China International Electroacoustic Technology Forum and acoustic building ninth annual meeting held inGuangzhou from November 22, 2014 to 23. The forum is organized by the Chinese audio industry association, Guangzhou City Branch letter Bureau, Huadu District People's government, the Huadu DistrictBranch letter Bureau, administrative  committee, association of acoustic building forum, Huadu District of Guangzhou city science and technology economy exchange audio electronic industrial technology innovation alliance for electro acoustic industry forum. As the industry well-known technology forum, forum on industryscholars, researchers, industry experts, as well as industry leaders in charge of the new technology,acoustics industry new products and other fields of the full exchange.