Submitted by Letícia Dias De Lima (leticiadiaspiano@gmail.com) on 2018-07-27T12:25:02Z No. of bitstreams: 1 Dissertação_Pós Defesa PDF.pdf: 3477366 bytes, checksum: 1926c33d823bc289e6209d7eb09bec8e (MD5) / Approved for entry into archive by Laura Mariane de Andrade null (laura.andrade@ia.unesp.br) on 2018-07-27T18:50:31Z (GMT) No. of bitstreams: 1 lima_ld_me_ia.pdf: 3477366 bytes, checksum: 1926c33d823bc289e6209d7eb09bec8e (MD5) / Made available in DSpace on 2018-07-27T18:50:31Z (GMT). No. of bitstreams: 1 lima_ld_me_ia.pdf: 3477366 bytes, checksum: 1926c33d823bc289e6209d7eb09bec8e (MD5) Previous issue date: 2018-06-29 / O objetivo deste trabalho é investigar as relações entre a percepção do ritmo musical e os métodos de treinamento auditivo utilizados na graduação em música das universidades estaduais de São Paulo. A ferramenta principal desta pesquisa são teorias e experimentos na área da cognição musical. Este é um campo que investiga as formas de aquisição, processamento e organização de informações; ou seja, atividades cognitivas relacionadas ao conhecimento. Abordamos, sob este ponto de vista, aspectos da percepção rítmica, do desenvolvimento cognitivo e do ensino e aprendizado da música. Primeiramente, são discutidos os conceitos de pulsação, acento, metro, ritmo e agrupamento, e os processos perceptivos neles envolvidos. Contextualizamos estas questões ao discorrer sobre o desenvolvimento cognitivo e aspectos do aprendizado e da memória. Por fim, buscamos compreender como a percepção rítmica é trabalhada pelos métodos utilizados na disciplina de Percepção Musical nas universidades mencionadas. As avaliações realizadas mostram que os métodos selecionados não trabalham a percepção rítmica diretamente, pois não levam o aluno a desenvolver os processos perceptivos da forma como eles ocorrem na escuta e prática interpretativa real da música. Eles se encaixam em um modelo mecanicista de ensino, em que o aprendizado consiste em treino e prática repetida de exercícios cujo foco é a emissão – em oposição à percepção – musical. A falta de aprofundamentos teóricos, da discussão de conceitos, da contextualização musical, e da abordagem de questões estilísticas e organológicas ligadas à interpretação nos faz concluir que estes métodos apenas complementam a disciplina; sua função é fornecer materiais para um treinamento auditivo, baseado especialmente no solfejo de padrões rítmicos. / This work aims to investigate relations between the perception of musical rhythm and the ear training methods used in higher education in the state universities of São Paulo. The main tool of this research are the theories and experiments in the field of music cognition. This field investigates the ways of acquiring, processing and organizing information; that is, cognitive activities related to knowledge. From this point of view, we approach some aspects of rhythm perception, cognitive development and music teaching and learning. First, we discuss the concepts of beat, accent, meter, rhythm and grouping, and the perceptual processes involved in it. We contextualize these issues by discussing the cognitive development and aspects of learning and memory. Finally, we seek to understand how the methods used in the discipline of Music Perception in the mentioned universities deal with rhythm perception. The evaluations show that the selected methods do not deal with rhythm perception directly, since they do not lead the student to develop the perceptual processes in the way they occur in real musical listening and performance. They fit into a mechanistic model of teaching, in which learning consists of training and repeated practice of exercises, whose focus is musical production – as opposed to perception. The lack of theoretical insights, discussion of concepts, musical contextualization, and approach to stylistic and organological issues related to performance leads us to conclude that these methods only complement the discipline; its function is to provide materials for ear training, based especially on the performance of rhythmic patterns.

