Auditory Masking by Ambient Noise in Black Rockfish Sebastes schlegeli.

• Motomatsu Keiichiro

  Faculty of Fisheries, Hokkaido University

• Hiraishi Tomonori

  Faculty of Fisheries, Hokkaido University

• Yamamoto Katsutaro

  Faculty of Fisheries, Hokkaido University

• Nashimoto Katsuaki

  Faculty of Fisheries, Hokkaido University

Bibliographic Information

Other Title

• クロソイ聴覚の背景雑音によるマスキング
• クロソイ チョウカク ノ ハイケイ ザツオン ニヨル マスキング

Abstract

Auditory masking was determined for the black rockfish by using white noise as masking stimuli with spectrum levels of around 70, 80 and 90dB re 1 μPa/Hz^1/2. The auditory thresholds at four frequencies from 100 to 500Hz varied with background noise, and increased from 10 to 24dB at the highest noise level as compared with thresholds in a quiet condition for each frequency. Values for the critical ratio, calculated in terms of the masked thresholds in relation to masking noise spectrum level, ranged from 27dB at 100Hz to 40dB at 500Hz. The noise spectrum levels that start masking are estimated to be 66-77dB at the test frequencies suggesting that background noise larger than those values affects hearing in the black rockfish. The thresholds are 27-40dB higher than the spectrum level of the noise.

Journal

• NIPPON SUISAN GAKKAISHI

  NIPPON SUISAN GAKKAISHI 64 (5), 792-795, 1998

  The Japanese Society of Fisheries Science

Keywords

• クロソイ
• マスキング
• 聴覚閾値
• 背景雑音
• 臨界比

Details

• CRID: 1390001206413367552
• NII Article ID: 10004854183
• NII Book ID: AN00193422
• DOI: 10.2331/suisan.64.792
• ISSN: 1349998X
• ISSN: 00215392
• NDL BIB ID: 4572524
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010580382
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4572524
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed