Initial short call from HR to know expected salary, why interested, etc. Then 2 programming tests, one on audio programming and one on general C++ programming. I think I took too long on the general test, I took like 3hrs when it was limited to 2hrs... in any case my performance on that test wasn't good enough to get an interview

Audio programming was quite basic, e.g., what is an audio sequencer, what is Pro Tools. Not really any programming questions in that one.

For the general tests, assembly questions (which I ignored), some C#, and some general math/3D questions, like how many vertices are required to be rendered when a game is streaming with a given refresh rate and the player is moving at a speed of X m/s yadayada (pretty sure I bombed that one lol).