AAC-LC audio

[UKenGB]

I have a couple of films recorded from FreeView in the UK. The audio tracks are in AAC LC format. I can play both in VLC and hear the audio tracks, although in one of them I have to select different audio (e.g. Audio Described or simply disable) first and then back to the main track. But the full and correct audio is there.

If however, I open these in avidemux the audio is ok up until the channel (BBC) ident and then it becomes garbled. I can only assume that avidemux has problems with the AAC LC audio. Can anyone shed any light on why it might have trouble like this and any possible cure?

[Jan Gruuthuse]

Are you certain? Freeview is this not DVB-T(2) recording?
If yes, most likely it is switching between stereo and ac3 5.1 as described here: Garbled sound on some HD recordings
Main audio track in live streaming switches between stereo and 5.1
DVB-S(2) has not this problem: dedicated audio track for ac3.

[UKenGB]

Yes, thanks, exactly the problem I am experiencing. I will continue there.