JPS6449995U - - Google Patents

Description

[Brief explanation of the drawing]

1A to 1C are diagrams for explaining an example of the operation of this invention, FIG. 2 is an overall perspective view of an electronic stringed instrument according to an embodiment of this invention, and FIG. 3 is a cross-sectional view showing an example of the configuration of a frett switch. Figure 4 is a sectional view showing an example of the configuration of a string trigger switch, Figure 5 is a diagram of the overall circuit configuration, Figure 6 is a diagram showing the general flow of the microcomputer, and Figure 7 is a detailed diagram of string trigger detection processing. FIG. 8 is a diagram showing the sound source control register, FIG. 9 is a detailed flowchart of the assignment and sound processing in FIG. 7, etc., and FIG. 10 is a detailed flowchart of fret state change processing. , FIG. 11 is a detailed flowchart of the assignment and sound processing in FIG. 10. 1... Body, 4... Strings, 8... Finger board, 30... Microcomputer, 60... Musical sound generation circuit, TSW... String trigger switch, F
SW...Flat switch.

Claims (1)

[Claim for Utility Model Registration] At least one string stretched on the body of the musical instrument is provided with a string trigger switch that detects the start of vibration of the string when the string is played. , a fret state sensing means is disposed on the fingerboard for sensing the fretted position when a plurality of fretted positions belonging to the at least one string are manipulated, and the string trigger switch causes the string trigger switch to detect the fretted state of the string. In an electronic stringed instrument of the type that, when the start of vibration is detected, starts producing a musical tone related to the string that has started vibrating at a pitch corresponding to the fretting position detected by the fretting state sensing means, While a musical tone of a pitch corresponding to a predetermined fret operation position is being produced by string operation, while the above fret operation position is being operated continuously, at another fret operation position to which the above string belongs,
In addition, when the fretting state sensing means detects that a fretting position on the pitch side is operated relative to the fretting position associated with the sound generation, the musical tone being sounded is rapidly muted from the time of sensing. and a first musical tone control means for controlling to newly start producing a musical tone of a pitch corresponding to the fret operation position on the pitch side; If the fret state sensing means detects that an operation on each fret operation position to which the string belongs is performed in a manner different from the above case while a musical tone of the corresponding pitch is being produced, Control is performed to change the pitch of the musical tone being generated to a pitch corresponding to the fret operation position at which the operation for each of the fret operation positions has been performed without rapidly muting the musical tone being generated from the point in time. An electronic stringed instrument characterized by comprising the musical tone control means of 2.