Thesis

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Entwicklung eines Modulkonzeptes für die psychoakustische Geräuschanalyse unter MatLab

Authors Sontacchi, A.
Year 1999
Thesis Type Diploma thesis
Topic Psychoacoustics
Keywords signal processing
Abstract This thesis is concerned with the evaluation and scaling of psychoacoustic perceptions. These parameters are necessary for the specification of the subjective impression of noise. They are digitally computed from calibrated data stored in sound files. Complex algorithms are used to obtain these objective parameters. The algorithms based on different hearing models are described. A new computation model for the sensation of roughness and fluctuation strength as well as a new method for impulse detection are presented. The developed software-package ‘PAAS‘ (PsychoAcoustic Analysis Software) contains the computation of the psychoacoustic parameters and a calibration tool for sound files. Furthermore, additional parameters frequently used in noise measurement applications (e.g. dB(A)) can be calculated. The algorithms are implemented in MatLab 5.1.
URL http://phaidra.kug.ac.at/o:11043
Supervisors Höldrich, R., Pflüger, M.