoustic thresholds obtained in pure tone audiometry in adults with normal hearing and with different types and degrees of hearing loss. Methods: The sample consisted of 70 subjects, 35 men and 35 women (30 normal, 10 with conductive hearing loss, 10 with mil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2011
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3. Soundscape design through evolutionary engines
Two implementations of an Evolutionary Sound Synthesis method using the Interaural Time Difference (ITD) and psychoacoustic descriptors are presented here as a way to develop criteria for fitness evaluation. We also explore a relationship between adaptive sound evolution and three soundscape characteristics: key-sounds, key-signals and sound-marks. Sonic Loc
Journal of the Brazilian Computer Society. Publicado em: 2008-09
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4. Processos de composição microtonal por meio do modelo de dissonancia sensorial / Microtonal compositional processes via the sensory dissonance model
On the present research, Tuning Systems were studied in order to investigate its application in Creative Processes. For such, we created a distinction of compositional approaches in the music of the 20th Century, and we also studied mechanisms of scale development by mainly adopting Psychoacoustics (i.e. Roughness Model), which enabled the development of a c
Publicado em: 2007
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5. Estudo e Aperfeiçoamento do Vocoder de Transformada Senoidal
The basic sinusoidal analysis/synthesis system is presented and recent parameters codification techniques are studied. In addition, new methods for improving the speech quality of Sinusoidal Transform Vocoders at 2,4 and 4,8 Kbps are presented. One of them is a refinement in the pitch estimation, since pitch accuracy is essential for the efficiency of the ha
Publicado em: 2004
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6. Um metodo de compressão de audio baseado na codificação de Subbandas Wavelets
This work presents a method for audio compression based on wavelets sub-band quantization and coding, and proposes a coder based on that method. First, the work describes the Wavelet Transform with emphasis on the concepts of multi-resolution analyzes and their relationship with filtering processes and decomposition in sub-bands. A description of the Wavelet
Publicado em: 2001