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Wysłany: Nie 6:07, 26 Gru 2010 Temat postu: ed hardy clothing Different frequencies and loudne |
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Different frequencies and loudness of the sound performance of the auditory judgments
1dB144Hz × 60.9dB, 621Hz × 73.7dB, 5553Hz × 93.1dB4144Hz × 60.9dB,[link widoczny dla zalogowanych], 299Hz × 67.2dB, 1289Hz × 80.1dB, 5553Hz × 93.1dB According to Table 3, when the voice encoding requires 2 sound. The best option is to use a frequency of 144Hz 60.9dB of sound and loudness as the frequency of 5553Hz voice loudness is 93.1dB; need 3 sound. The best solution is using the frequency 144Hz Loudness is 60.9dB sound, the frequency is 67.2dB for the 299Hz Loudness sound of the loudness and frequency is 93.1dB for the 5553Hz sound; if we need 4 sound. The best option is to use a frequency of 144Hz to 60.9dB of sound loudness,[link widoczny dla zalogowanych], frequency of 299Hz to 67.2dB of sound loudness, frequency of 1289Hz loudness as 8O. 1dB frequency of the sound and loudness as 93.1dB 5553Hz sound. Table 3 for two-dimensional sound frequency and loudness of the choice of coding system to provide a scientific reference. 5 Conclusion The above data analysis. In this study,[link widoczny dla zalogowanych], the following conclusions: (1) after short exercise, people can be on different frequencies and different loudness of the sound under the conditions of an absolute identification of 6, the average accuracy rate was 72.71%, the average response time was 644.5ms . (2) based on absolute identification of the correct rate, reaction time and the confusion matrix, people of different frequency and different loudness of the sound options under the 6 priorities are: 144Hz × 60.9dB, 5553Hz × 93.1dB, 2675Hz × 86 .6 dB, 299Hz × 67.2dB, 1289Hz × 80.1dB, 62lHz × 73.7dB References: [1] Zhu Zuxiang, Lie-Zhong Ge, Zhang Zhijun. Engineering Psychology [M]. Beijing. People's Education Press, 2000. [2] PollackI. Theinformationofelementaryauditorydisplays [J]. JournaloftheAcousticalSocietyofAmerica, 1952,[link widoczny dla zalogowanych],24 (1) :745-749. [3] GarnerWR. Aninformationalanalysisofabsolutejudg-mentsofloudness [J]. JournalofExperimentalPsycholo-gY, 1953,46 (1) :373-380. [4] PollackI. Theinformationofelementaryauditorydisplays. II [J]. JournaloftheAcousticalSocietyofAmerica, 1953,25 (1): 765.769. [5] StephenAB. Usingnon-speechsoundtoovercomeinfonna-tionoverloaddisplays [J]. Displays, 1997,17 (3) :179-189. [6] NeuhoffJG, McBeathMK, WanzieWC. Dynamicfre-quencychangeinfluencesloudnessperception: Acen ~ al,[link widoczny dla zalogowanych], analyticprocess [J]. JournalofExperimentalPsychology: HumanPercepfionandPerformance, 1999,25 (4) :1050-1059. [7] NeuhoffJG. Anadaptivebiasinthepemepfionofloomingauditorymofion [J]. EcologicalPsychology, 2001,13 (2): 87.1】 0. [Received Date] 2004-08.20 [Revised] 2005. O1.04
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