During start-up, only one language code is set for all decks.
To change this language later, or to use more than one foreign language, the language code can be changed in the deck options.
Each deck has an options group, but these groups can be shared between decks. See the Anki manual for more details.
To change the language for an options group, first click on the gear
button to the right of the deck name, then on
This will open the
Options for NN dialog. Click on the
General tab and change the
Audio download language code.
Adding deck options
When learning different languages, arrange the cards in different decks and add an option groups for each deck:
As above, click on the gear and select
Options. In the
Options for NN dialog, near the top, beside the option group
name list, there is another gear button. Click on that and select
Add. Enter a new name. Putting the language name into the
options name helps keeping them apart. Then, go to the
tab and set the language code again.