Patent ID: 8933316
Filing Date: 2015-01-13
Classification: G10C

Abstract:
1. A method of identifying a half pedal region in a keyboard musical instrument, the keyboard musical instrument including: a plurality of keys; a plurality of dampers provided in corresponding relation to the keys; and a pedal configured to control damping action of the plurality of dampers, the half pedal region being an operating region where neither effectiveness of each of the dampers nor cancellation of the effectiveness of each of the dampers responsive to an operation of the pedal is sufficient, the method comprising: an acquisition step of acquiring, for each of the dampers and over one stroke of the pedal in at least one of a depressing direction or a releasing direction of the pedal, loads imposed on a portion linked to the respective damper, in association with individual stroke positions of the pedal; and an identification step of identifying, for each of the dampers, the half pedal region based on relationship between the individual stroke positions and the loads, acquired in the acquisition step, corresponding to the individual stroke positions.