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Do the following problems on paper. Scan or photograph your work and submit. 1. If one loudspeaker produces a sound pressure level of 78 dB at a distance of 3 m, and another produces a level of 8
Do the following problems on paper. Scan or photograph your work and submit.
1. If one loudspeaker produces a sound pressure level of 78 dB at a distance of 3 m, and another produces a level of 82 dB at the same distance, what would be the total sound pressure level from both? Please use the equation for this problem, not the shortcut.
2. If one trombone produces a sound pressure level of 55 dB at a distance of 5 m, how much sound pressure level would be expected from 76 trombones?
3. Calculate both the linear (unweighted) and A-weighted total sound pressure levels for the following octave-band data:
31.5 Hz
63 Hz
125 Hz
250 Hz
500 Hz
1 kHz
2 kHz
4 kHz
8 kHz
78 dB
67 dB
65 dB
56 dB
48 dB
40 dB
37 dB
36 dB
25 dB
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