RE: Microphones

["Paul" <groups@xxxxxxx>]

The mics could also have security (monitoring), open air telephone and
pagi=
ng uses (and many more I'm sure).

=20

Tech limitations are the same (or slightly more demanding) as for voice
rec=
ognition progs such as ViaVoice, Dragon etc. This biggest single problem
is=
background noise. I found that in a relatively quiet environment, the resu=
lts are quite good but as soon as any noise is generated (background TV,
st=
ereo etc), the accuracy quickly deteriorates. Therefore, VR is not
suitable=
for music or TV control etc unless you use some kind of 'close mic' such a=
s telephone, headset, lapel mic etc (some of which you don't want to wear
a=
round the house!).

=20

The human ear is very good at shutting out irrelevant noise. The VR
compute=
r program, however, can't make these distinctions (well not yet anyway).

=20

Paul.

=20

-----Original Message-----
From: Paul Robinson [mailto:ukcueman@xxxxxxx]=20
Sent: 14 March 2003 16:17
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Microphones

=20

Thanks for the pics :-)

What are the technical limitations for HA voice recognition? I've not been
=
able to come by much on
this subject. What do you find you use the mics for?

Thanks,
Paul

----- Original Message -----
From: "Paul" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Friday, March 14, 2003 4:28 PM
Subject: RE: [ukha_d] Microphones


I got mine a bit cheaper than that from a local professional audio
supplier=
. You could try having a
search, I think they're reasonably widely available but would normally
ship=
to order. I've not heard
of any other mic that's suitable so far (not many people use HA voice
recog=
nition as it's still
limited technically). I also use a Shure automatic, intelligent mic mixer
(=
quite expensive though)
to feed 8 (from memory) sources into my HA server sound card. These mics
ar=
e very good - they're
designed to pickup voice frequencies and roll off lower frequency
interfere=
nce such as HVAC.



The crown mics are a US design and so fit a standard US 'J' box (single
gan=
g). These are pretty much
impossible to come by in the UK through normal 'Electrical Wholesalers'
etc=
but the likes of
LetsAutomate and certainly Laser do them. You could also screw them
directl=
y to the wall given a
suitable size cutout for the box on the back of the plate.



I've put a few pics on my gallery for you:



http://www.siliconpixel.com/Gallery/



Paul.



-----Original Message-----
From: Paul Robinson [mailto:ukcueman@xxxxxxx]
Sent: 14 March 2003 15:12
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Microphones



Thanks Paul...I see LA sell the PZM11's for =A370+VAT. Are they worth the
m=
oney? Are there any other
UK distributors? What sort of back-box do they fit in to?

Does anybody use any other sort of microphone?

Thanks,
Paul

----- Original Message -----
From: "Paul" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Friday, March 14, 2003 2:29 PM
Subject: RE: [ukha_d] Microphones


> I've got Crown PZM-11's all around the house. They are a boundary mic
> suitable for this kind of use. You should definitely wall mount them
> (not ceiling) and use a mic cable (balanced). Shure have some good
docs.
> Look at:
>
>
>
> http://www.shure.com/support/technotes/app-ceiling.html
>
>
>
> Paul.
>
>
>
> -----Original Message-----
> From: Paul Robinson [mailto:ukcueman@xxxxxxx]
> Sent: 14 March 2003 14:02
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Microphones
>
>
>
> What sort of microphones do people here use for voice activated HA?
> Where would you mount them -
> wall, ceiling or other?
>
> What sort of cable should be used for this?
>
> TIA
> Paul
>
>
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