[TriLUG] VOIP soft phone help.

[Jim Ray]

Polycom makes some great conferencing phones that have echo cancellation algorithms built in. I am not sure how you could look at the software , though, without reverse engineering their product. You are really looking more at digital signal processing and may want to use fast Fourier transform. 

Sent from my iPhone

On Aug 20, 2012, at 11:04 AM, "Thomas Gardner" <tmg at pobox.com> wrote:

> On 8/20/12, Jim Ray <jim at neuse.net> wrote:
>> Just curious: why would two devices in same room need to communicate
>> over Skype?
> 
> Well, that isn't exactly the application.  What I'm trying to do
> is have all the devices conference themselves into each other so
> that someones voice that gets picked up on any of them will be
> broadcast to all the others.  This is going to be a closed call.
> All the devices will be in the same building, and won't need to
> connect to anything in outside world.  I'm trying to get as close
> as I can to 100% coverage of the square footage of the building,
> so with that, I figure there's going to be some coverage overlap.
> I was hoping someone on this list knew of some slick SW that might
> be able to manage the resulting echo (or any of the other problems I
> mentioned in my first post that I thought I might have to worry about).
> 
> It may not be possible, so I may have to drop it like so many other
> boneheaded ideas I've had over my lifetime, but I thought it was
> worth a try.  Some guys just never learn, eh?  :-)
> 
> L8r,
> tg.
> -- 
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