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FAA AC 20-133:1989

FAA AC 20-133:1989 Cockpit Noise And Speech Interference Between Crew Members Gives information about the relationship between flight crew cockpit voice communication and cockpit noise levels.

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Table of Contents

1PURPOSE
2BACKGROUND
3DEFINITIONS
4DISCUSSION
APPENDIX1QUANTIFYINGSPEECHINTERFERENCE
APPENDIX2COCKPITNOISEMEASUREMENT
APPENDIX3MEASUREMENTSYSTEM
APPENDIX4EXAMPLECALCULATIONOFPSIL
APPENDIX5MODIFICATIONSOFSIGNAL-TO-NOISERATIOS

Abstract

Gives information about the relationship between flight crew cockpit voice communication and cockpit noise levels.

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