I didn't make it clear enough.
I downloaded the TS files from the HUMAX onto my computer using the USB link.
I then connected my USB disk drive with the TS file on it to the SlingCatcher.
The Humax records the TS stream "as is" and the problem is that many UK DVB-T transmissions have TWO audio streams.
The first audio stream in this case is an audio description track.
The main audio track is the second stream.
I would like a way of switching to the correct audioo stream on the SlingCatcher.
Obviously I can process the file to remove the first audio stream, but this is not a convenient solution.
I can of course supply a small TS file if this helps.
If it works like the SlingPlayer you may need to choose either the right or left channels to hear the audio. Might try both and see if it will pick up that channel.
SlingCatcher lets you choose if you hear stereo audio from a Slingbox, or left or right audio channels only. To make this selection, press the OPT key on the SlingCatcher remote control until you see the “Audio” button. Select this and then pick the audio channel selection following the on-screen instruction