How does Clapper determine which audio track to play for a video?

[rumemo]

The version I run under LMDE 6 will sometimes play a foreign language on a YouTube video. The same video plays in English (my language) in the Brave browser.

Clapper 0.6.1 reports: GLib 2.78.6 GTK 4.12.5 Adwaita 1.4.7 GStreamer 1.22.8