RE: Dumb question - PC Audio connection?

["Phil Harris" <phillip.harris1@xxxxxxx>]

Thus speaks the electronics guru...

...thanks Keith.

Keith, what's the state of play with the KAT5 project? I'm doing an install
for a friend this weekend which your composite + stereo audio + IR boards
would be *PERFECT* for and I've told him that you're working on them but I
was wondering if you had any plans as to when they were going to be
available?

Phil

> -----Original Message-----
> From: Keith Doxey [mailto:ukha.diyha@xxxxxxx]
> Sent: 08 February 2001 23:06
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Dumb question - PC Audio connection?
>
>
> As per my previous answer, the output level isnt a problem,
> the amp will
> handle that and you can always turn down the PC volume.
>
> The problem comes from the low output impedance of modern
> audio equipment.
> It is often near zero impedance so looking into the output of
> a soundcard or
> CD player you effectivly see a short circuit to ground. This
> will severely
> attenuate the output of a parallel connected device.
>
> By using the 1K resistors the output of each PC will be
> attenuated by 3dB
> but if it ends up too low (which is unlikely) just increase
> the output from
> the PC.
>
> Keith
>
> > -----Original Message-----
> > From: Phillip Harris [mailto:phillip.harris1@xxxxxxx]
> > Sent: 08 February 2001 22:48
> > To: ukha_d@xxxxxxx
> > Subject: RE: [ukha_d] Dumb question - PC Audio connection?
> >
> >
> >
> > Isn't this going to cut out half the audio waveform and
> anything below 0.7
> > volts?
> >
> > Just hooking two audio sources to one input is going to do
> nothing worse
> > than (possibly) overdrive the input by a maximum of 3db surely?
> >
> > Phil
> >
> > > -----Original Message-----
> > > From: Paul Miller [mailto:pmiller@xxxxxxx]
> > > Sent: 08 February 2001 22:32
> > > To: ukha_d@xxxxxxx
> > > Subject: RE: [ukha_d] Dumb question - PC Audio connection?
> > >
> > >
> > > Why not to be safe just solder two signal diodes in place.
> > >
> > >                 diode
> > > from PC 1 -------===----\
> > >                           \
> > >                           ---------- To AMP
> > >                 diode     /
> > > from PC 2 -------===----/
> > >
> > > Like above, I hate ASCII pictures..
> > >
> > > Paul
> > >
> > > -----Original Message-----
> > > From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
> > > Sent: 07 February 2001 12:12
> > > To: ukha_d@xxxxxxx
> > > Subject: [ukha_d] Dumb question - PC Audio connection?
> > >
> > >
> > > This is a bit basic I know, but here goes...
> > >
> > > Is there any reason why I shouldn't connect 2 seperate PC's
> > > audio-out to the
> > > SAME input on an amplifier?
> > >
> > > Reason:
> > >
> > > I currently have 2 audio-enabled PC's in the cellar, one
> is my HA PC,
> > > running Homeseer 24/7. The audio out is connected to an
> old amp which is
> > > also in the cellar, which drives 4 speakers dotted around
the
> > > house for TTS
> > > announcements only. The other PC is my
"Entertainment"
> PC, (MP3 jukebox,
> > > games console, Web-TV etc), which is connected to an
> input on the home
> > > cinema amp in the lounge.
> > >
> > > I do have a long-term plan to (possibly*) merge these 2 PC's
into
> > > 1, but not
> > > until all the issues with Homeseer phone running under Win2K
are
> > > resolved, -
> > > my entertainment PC currently runs W2K, and I will
>NOT<
> downgrade it to
> > > Win9X, also, I don't want to merge them until I can also do
a
> > > processor U/G
> > > on the target PC.
> > >
> > > * I still "prefer" to keep these functions
seperate, however,
> > it does make
> > > it loads more difficult for the HA PC to control the
> > entertainment PC. If
> > > all this was on the same machine, it makes controlling the
> > > various software
> > > components a bit easier...
> > >
> > > However, I would like to merge the audio from these 2
sources, so
> > > that I can
> > > treat all the speakers around the house as a single
distributed
> > > system, - I
> > > find that I need this for parties, as I can easily drive
some
> > speakers in
> > > the garden from the HA PC's cellar-based amp, but not so
> easily from the
> > > home cinema amp... It also makes it better/easier to deal
> with Homeseer
> > > announcements when the entertainment PC is playing
> music... (sometimes
> > > difficult to hear the announcement, can't get the
> announcements over ALL
> > > speakers in the house etc.)
> > >
> > > I had thought about just getting a Y cable, and
> connecting both PC's
> > > soundcards line-out to the same input on the lounge
amplifier..
> > > would there
> > > be any problem with doing this?
> > >
> > > Cheers.
> > >
> > > Paul G.
> > >
> > >
> >
> ______________________________________________________________
> ___________
> > > Get Your Private, Free E-mail from MSN Hotmail at
> http://www.hotmail.com.
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> ---------------------~-~>
> eGroups is now Yahoo! Groups
> Click here for more details
> http://click.egroups.com/1/11231/1/_/2065/_/981673645/
> --------------------------------------------------------------
> -------_->
>
>
>