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Instrumentation for Sound Quality Evaluation

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As a result of psychoacoustic research, a set of psychoacoustic indices has been developed which allow for an instrumental prediction of attributes of hearing events. These indices offer – in combination with acoustic workstations for aurally-adequate sound recording, standard signal analysis and signal moditication – powerful tools for the assessment, evaluation, and improvement of sounds. Nevertheless, a closer look to the instrumentally calculated measures shows that the current technique still is far from simulating human sound perception and evaluation in all its facets. They have to be more regarded as tools to evaluate specific features of sounds, and less to give a global and final evaluation result. Thus the user of instrumental methods has to be aware of the meaning of all the indices from both, the psychoacoustical and the instrumental point of view – he has to have the corresponding expertise. It is not the intention of this article to recommend one of the tools for sound quality evaluation which are available on the market. The comparison shows that the systems have different philosophies with regard to their hard- and software basis, so that the appropriate system for each user has to be selected according to his specific requirements, his working environment, and personal preferences.
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Document Type: Research Article

Publication date: September 1, 1997

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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