JPH04275593A - Musical information input device - Google Patents

Abstract

PURPOSE:To facilitate the input operation of musical information by automatically changing the contents of the musical information which can be inputted from operating elements according to the conditions of performance. CONSTITUTION:The musical information is changed over and inputted according to the number of key touches (steps 22 to 26) and the musical information is changed over and inputted according to the number of the played measures (steps 42, 44, 45) when an incrementer 31 is operated. The musical information is changed over and inputted according to during, before and after the loop performance (steps 56, 57, 58, 60) when a foot switch 37 is operated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical information input device, and more particularly to a musical information input device for inputting a plurality of types of musical information from one operating means.

0002

2. Description of the Related Art Conventionally, such musical information input devices include an operating knob called an incrementer. This means, for example, that musical parameters such as the tempo, volume, tone, and time signature of the song to be played automatically are displayed on the display, and by pressing the cursor key that moves the cursor displayed on this display, you can move the cursor displayed on this display to the musical parameter that you want to change. By moving the cursor and turning the incrementer, you can change the value of each musical parameter. This change, for example, for tempo,
You can change the number of diacritic beats between 40 and 300, change the volume of the overall sound, and change the tone of the sound to piano, violin, drums, etc. For time signature, 1/2, 2/2...
, 4/4, 3/4, 2/4...,...4/8, 5/8, 6/
8...etc. With such an incrementer, it is not necessary to provide an incrementer for each parameter, and by providing one incrementer, all musical parameters can be set.

0003

[Problem to be Solved by the Invention] However, with such an incrementer, it is necessary to operate the cursor keys to switch the musical parameters to be set, and it is difficult to set each musical parameter. It was time-consuming. In particular, musical parameters are often changed during a performance, and it is very difficult to change the musical parameters during such a performance because the keyboard is played with both hands. Further, even in automatic performance, the time available for changing musical parameters is limited, and it is still difficult to change musical parameters. In addition to setting musical parameters, this also applies to musical commands such as adding portamento effects and reverb effects.

The present invention has been made to solve the above-mentioned problems, and provides a musical information input device that can automatically switch musical information that can be input from an operating means even during a performance. is intended to provide.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention determines the performance situation and, depending on the result of this determination, differentiates the musical information input and processed from the operating means into different types. The system is designed to switch to musical information.

[0006]

[Operation] As a result, the types of musical information that can be input from the operating means can be automatically changed over as the performance situation changes. In this case, the performance status includes an operating state in the performance, a progress state of the performance, and the like. The operation status during performance includes the number of pressed keys, the speed or strength of key operations, the range of the operated keys, and the like. Further, the progress state of the performance includes the number of bars or beats played, whether or not the performance repeats a specific bar, and the duration of the performance.

[0007]

[Example] 1. External appearance of electronic musical instrument Diagram 5 shows the external appearance of the electronic musical instrument. A keyboard 1 is provided on the front side of the top surface of this electronic instrument, and a keyboard 1 is provided on the back side of the top surface.
A panel switch group 3 is formed. The panel switch group 3 includes an incrementer 31, a demo key 32, a mode key 33, a rhythm selection switch group 34, a tone selection switch group 35, and the like. Also, incrementer 3
An LED (light emitting diode) group 38 is also provided beside the LED. Further, a knee lever 36 and a foot switch 37 are electrically connected to this electronic musical instrument via a cable.

The incrementer 31, knee lever 36, and foot switch 37 are used to switch and input various types of musical information, which will be described later, depending on the performance situation. The incrementer 31 is used to input data corresponding to the amount of operation by turning a knob. A rotary switch and a variable resistor are connected to this incrementer 31.

[0009] An encoder is connected to the rotary switch, and operation amount data corresponding to the connection position of the rotary switch is output. Further, an A-D converter is connected to the variable resistor, and operation amount data corresponding to a changing voltage signal from the variable resistor is output. This operation amount data is, for example, data for 128 steps or 256 steps. This data may be processed as musical information as it is, or the lower bit data may be ignored and 64, 32,
You can create data for steps 16, 8, 4, and 2, or ignore some of these steps to create data for 25 steps.
It is also possible to use data for steps of 6, 255, . . . 2, 1.

