Filter Problems

[imilne]

I'd appreciate any help with the following...

I'm having audio problems with an HD channel (STV HD in Scotland) that uses mpeg4 video but only mp2 audio. All my other - working - HD sources have AC3 audio, and that's the only difference I can think of between them.

Basically audio in live TV is working fine, but not in playback of recordings. Loading the recorded file into GraphStudio appears to build the correct graph and the audio is there. It must be a filter/priority setting of some sort but I can't seem to work out what. I'm using ffdshow, and have tried both setting it as the audio decoder explicitly in config and leaving the setting to system default. I've also tried the PDVD decoder with the same outcome.

The attached log file hopefully shows Live TV first, followed by recorded playback.

Thanks

[imilne]

No-one else using STV HD then? Not that I can blame you. I only want it working because it's there; I can't remember the last time I actually watched anything on it other than World Cup matches

[imilne]

Might as well add that NPVR on the same machine plays the recordings fine, so that's a good sign for when I finally switch over.