Mono audio tracks problem (1 Viewer)


Portal Member
January 12, 2009
Home Country
Italy Italy
TV-Server Version: 1.0
MediaPortal Version:
MediaPortal Skin: Black & White 1080
Windows Version: Windows XP Pro SP3
CPU Type: Intel Pentium CORE 2 DUO E4500 2.2GHZ
HDD: 2 x Hitachi DeskStar 500 GB
Memory: 2 x KINGSTON - Dimm 1 Gb ddr2 667 Mhz Non-Ecc CL5
Motherboard: Asus P5B-MX/WIFI-AP
Video Card: Asus EAH2400PRO+ATI DVI2HDMI adapter
Video Card Driver:
Sound Card: Integrated in Asus EAH2400PRO
Sound Card AC3: no AC3
Sound Card Driver:
1. TV Card: FireDTV T/CI+Smarcam Samsung
1. TV Card Type: DVB-T
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: MPV Decoder Filter
MPEG2 Audio Codec: MPA Decoder Filter
h.264 Video Codec: ATI MPEG4 Video Decoder
Satelite/CableTV Provider:
HTPC Case: Antec NSK1380
Power Supply:
Remote: FireDTV Remote
TV: Panasonic TH-37PV60E
TV - HTPC Connection: HDMI

I think there is a problem while reproducing live channels with mono audio tracks. I can't hear any sound during live playback and during recorded ts file playback too. Sometimes also the video freezes as soon as I zap into the channel, so I need to continuously zap in/out the channel until the video starts to play normallly (but still with no audio).

It could be the same issue reported here but I didn't find a solution yet.

Here is a recording of a live channel with all the audio tracks in mono: video1

and here a second recorded live channel with one stereo audio track (that works perfectly) and two tracks mono: video2.

VLC reproduces both files correctly as well as GraphEdit. The only way I got to let MP reproduce them correctly is changing the file extension to other than ts (i.e. mpg) but however I still have the issue during live playback.

Any suggestion is really appreciated.
Thanks in advance.


Portal Member
January 12, 2009
Home Country
Italy Italy
Did anybody get to successfully reproduce the two files (video1/2) with Mediaportal?

Thanks in advance.

Paranoid Delusion

Moderation Manager
  • Premium Supporter
  • June 13, 2005
    Home Country
    United Kingdom United Kingdom
    The only way I know around this is to install ffdshow and select this as your audio codec.

    You need to change under the audio config\codec MP!\MP2 format and change the libmad to libavcodec, this gives better support for mono channels.

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