著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Ichikawa Osamu and Fukuda Takashi and Tachibana Ryuki,Effective speech suppression using a two-channel microphone array for privacy protection in face-to-face sales monitoring,Acoustical Science and Technology,13463969,一般社団法人 日本音響学会,2015,36,6,507-515,https://cir.nii.ac.jp/crid/1390001205088646144,https://doi.org/10.1250/ast.36.507