Aircraft voice lines missing

[hazelnot]

Aircraft only have the radio static sound effect playing when you select/give them an order, the actual voice lines are missing.

Had to upload my video to YouTube, since presumably it was too big to put it here, so here it is: https://youtu.be/L7koXvhNb9Q

[Fighter19]

Thanks, I discovered that quite a few more issues with the audio are still open.
I'll try to see if I can get this figured out.

Quite a bunch of voice lines, that use the music track especially are not playing.

(For debugging purposes on a debug build, you can use SHIFT+A to display the streams that should be playing).