abstract: Although many of the effects of the flute’s design and mechanisms have been previously studied, the flute’s stopper remains relatively unexplored. Stoppers are traditionally made of cork, are used to seal the upper end of the headjoint tubing, and determine the overall intonation of the flute. However, new stoppers made of different types of materials have been created to serve an additional purpose: to improve various aspects of player performance. These new non-cork stoppers vary in design and material, and claim to improve players’ projection, resonance, response, and other qualities. This research project discusses the history of the flute’s stopper and its functions, usage, and effects to improve general stopper knowledge and assist flutists interested in trying or purchasing non-cork stoppers available today. Because only three small studies have been published on the stopper’s acoustic and perceived effects to date, two single-blind experiments were conducted to determine the stoppers’ potential acoustic and perceived effects on listener and player perception. Five of the most popular stoppers available today were tested: the Bigio Stopper, Celestine Rexonator, Seidman Flute Stopper Plug, Swap-Stopper, and the traditional cork stopper. To determine the stopper’s acoustic effects, which can be quantified, an acoustic experiment was conducted to investigate the stoppers’ effect on intensity in decibels (which correlates with perceived loudness) and spectral centroid in hertz (which correlates with perceived tonal brightness). Perception tests were conducted to examine how both players and listeners perceive the stoppers’ effects on projection, response, tone quality, and timbre. The results of these experiments will help flutists better understand the effects of the stopper and navigate the stopper-makers’ claims about non-cork stoppers available for purchase today. / Dissertation/Thesis / Doctoral Dissertation Music 2020

The diploma thesis follows the bachelor's thesis Music and Time Perception (Becková, 2017). It focuses on time perception in music. It reviews current influential theories and models in the research of time perception, and also time perception models in relation to music, ie models based on the existence of internal time clocks and models based on attentional, memory and other dynamic processes. It also focuses on the psychological aspects of the metrum, rhythm and other musical characteristics in relation to time perception. Possible use of research findings in the field of time perception in music is also mentioned. In the experimental part I applied specific findings from the current research of time perception to short acoustic stimuli in the range of suprasecond intervals using reproduction as experimental paradigma. The filled- duration illusion, the divided time illusion and an effect of tone pitch were demonstrated. The findings from the experiment could be used in future research in the field of music and time perception. Klíčová slova: time perception, music perception, psychology of time

The diploma thesis follows the bachelor's thesis Music and Time Perception (Becková, 2017). It focuses on time perception in music. It reviews current influential theories and models in the research of time perception, and also time perception models in relation to music, ie models based on the existence of internal time clocks and models based on attentional, memory and other dynamic processes. It also focuses on the psychological aspects of the metrum, rhythm and other musical characteristics in relation to time perception. Possible use of research findings in the field of time perception in music is also mentioned. In the experimental part I applied specific findings from the current research of time perception to short acoustic stimuli in the range of suprasecond intervals using reproduction as experimental paradigma. The filled- duration illusion, the divided time illusion and an effect of tone pitch were demonstrated. The findings from the experiment could be used in future research in the field of music and time perception. Klíčová slova: time perception, music perception, psychology of time

No description available.

<p>This Master’s thesis presents results from two clinical hearing aid studies. Wide dynamic range compression (WDRC), a hearing aid amplification algorithm widely used in the hearing aid industry, is compared against a novel hearing aid called the Neuro-Compensator (NC), which employs a neural-based amplification algorithm based on a computational model of the auditory periphery. The NC strategy involves preprocessing an incoming auditory signal, such that when the signal is presented to a damaged cochlea, auditory nerve output is reconstructed to look similar to the auditory nerve output of a healthy cochlea for the original auditory signal. The NC and WDRC hearing aid technologies are compared across a multitude of auditory domains. Objective measures of speech intelligibility in quiet and in noise, music perception, sound localization, and subjective measures of sound quality are obtained. It was hypothesized that the NC would restore more normal auditory abilities across auditory domains, due to its proposed strategy of restoring more normal auditory nerve output. Results from the clinical hearing aid studies quantified domains in which the NC was superior to WDRC, and vice versa.</p> / Master of Science (MSc)

