Pretty sure they were there before…
They just seem to have a mix of different sound effects for each character when pressed multiple times…
Try taunting more than once when in the character select stage, and it’s pretty noticeable there (less noise going on than in game)…
Mind you, I also haven’t played for coming up to 3 weeks, so maybe there could be something new I’ve missed?
(I haven’t seen the new skins or taunts yet - need to take a peak even if the game won’t function for me, sigh
)
Also, with a good set of headphones, or a decent quality headphone/mic set…
I find the sounds in the game are more enhanced through them, then just through my TV…
With my headphone/mic set on, I notice more of the subtle sound effects!