Improving the Intelligibility of Aircraft PA Systems

Mapp P. Improving the Intelligibility of Aircraft PA Systems. In: AES Convention 111. Audio Engineering Society; 2001. Paper 5431. Available from: https://aes.org/publications/elibrary-page/?id=9863

@inproceedings{Mapp2001_9863,
  author = {Mapp, Peter},
  title = {{Improving the Intelligibility of Aircraft PA Systems}},
  booktitle = {AES Convention 111},
  note = {Paper 5431},
  year = {2001},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9863}
}

TY  - CPAPER
TI  - Improving the Intelligibility of Aircraft PA Systems
AU  - Mapp, Peter
T2  - AES Convention 111
M1  - Paper 5431
PY  - 2001
DA  - 2001/11/06
UR  - https://aes.org/publications/elibrary-page/?id=9863
PB  - Audio Engineering Society
LA  - en
AB  - A survey carried out by the authors on a range of commercial Jet Aircraft whilst in normal flight, found a wide variation in perceived intelligibility and operational signal to noise ratios of their on-board PA systems. Typical passenger cabin background noise levels of 80-85 dBA (100 -105 dBC) were recorded, whilst many systems were found to operate with either zero or negative S/N ratios. The results of extensive mock up testing are reported. It is shown that high frequency dispersion is a major factor contributing to the perceived intelligibility. The use of Distributed Mode Loudspeaker technology was found to bring about significant improvements in clarity & intelligibility but the effectiveness of Rasti as an accurate intelligibility descriptor under these conditions is questioned.
ER  -