[Asterisk-Users] PCI or MiniPCI Hardware DSP for G.729, G.723.1 and/or GSM

Andrew Kohlsmith akohlsmith-asterisk at benshaw.com
Mon Jun 26 06:24:02 MST 2006


On Saturday 24 June 2006 09:44, Paul Hewlett wrote:
> I would imagine that this would not solve any problems - the extra overhead
> of piping the data over the PCI bus would very quickly negate any speed
> gains of the DSP over the native Intel FPU. Additionally you would probably
> introduce extra latency. I did quite a lot of work on DSP co-processor
> boards and there was always a considerable startup time when all the data
> pipes had to be filled.

Talk to Digium, they're releasing a PCI DSP board that does exactly this.  I 
guess that the PCI overhead isn't as great as was first thought?  Interesting 
times...

-A.



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