I haven't noticed any issue myself. The stall sound triggers and then continues to play for a set duration i think. So if you regain speed it will still sound for a bit. If you just hear it when cruising maybe log it in the technical issues section with some detail like aircraft being flown, whether in a campaign etc. And i think normally the log file is of use to them.
I think i do still get odd clanking noises when I'm not damaged (which i think was mentioned in the patch) but as I have a stupid amount of mods running I'm inclined to think it's something I've done!