JP3671105B2 - Distributed chord output device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a distributed chord output device that automatically outputs a distributed chord with respect to a chord input by simultaneously pressing a plurality of keys.
[0002]
[Prior art]
In general, many keyboard instruments such as synthesizers have a function of repeatedly outputting a distributed chord (arpeggio) and automatically, a so-called arpeggiator function. For example, if you press the key “D, M, S, and S” at the same time on the keyboard arranged on the keyboard instrument, the chord of “DO, M, S, and S” is usually output, but the arpeggiator function is selected. If this is done, each single tone of “do”, “mi”, “so”, and “shi” is output while being repeated at regular intervals. That is, the melody as shown in FIG. 5 is output continuously.
[0003]
In FIG. 5, the arpeggio output pattern is set in ascending order, that is, switching from low pitch to high pitch sequentially. On the contrary, it is set in descending order or in random order. You can also. That is, in descending order, it is output in the order of sh, so, mi, de, and when set in a random order, for example, arpeggios may be output in the order of de, so, mi, sh, etc. Is possible.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional distributed chord output device, although it is possible to change the output order of arpeggios, only a single sound can be output, and a complex sound (synthesized sound composed of two or more single sounds) or The chord (the chord that was pressed) could not be set. Therefore, there has been a demand for an invention of a distributed chord output device that can set a wider output pattern with a narrow output pattern setting range.
[0005]
The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a distributed chord output device capable of setting not only a single sound but also a complex sound in an output pattern. It is in.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, in the distributed chord output device capable of distributing and outputting the chord to the depressed chord input, each step assigned in time series for each strength shows 1 bit of information assigned to each pitch bits which are arranged in correspondence with each pitch constituting the depressed chord, the strength of the output sound in the step a set index, has a pattern memory for storing a length setting index indicating the length of the output sound in the step corresponding to the pitch bits allocated to information of the bit stored in the pattern memory The pitch to be played is repeatedly output in the order of the steps in the strength indicated by the strength setting index in the step and the length indicated by the length setting index.
[0008]
According to the invention configured as described above, each step in the pattern memory, if write the information of one bit assigned to each pitch bits which are arranged in correspondence with each pitch advance since the musical tone according to automatically contents stored in the pattern memory after entering the chord is output by the pitch corresponding to the pitch bits allocated to one bit of information, the output of broad arpeggio width Is possible. In addition, the strength setting index can be adjusted, so if you set this value large, it will become an accent, and if you set it to zero, it will become a rest, so you can set the output pattern according to your preference . Furthermore, since the length setting index can be adjusted, if this numerical value is set small, it becomes staccato, and if it is set large, it can be tenuto.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a hardware configuration of a distributed chord output device according to an embodiment of the present invention. As shown in the figure, this distributed chord output device is a key for reading information on a pressed keyboard 1. According to commands from the scanner 2, the CPU 3 serving as the control center, the ROM 4 storing the system program, the RAM 5 for reading and writing data, the timer 6 for setting the time, the pattern memory 7 and the CPU 3 And a sound source 8 that outputs a musical sound signal.
[0010]
The pattern memory 7 has a matrix-like storage pattern as shown in FIG. 2, and a plurality of steps (eight steps in this case) correspond to a plurality of pitch bits (eight in this case). Each bit is assigned. Also, an index (0 to 100) indicating the strength of the output sound and an index (1 to 100) indicating the length are set for each step.
[0011]
Next, the operation of the present embodiment configured as described above will be described. First, the musical instrument player sets data in the pattern memory 7 in advance according to his / her preference. In the example shown in FIG. 2, since data exists only for four pitches from pitch bit 0 to pitch bit 3, it is assumed that four-tone chords are input. Here, for example, if the performer simultaneously presses the keys of “do, mi, so, shi”, “do” in pitch bit 0, “mi” in pitch bit 1, “so” in pitch bit 2, and "Shi" is assigned to each pitch bit 3, and musical tone information is output in time series in the order of steps 1-8.