This dissertation concerns the computational modelling of early life development of music perception and cognition. Experimental psychology and neuroscience show results that suggest that the development of musical representations in infancy, whether concerning pitch or rhythm features, depend on exposure both to music and language. Early musical and linguistic skills seem to be, therefore, tangled in ways we are yet to characterize. In parallel, computational modelling has produced powerful frameworks for the study of learning and development. The use of these models for studying the development of music information perception and cognition, connecting music and language still remains to be explored. This way, we propose to produce computational solutions suitable for studying factors that contribute to shape our cognitive structure, building our predispositions that allow us to enjoy and make sense of music. We will also adopt a comparative approach to the study of early development of musical predispositions that involves both music and language, searching for possible interactions and correlations. We first address pitch representation (absolute vs relative) and its relations with development. Simulations have allowed us to observe a parallel between learning and the type of pitch information being used, where the type of encoding influenced the ability of the model to perform a discrimination task correctly. Next, we have performed a prosodic characterization of infant-directed speech and singing by comparing rhythmic and melodic patterning in two Portuguese (European and Brazilian) variants. In the computational experiments, rhythm related descriptors exhibited a strong predictive ability for both speech and singing language variants' discrimination tasks, presenting different rhythmic patterning for each variant. This reveals that the prosody of the surrounding sonic environment of an infant is a source of rich information and rhythm as a key element for characterizing the prosody from language and songs from each culture. Finally, we built a computational model based on temporal information processing and representation for exploring how the temporal prosodic patterns of a specific culture influence the development of rhythmic representations and predispositions. The simulations show that exposure to the surrounding sound environment influences the development of temporal representations and that the structure of the exposure environment, specifically the lack of maternal songs, has an impact on how the model organizes its internal representations. We conclude that there is a reciprocal influence between music and language. The exposure to the structure of the sonic background influences the shaping of our cognitive structure, which supports our understanding of musical experience. Among the sonic background, language's structure has a predominant role in biasing the building of musical predispositions and representations. / Esta tesis aborda la modelización computacional de algunos fenómenos de la percepción y cognición de la música durante el período de desarrollo en la primera infancia. La Psicología experimental y la Neurociencia muestran resultados que sugieren que el desarrollo de las representaciones del ritmo o de la altura musicales durante la infancia son dependientes de la exposición tanto a la música como al lenguaje de las culturas en las que se nace y crece. La capacidad musical y lingüística, durante los primeros años de desarrollo, están inter-relacionadas de formas que aún no ha sido posible caracterizar. En paralelo, las herramientas computacionales proporcionan un marco teórico y empírico eficaz para el estudio del aprendizaje y el desarrollo. El uso de los modelos computacionales para estudiar el desarrollo de la percepción y la cognición de información musical, conectando la música y el lenguaje, todavía queda por explorar. Así, nos proponemos producir soluciones computacionales adecuadas para el estudio de los factores que contribuyen a dar forma a nuestra estructura cognitiva y a la construcción de las predisposiciones que nos permiten disfrutar y dar sentido a la música. También adoptamos una perspectiva comparativa para la investigación que, englobando la música y el lenguaje, busca sus posibles interacciones y correlaciones. Primeramente, hemos abordado la representación de la altura tonal (absoluta vs. relativa) y sus relaciones con el desarrollo. Las simulaciones computacionales han permitido observar que el tipo de codificación utilizada ha influido en la capacidad del modelo para efectuar correctamente una tarea de discriminación, lo cual sugiere una relación entre el aprendizaje y el tipo de información de altura que se utiliza. Seguidamente, se ha realizado una caracterización prosódica del habla y del canto dirigidos al bebé, mediante la comparación de patrones rítmicos y melódicos en dos variantes de Portugués (Europeo y Brasileño). En los experimentos computacionales, los descriptores relacionados con el ritmo han exhibido una fuerte capacidad predictiva para el habla y canto, en tareas de discriminación de variante de lenguaje, siendo observados diferentes patrones rítmicos para cada variante. Se revela que la prosodia del entorno sonoro de un bebé es una fuente rica de información y que el ritmo es un elemento fundamental para la caracterización de la prosodia del lenguaje y las canciones de una cultura. Por último, se construyó un modelo computacional basado en el procesamiento y representación de información temporal para explorar cómo los patrones prosódicos temporales del habla de una cultura específica influyen en el desarrollo de las representaciones y predisposiciones rítmicas. Las simulaciones muestran que la exposición al ambiente sonoro circundante influye en el desarrollo de las representaciones temporales y que la estructura del entorno a que se esta expuesto, específicamente, la falta de canciones maternales, tiene un impacto sobre la forma como el modelo organiza sus representaciones rítmicas internas. Se concluye que existe una influencia recíproca entre la música y el lenguaje. La exposición a la estructura del entorno sonoro influye en la formación de la estructura cognitiva, que sustenta la comprensión de la experiencia musical. De entre todos los “inputs” del entorno sonoro, la estructura del lenguaje tiene una influencia predominante en la construcción de predisposiciones y representaciones musicales.

