[mythtv-users] Plextor external USB capture device

[Jim Minihane]

I'm beginning to thing that the PVR cards are going to be the least hassle
for me.

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of Nick Rout
> Sent: Monday, March 27, 2006 11:22 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Plextor external USB capture device
> 
> My understanding of the driver for the plextor usb units is that it does
> not mux the sound in with the video, this being left to the user's
> software to acheive. The sound is delivered as uncompressed PCM. This is
> in contrast to the Hauppauge PVR 150/250/350/500  cards where the output
> is muxed video/audio, albeit only mpeg2, not mpeg4.
> 
> This seems to imply two possible difficulties:
> 
> 1. that there could be audio synching problems, depending on how good
> the muxing is done in software; and
> 
> 2. some of the performance gain in the hardware mpeg will be lost by the
> need to compress [1] and mux the audio on the cpu,
> 
> Seems to me that unless you have a pressing need for USB, or hardware
> encoded mpeg-4, then the PVR cards are a tried and tested formula.
> 
> 
> [1] assuming you don't want the full uncompressed audio.
> 
> On Mon, 27 Mar 2006 22:23:24 -0500
> Jim Minihane wrote:
> 
> > A couple of weeks. Hmmmm. Perhaps I'll return them and just get PVR-
> 500s.
> > Cheaper per encoder anyway. Heh heh heh. I'll try Mythdora and see what
> > happens with the PVR-500 I have. Fun times!
> >
> > > -----Original Message-----
> > > From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> > > bounces at mythtv.org] On Behalf Of Brian Wood
> > > Sent: Monday, March 27, 2006 9:52 PM
> > > To: Discussion about mythtv
> > > Subject: Re: [mythtv-users] Plextor external USB capture device
> > >
> > >
> > > On Mar 27, 2006, at 7:37 PM, Jim Minihane wrote:
> > >
> > > > Yeah, That's what I thought was kind of weird. I've just installed
> > > > FC4 on a
> > > > machine. I had errors until I didn't create a partition as xfs or
> > > > jfs. Now
> > > > that I've updated it (yum), I'll try creating a partition as jfs or
> > > > xfs in
> > > > the remaining 38GB. It wouldn't recognize my onboard sound either.
> > > > I'd just
> > > > LOVE to find a distro that doesn't throw errors. Knoppmyth wouldn't
> > > > install
> > > > either. So here it is... Do the Plextors work with Mythdora or not?
> > > > I'll
> > > > switch to PVR-500's if I have to. Will they be recognized
> > > > automatically? I'd
> > > > rather not go through distro after distro. If no one lese has done
> > > > this then
> > > > I'll have to but I suspect that nothing I am about to try has never
> > > > been
> > > > done. I'd like to leverage previous knowledge.
> > >
> > > At present the Plextors do not work with MythDora, I suspect, but do
> > > not know for sure, that they will not work on any FC-4 system.
> > >
> > > They did work for me on a Gentoo system and a Knoppmyth system, both
> > > 0.18 and 0.19.
> > >
> > > The problem seems to be related to the ALSA modules and the Plextor
> > > drivers (go7007) not playing well together. If oyu are having sound
> > > problems you will have to get that straightened out before any Myth
> > > Distro will work.
> > >
> > > I really believe that the Plextor problem will be resolved, and we
> > > will all laugh about how stupid the problem really was. I would be
> > > surprised if it takes more than 2 or 3 weeks to get it figured out,
> > > but I have been surprised before :-)
> > >
> > > The 500s should work on any recent distro using recent IVTV drivers.
> > > They should be automatically recognized but not as a 500, I think
> > > they get recognized as 2 150s (which is what they really are).
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> >
> >
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> 
> --
> Nick Rout <nick at rout.co.nz>
> 
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