Electronic percussion instrument, control device for electronic percussion instrument, and control method therefor

A control device for an electronic percussion instrument including a first housing and a second housing, wherein the first housing has a first struck surface and a first piezo sensor that converts a vibration of the first struck surface into an electric signal, and the second housing has a second struck surface disposed side by side with the first struck surface and a second piezo sensor that converts a vibration of the second struck surface into an electric signal, the control device comprising:

• a first generation part that generates a first musical sound signal based on the electric signal indicating the vibration of the first struck surface caused by a hit on the first struck surface;
• a second generation part that generates a second musical sound signal based on the electric signal indicating the vibration of the second struck surface caused by a hit on the second struck surface;
• a first delay circuit that delays the input first musical sound signal;
• a second delay circuit that delays the input second musical sound signal,
• wherein the first musical sound signal is input to a first amplifier that amplifies a signal to be connected to a first speaker disposed inside the first housing and on a back side of the first struck surface and in a range in which the first struck surface is projected in a direction perpendicular to the first struck surface, and is input to a second amplifier that amplifies a signal to be connected to a second speaker disposed inside the second housing and on the back side of the second struck surface and in a range in which the second struck surface is projected in a direction perpendicular to the second struck surface at a timing later than a timing of being input to the first amplifier by the first delay circuit,
• wherein the second musical sound signal is input to the second amplifier, and is input to the first amplifier at a timing later than a timing of being input to the second amplifier by the second delay circuit.

A control method for an electronic percussion instrument, wherein a control device for the electronic percussion instrument comprising a first housing and a second housing, wherein the first housing has a first struck surface and a first piezo sensor that converts a vibration of the first struck surface into an electric signal, and the second housing has a second struck surface disposed side by side with the first struck surface and a second piezo sensor that converts a vibration of the second struck surface into an electric signal, performs:

• generating a first musical sound signal based on the electric signal indicating the vibration of the first struck surface caused by a hit on the first struck surface;
• and
• inputting the first musical sound signal to a first amplifier that amplifies a signal to be connected to a first speaker disposed inside the first housing and on a back side of the first struck surface and in a range in which the first struck surface is projected in a direction perpendicular to the first struck surface, and inputting the first musical sound signal to a second amplifier that amplifies a signal to be connected to a second speaker disposed inside the first housing and on the back side of the second struck surface and in a range in which the second struck surface is projected in a direction perpendicular to the second struck surface at a timing later than a timing of being input to the first amplifier,
• generating a second musical sound signal based on the electric signal indicating the vibration of the second struck surface caused by a hit on the second struck surface;
• and
• inputting the second musical sound signal to the second amplifier, and inputting the second musical sound signal to the first amplifier at a timing later than a timing of being input to the second amplifier.