Performance-information apparatus for analyzing pitch and key-on timing
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United States of America Patent
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Jan 21, 1997
Grant Date -
N/A
app pub date -
Nov 4, 1994
filing date -
Nov 5, 1993
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Abstract
A performance-information analyzing apparatus, which is employed by an electronic musical instrument, is provided to analyze performance information which represents at least a pitch and a key-on timing with respect to each sound to be produced. A note length is calculated on the basis of a key-on interval representative of a time interval between two key-on timings. One note length, whose frequency of occurrence is relatively high, is selected from among a plurality of note lengths sequentially calculated with respect to a plurality of sounds to be produced. A pair of time and location of bar-line is automatically determined in accordance with a predetermined condition on the basis of the note length selected. The selection for the note length can be made under the consideration of the number of the notes which have the same pitch and which indicate a continuous sound to be described between two measures across the bar-line in the score. Thus, the score is formed by the performance information and the pair of time and location of bar-line and is visually displayed for the user, wherein the continuous sound is described by two or more notes with a tie between two measures across the bar-line.
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