From the site: "The Acoustical Society of Japan (ASJ) promotes the advancement of the science and technology of acoustics, in all its disciplines, and the exchange of ideas in relation thereto." Note: ISCA and ASJ have agreed to offer membership discounts to members of each other's organizations in the following way: A member of ISCA or ASJ can apply for a 25% discount rate when he or she becomes a member of the other society. (In order for a member of ISCA to become a member of ASJ, he or she must reside outside of Japan.) To qualify for a discounted membership in ASJ, the membership fee must be paid by Master Card or Visa Card.