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Sound Pressure Level (SPL)
On the factory shop floor the following sound pressure levels were measured:
Octave Band Centre Frequency (Hz) : 63 125 250 500 1K 2K 4K 8K Band SPL (db(LIN)): 110 110 108 106 106 106 104 100 While in this area all workers must wear hearing protectors whose attenuations Characteristic rises from 10dB at 63Hz by 2dB/octave up to 8kHz. The dB(A) network is Given as follows- Octave Band Centre Frequency (Hz) : 63 125 250 500 1K 2K 4K 8K Weighting dB : -26 -16 -9 -3 0 +1 +1 -1 Calculate: a) The total linear SPL. b) The overall A-weighted SPL experienced by a worker on the shop floor. Thanks... |
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