ELECTRONIC MUSICAL INSTRUMENT, KEY SCANNING METHOD AND KEY SCANNING PROGRAM

To provide an electronic musical instrument, a key scanning method, and a key scanning program that can achieve output of musical sounds with suppressed discomfort while minimizing number of times of key state detection as necessary.SOLUTION: A scan line to which a 2aX belongs in the middle of key p...

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Bibliographic Details
Main Authors TSUTAKI KEIGO, MURAI TAKAHIRO
Format Patent
LanguageEnglish
Japanese
Published 13.12.2023
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Summary:To provide an electronic musical instrument, a key scanning method, and a key scanning program that can achieve output of musical sounds with suppressed discomfort while minimizing number of times of key state detection as necessary.SOLUTION: A scan line to which a 2aX belongs in the middle of key press or key release is set as a priority line, and the priority line set for a scan order SS is inserted. By this, in one scan line detection based on the scan order SS, the scan line to which the key 2aX belongs in the middle of a key press or key release is detected multiple times, accordingly frequency at which the key 2aX in the middle of a key press or key release is detected can be increased. This allows detailed control of musical notes corresponding to the key 2aX, and thus suppresses discomfort of a user H with respect to the musical notes. In addition, since only a priority line is inserted into the scan order SS, the increase in the number of detection times of the key 2aX can be minimized as necessary.SELECTED DRAWING: Figure 5 【課題】鍵の状態の検出の回数を必要最小限にしつつも、違和感が抑制された楽音の出力を実現できる電子楽器、鍵スキャン方法及び鍵スキャンプログラムを提供すること。【解決手段】押鍵途中または離鍵途中の鍵2aXの属するスキャンラインが優先ラインに設定され、スキャン順SSに対して設定された優先ラインが挿入される。これにより、1回のスキャン順SSに基づくスキャンラインの検出において、押鍵途中または離鍵途中の鍵2aXが属するスキャンラインの検出が複数回行われるので、押鍵途中または離鍵途中の鍵2aXが検出される頻度を高めることができる。これにより、当該鍵2aXに対応する楽音を詳細に制御できるので、当該楽音に対するユーザHの違和感を抑制できる。また、優先ラインのみがスキャン順SSに挿入されるので、鍵2aXが検出される回数の増加を必要最小限にすることができる。【選択図】図5
Bibliography:Application Number: JP20220088146