Video ok, Sound in fast forward

fanformusik · 2008-04-22, 09:44

TV-Server Version:
MediaPortal Version:
MediaPortal Skin: Monochrome
Windows Version: Windows XP SP1
CPU Type: AMD64 X2 BE2400
HDD: 250GB Samsung
Memory: 2GB
Motherboard: MSI K9AGM2-FIH
Motherboard Chipset: AMD 690G
Motherboard Bios:
Video Card:
Video Card Driver: ATI Catalyst 8.2
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card: Floppy DTV
1. TV Card Type: DVB-C
1. TV Card Driver:
MPEG2 Video Codec: PDVD7
MPEG2 Audio Codec: PDVD7
H264 Codec : CoreAVC 1.7
Satelite/CableTV Provider:
HTPC Case: HIPER
Cooling:
Power Supply:
Remote:
TV: Viewsonic VX2835wm
TV - HTPC Connection: Sub-D

I had similar post to this in the German forum section: TV Bild ok , Ton im Zeitraffer

When I switch to specific TV channels, sometimes I get normal video but sound is distorted like "fast forward". The effect is reproducable, but not always present (seems like the TV station switches sound data). When I record a short peace (ts format) and play the file in MP, I get the same effect. However, when I play back the recorded file in MediaPlayerClassic, the sound is fine.

Using GraphEdit I found that the big difference is that MPC uses a different (internal) splitter. Does this indicate that the effect has something to do with MP's ts splitter?

tourettes · 2008-04-22, 10:16

Try using ffdshow or MPA as audio codec. Cyberlink audio codec is known to have issues with live tv.

fanformusik · 2008-04-22, 17:42

Hi,
just installed ffdshow_rev_1945_20080417_clsid and configured MP to use ffdshow as audio codec for TV and videos.

When playing the recorded file, now there is NO sound at all.
Same is true using MPA Audio Decoder in MP.

In GraphEdit, the file renders fine (sound is ok) with both MPA Audio Decoder and ffdshow Audio Decoder.

So I think this is not an issue with the Audio decoders. I still think it has something to do with the splitter.

Paranoid Delusion · 2008-04-22, 21:06

Try using Filmerit to see and correct any errors (padlock symbol unlocks).

fanformusik · 2008-04-23, 09:23

I checked the system with filmmerit, bit it reported only few (5) errors which seemed not to be related to any of the used codecs. Still I decided to create a restore point and let filmerit automatically correct everything. Now, magically, I can playback the recorded file and get normal audio. Strange.

However, using ffdshow or others as audio decoder still results in NO audio at all, so the file must contain something that confuses audio data extraction.

Is there a simple tool that I can use to analyse and find the difference between this file (.ts format, recorded with MP) and others that play fine?

Paranoid Delusion · 2008-04-23, 10:02

graphedit or gspot (not sure ts) will check most path's, gspot may even play the file, or try VLC just for playback testing.

Spragleknas · 2008-04-23, 10:06

Are you or have you ever used reclock?

fanformusik · 2008-04-23, 10:15

Reclock: No, never.

After the modifications I made with Filmmerit (see above) now live TV hangs after a few minutes. I am not clear if this is is an independet effect or not, but I didn't have this one before. I'll put an extra post on this.

infinityloop · 2008-04-24, 07:54

moved to support because YOU DID NOT READ THE BUGREPORT RULES.

@team such either delete such threads or move them to support.

bugreport forums must stay clean.

2008-04-22, 09:44	#1 (permalink)
fanformusik Portal Member Join Date: Aug 2007 Posts: 81 Thanks: 0 Thanked 0 Times in 0 Posts Country: My System	Video ok, Sound in fast forward TV-Server Version: MediaPortal Version: MediaPortal Skin: Monochrome Windows Version: Windows XP SP1 CPU Type: AMD64 X2 BE2400 HDD: 250GB Samsung Memory: 2GB Motherboard: MSI K9AGM2-FIH Motherboard Chipset: AMD 690G Motherboard Bios: Video Card: Video Card Driver: ATI Catalyst 8.2 Sound Card: Sound Card AC3: Sound Card Driver: 1. TV Card: Floppy DTV 1. TV Card Type: DVB-C 1. TV Card Driver: MPEG2 Video Codec: PDVD7 MPEG2 Audio Codec: PDVD7 H264 Codec : CoreAVC 1.7 Satelite/CableTV Provider: HTPC Case: HIPER Cooling: Power Supply: Remote: TV: Viewsonic VX2835wm TV - HTPC Connection: Sub-D I had similar post to this in the German forum section: TV Bild ok , Ton im Zeitraffer When I switch to specific TV channels, sometimes I get normal video but sound is distorted like "fast forward". The effect is reproducable, but not always present (seems like the TV station switches sound data). When I record a short peace (ts format) and play the file in MP, I get the same effect. However, when I play back the recorded file in MediaPlayerClassic, the sound is fine. Using GraphEdit I found that the big difference is that MPC uses a different (internal) splitter. Does this indicate that the effect has something to do with MP's ts splitter?

