No more upmix to 5.1 from recent SVNs

[rsbrux]

It seems that the recent SVNs no longer upmix properly. At least with today's release, I get no output from my rear speakers when playing MP3 files, even though I have enabled upmix to 5.1 (BASS player) in the MP configuration. There are no errors in the logs. IIRC, this worked correctly with the 2.3.0 stable release.

TV-Server Version: n/a (TVE2)
MediaPortal Version: 0.2.3.0 SVN
MediaPortal Skin: BlueTwo wide
Windows Version: XP MCE RU2
CPU Type: Intel Pentium 4 @3 GHz
HDD: Samsung HD501LJ 500GB
Memory: 3 GB DDR 400 DIMM
Motherboard: FIC P4M-915GD1-LF
Motherboard Chipset: Intel i915G / iCH6
Motherboard Bios: Phoenix 6.00 PG 10 May 2006
Video Card: Nvidia GeForce 6600
Video Card Driver: 9.1.4.7
Sound Card: Realtek High Def. Audio
Sound Card AC3: no AC3
Sound Card Driver: 5.10.0.5178
1. TV Card: Hauppauge HVR-1300 MCE
1. TV Card Type: hybrid (only analog section in use)
1. TV Card Driver: 2.119.25023.0
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: dScaler
MPEG2 Audio Codec: dScaler
Satelite/CableTV Provider: Telezug (WWZ) Switzerland
HTPC Case: FSC Scaleo E (FIC Spectra)
Cooling: OEM
Power Supply: OEM
Remote: PDAwin.com TVRC 5.5
TV: InFocus TD40
TV - HTPC Connection: DVI

[hwahrmann]

Have not changed anything in BASS since a while.
must be related to your installation. try reverting back to 0.2.3 stable and see if it still works there.

[rsbrux]

Sorry, my bad! After restoring my last 2.3.0 stable release (SR) configuration, I still had no rear channel sound. So I started to suspect it had something to do with something else in my configuration (outside of MP).
As it turned out, due to rolling back to a backed up OS installation before installing MP 2.3.0 SR, my sound card was only configured for 2 channels! After configuring it for 4 or 6 channels I get rear channel sound. I still can't quite get an ideal situation, because I actually have 4.1 instead of 5.1. If I choose 4 channels, I get no subwoofer output. OTOH, with the sound card set for 6 channels, the center channel information is removed from the front channels, making them quite weak. For the time being I will just settle for 4 channel, unless you know a better way to configure MP for 4.1. Thanks for responding, now all I have to do is upgrade to SVN again!