Place it at the end of a character-select sequence, just before the versus screen, then follow it with Okay Let's Go as the match begins and Enemy Spotted when the opponent appears, keeping the confirm as the clear turning point between picking and playing.
關於此聲音
This is the short half-second confirmation sound from Street Fighter Alpha, the bright arcade chime that plays when a character selection locks in. It feels quick, punchy and satisfying, like a green light for the match ahead, and it comes straight from those classic fighting games.