Improving Intelligibility of Airport Terminal Public Address Systems (2017) / Chapter Skim
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Pages 143-144
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From page 143... ...
143 ACT Acoustical tile A/D Analog to digital ADA Americans with Disabilities Act ADS Acoustically distinguishable space AHJ Authority having jurisdiction ANN Announce or announcement ANSI American National Standards Institute AODB Airport operational database APM Automated people mover ASHRAE Formerly known as the American Society of Heating, Refrigeration and Air-conditioning Engineers ASTM American Society for Testing Materials A/V Audiovisual CCD CCD Ergonomic and Design Consultants CSA Cross-Spectrum Acoustics, Inc. D/A Digital to analog dBu Decibel unit of measure for electrical noise DSP Digital signal processor EPA U.S.
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From page 144... ...
144 improving intelligibility of Airport Terminal public Address Systems PBX Private branch exchange (phone server) PhD Doctorate of Philosophy RASTI Rapid speech transmission index RT, RT60 Reverberation time SA Surface area SNR Signal-to-noise ratio SPL Sound pressure level STI Speech transmission index STC Sound transmission class STIPA Speech transmission index for PA THD Total harmonic distortion TTS Text-to-speech VA Voice address
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