Richard Meiers San Jose Masterpiece

San Jose City Hall, California

Architect - Richard Meier & Partners

The San Jose Civic Center is a new City Hall in the City of San Jose CA, capital of ‘Silicon Valley’, and home to many technology companies such as Cisco Systems and Adobe. It is the largest city in the Bay Area, with over a million people. Mr. Sellars was the lead principal in Audiovisual and Acoustics for this 600,000 sf project, which has a large technology component. In the graphic below can be seen one of the major components of the project -a 10 storey high all glass rotunda which needs to be able to handle public performances as well as annual speeches by the mayor of San Jose. We explained to the client and the architect that an all glass rotunda and dome above are not conducive to symphonic orchestra performance, but that if enough acoustical absorption was introduced - and very special sound reproduction techniques were undertaken, the space could be made suitable for certain public functions. The Rotunda also contains a large video projection screen, able to compete with daylight, and many plasma and Projection cube display screens for interactive wayfinding and information/video. The City of San Jose already has pervasive ‘electronic government’ with large amounts of the city’s business done over the web, including streaming media of multiple simultaneous events. This will be expanded into all areas of the building, which will accommodate an extensive IP-Video network, as well as HDTV Broadcaster links over fibre. The 350 person council chamber needs to accommodate up to 10 Broadcast camera’s, and 2 large displays for the public. The One-Stop Permit centre will include extensive use of interactive kiosks as well as less interactive video displays for those members fo the people who are too ‘techno-phobic’ to use computer’s. A Central Media Head End and Black Box TV Studio/control Room and Edits suites round out the facilities at this large government project

 
 

A Silicon Valley Icon

 

Acoustics in a glass dome.

Right from the begining working with Meiers office, we knew that acoustical focusing and reverberation control in this glass dome was going to be challenging. The 4 ‘sails’ suspended from the glass dome were formulated for acoustical absorption and diffusion. The surfaces of the walls were treated with deep absorbers so as dampen as much of the reverberation as possible. Lastly, high directional ‘line array’ loudspeakers are used to ‘paint’ the floor with audio energy, but not to excite the walls and dome above.

E -Government in action

The 350 person tiered council chamber is designed for active local participation, as well as remote engagement. Large projection screens and digital displays are provisioned. Real time closed captioning of discussions is provided via an audio link to a retired court room reporter located in Sacramento. Her live text is superimposed on the screens for the hard-of-hearing.

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