NASA used towers until 2009 for gathering community noise data. It was thought that the integration of the data into the metrics masked the reflection issues. We now use narrow band data for research and when evaluating community noise. Reflections are visible in narrow band and 1/3 octave tower data.
Ground Based Microphones
Uninstalled Engine Standard Meeting ; 2014 ; Dayton, OH, US
Miscellaneous
No indication
English
Miniaturization of Piezoelectric Microphones
AIAA | 2010
|Miniaturization of Piezoelectric Microphones
British Library Conference Proceedings | 2010
|Vocal Responses Before Microphones
NTIS | 1954
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