DIN 45692-2009 Measurement technique for the simulation of the auditory sensation of sharpness《听觉清晰度仿真检测技术》.pdf

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1、Access to Additional Content for DIN 45692, Dated: August 2009 (Click here to view the publication) This Page is not part of the original publication This page has been added by IHS as a convenience to the user in order to provide access to additional content as authorized by the Copyright holder of

2、 this document Click the link(s) below to access the content and use normal procedures for downloading or opening the files. CD-RomInformation contained in the above is the property of the Copyright holder and all Notice of Disclaimer das rechte Teilbild zeigt die zugehrige gewichtete spezifische La

3、utheit Ng(z) ber der Tonheit z (Lautheits-Tonheits-Muster); der Pfeil markiert das erste Moment, das einer Schrfe S von 1,00 acum entspricht. Bild 2 Das linke Teilbild stellt die Frequenzgruppenpegel LGeines Breitbandrauschens dar; das rechte Teilbild zeigt die zugehrige gewichtete spezifische Lauth

4、eit Ng(z) ber der Tonheit z (Lautheits-Tonheits-Muster); der Pfeil markiert das erste Moment, das einer Schrfe S von 1,98 acum entspricht. Bild 3 Das linke Teilbild stellt die Frequenzgruppenpegel LGeines Hochpassrauschens oberhalb 16 Bark (3 150 Hz) dar; das rechte Teilbild zeigt die zugehrige gewi

5、chtete spezifische Lautheit Ng(z) ber der Tonheit z (Lautheits-Tonheits-Muster); der Pfeil markiert das erste Moment, das einer Schrfe S von 3,64 acum entspricht. 7 DIN 45692:2009-08 5.2 Berechnung Die Schrfe wird nach Gleichung (1) berechnet. acumd)(dBark/)()(Bark240Bark240=zzzzzzNzzzgzNkS (1) mit

6、1)( =zg fr Bark 815,z 85,015,0)()8,15Bark/(42,0+=zezg fr Bark815,z Dabei ist k die Normierungskonstante zum Abgleich der berechneten Schrfe des Referenzschalls auf 1 acum; dabei gilt 0,105 k zANMERKUNG Auf die eindeutige Kennzeichnung der Ergebnisse fr die ermittelte Schrfe entsprechend den verwende

7、ten Verfahren (nach DIN 45692 (S), nach Aures (SA) oder nach v. Bismarck (SB) sollte geachtet werden, um Unklarheiten und Verwechslungen zu vermeiden (siehe 5.2, letzter Absatz). 13 DIN 45692:2009-08 14 Literaturhinweise Aures, W. Der Wohlklang: eine Funktion der Schrfe, Rauhigkeit und Klanghaftigke

8、it. Fortschritte der Akustik, DAGA 84, DPG-GmbH, Bad Honnef, 1984, S. 735738 v. Bismarck, G. Psychometrische Untersuchungen der Klangfarbe stationrer Schalle. Akustik und Schwingungstechnik, VDI-Verlag, Dsseldorf, 1971, S. 371375 v. Bismarck, G. Timbre of steady sounds: Scaling of sharpness. Proc. 7

9、 ICA, Budapest, 1971, Vol. 3, S. 637640 v. Bismarck, G. Sharpness as an attribute of the timbre of steady sounds. Acustica, 30, 1974, S. 159172 Fastl, H. Calibration signals for meters of loudness, sharpness, fluctuation strength, and roughness. Proc. Inter-Noise 93, Vol. III, 1993, S. 12571260 Fast

10、l, H., Widmann, U. Kalibriersignale fr Mesysteme zur Nachbildung von Lautheit, Schrfe, Schwankungsstrke und Rauhigkeit. Fortschritte der Akustik, DAGA 93, DPG-GmbH, Bad Honnef, 1993, S. 640643 Widmann, U. Untersuchungen zur Schrfe und zur Lstigkeit von Rauschen unterschiedlicher Spektralverteilung. Fortschritte der Akustik, DAGA 93, DPG-GmbH, Bad Honnef, 1993, S. 644647

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