JPS63298289A - Performer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a musical performance device, and particularly to a musical performance device that can perform performances with an added human touch.

``Prior Art'' When humans play chords, even if chords are shown to be played at the same timing on a musical score, they are often played at slightly different timings.

This kind of deviation adds a human touch to the performance, resulting in a pleasant performance with rich musicality.

Among conventional performance devices for single-note performance, one was developed in which the note length data itself was set by slightly shifting it (Japanese Patent Application Laid-Open No. 62-52597).
Nothing had been developed that could play multiple notes with a slight timing shift.

``Problems to be Solved by the Invention'' By the way, in the method of shifting and setting tone length data, there is a problem that the data input operation becomes extremely complicated because the tone length data must be input for the entire song. arise.

In addition, in conventional electronic musical instruments, 1. Since a corresponding musical tone is generated when a key or the like is operated, it requires advanced technique to play multiple tones with slight timing shifts, which can be difficult for beginners.

This invention was made in view of the above-mentioned circumstances, and it is possible to subtly shift the pronunciation timing in multi-note performance without complicating data input, and also to slightly shift the timing of multi-note play with a simple operation during manual performance. The purpose of the present invention is to provide a performance device that can be played using the following methods.

"Means for Solving the Problems" In order to solve the above problems, the present invention provides a performance data generation device that can simultaneously generate performance data for multiple notes;
a musical tone generating means for generating musical tones based on the performance data output from the performance data generating device, and performance data for a plurality of notes being simultaneously output from the performance data generating device;
and detecting means for detecting that the pitch difference between at least two tones corresponding to each outputted performance data is equal to or greater than a predetermined pitch; and timing signal generating means for generating a timing signal at a predetermined measure or a predetermined beat. When the timing signal is output and the detecting means detects a double note with a predetermined pitch difference, the timing of producing at least one note among the notes corresponding to each performance data is set at an interval shorter than the minimum note. and timing adjustment means for shifting the timing.

"Function" When a timing signal is output and a compound tone having a predetermined pitch difference is generated, the timing of its sound generation is shifted by an interval shorter than the minimum note.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a first embodiment of the present invention. In the figure, 1 is a tempo clock oscillator that generates a tempo clock TCL that determines the tempo of a song. The period of the tempo clock TCL is set, for example, to be sufficiently smaller than the minimum note (16th note or 32nd note) and to be one fraction of an integer. 2 is a counter that counts the tempo clock TCL,
While supplying the count result to the pattern memory 3,
A timing signal Sa is output at the first beat of one measure. The pattern memory 3 stores rhythm patterns corresponding to various rhythms, and one of these rhythm patterns is selected by the rhythm selector 4.

Further, the pattern memory 3 outputs pattern data of the selected rhythm according to the count result of the counter 2, and supplies it to the rhythm sound source 5. Rhythm sound source 5 is snare drum, bass drum, cymbal (open/closed)
Each of the sound sources is driven based on the rhythm pattern data supplied from the pattern memory 3 to create a rhythm sound signal SII. The rhythm sound signal SR is supplied to the sound system 6, where it is sounded as a musical tone.

Next, IO is an automatic performance data memory (RAM) in which performance data for automatic performance is stored. The write/read control circuit 11 is a circuit that controls reading and writing of data to the automatic performance data memory 10, and updates the access address based on the tempo clock TCL during reading.

That is, the note length data in the performance data read from the automatic performance data memory IO and the tempo clock TCL
When the count value corresponds to the note length data, the address corresponding to the next performance data is supplied to the automatic performance data memory IO. in this case,
Reading starts when the switch SWa is turned on, and reading ends when the switch SWb is turned on. The performance data read from the automatic performance data memory 10 is supplied to a demultiplexer 12, where it is divided into five channels of data. That is, the performance data includes five types of key data, and the demultiplexer 12
Based on the high-speed clock φ supplied from the write/read control circuit 11, five types of data are assigned to each channel, and each performance data is sampled and held. Here, the five types of data refer to one upper key (
Melody key) data, 3 lower key (chord keys) data, and 1 pedal key (bass note key)
Upper key data is assigned to channel 1, lower key data is assigned to channels 2 to 4, and pedal key data is assigned to channel 5. In this case, each piece of performance data sequentially read out from the automatic performance data memory 10 consists of one key data or a plurality of key data that should be sounded simultaneously. The number changes depending on the number of simultaneous sounds.

