Date: 17th Apr 2011
XMOS' processors are used in digital audio
systems in train cars
XMOS has announced that Hunter Technology will be using
XMOS processor chips to deliver digital audio communication
systems for use in train cars (railways). The embedded processors
built on the new Audio Video Bridging (AVB) standard, will
allow rail passengers to receive important audio messages
that can be directed to specific cars in the train. The
system implements complete two-way audio enabling passengers
to communicate directly with the conductor or other train
personnel in case of an emergency.
"We are pleased to partner with XMOS to give train
cars a high performance digital audio two-way communications
solution," said Chan-kyu Park, senior design engineer,
Hunter Technology. "We selected XMOS because the company's
event driven processor was easy to use and their complete
AVB reference design enabled us to get our product to market
much faster than using our previous microcontroller designs.
The XMOS architecture will give us a competitive edge in
cost and overall product flexibility."
Traditionally, Hunter Technology has used an analog audio
system with bundles containing hundreds of individual wires
to carry audio information to every car in the train. The
high cost of wire, increasing manufacturing complexity,
installation labor cost and analog system maintenance cost
had Hunter looking to implement their next generation system
using digital technology.
With the new AVB standard, the large bundle of analog wires
is replaced with a single Ethernet cable. Multichannel audio
content is transmitted to each train car over the same cable
as the train's other digital data. Using the AVB standard
greatly reduces implementation cost and simplifies system
design. Each train car can use up to 32 XMOS embedded processors
to deliver high quality two-way digital audio throughout
the passenger area.
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