[0012]
More specifically, in step 1, only pitch bit 0 is set to “1”, and all others are “0”, so “do” is selected, and strength is 80, length is Since it is set to 80, the sound of “do” corresponding to this strength and length is output. Similarly, “Mi” is output in Step 2, “So” in Step 3, and “Shi” is output in Step 4, and in Step 5, pitch bit 0 and pitch bit 1 are both set to “1”. , “Do” and “mi” are selected, and since the length is 10, this compound tone is output for a very short time. In other words, “do, mi” compound sounds are output in a staccato.
[0013]
Next, since “Mi, Seo” is selected in Step 6, this compound sound is output, but since the strength is set to 0, no output is performed. That is, a rest state is established. In step 7, the compound sound of “So, Shi” is selected and the length is 100 (maximum value), so the chord of “So, Shi” is output in tenuto. In step 8, all of “do, mi, so, shi” are selected and the strength is set to 100 (maximum value), so the chord of “do, mi, so, shi” is accented. Will be output.
[0014]
Then, when the musical sound set as described above is described with musical notation symbols, it becomes as shown in FIG. 3, and this melody is sequentially repeated to output musical sound information. That is, if the data as shown in FIG. 2 is stored in the pattern memory 7, the performer can perform the simple operation of pressing the chord of “do, mi, so, shi” as shown in FIG. It is possible to output a musical sound that repeats the melody in sequence.
[0015]
The information shown in FIG. 2 is actually stored as a series of data in the pattern memory 7 as shown in FIG. In FIG. 4, “h” represents a hexadecimal number and “b” represents a binary number.
[0016]
In this way, according to the present embodiment, when outputting a distributed chord from a pressed chord input, not only a single sound but also a composite sound combining two or more single sounds and a pressed chord itself are output. Since it can be set as a pattern, the range of performance is remarkably widened, and a musical tone according to a player's preference can be easily set and output. Further, by arbitrarily setting the strength of pronunciation and the length of pronunciation, it is possible to set staccato, rest, tenuto, accent, etc., and a wider range of settings is possible.
[0017]
In the above embodiment, the chord input is composed of four sounds of “do, mi, so, shi”, but this is not limited to four sounds, and the pitch shown in FIG. Only the number of bits (8 in this case) can be set. In the example of FIG. 2, the number of steps is eight, but the present invention is not limited to this, and may be less than eight or more than eight, and may be arbitrarily set according to the player's preference. Can do.
[0018]
【The invention's effect】
As described above, in the distributed chord output device of the present invention, not only a single tone constituting a chord but also a complex tone combining two or more single notes can be set for a chord input that has been pressed. The output pattern setting range is widened, and an output pattern suitable for the player's preference can be easily set. In addition, the strength of pronunciation and the length of pronunciation can be set for each step, so information such as staccato, rest, tenuto, and accent can be set arbitrarily, and a wider output pattern Can be set.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a hardware configuration of a distributed chord output device according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing information stored in a matrix in a pattern memory.
FIG. 3 is an explanatory diagram showing a musical score obtained by the output pattern shown in FIG. 2;
FIG. 4 is an explanatory diagram showing a data format actually stored in a pattern memory.
FIG. 5 is an explanatory diagram showing an example of a conventional score of arpeggio output.
[Explanation of symbols]
1 Keyboard 2 Key Scanner 3 CPU
4 ROM
5 RAM
6 Timer 7 Pattern memory 8 Sound source

Claims (1)

In a distributed chord output device capable of dispersing and outputting the chord to the keyed chord input,
Each step allocated to time series, 1 bit of information assigned to each pitch bits which are arranged in correspondence with each pitch constituting the depressed chord, the step A pattern memory for storing a strength setting index indicating the strength of the output sound and a length setting index indicating the length of the output sound in the step,
The pitch corresponding to the pitch bits allocated to information of the bit stored in the pattern memory, the repeated step by step in the intensity setting index strength and length setting index length shown shown at the step Output a distributed chord output device.

Images