Demultiplexer! The lower key data LK1 to LK3 and the pedal key data PK output from the second to fifth channels of the musical tone signal forming circuit 13 are supplied to the musical tone signal forming circuit 13,
Here, the signal is converted into a musical tone signal and then supplied to the sound system 6. Further, the upper key data tJK output from the first channel of the demultiplexer 12 is supplied to one input terminal of the selector 14, and is also supplied to the delayed upper key data UKd via the D flip-flop 15.
After that, it is supplied to the other input terminal of the selector 14.

The D flip-flop 15 operates using the tempo clock TCL as a clock signal, and delays the upper key data UK by one cycle of the tempo clock TCL. Selector 1
The upper key data UK or delayed upper key data UKd outputted from 4 is converted into a musical tone signal by a musical tone signal forming circuit 13, and then supplied to the sound system 6.

A keyboard 18 is composed of a large number of key switches, and its output signal is converted into a musical tone signal by the musical tone signal forming circuit 13 and then supplied to the sound system 6. This keyboard 18 is used when the player performs manually.

Next, 20 is a lowest note detection circuit that detects the lowest note of -LKs in the lower key data t, and the lowest note key data MLK detected here is supplied to the B input terminal of the digital subtractor 21. be done. The digital subtracter 21 subtracts the lowest key data MLK supplied to the B input terminal from the upper key data UK supplied to the A input terminal, and transfers the pitch difference data DK, which is the result of this subtraction, to the digital comparator 2.
2 to the input end. Also, ORI and ff-0R
Reference numeral 2 denotes an OR gate whose input terminals each have a plurality of bits, and all bits of the upper key data UK and the lowest key data MLK are supplied to each input terminal.

The output signals of these OR gates OR1 and OR2 are supplied to the input terminal of an AND gate ANI, and the output signal of the AND gate ANI is supplied to the enable terminal EN of the digital subtracter 21.

Therefore, if the upper key data UK is not output from the automatic performance data memory IO, or if none of the lower key data LKl-LKs is output, the digital subtracter 21 does not operate. In other words, the digital subtracter 21 does not operate when only chords or melody tones are played. In this way, the OR gates ORI, OR2 and AND gate ANI are the upper key data UK (melody sound) and the lower key data L.
Perform compound note detection between K and ~KLs (chords),
The digital subtracter 21 is enabled only when a double tone is detected.

The digital comparator 22 compares the output data of the digital volume 24 supplied to the B input terminal with the pitch difference data DK supplied to the B input terminal, and sets the output signal sb to "1" when A>H. Signal. That is, when the pitch difference data DK is a pitch difference that exceeds the set value of the digital volume 24, the signal sb becomes "1°. Therefore, by changing the set value of the digital volume 24, the pitch difference to be detected can be set arbitrarily. The AND gate AN2 takes the logical product of the signals Sa and sb, and supplies the signal Sc, which is the result of the operation, to the control terminal of the selector 14.

Next, this embodiment with the above configuration will be described.

Now, the automatic performance data memory IO outputs the performance data corresponding to the musical score shown in FIG.
2, H3 is changed to note Ll by upper key data UK.
, L2. Assume that L3 is played by either lower key data LK or -LK@.

In this case, at the first beat of each measure shown in FIG. 2, the signal Sa becomes a "1" signal, and the setting value of the digital volume 24 is set to, for example, a difference of 3 degrees or 5 degrees. Then, at the first beat of each measure, the signal s
b also becomes a "1" signal. As a result, at the first beat of each bar, the signal Sc becomes an "l" signal, and the selector 14
selects delayed upper key data UKd. Therefore, the notes H1, H2, and H3 shown in FIG. 2 are each the note Ll
, L2. With respect to L3, the sound is generated with a slight time delay corresponding to the tempo clock TCL. On the other hand, at beats other than the first, the signal Sc does not become an "l" signal, so the selector 1
4 selects upper key data UK, and as a result, the melody sound is not delayed and is sounded simultaneously with other chords on the musical score.