2008-04-22, 10:16	#2 (permalink)
tourettes Portal Developer Join Date: Jan 2005 Age: 30 Posts: 3,733 Thanks: 98 Thanked 137 Times in 109 Posts	Try using ffdshow or MPA as audio codec. Cyberlink audio codec is known to have issues with live tv. __________________ http://day2.no-ip.org/ "Commy64 - The problem there is that Oprah was on. MP tried to save you by blanking the screen"

2008-04-22, 21:06	#4 (permalink)
Paranoid Delusion Super Moderator Join Date: Jun 2005 Location: Cheshire UK Posts: 7,033 Thanks: 139 Thanked 257 Times in 228 Posts Country: My System	Try using Filmerit to see and correct any errors (padlock symbol unlocks). __________________ Ray\PD Check your codecs are fine with Filmerit. Upload Logs\Pictures etc, use the "Go Advanced" and select the + feature to upload\attach files.

2008-04-23, 10:02	#6 (permalink)
Paranoid Delusion Super Moderator Join Date: Jun 2005 Location: Cheshire UK Posts: 7,033 Thanks: 139 Thanked 257 Times in 228 Posts Country: My System	graphedit or gspot (not sure ts) will check most path's, gspot may even play the file, or try VLC just for playback testing. __________________ Ray\PD Check your codecs are fine with Filmerit. Upload Logs\Pictures etc, use the "Go Advanced" and select the + feature to upload\attach files.

2008-04-23, 10:06	#7 (permalink)
Spragleknas Super Moderator Join Date: Dec 2005 Location: Rogaland Age: 32 Posts: 3,968 Thanks: 194 Thanked 106 Times in 86 Posts Country: My System	Are you or have you ever used reclock? __________________ Please read -> HOW TO START A SUPPORT THREAD !!! Support MediaPortal! Donate by clicking HERE Dedicated HTPC board (Norway) -> MSPC.no My Christmas skin 2008 (widescreen)

2008-04-22, 17:42	#3 (permalink)
fanformusik Portal Member Join Date: Aug 2007 Posts: 81 Thanks: 0 Thanked 0 Times in 0 Posts Country: My System	Hi, just installed ffdshow_rev_1945_20080417_clsid and configured MP to use ffdshow as audio codec for TV and videos. When playing the recorded file, now there is NO sound at all. Same is true using MPA Audio Decoder in MP. In GraphEdit, the file renders fine (sound is ok) with both MPA Audio Decoder and ffdshow Audio Decoder. So I think this is not an issue with the Audio decoders. I still think it has something to do with the splitter.

2008-04-23, 09:23	#5 (permalink)
fanformusik Portal Member Join Date: Aug 2007 Posts: 81 Thanks: 0 Thanked 0 Times in 0 Posts Country: My System	I checked the system with filmmerit, bit it reported only few (5) errors which seemed not to be related to any of the used codecs. Still I decided to create a restore point and let filmerit automatically correct everything. Now, magically, I can playback the recorded file and get normal audio. Strange. However, using ffdshow or others as audio decoder still results in NO audio at all, so the file must contain something that confuses audio data extraction. Is there a simple tool that I can use to analyse and find the difference between this file (.ts format, recorded with MP) and others that play fine?

2008-04-23, 10:15	#8 (permalink)
fanformusik Portal Member Join Date: Aug 2007 Posts: 81 Thanks: 0 Thanked 0 Times in 0 Posts Country: My System	Reclock: No, never. After the modifications I made with Filmmerit (see above) now live TV hangs after a few minutes. I am not clear if this is is an independet effect or not, but I didn't have this one before. I'll put an extra post on this.

2008-04-24, 07:54	#9 (permalink)
infinityloop Join Date: Dec 2004 Location: 127.0.0.1 Age: 29 Posts: 6,405 Thanks: 183 Thanked 146 Times in 101 Posts Country: My System	moved to support because YOU DID NOT READ THE BUGREPORT RULES. @team such either delete such threads or move them to support. bugreport forums must stay clean. __________________ regards chris MediaPortal Project Coordinator Test Team Leader Do not start to moan if something is not working as you want it to be. Remember that MediaPortal is Open Source. YOU can improve it!

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