ELECTRONIC WIND INSTRUMENT, MUSIC SOUND PRODUCTION INSTRUCTION METHOD AND PROGRAM

PROBLEM TO BE SOLVED: To provide an electronic wind instrument for producing a music sound using a sound production principle of a whistle.SOLUTION: A CPU measures a resonance frequency which is varied according to a state of an oral cavity of a player who holds a mouthpiece 2 in his/her mouth, acquires a pitch f1 of a chromatic scale which is close to the resonance frequency, then acquires a pitch f2 of the chromatic scale which is close to a pitch frequency which is extracted from a waveform formed by a breath blown to the mouthpiece 2. When the pitches f1, f2 match, the pitch f1 (or pitch f2) is set to a sound production pitch F, and when the pitches do not match, the pitch f1 is set to the sound production pitch F with priority. When the breath is blown to the mouthpiece 2, a note-on event containing a volume corresponding to the sound production pitch F and breath pressure data is generated and is sent to a sound source part, and when blowing of the breath is stopped, a note-off event is generated and is sent to the sound source part.SELECTED DRAWING: Figure 1 【課題】口笛の発音原理を用いて楽音を発生する電子管楽器を提供する。【解決手段】ＣＰＵは、マウスピース２を咥える吹奏者の口腔内の状態に応じて変化する共振周波数を測定し、当該共振周波数に近いクロマチック音階の音高ｆ１を取得し、さらにマウスピース２に吹き込まれる息で形成される波形から抽出したピッチ周波数に近いクロマチック音階の音高ｆ２を取得する。音高ｆ１と音高ｆ２とが一致すれば、音高ｆ１（又は音高ｆ２）を発音ピッチＦに設定し、一方、一致しなければ、優先的に音高ｆ１を発音ピッチＦに設定する。マウスピース２に息を吹き込んでいれば、発音ピッチＦおよび息圧データに対応した音量を含むノートオンイベントを発生して音源部に送付し、息が吹き込まれなくなると、ノートオフイベントを発生して音源部に送付する。【選択図】図１