[mythtv-users] UK: Getting strange audio track on BBC 1

Ivan A. Beveridge ivan at dreamtime.org
Sun Aug 7 22:52:36 UTC 2005

On Tue, Jul 19, 2005 at 03:10:26PM +0100, Ivan A. Beveridge wrote:
> On Fri, Jun 24, 2005 at 11:42:35AM -0400, Donavan Stanley wrote:
> > On 6/24/05, James Pattinson <jamesp at hisser.org> wrote:
> > > I'm tuned to channel 6301 (BBC One London) but I seem to get an audio
> > > channel which is meant for the blind on programs like Eastenders. I am
> > > guessing I am selecting the wrong audio multiplex in the stream but can
> > > anyone tell me what I'm doing wrong?
> > 
> > There's a bug in the automatic audio track selection logic.  You'll
> > need to manually select the proper audio track until .18.2 comes out.
> I've been getting odd sound & video *only* during Eastenders (BBC1,
> BBC3). This has been for the last month, and seemed to conside (or nearly 
> coincide) with my upgrade from 0.17 to 0.18.1.
> The oddities are very glitchy sound (stop-start, every 0.5s ish) and video 
> (normal/slow speed every 0.5s ish). It happens during recordings and
> "watch live tv".
> I have no idea what to look for. It's really odd - it tends to coincide
> with the start of the Eastenders lead-in (~20:00 on BBC1) and probably
> finish around 20:30 (doesn't necessarily coincide with the actual end of 
> Eastenders).
> Does any of this sound like something you were seeing, james, or
> something that could get fixed in 0.18.2? It seems odd that it should
> coincide with a single programme, and be repeatable (the problem
> survives mythtv restarts and, I think, reboots).

As mentioned previously, the problem I am having is due to audio (the
video glitches are due to mythtv trying to keep the video and audio in

I am still getting this. I tried increasing RAM (from the previous 256MB
to 512MB) this week, in case it was a swap problem. The system is now
not swapping, but the glitches are still there.

The audio problems have been continuously happening in Eastenders (BBC1), 
and have randomly happened with a few other channels (including for 
CSI Miami on Channel5). Most recently (last 3-ish weeks) it has also 
occurred during the reruns of "24" (BBC1, Friday circa 23:45 for a 
couple of hours).

Any other thoughts?


Ivan Beveridge	<ivan at dreamtime.org>

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