This dissertation aims to explore the nature of early social preferences by testing attention to a cue that might have evolved as a reliable signal of shared group membership – shared cultural knowledge. Part 1 shows that children attend to this cue when making social choices: Children both prefer others who know songs they themselves know, and avoid others who know songs they do not know, while other cues such as shared preferences for songs are not as powerful drivers of social preferences. Part 2 shows that this cue affects how five-months-old infants allocate attention to human singers. After listening to two individuals singing different songs, infants look longer at singers of familiar songs than at singers of unfamiliar songs. When both songs are unfamiliar, infants do not show preferences for singers of songs that follow or violate Western melodic structure, although they are sensitive to these differences. In focusing on familiar songs but not musical styles, infants may selectively attend to information that might mark group membership later in life, namely shared knowledge of specific songs. Part 3 investigates whether children are selective in the properties they use to infer that two individuals belong to the same group, targeting two potentially important social cues: race and gender. Specifically, Part 3 asks if children attribute shared musical knowledge to individuals of the same race or gender. Four-year-olds attribute shared knowledge to individuals of the same gender, but not of the same race. Five-year-olds attribute shared knowledge to individuals of the same race, but not of the same gender. In contrast, a control unrelated to group-membership – attributions of shared musical preferences – do not yield any dissociation between attributions based on race or gender. Thus, as they gain experience, children seem to adaptively update the social cues they use to infer shared group-membership. Together these results begin to elucidate the mechanisms underlying early social preferences by showing that children might selectively attend to the most reliable cues to shared group-membership, which, in turn, might allow them later in life to participate in the complex social organization that is unique to human societies. / Psychology

This diploma thesis is focused on music therapy and related activities that were used to adapt children to nursery school. The theoretical part describes children adaptation and music therapy in general - history, definitions, methods and effects on pre-school children. The practical part contains a methodical list of music therapy activities that were applied on two and three-year-old children. The conclusion of my thesis indicates that repeatedly using specific music therapy activities makes adaptation less problematic.

Cochlear implant (CI) devices afford many profoundly deaf individuals worldwide partially restored hearing ability. Although CI users achieve remarkable speech perception with contemporary multichannel CI devices, their music perception ability is generally unsatisfactory. Improved CI-mediated music perception ability requires that the underlying constraints hindering processing of music-relevant information need to be identified and understood. This study puts forward a systematic approach, informed by the neurocognitive mechanisms underlying music perception in normal hearing (NH), for investigating implant-mediated music perception. Psychoacoustical experiments were used to explore the extent to which music-relevant information delivered to the central auditory system following peripheral electrical stimulation supports music perception. Task-specific stimuli and test procedures were developed to assess perception of pitch, rhythm and loudness information, both as separate and in combined form, in sound-field listening conditions. CI users’ unsuccessful judgement of the musical character of short, novel single-voice melodies suggests that insufficient information reaches the central auditory processing system to effect a unified musical percept. This is despite sound field frequency discrimination behaviour being better than had been expected and rhythm perception ability with regard to short tone sequences of varying pitch and rhythmic complexity being comparable to that of NH listeners. CI listeners also performed similarly to NH listeners during pitch-dependent loudness perception tasks. Within the framework of a hierarchical, modular processing system underlying music perception, it appears that early pitch processing deficits propagate throughout the music processing system to exert an overriding inhibitory perceptual effect. The outcomes of this study not only underline the importance of delivering sufficient pitch information to the electrically stimulated auditory system but also show that music perception in CI-mediated hearing should be investigated and understood as the outcome of an integrated perceptual system. / Thesis (PhD)--University of Pretoria, 2011. / Electrical, Electronic and Computer Engineering / Unrestricted