RE: Routing audio from mics to HA land (and HV outputs)

["Paul Gale" <groups@xxxxxxx>]

Thanks Frank!

I was kind of thinking that but wasn't 100% sure. I guess the power draw
fr=
om this kind of control circuit is pretty small - Am I right in saying you
=
need to be careful doing this with more powerful devices (or is this
tosh!!=
) :)

Paul.



-----Original Message-----
From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]=20
Sent: 07 September 2003 10:31
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Routing audio from mics to HA land (and HV outputs)

Hi Paul

>1. WHAT HV PORTS? The mixer=92s interface allows muting, gating and
overri=
de
selection of >sources via a DB25 connector. For now I just want to use
the
override select features to >manually select one or more mics. A source
is
selected simply by shorting the relevant pin to >the unit=92s =91Logic
Grou=
nd=92
(possibly different to the audio ground???). I don=92t want to use
>relays
etc =96 can I do this just with one of HV=92s outputs? (obviously up to 8
outputs to control >each of the 8 mics). I=92m not sure this is OK and
whic=
h
port to use (port A?). Once wired up, >selecting the outputs via
schedule i=
s
easy :-)

Port A is ideal for what you want to do as the Port A outputs are open
collector and short to ground when turned on.....

Frank


----- Original Message -----
From: "Paul Gale" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Sunday, September 07, 2003 6:56 PM
Subject: [ukha_d] Routing audio from mics to HA land (and HV outputs)


More questions (HA day here today!). Not sure Sunday is the best day to
post =96 most of you seem to have a life at the weekends ;)

I=92ve got a number of open air microphones (Crown PZM-11) installed around
the house =96 originally for voice control (but as the software is still
pants =96 that will have to wait a while). I=92m finally getting round to
thinking about using them for security monitoring and want to be able to
listen in to whichever mic I want via the web and telephone. I have a Shure
intelligent mic mixer which will automatically select a mic depending on
noise level and also has a control interface to be able to manually select
=
a
mic by shorting one of 8 signals to ground. So I have a number of mixed h/w
& s/w questions:

1. WHAT HV PORTS? The mixer=92s interface allows muting, gating and
overrid=
e
selection of sources via a DB25 connector. For now I just want to use the
override select features to manually select one or more mics. A source is
selected simply by shorting the relevant pin to the unit=92s =91Logic
Groun=
d=92
(possibly different to the audio ground???). I don=92t want to use relays
etc =96 can I do this just with one of HV=92s outputs? (obviously up to 8
outputs to control each of the 8 mics). I=92m not sure this is OK and which
port to use (port A?). Once wired up, selecting the outputs via schedule is
easy :-)
2. The line out from the mixer is simply routed into one of two soundcards
in my server (one is used for voice announcements and the other for MP3
server). One card (MP3 server) is a SB Audigy 2 and the other an older SB
model of some kind. Is there a decent piece of software out there that can
be controlled by HV and/or ACE (maybe just command line driven etc) that
ca=
n
select record input, mute sources and set volume levels so I can then route
the audio to
a. my whole house audio system
b. streamed to a web page via whatever streaming app I want
c. somehow routed to a telephone for live listening (maybe via HomeSeer
Phone OR Asterisk etc
3. in 2c above =96 how easy is it to route live audio onto the phone line
v=
ia
something like Asterisk?

I think that=92s it for now. Any thoughts most appreciated as usual :-)

Paul.





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