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US08809665B2 Electronic percussion gestures for touchscreens 有权
触摸屏的电子打击乐器手势

Electronic percussion gestures for touchscreens
Abstract:
Methods, computer program products, and systems for receiving gestures and producing percussion instrument signals are disclosed. An exemplary method includes receiving a gesture on an area of a touchscreen representing a percussion instrument and generating a signal based on the gesture and area. The gesture can be a single point initiation touch on an area, and a drag into another area. The gesture can be a two-touch point initiation touch on a first area, and a change in distance between the points to change a first parameter such as repeat rate. Such gestures can further include translation of the touch points as a group along an axis to change a second parameter such as volume, pitch, or reverb.
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