Next, FIG. 3 is a block diagram showing the configuration of a second embodiment of the present invention. This embodiment differs from the first embodiment described above in that a selection delay circuit SDC consisting of a D flip 70 knob 15 and a selector 14 is also provided for each of the lower key data LKI to LK3. .

However, the D flip-flop 15 in the selection delay circuit SDC provided for the upper key data UK is
Tempo clock TCL 178 cycle clock (1/8
TCL), and lower key data LK1, L
Each D flip-flop in the selection delay circuit SDC provided for K2 is connected to one of the tempo clocks TCL.
/4, L/611 period clock (1/4TCL, 1/6
The difference is that the D flip-flop in the selection delay circuit SDC provided for the lower key data LK3 operates in accordance with the tempo clock TC. According to such a configuration, when the signal Sc becomes the 1lt11 signal, the lower key data LK3→LK2→
The sound is generated in the order of LKI→upper key data tJK with a slight timing delay (one cycle of tempo clock and TCL). Therefore, for example, a performance effect similar to when a stringed instrument such as a guitar is played down from the 6th string side to the 1st string side at once can be obtained.

In the above embodiment, the delay times of the selected delay circuits SDC are different, but the delay times may be made equal.

Furthermore, in each of the above embodiments, the performance data output from the automatic performance data memory 10 is delayed under predetermined conditions, but the above-described processing is performed on the key data output from the keyboard 18. It may be configured as follows.

Furthermore, in each of the above embodiments, compound tones were detected between melody notes and chords, but the method for detecting compound tones is not limited to this. You may.

Furthermore, in each of the above embodiments, the timing of the sounding of the first beat of a measure is slightly shifted, but of course,
Processing similar to that described above may be performed for other beats or for specific measures.

"Effects of the Invention" As explained above, according to the present invention, there is provided a performance data generation device that can simultaneously generate performance data for a plurality of notes, and a musical tone based on the performance data output from the performance data generation device. Performance data for a plurality of tones are simultaneously output from the musical sound generation means and the performance data generation device, and the pitch difference between at least two tones corresponding to each of the output performance data is equal to or greater than a predetermined pitch. a timing signal generating means for generating a timing signal at a predetermined measure or a predetermined beat; when the timing signal is output and the detecting means detects a double note with a predetermined pitch difference; Since the device includes a timing adjustment means for shifting the sounding timing of at least one note among the sounds corresponding to each of the performance data by an interval shorter than the minimum note, it is possible to finely adjust the sounding timing in a multi-note performance without complicating data input. Furthermore, even in manual performance, it is possible to play multiple notes with a slight timing shift with a simple operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a musical score showing a performance example in this embodiment, and FIG. 3 is a block diagram showing the configuration of a second embodiment of the present invention. 2... Counter (timing signal generation means),
14...Selector (timing adjustment means), 1
5...D flip-flop (timing adjustment means), 20...lowest sound detection circuit, 21...
...Digital subtractor, 22...Digital comparator (20 to 22 are detection means), ORI, OR2
...OR gate (detection means), ANI...
. . . AND gate (detection means), SDC . . . selection delay circuit (timing adjustment means).

Claims (4)

[Claims] (1) A performance data generation device that can simultaneously generate performance data for a plurality of notes; a musical tone generation means that generates musical tones based on performance data output from the performance data generation device; Performance data for multiple notes is output,
and detecting means for detecting that the pitch difference between at least two tones corresponding to each outputted performance data is equal to or greater than a predetermined pitch; and timing signal generating means for generating a timing signal at a predetermined measure or a predetermined beat. When the timing signal is output and the detecting means detects a double note with a predetermined pitch difference, the timing of producing at least one note among the notes corresponding to each performance data is set at an interval shorter than the minimum note. A performance device characterized by comprising: a timing adjustment means for shifting the timing. (2) The performance device according to claim 1, wherein the detection means detects multiple tones and pitch differences between performance data for melody sounds and performance data for accompaniment sounds. (3) The performance device according to claim 1, wherein the performance device is a keyboard section consisting of a plurality of keys. (4) The performance device is comprised of a storage means in which performance data for automatic performance is stored, and a reading means for reading out the performance data in the storage means. The performance device described in Section 1.