Scream Fountain: As a new type of water feature entertainment project, it operates by converting the pitch and duration of human voice into analog voltage to control the frequency of a variable frequency drive. Adjusting the frequency alters the motor speed, which in turn modifies the pump pressure. This allows for control over the pump speed, adjusting the water flow rate and the height of the jets. Consequently, it determines the fountain's jet height and duration, making it an engaging and aesthetically pleasing water feature.