I have recently exported a video using the HEVC Main Profile setting, swapping aac to alac without making any change to the bitrate setting even though it seemed kind of low to me. I also made several audio tracks using the audio/ALAC setting (which gives a higher default bitrate of 384k instead of the HEVC Main Profile’s 256k) but since less was going on in them, their bitrates were actually a little lower. Also all of them had like bitrates of 1k-2k.
I feel like my question has a fairly obvious answer (of “no”), but I’d like to ask anyway. Does the bitrate setting do anything when you’re exporting lossless audio like ALAC? If not, why is the default bitrate changed from 256k to 384k with lossless audio options?