[asterisk-users] The High Performance Echo Canceller (HPEC)

Matthew Fredrickson creslin at digium.com
Wed Feb 14 09:19:22 MST 2007


On Feb 13, 2007, at 5:48 PM, shadowym wrote:

> Interesting,
>
> Is this just a more advanced software echo canceller or software with
> hardware hooks or software with hardware assisted processing?
>
> How would it compare to a true hardware echo canceller like the one 
> Sangoma
> uses.  Besides the extra CPU cycles required.

We noticed that it has slightly better performance characteristics than 
the Octasic, particularly in double talk scenarios, at least from our 
internal lab testing.

Matthew Fredrickson



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