Subjective Evaluation on the Annoyance of Environmental Noise Containing Low-Frequency Tonal Components
| Autor: | Shinichi Sakamoto, Miki Yonemura, Hyojin Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
subjective evaluation
Health Toxicology and Mutagenesis Acoustics Ambient noise level Annoyance Low frequency 01 natural sciences Article 03 medical and health sciences 0302 clinical medicine tonal audibility Japan Caffeine 0103 physical sciences Evaluation methods 030223 otorhinolaryngology Tonal noise Environmental noise environmental noise 010301 acoustics Mathematics annoyance Public Health Environmental and Occupational Health Noise Sound Attitude QUIET Medicine |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 18, Iss 7127, p 7127 (2021) International Journal of Environmental Research and Public Health Volume 18 Issue 13 |
| ISSN: | 1661-7827 1660-4601 |
| Popis: | Recently in Japan, noises from wind turbines and domestic use heat sources sometimes cause an increase in noise annoyance owing to low-frequency tonal components. The purpose of this study was to investigate the effects of the tonal components on the annoyance of the environmental noise. The authors conducted an auditory test in the laboratory to evaluate the annoyance of tonal noise using a seven-step rating method. The stimuli were composed of a broadband noise modeling of the environmental noise (25, 30, and 35 dB) and a low-frequency tonal component. With the tonal component added to the broadband noise, the frequency and tonal audibility were varied to 40, 50, 100, 200, and 400 Hz and 0, 3, 6, 9, and 12 dB, respectively. The amount of increase in annoyance owing to the addition of the tonal component was quantitatively evaluated as a tonal adjustment by comparing it with broadband noise. As a result, tonal adjustment ranged from 0 to 7 dB, and the higher the tonal frequency, the larger the value. For the test background noise level, the lower the background noise level of the test sound, the greater the value. This trend suggests that the influence of tonal components on subjective impressions is stronger in quiet environments such as residential areas. This result may provide a basis for the evaluation method, which varies the penalty in the noise evaluation according to the frequency of the pure tones and the noise level. |
| Databáze: | OpenAIRE |
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