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Unformatted text preview: 10*log10(2 x 106) = 10*6.3 = 63 dB IL
10 Sound level of multiple sounds Example
Example Thus, when two sounds with the same
intensity are played simultaneously, the
totally level is up by 3 dB! Not simply add up
their dB IL.
their What if two sounds are played at 80 dB SPL
simultaneously, how much is the total dB
– The same steps, however, get add the Ix NOT px Summary
Summary Acoustic power and intensity
– Definition dB IL and dB SPL for a single sound
– Formula to compute dB IL and dB SPL (Ir and pr need to
– How to computer Ix if dB IL or dB SPL is known. dB IL for multiple sounds
– ALWAYS add Ix first...
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This note was uploaded on 02/01/2014 for the course CSD 313L taught by Professor Liu during the Summer '08 term at University of Texas.
- Summer '08