Place this clip at the start of the birthday segment, before the main footage rolls, then follow it with a kids cheering sound effect once guests react on camera to build the party energy in sequence.
关于此声音
This is a short voice clip of about three and a half seconds with a speaker clearly announcing "It's my birthday." The line is delivered as a plain, proud declaration that needs no context to understand. It gives a listener an upbeat, celebratory and slightly self-centred feeling, like someone happily claiming the spotlight for their own special day.