JPH0244791U

JPH0244791U -

Info

Publication number: JPH0244791U
Application number: JP12351088U
Authority: JP
Priority date: 1988-09-22
Filing date: 1988-09-22
Publication date: 1990-03-28

Description

[Brief explanation of drawings]

第１図はこの考案を適用して構成したデイレイ
トリガー機能付電子楽器の全体回路図、第２図は
録音／マルチデイレイ再生に関連して使用される
レジスタ群を示している図、第３図は録音／マル
チデイレイ再生の動作の流れを示している図、第
４図は演奏イベントについての記録及び再生の動
作例を処理ステツプに対応させて示している図、
第５図は、第４図の各処理ステツプでのバツフア
及びポインタの動きを示している図、第６図及び
第７図は従来技術の説明するための模式図である
。１……ＣＰＵ、２……鍵盤部、３……スイツチ
部、５……ＲＯＭ、６，８……ＲＡＭ、７……音
源ＬＳＩ、９……サウンドシステム。 Figure 1 is an overall circuit diagram of an electronic musical instrument with a delay trigger function constructed by applying this invention, Figure 2 is a diagram showing a group of registers used in connection with recording/multi-delay playback, and Figure 3. 4 is a diagram showing the flow of recording/multi-delay playback operations, and FIG. 4 is a diagram showing an example of recording and playback operations for performance events in correspondence with processing steps.
FIG. 5 is a diagram showing the movement of the buffer and pointer at each processing step in FIG. 4, and FIGS. 6 and 7 are schematic diagrams for explaining the prior art. 1... CPU, 2... Keyboard section, 3... Switch section, 5... ROM, 6, 8... RAM, 7... Sound source LSI, 9... Sound system.

Claims

[Claims for Utility Model Registration] A sequencer memory, a recording address pointer means that is incremented each time a recording access is made to the sequencer memory, and a recording timer means that measures the time information of a performance event in a performance input device. sequencer recording processing means for recording a code of the performance event and occurrence time information indicated by the recording timer means in an area of the sequencer memory indicated by the recording address pointer means in response to the occurrence of a performance event from an input device; , comprising a playback address pointer means that is incremented each time the sequencer memory is accessed for playback, and a playback timer means that is initially set to a value delayed by a predetermined time from the recording timer means, the sequencer memory indicated by the playback address pointer means. sequencer playback processing means for executing the corresponding performance event when the occurrence time information of the performance event recorded in the area matches the content of the playback timer means; and in addition to the execution of the performance event by the sequencer playback processing means; The code of the played performance event is stored in the area of the sequencer memory indicated by the recording address pointer means, and the time information indicated by the recording timer means is stored at the address immediately before the address indicated by the recording address pointer means. An electronic musical instrument with a delay trigger function, comprising a control means for recording the time length of an event.