[mythtv-users] Slight Occasional Hiccup

[Albert Santoni]

The general consensus on this one is that there is no answer.
I'm sure there's more than 10 other users (probably a LOT more) including
myself that have this same "mysterious" problem of hiccuping occasionally
during LiveTV.

Just about everyone who asks about this bug has tried everything they can do
to fix it on their system, to no avail (again, including myself.)

I can only conclude that it is a bug in MythTV, or possibly something lower
level such as X.

(I'm not even sure if Isaac acknowledges the fact that a LOT of people
notice this...)

Albert Santoni


----- Original Message -----
From: "Wood, Mike" <Mike.Wood at marriott.com>
To: "'mythtv-users'" <mythtv-users at mythtv.org>
Sent: Thursday, September 18, 2003 11:34 AM
Subject: [mythtv-users] Slight Occasional Hiccup


> Hey Gang,
>
> I'm am so so close to permanently switching my family room over to Myth,
but
> I still get occasional hiccups in sound/video during live TV that I just
> can't seem to get rid of.  Is this normal and I'm being too critical?  Or
> should the sound/video be totally hiccup free?  Personally, I love Myth
> regardless and I could live with the occasional blip, but the wife & kids
> are not as forgiving unfortunately. :-(
>
> I'm using Myth from CVS as of yesterday on a PIII 650mhz with a single
> PVR-250, 384mb ram----as a combined Frontend/Backend.  The drives are all
> fast & the network is 100mbit hard wired.  I also updated my ivtv drivers
to
> CVS as of yesterday as well.  I'm using RH9.0 with kernel 2.4.20-20.9.
When
> I run TOP during live TV, my CPU remains 35%-45% idle.
>
> I actually believe this is somehow sound related because the hiccups seem
to
> occur more frequently when there is considerable background noise.  For
> instance, during a commercial with a lot of music in the background...or a
> few weeks ago, it was very noticeable while watching US Open
> Tennis....between points when there was a lot of crowd applause in the
> background, I got lots of hiccups.  Has anyone noticed this behavior?  I'm
> using Alsa 9.6. with a cheapo C-Media card...could the card just not be up
> to the task?
>
> I've tried every possible combination of the options in myth....Jitter
> Reduction, Experimental A/V Sync, Audio Buffers, etc....but with no
> luck...although some seem to improve things a bit, but nothing is 100%
yet.
> I've also tried various combinations of options within the IVTV driver, at
> both 480x480 and 720x480.  I actually think running Live TV at 720x480 is
a
> bit better, but again, not perfect..and this could just be my imagination
as
> well.
>
> I've also watched the frontend & backend log files during Live TV and
> nothing out of the ordinary seem to be occurring during the hiccups.
>
> If anyone has any thoughts on this, I'd appreciate it.  I'd love to clear
> this up.  Any suggestions are welcome.
>
> Thanks,
> Mike
>


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