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Hi!<br>
<br>
Mike, thank you!<br>
The issue is bad signal.<br>
<br>
Q:Why does I say this? <br>
A:If I connect directly to first provider cable outlet inside my house,
works fine, if I connect at my 5th outlet and last in row the issue
occurs.<br>
For those who doesn't know the signal between outlets drops the power,
portion dropping mainly depends in items connected to the outlets.<br>
Provider only give us in a SLA manner an amount of signal. In my case
the signal has some channel frequencies with low quality, but with SLA
ok for the first outlet.<br>
<br>
Now I believe that my tuner whit a chip saa7134 has his own
contribution.<br>
When you have digital, channel usually exists or don't, with non
digital, my case, we have the gray, not white nor black... blarg...<br>
Probably saa7134 doesn't provides image or audio in a way mythtv can
not record or shall I say can not synchronize with.<br>
<br>
Do you believe that this symptom should be reported on that page?<br>
<br>
Mike, once more, thank you.<br>
<br>
Tomás<br>
<br>
Michael T. Dean wrote:
<blockquote cite="mid:48F4C56E.2000108@thirdcontact.com" type="cite">
<pre wrap="">On 10/13/2008 07:53 PM, José Tomás @ Chico wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Michael T. Dean wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On 10/13/2008 02:45 PM, José Tomás @ Chico wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I'm having this issue for some channels of poor signal quality.
So lot's of messages in log saying that: "NVP: prebuffering
pause" or even sometimes during channel change
"NVP::AddAudioData():p2: Audio buffer overflow, audio data lost!"
plus "WriteAudio: buffer underrun"
Regarding what I found googling this is an old issue, but in
those posts I didn't found the solution. Post more then 1 year
old. It's like mythtv is not synchronizing correctly the signal.
Do you know anything about?
My TV singal is standard cable, not digital.
</pre>
</blockquote>
<pre wrap=""><a class="moz-txt-link-freetext" href="http://www.mythtv.org/wiki/index.php/Prebuffering_pause">http://www.mythtv.org/wiki/index.php/Prebuffering_pause</a> and, if
yours isn't there, when you figure it out, please update the page
with another cause/solution.
</pre>
</blockquote>
<pre wrap="">Good! I didn't found read that page.
Nevertheless the issue stands. I made a new DB, so everything fresh
and configured taking care the recommendations. What I did noticed is
if select on of those channels where I get no image, the issue
happens.
If I get out of Watch TV and then get back, about 5 sec after getting
out, I'm able to see the channel correctly. These channels have the
worst quality among the others.
What can these show?
</pre>
</blockquote>
<pre wrap=""><!---->
Well, if you have poor signal quality, it may result in corrupt
recordings (it does for digital capture, but I have no idea how your
capture card/encoder will handle it for analog signals). I would assume
that poor signal on an analog capture card would simply result in
static/noise which would be encoded into a valid video stream, meaning
that the recording itself would not be corrupt.
If your recording is /not/ corrupt, you may just need to enable the setting:
Extra audio buffering
Enable this setting if MythTV is playing "crackly" audio and you are
using hardware encoding. This setting will have no effect on MPEG-4 or
RTJPEG video. MythTV will keep extra audio data in its internal buffers
to workaround this bug.
(which is enabled by default and should never be disabled, so please
ensure it's enabled on yours).
If, however, you have corrupt recordings, you may have a problem.
TTBOMK, there's nothing you can do to "fix" Myth's playback of
corrupt/broken recordings. If your signal issues are causing your
recordings to be corrupt, you really need to fix the signal quality
issue, which is something I'm trying to do myself, as signal quality for
nearly all my local over-the-air digital channels has dropped
significantly--from nearly perfect reception with no bit errors for
almost 2 years to just usable--within the last 6 months. I'm just
hoping I find a better solution than the "ultimate" solution--which is
to stop using the channel.
Good luck,
Mike
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</pre>
</blockquote>
<br>
<br>
<div class="moz-signature">-- <br>
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<title>José Tomás <a class="moz-txt-link-rfc2396E" href="mailto:jtomas@totalstor.com"><jtomas@totalstor.com></a></title>
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<b><font color="navy" face="Arial" size="1"><span
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Tomás</span></font></b><br>
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