Place it at the cut where a character or username appears on screen, then follow it with the Discord Call Sound Button when the chat turns into a call, or precede it with the Classic Error Sound Button when the login attempt fails first.
關於此聲音
This is the short MSN Messenger contact online alert, a bright two-tone chime that plays in about one and a half seconds when a friend signs in. It feels instantly warm and cheerful, like a little hello arriving on screen. The clip comes from MSN Messenger in the early 2000s, when that pop announced someone was finally online to chat.