assignment 7 loudness

assignment 7 loudness - The complex tone is louder because...

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PSYC 4165 Homework 7: Amplitude vs. Loudness Part 1: dB SPL (N/m 2 ) Sones 40 0.002 0.999335529 50 0.006324555 1.993936521 60 0.02 3.978426399 70 0.063245553 7.938004267 80 0.2 15.83840077 90 0.632455532 31.60176419 100 2 63.05380917 110 6.32455532 125.8088892 To double its loudness a sounds SPL must be increased by a factor of 2^(1/0.6) = 3.1748. Part 2: S 1 = 41.6*(10^(60/20)*0.00002)^0.6 = 3.978 Sones S 2 = 4*41.6*0.01^0.6 = 10.5 Sones
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Unformatted text preview: The complex tone is louder because the individual components, while only half the sound pressure and at 54 dB each, are treated individually. Since sound pressures when analyzed together are not additive and the loudness is a logarithmic function of sound pressure, multiple loudnesses are louder than multiple sound pressures adding to one loudness....
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This note was uploaded on 04/03/2008 for the course PSYC 4165 taught by Professor Harvey,lew during the Spring '08 term at Colorado.

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