Record Details

Record 1 of 1
An evaluation of methods for scaling aircraft noise perception
NTRS Full-Text: Click to View  [PDF Size: 5.8 MB]
Author and Affiliation:
Ollerhead, J. B.(Wyle Labs., Inc., Hampton, VA, United States)
Abstract: One hundred and twenty recorded sounds, including jets, turboprops, piston engined aircraft and helicopters were rated by a panel of subjects in a paired comparison test. The results were analyzed to evaluate a number of noise rating procedures in terms of their ability to accurately estimate both relative and absolute perceived noise levels. It was found that the complex procedures developed by Stevens, Zwicker and Kryter are superior to other scales. The main advantage of these methods over the more convenient weighted sound pressure level scales lies in their ability to cope with signals over a wide range of bandwidth. However, Stevens' loudness level scale and the perceived noise level scale both overestimate the growth of perceived level with intensity because of an apparent deficiency in the band level summation rule. A simple correction is proposed which will enable these scales to properly account for the experimental observations.
Publication Date: Oct 01, 1971
Document ID:
19720005339
(Acquired Nov 22, 1995)
Accession Number: 72N12988
Subject Category: AIRCRAFT
Report/Patent Number: NASA-CR-1883
Document Type: Technical Report
Publisher Information: NASA, Washington, United States
Contract/Grant/Task Num: NAS1-9257
Financial Sponsor: NASA; United States
Organization Source: Wyle Labs., Inc.; Hampton, VA, United States
Description: 147p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ACOUSTIC MEASUREMENT; AIRCRAFT NOISE; AUDITORY STIMULI; EFFECTIVE PERCEIVED NOISE LEVELS; NOISE INTENSITY; PSYCHOACOUSTICS; RATINGS; SOUND WAVES
› Back to Top
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed
Find Similar Records
 
NASA Logo, External Link

NASA Official: Gerald Steeman
Sponsored By: NASA Scientific and Technical Information Program
Site Curator: NASA Center for AeroSpace Information (CASI)
Last Modified: August 29, 2013

Privacy Policy & Important Notices Disclaimers, Copyright, Terms of Use Freedom of Information Act USA.gov NASA.gov NASA OCIO Free Adobe PDF Reader Free MS Word Viewer