Continuous judgment by category-ratio scaling of aircraft noise |
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| Institution: | 1. Peking University People''s Hospital, Beijing, China;2. Xin Hua Hospital, Shanghai, China;3. Tongji University Oriental Hospital, Shanghai, China;4. The First Hospital of China Medical University, Shenyang, Liaoning, China;5. Huashan Hospital, Shanghai, China;6. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China;7. Nan Fang Hospital, Guangzhou, Guangdong, China;1. Peking University People''s Hospital, Beijing, China;2. Xin Hua Hospital, Shanghai, China;3. Tongji University Oriental Hospital, Shanghai, China;4. The First Hospital of China Medical University, Liaoning, China;5. Huashan Hospital, Shanghai, China;6. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China;7. Nan Fang Hospital, Guangdong, China;1. Department of Surgery, Eastern Virginia Medical School, Norfolk, VA;2. Department of Psychology, Old Dominion University, Norfolk, VA;3. Carolinas Medical Center, Charlotte, NC;1. Madras Diabetes Research Foundation & Dr. Mohan''s Diabetes Specialities Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, IDF Centre of Education, Gopalapuram, Chennai, India;2. Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA |
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| Abstract: | A continuous judgment by category-ratio (CJCR) scaling method was used to evaluate the instantaneous annoyance of original and modified aircraft sounds. The result from the proposed method resulted in a temporal stream of annoyance levels for the whole flyover sequence that could be further analyzed. The test subjects were continuously rating their instantaneous annoyance on a Borg CR 100 scale® during the playback of 10 flyover sequences. Using a category-ratio (CR) scale instead of a category (C) scale, mathematical operations such as calculations of average were enabled but gave also advantages in terms of higher resolution in the responses. The results showed differences in perception in the time segment where the sound had been modified. The temporal stream of annoyance was also converted into overall judgments of the sounds, these estimations showed consistency with previous results obtained using the semantic differential and paired comparison method. |
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| Keywords: | Aircraft noise Annoyance Continuous judgment by category-ratio scaling |
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