[Asterisk-Dev] Echo cancellation on GPU

steve at daviesfam.org steve at daviesfam.org
Sun Sep 25 11:09:00 MST 2005


Hi,

I've been thinking off and on about echo cancellation and the use of a GPU 
board to run it.

The idea is to use "inexpensive" commodity graphics card in the box, and 
offload the "dsp"-style work to the GPU. 

I just now came across this new research paper in which an FIR filter is 
implemented on a GPU:  http://www.ecsl.cs.sunysb.edu/fir/fir.ps

FIR filter is at the core of most echo cancellation algorithms - so this 
looks like a head-start on such a project.

Dunno if you have comments, Steve Underwood?

Regards,
Steve




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