@article{oai:nagasaki-u.repo.nii.ac.jp:00014249,
 author = {西田, 知照 and 竹村, 暘 and 小林, 洋一},
 issue = {28},
 journal = {長崎大学工学部研究報告, Reports of the Faculty of Engineering, Nagasaki University},
 month = {Jan},
 note = {Calls of underwater animals are full of variety. Some call has very high frequency and another one has very low frequency. The duration of some call is rather long and that of another one is very short such as a pulse. Background noise recorded with calls is quite different with the recording environment. On the other hand. the functional restriction in the analyzing apparatus also exists. We must decide the way of analysis considering the audible property of each call and the recording environment. In this report. some methods for separating the objective call from background noise is shown for some calls already recorded. The difference between analyzed results due to the difference of the way of analysis is also shown., 長崎大学工学部研究報告, 17(28), pp.1-6; 1987},
 pages = {1--6},
 title = {水中生物音のFFT解析上の問題点と対策},
 volume = {17},
 year = {1987}
}