No sound/audio on specific channels (CNN, Euronews,etc...)

TV-Server Version: tvengine3-06-16-2007--01-22h--Rev14904
MediaPortal Version: MediaPortal_0.2.3_RC1
MediaPortal Skin: Default
Windows Version: Tested on Windows Vista and XP
CPU Type: Tested on P3 1Ghz, P4 2Ghz, Core 2 Duo 4200 and Athlon X2 3800+
HDD: from 20 to 400go
Memory: from 512mo to 2go
Motherboard: Dell and Asus
Motherboard Chipset: I845PE, I815, I965 and Nforce 4
Motherboard Bios:
Video Card: Geforce 4, FX, 7200 and 8600
Video Card Driver: Latest
Sound Card: Creative live, audigy and soundmax
Sound Card AC3:
Sound Card Driver:
1. TV Card: Floppy DTV-S
1. TV Card Type:
1. TV Card Driver: Latest
2. TV Card: Floppy DTV-S
2. TV Card Type:
2. TV Card Driver: Latest
3. TV Card: Floppy DTV-S
3. TV Card Type:
3. TV Card Driver: Latest
4. TV Card: Floppy DTV-S
4. TV Card Type:
4. TV Card Driver: Latest
MPEG2 Video Codec: Clean windows install, only those provided with MP
MPEG2 Audio Codec: Clean windows install, only those provided with MP
Satelite/CableTV Provider: Hotbird, Astra 1, Astra 2, Atlantic Bird 3 and Arabsat
HTPC Case:
Cooling:
Power Supply:
Remote: MCE
TV:
TV - HTPC Connection:


I have a problem with some channels with no sound : among them, CNN (on both astra 1 and 2), Euronews (Astra 1, 2 and hotbird), Demain TV (hotbird I think), Terranova (Astra 1 I think)... I think I came across other channels with no sound but I can't remember.
I tested on 4 different PC with very different configurations, some under xp, some under vista, most are clean windows install with nothing but latest drivers, mediaportal and the divx codec. TVServer runs on a dedicated server with 4 floppyDTV DVB-S in (on vista).
I think this is a codec issue as when I test with the very useful MPTvClientV1.1 + VLC I do get sound on those channels.

If anyone could help me fix this or understand what's wrong I would really appreciate.

Thanks

 

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Did you ever solve this problem ?

Im having the same problem with cnn on dvb-c using comhem in sweden.

 

Unfortunatly, no

I'm still looking for a solution (when I have time lol). I now know it's not cause of AC3 codec missing (It would have suprised me a lot that those channels were actually emitting in AC3 lol)

I installed progdvb on one of my computers and found out it solved the problem. Progdvb probably installed another mpeg2 codec that works better with those channels, but I'm not sure of anything yet.

Let me know if you make any progress.

 

TV-Server Version: Rev15317
MediaPortal Version: 0.2.3 RC1 Rev15317
MediaPortal Skin: BlueTwo
Windows Version: Windows 2003 R2 SP2
CPU Type: Intel Core2 Duo T5600 1830 MHz
HDD: Samsung HD401LJ 400GB
Memory: 2x512 MB DDR2 667MHz
Motherboard: AOpen i945GTm-VHL
Motherboard Chipset: Intel 945GT / Intel ICH7MDH
Motherboard Bios: R1.05
Video Card: NVIDIA GeForce 6600 LE passive
Video Card Driver: Forceware 93.71
Sound Card: Realtek ALC882D HD Audio (onBoard)
Sound Card AC3: coaxial out / optical out
Sound Card Driver: R1.54
1. TV Card: FireDTV BDA DVB-C (Floppy DTV)
1. TV Card Type: DVB-C
1. TV Card Driver: 02/04/2007, 4.8.0 BDA Driver
MPEG2 Video Codec: ffdshow
MPEG2 Audio Codec: ffdshow
Satelite/CableTV Provider: ISH tividi
HTPC Case: Silverstone LC11m silver
Cooling: 120mm Papst 4412F/2GLL / passive
Power Supply: mCubed EF16 160W external passive cooled
Remote: Wii Remote
TV: Panasonic TX-26LX50F
TV - HTPC Connection: S-Video


I used to use only ffdshow for decoding but the solution that worked for me was using the dscaler codec for getting audio on CNN and Euronews (DVB-C germany).


-level20peon


EDIT: maybe we can trigger the problem by comparing our stream files. I attached excerpts of some airings. Euronews and CNN won't give out sound in MediaPortal, ProSieben does.

I found following with G-Spot (I post only the audio part):

CNN:
Codec: MPEG-1 Layer 2
Info: 0xc0:48000Hz 128 kb/s , Monophonic

Euronews:
Codec: MPEG-1 Layer 2
Info: 0xc0:48000Hz 64 kb/s , Monophonic

ProSieben (4 Audiostreams):
Codec Stream 1: MPEG-1 Layer 2
Codec Stream 2: DVD_LPCM_AUDIO
Codec Stream 3: DVD_LPCM_AUDIO
Codec Stream 4: DVD_LPCM_AUDIO
Info Stream 1: 0xc0:48000Hz 192 kb/s tot , Stereo
Info Stream 2: 0xc0:48000Hz 192 kb/s tot , Stereo
Info Stream 3: 0xc0:48000Hz 192 kb/s tot , Stereo
Info Stream 4: 0xc0:48000Hz 192 kb/s tot , Stereo

 

I had the same problem here in Finland in Tampere TTV's DVB-C network with CNN, Travel Channel and couple of other channels.

I can confirm that using the dscaler audio coded for dvb viewing corrected the problem for me and now I can hear audio for all channel.

Thanks for the tip level20peon

 

Is there any way to register/install dscaler audio codec after mediaportal is installed without this codec?

 

After hearing DScaler would work fine for mono channels I switched some ffdshow audio configuration options: Switching "MP1,MP2" audio decoder from libmad to mp3lib solved the problem

 

Didn't work in my case unfortunately.


-level20peon