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Pages 149-150

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From page 149...
... 149 A p p e n d i x F For more detailed discussion of individual components and these terms, refer to other sources such as Sound Reinforcement Engineering (Ahnert and Steffen 2000) , "Advanced System Gain Structure" (McGregor 1999)
From page 150...
... 150 improving intelligibility of Airport Terminal public Address Systems range between 70 Hz and 15,000 Hz with a smooth, linear response, typically ± 2 dB, in the speech frequency range between 200 Hz and 4,000 Hz. Quality microphones are rugged and robust with a smooth, linear response, typically ± 2 dB, in the speech frequency range between 200 Hz and 4,000 Hz.

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