Re: Hand Free Phone

["the_home_automator <db@xxxxxxx>" <db@xxxxxxx>]

Yes, whole room audio conferencing is very impressive, isnt it. 
Genuine full duplex telephony over a large space with speakers and 
mics.

The technology is a combination of hybrids, mix-minus (both of which 
I understand) and echo cancellation (which is not science but black 
magic).

Fortunately, this stuff all arrives in a 1u high (always black, 
irrespective of manufacturer) rack box or several, which just works. 
Unfortunately, its outrageously expensive.

Have a look at http://www.rane.com for an
example.

The next step down from whole room audioconference is phone 
conferencinhg, and the standard unit ther is the starfish, usually 
with a BT badge on it, cant remember its proper name, but it too is 
expensive (though only(!) several hundred pounds) but has all the 
right technology in a single box.

David.

--- In ukha_d@xxxxxxx, "Clive Dilley" <clive.dilley@b...>
wrote:
> I have used such a system in a company board room - very
impressive.
> 
> I would also be interested to know how to to this.
> 
> -----Original Message-----
> From: Alancc [mailto:alan.cc@n...]
> Sent: 14 December 2002 10:08
> To: UKHA
> Subject: [ukha_d] Hand Free Phone
> 
> 
> Has anyone set up a hands free phone around the house using hidden
mics and
> speakers either as part of a voice control system or just for the 
phones?
> Is the idea of answering the phone from the armchair just by 
talking into
> thin air practical?
> 
> Thanks
> 
> Alancc
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
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