Audio Description

this should sort it out for you..

Quote

If its BlackHole image you are using press Menu >> Setup >> System >> AV settings and select AC3 default, then that should sort it for 90% of channels for you.

Have a look here although i think its the same place as G suggested lol

failing that i found this

• Automatic audio language selection

Main menu -> Black Hole Apps -> Auto language selection setting

This feature was originally implemented by the Pli team.
The function allows you to set a list of four preferred languages that will be automatically selected when you switch to channels with multiple audio tracks.
This is very useful when zapping channels with foreign languages that also broadcast the original soundtrack. In this case it will automatically select the preferred language. The list is in order of importance so if your first language choice isn't an option it will switch to your second or third choice.
You also have the option to give preference to Ac3 soundtracks if they are available.

If you set "Prefer audio stream stored by service" to "No" when you visit a channel and you select a different language then by default the software will remember that preference, however with Autolanguage when you next zap back to that channel it will automatically select the language of your choice set above.