{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"IEC 60318-2 Ed. 1.0 b:1998, Electroacoustics - Simulators of human head and ear - Part 2: An interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range","author_name":"IEC TC/SC 29","thumbnail_url":"https://www.ebooknetworking.net/books/B00/0Y2/bigB000Y2SH04.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000Y2SH04.html\">IEC 60318-2 Ed. 1.0 b:1998, Electroacoustics - Simulators of human head and ear - Part 2: An interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range</a>","width":400,"height":300}