Issue 28
beijing high court interior with symetrix



2 September 2015

beijing high court

With responsibilities that include the live transmission/recording of court proceedings and the management of case-related documents, it stands to reason that no chances can be taken when it comes to the AV infrastructure of the Beijing Higher People’s Court. In this spirit, the Court – which is the most senior level of judiciary in the municipality of Beijing – recently pressed ahead with an audio system installation in which Symetrix DSPs play an integral role.

In delivering the best possible solution, the project entailed cooperation between two of China’s leading specialists in professional technology. Whilst distribution heavyweight and long-running Symetrix provider EZPro was primarily responsible for supply and system tuning, Beijing Jinqiao Times Culture Development Co served as systems integrator in charge of product purchase and system specification.

beijing high court interior with symetrix

With as many as 46 inputs and 14 outputs to manage, and frequent changes to the configuration, flexible routing and processing were critical. Support for the specified Audinate Dante network and provision for redundant set-up were other factors that ultimately led Jinqiao Times to specify three Symetrix SymNet Radius AEC open architecture Dante-scalable DSPs. These are used in conjunction with two SymNet xIn 12 expanders to ensure there is sufficient capacity available at all times.

The selection of the Symetrix DSPs has also had another important benefit with regard to their inclusion of the AV industry’s lowest-latency acoustic echo cancellation (AEC) algorithm. This functionality is especially advantageous when video conferences are taking place between the Beijing Higher People’s Court and judicial bodies in other regions.

“The AEC function eradicates distracting echo and obtrusive noise while delivering pristine full-bandwidth audio to both near and far ends. It’s a really great feature for this kind of application,” says Zhang.

Staff are reportedly delighted by the performance of the audio installation at the High Court, which also features a number of other premium components, including an Allen & Heath mixer, Mission Pro power amplifiers and EAW column speakers.

More Info:
EZ Pro:
Symetrix Australian Distributor:


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