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zetoune
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 Posted: Fri Jan 06, 2006 12:40 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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When I look at LiveTV or recorded shows, sound jerks often but not all the time.
If I look the same recorded show in Streaming Recording (with windows media player on my laptop), sound is great and doesn't jerk at all.
I tried to burn a DVD of this show, and the sound was great too.
What can I do?
config:
KnoppMyth R5A26
Abit AN7 Nforce2
Sempron 2800+
1 GB RAM Dual Channel
Maxtor DM10 250 GB 16MB cache
WinTV 150 non MCE with receiver and transmitter
MSI Nvidia Fx5200 128MB
Last edited by zetoune on Sat Jan 07, 2006 8:55 am, edited 1 time in total.
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ryanpatterson
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Posted: Fri Jan 06, 2006 2:48 pm |
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Joined: Fri Aug 26, 2005 9:54 pm
Posts: 617
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In the setup menus under playback there is a choice called somthing like "use extra audio buffers" have you tried that?
What do you mean by streaming the video? Is that playing it over the network through windows networking? Or is it using the mythstreem plugin using video lan client? Also ssh in from another computer and run `top` while you are playing back a recording if memory or CPU ussage spikes you know your problem.
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zetoune
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Posted: Fri Jan 06, 2006 3:17 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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I mean by streaming the video, by using MythStream with VLC (in MythWeb).
No I didn't use "use extra audio buffers". What does it do?
I'm using SPDIF output now, will it change something?
I will try ssh. If the problem comes from my CPU or memory usage. How can I reduce the usage of CPU ?
my config should be strong enough to play LiveTV, shouldn't it?
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ryanpatterson
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Posted: Fri Jan 06, 2006 4:01 pm |
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Joined: Fri Aug 26, 2005 9:54 pm
Posts: 617
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I have no idea about spdif output. I think you should post details on your soundcard. Maybe sombody else can help you.
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zetoune
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Posted: Fri Jan 06, 2006 4:05 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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The sound card is the build-in sound card which comes with nforce2 chipset Ultra400.
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mad_paddler
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Posted: Fri Jan 06, 2006 5:11 pm |
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Joined: Sun Jun 12, 2005 2:39 pm
Posts: 464
Location:
UK
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I have a sempron 2800 + nforce2 mobo + 256mb RAM and it is more than up to the task! Is the video absolutely perfect or is it slightly jerky too?
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zetoune
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Posted: Fri Jan 06, 2006 5:30 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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the video seems to be great.
I'm looking for the '"extra audio buffer".
The only thing I found was "agressive sound buffering". Is it that?
If yes, it changes nothing.
top return
Quote: top - 18:31:05 up 15 min, 2 users, load average: 0.42, 0.25, 0.19
Tasks: 73 total, 2 running, 71 sleeping, 0 stopped, 0 zombie
Cpu(s): 8.4% us, 0.7% sy, 0.0% ni, 90.3% id, 0.3% wa, 0.3% hi, 0.0% si
Mem: 1033964k total, 387456k used, 646508k free, 8384k buffers
Swap: 594396k total, 0k used, 594396k free, 242416k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6068 mythtv 15 0 164m 52m 28m S 9.0 5.2 0:28.36 mythfrontend
1919 root 5 -10 0 0 0 S 0.3 0.0 0:00.36 ivtv-enc
3462 root 15 0 0 0 0 S 0.3 0.0 0:00.22 lirc_pvr150
4258 mythtv 15 0 137m 20m 10m S 0.3 2.1 0:00.78 mythbackend
1 root 16 0 156 76 52 S 0.0 0.0 0:01.39 init
2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
4 root 10 -5 0 0 0 S 0.0 0.0 0:00.04 events/0
5 root 11 -5 0 0 0 S 0.0 0.0 0:00.02 khelper
6 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
8 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
114 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/0
154 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pdflush
155 root 15 0 0 0 0 S 0.0 0.0 0:00.00 pdflush
157 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0
156 root 25 0 0 0 0 S 0.0 0.0 0:00.00 kswapd0
158 root 25 0 0 0 0 S 0.0 0.0 0:00.00 jfsIO
it's seems correct,isn't it?
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zetoune
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Posted: Fri Jan 06, 2006 6:29 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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Ok,
I tried something that fix my sound problem. If I check "use hardware XvMC MPEG decoding" the sound becomes great, no jerks anymore. BUT
the OSD flickers, it's very hard to read it.
Any idea?
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mad_paddler
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Posted: Sat Jan 07, 2006 4:53 am |
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Joined: Sun Jun 12, 2005 2:39 pm
Posts: 464
Location:
UK
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Thats one of the problems with XvMC. I'm not 100% sure but i think if you disable de-interlacing it reduces the flickering.
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zetoune
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Posted: Sat Jan 07, 2006 8:54 am |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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SOLVED.
ryanpatterson you were absolutly true.
I was blind. I didn't look at the good place.
I foud the "extra audio buffer" option. And now it works perfectly.
Thank you all.
option was located in setup/TV settings/Playback. First screen.
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mojorisin
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Posted: Mon Jan 09, 2006 2:55 pm |
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Joined: Sun Dec 26, 2004 10:43 pm
Posts: 4
Location:
NE Illinois
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Did you fix it by *only* enabling "extra audio buffers", by "use hardware XvMC MPEG decoding" + "extra audio buffers", or with some other combination including the above features?
MJ
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zetoune
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Posted: Mon Jan 09, 2006 2:58 pm |
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Joined: Sun Oct 16, 2005 12:15 pm
Posts: 288
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just "extra audio buffers".
"use hardware XvMC MPEG decoding" made OSD flicker, so I unchecked it.
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