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Further Study on Psychoacoustical Tuning Curves

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Masker tone pulse levels required to mask a probe tone pulse of 16 ms duration and 15 dB SL were measured in the frequency region from 0.25 to 8 kHz. Maskee pulses had different envelopes and degree of “immersion” into the masker pulse. Comparatively larger steepness of upper the flanks of the psychoacoustical tuning curves are obtained, reaching 3500 dB/oct at 4 kHz. However, the results were found to be strongly dependent on the skill and performance of subjects used.

Zusammenfassung

Es wurden die Pegel von verdeckenden Tonimpulsen, die zur Markierung eines Testtonimpulses von 16 ms Dauer und einem Schalldruckpegel von 15 dB erforderlich sind, im Frequenzbereich von 0,25 … 8 kHz gemessen. Die verdeckten Impulse hatten verschiedene Einhüllende und tauchten in unterschiedlichem Maße in den verdeckenden Impuls ein. Die Steilheit der oberen Flanken der psychoakustischen Tuningkurven erwies sich als relativ groß und erreichte bei 4 kHz 3500 dB pro Oktave. Es zeigte sich indessen, daß die Ergebnisse stark von der Geschicklichkeit und der Leistungsfähigkeit der herangezogenen Versuchsperson abhängen.

Sommaire

On a mesuré les niveaux des impulsions tonales nécessaires pour masquer une impulsion tonale de référence (durée: 16 ms, niveau: 15 dB SL) dans la bande des fréquences de 0,25 à 8 kHz. Les impulsions à masquer avaient différentes enveloppes et divers «degrés d'immersion» dans l'impulsion masquante. Pour les flancs supérieurs des courbes d'accord psychoacoustiques, on a obtenu une raideur comparativement accentuée, pouvant s'élever jusqu'à 3500 dB/octave à 4 kHz. Cependant il s'est trouvé que ces résultats dépendaient étroitement de l'habileté et des capacités personnelles des sujets testés.
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Document Type: Research Article

Publication date: October 1, 1991

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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