Place it right on the tile claim in your edit, after a pop sfx marks the discard landing, then follow it with a click nice button press to close the sequence cleanly for viewers watching the board.
About this sound
This is a sub-second voice clip of Ichihime from Mahjong Soul calling 'Pon' to claim a discard, delivered in her bright cat-like tone. It feels playful and triumphant, like snatching a win in miniature, turning a routine mahjong call into a cute, smug little celebration for the player who made it.