Dear colleagues:

WESPAC X, the 10th Western Pacific Acoustics Conference, will be held in Beijing, China on 21-23 September 2009. The Conference is co-organized by the Acoustical Society of China (ASC), the Institute of Acoustics, Chinese Academy of Sciences (IACAS), and the National Laboratory of Acoustics Chinese Academy of Sciences, The organizers warmly invite and welcome all the prospective participants around the world coming to join us in Beijing and to communicate in the up-to-date advancements in acoustics.

Beijing is a world-renowned cultural city with a long history of over 3000 years as well as China's most important center for international trade and communications. The Conference will give a unique opportunity to visit and appreciate the historical relics and scenic spots within and outside the city.

The Conference will feature a broad range of high-level technical papers from around the world. The distinguished lecturers will present brilliant stimulations for our technical sessions and some discussions with a focus on the Conference theme. Meanwhile, extensive exhibitions of acoustics technology, measurement instrumentation and equipments, various social activities will be provided. At the Conference, you will exchange academic information with international colleagues, find further development opportunities for acoustics in China's enormous and ceaselessly growing markets.

With your participation, WESPAC X will prove to be a very exciting event, a worthful opportunity to promote the scientific research and development in various respects.

We are looking forward to meeting you in Beijing in September 2009.

Renhe Zhang                                                                   Jing Tian
President of WESPAC X                                                General Chairman of WESPAC X