Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"Psychoacoustics"”.
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Towards a neurophysiological correlate of the precedence effect: from psychoacoustics to electroencephalography
… processed. Investigations were made by means of psychoacoustics and auditory evoked potentials (AEPs). Elaborate preparative psychoacoustical measurements were performed in order to investigate the perception of stimuli that evoke the precedence effect under conditions of AEP recordings, i.e., …
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Soundgen : a Web services based sound generation system for the psychoacoustics laboratory
… sound generation system developed for the MIT Psychoacoustics Laboratory Course 6.I82. The sounds created by Soundgen are combinations of various tones and noises, produced by a dedicated server running Linux, MATLAB, Apache, and PHP. As an example, Soundgen can generate a sound containing two …
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Psychoacoustic Entropy Theory and Its Implications for Performance Practice
… compared to available scientific research in psychoacoustics. Rather than analyze a musical excerpt, psychoacoustic entropy is calculated directly from sound pressure waves themselves. This frames psychoacoustic entropy theory in the most general possible terms as a theory of musical harmony, …
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Playing the Ear: Non-Linearities of the Inner Ear and their Creative Potential
… employing them as primary compositional devices. Psychoacoustics research into the non-linearities of the inner ear has proven that the inner ear has much more to offer the composer than has been previously considered. By reversing the role of the ear from, what Christopher Haworth describes as, …
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Timbre perception of cultural insiders : a case study with Javanese gamelan instruments
… from the fields of ethnomusicology and psychoacoustics to address fundamental questions concerning music perception. Ethnomusicology emphasizes cultural context when examining the different ways musical sounds are organized. Psychoacoustics explores the relationships between perceptual …
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Mouse auditory perception of temporal features of sound
… species. The present dissertation focusses on psychoacoustics and investigates two aspects of temporal processing in the mouse, a) the ability to discriminate signals of different duration (duration discrimination), and b) the ability to exploit correlated amplitude fluctuations in a noise …
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Hypercompression : stochastic musical processing
… of mathematics, the physics of sound, psychoacoustics, and traditional music theory In Hypercompression, Stochastic Musical Processing we explore the design and implementation of three innovative musical projects that build on a deep vertical integration of science and technology in …
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Factors influencing acoustical localization
… system to distortions of the individual HRTFs, psychoacoustics discrimination experiments are described, in which temporal and spectral properties of the HRTFs are varied. These experiments were conducted in non-reverberant and reverberant environments. Lastly, the effect of a monaural spectral …
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Estimating uncertainty models for speech source localization in real-world environments
… of speech in a way that is similar to the psychoacoustics of the precedence effect. For source separation, we use the same weighting function as part of a simple probabilistic generative model of localization cues. We combine this localization cue model with a mixture model of speech …
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The performer’s experience: psychological, philosophical and educational perspectives
… - predominantly sports psychology and psychoacoustics, but latterly, also with education and philosophy. The purpose of this Critical Analysis is to specify originality and coherence within the portfolio and to evaluate its strengths and weaknesses. The contemporary relevance of the …
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Soundscape and the Experience of Positive Silence
… through quiet space studies, acoustics and psychoacoustics as well as research in the field of psychology around the human experience of solitude, mindful awareness and distraction. This doctoral research draws upon the insights of these disciplines to inform both the artworks and thinking …
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Predicting lateralization performance at high frequencies from auditory-nerve spike timing
… for PT, SAM tones and TS using neurophysiology, psychoacoustics and computational models. Phase locking of auditory-nerve fibers in anesthetized cats was characterized using both the synchronization index and autocorrelograms. With both measures, phase locking is stronger for PT than TS, and for …
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The perception of timescales in electroacoustic music
… theories in the fields of psychology and psychoacoustics. In parallel, it identifies and systematically analyses a set of factors that influence time perception and the formation and segregation of timescales. Theoretical analysis, hypotheses and reasoning were practically tested in the …
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Signal detection in the auditory midbrain : neural correlated and mechanisms of spatial release from masking
… use neurophysiology, computational modeling, and psychoacoustics to investigate the neural mechanisms of spatial release from masking, and we focus on low frequencies, which are important for speech recognition and are often spared in hearing-impaired listeners. Previous studies suggest that at …
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Material Evidence
… the study of music cognition, semiotics, and psychoacoustics with the intent of tapping into the cognitive mechanisms of the human mind and better understanding how to communicate through music. Work began by slowing recorded performances to approximately one-tenth normal playback speed and …
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Nonuniform subbard coding of high quality audio signals employing frequency warping
… coding is described. Firstly, some aspects of psychoacoustics, especially masking effects, are studied. Utilising psychoacoustic models, perceptual entropies are calculated for a number of audio excerpts and it is shown that theoretically the bit rate can be reduced to lower than 2 bits per …
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Lossy compression of speech using perceptual criteria
… of the background studies covered aspects of psychoacoustics, in particular the effects of the human outer, middle and inner ear. Models approximating each region of the ear are utilised and concatenated into a single overall auditory response path model. As the objective of the research is to …
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An Investigation into the Use of Artificial Intelligence Techniques for the Analysis and Control of Instrumental Timbre and Timbral Combinations
… between musical timbre, auditory perception and psychoacoustics for sounds emerging from instrument mixtures. It resulted in choosing to use verbal descriptors of timbral qualities to represent auditory perception of instrument combination sounds. Therefore, this thesis reports on the …
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Prediction-driven computational auditory scene analysis
… understanding of this process from experimental psychoacoustics have led to several efforts to build a computer model capable of the same function. This work is known as 'computational auditory scene analysis'. The dominant approach to this problem has been as a sequence of modules, the output of …
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A Thousand Bells: Acoustical implementation of bell spectra using the finite element method and its compositional realization
… of consonance and Just Noticeable Difference in psychoacoustics are applied to use the 96 tone equal temperament tuning system for bell harmonic profiles. The third chapter includes the theoretical basis of the FEM and its application to the isoparametric 2-D quadrilateral elements, which are the …
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