Patent ID: 7511216
Filing Date: 2009-03-31
Classification: G10H

Abstract:
1. A method for shaping amplitude contours of musical notes in time of particular pitch and duration, the method comprising: processing musical notes to modify a contour of an amplitude shape curve of each note differently in accordance with its relationship to its succeeding note, the processing comprising: calculating an initial amplitude shape curve using a function; and modifying the initial amplitude shape curve using the same function to generate a corrected amplitude shape curve, the modifying comprising determining a peak of the initial amplitude shape curve, modifying a pre-peak portion of the initial amplitude shape curve, and modifying a post-peak portion of the initial amplitude shape curve, the modifying the pre-peak portion comprising collapsing the initial amplitude shape curve in time to fit the pre-peak portion from a beginning of the initial amplitude shape curve to the peak of the initial amplitude shape curve, and adding the collapsed initial amplitude shape curve to or subtracting the collapsed initial amplitude shape curve from the pre-peak portion in a small proportion of a size of the initial amplitude shape curve.