This sound is created from tinkle sound recorded by IC recorder and apply Delay:
Delay type: Bouncing ball
Delay level per echo: -1 dB
Delay time: 0,050
Pitch change effect: pitch/tempo
Pitch change per echo: -1,0%
Number of echoes: 30;
and pitch/speed - 75% in Audacity. 聲道:2 類型:wav fairitale、jingle、machine、tinkle、spell、bell、magic 資料來源:freesound ( https://freesound.org )