The knee lever 36 is used to input data corresponding to the amount of operation by changing the angle of the lever. A slide switch, a variable resistor, etc. are connected to this knee lever 36. An encoder is connected to the slide switch, and operation amount data corresponding to the connected position of the slide switch is output. Also, the variable resistor has A
-D converter is connected, and manipulated variable data corresponding to the changing voltage signal from the variable resistor is output. Similar to the incrementer 31, this operation amount data is data for multiple steps, but in this embodiment, by neglecting the lower bit data, etc., it becomes "00""01""10".
The data is for 4 steps of "11". this house,
A step of "00" is data indicating that the incrementer 31 is not operated. The means for inputting these operation amount data may be other than the incrementer 31 and the knee lever 36.

The foot switch 37 is used to input ON data by pressing it with a foot or the like. This foot switch 37 includes a switch that closes one or more sets of contacts when pressed, and one ON data is output each time the foot switch 37 is pressed. The switch incorporated in this foot switch 37 may be a toggle switch so that ON information or OFF information can be input alternately. The means for inputting this on or off data may be other than this foot switch 37.

The demo key 32 is a key for starting and stopping a demo performance. Mode key 33
is a key for switching the input mode of the incrementer 31. When this mode key 33 is in the on state,
The musical information input by the incrementer 31 is
The incrementer 31 switches depending on the progress of the performance, and when the incrementer 31 is in the off state, the musical information input by the incrementer 31 changes depending on the operating state during the performance. The rhythm selection switch group 34 is a switch group for selecting the type of rhythm performance to be automatically performed, ie, rock, disco, waltz, etc. The tone color selection switch group 35 is a group of switches for selecting the type of tone of the musical tone to be produced, ie, piano, violin, drum, etc. The LED group 38 indicates the on/off state of each of the above-mentioned keys 32, 33 and switch groups 34, 35 by turning them on/off.

2. Types of input musical information FIG. 4 shows the incrementer 31, the knee lever 36, and the foot switch 3.
7 shows the content of musical information inputted from 7. Among these, the incrementer 31 is switched to the contents shown in FIG. 4(1)/FIG. 4(2) by turning on/off the mode key 33.

FIG. 4(1) shows the contents of musical information input by the incrementer 31 when the mode key 33 is in the on state. When automatic performance is not being performed, the operation amount data input by the incrementer 31 is taken in and processed as intro pattern information. During automatic performance, the first to eighth bars from the start of the performance are captured and processed as fill-in pattern information. During automatic performance, odd-numbered measures from the 9th measure to the 16th measure from the start of the performance are captured and processed as tempo value information. During automatic performance, even-numbered measures from the 9th measure to the 16th measure from the start of the performance are captured and processed as transpose value information. During automatic performance, the 17th to 24th bars from the start of the performance are captured and processed as ending pattern information.

[0015] By selecting this ending pattern, the ending performance is performed and the automatic performance is stopped. In this case, from the 24th measure onward, the measure number counter BAC (described later)
It is also possible to clear the fill-in pattern information and input the fill-in pattern information again. The above-mentioned intro is the performance of one to several phrases that are automatically played first at the start of the automatic performance, and the ending is the performance of one to several phrases that are automatically played at the end when the automatic performance ends. A plurality of patterns, for example 2 to 8, for each of the intro, ending, and fill-in performances are stored in the ROM 7, which will be described later, and the incrementer 31 selects one of these patterns. The tempo value indicates the tempo of automatic performance, and takes a value of 25 to 240, for example. The above transpose value indicates the transposition value, for example -11 to + in semitone units.
Take the value for 24 steps of 12.

[0016] If at least one key on the keyboard 1 is turned on, and the aftertouch data related to the latest key-on is large, for example, if it exceeds ``80н (н is a hexadecimal number)'', knee lever 3
The operation amount data input by 6 is taken in and processed as delay vibrato effect information. This delay vibrato effect causes a slight delay from the start of sound.
The frequency of the generated sound changes periodically. This delay vibrato effect information is
This information is captured and processed as information indicating one of two delay vibrato effect patterns that differ in delay time or vibrato size. When the knee lever 36 is not operated and no operation amount data is input, delay vibrato effect information is not output. This delay vibrato effect information may represent the length of the delay time of the delay vibrato effect, the number of times the vibrato effect is applied, the magnitude of the vibrato effect, etc. using three or more steps of data.

FIG. 4(2) shows the content of musical information input by the incrementer 31 when the mode key 33 is in the OFF state. If no key on the keyboard 1 is turned on, the operation amount data input by the incrementer 31 is taken in and processed as volume value information. If one key on the keyboard 1 is turned on, the operation amount data input by the incrementer 31 is taken in and processed as transpose value information. If two keys on the keyboard 1 are turned on, the operation amount data input by the incrementer 31 is taken in and processed as panning parameter information. If three keys on the keyboard 1 are turned on, the operation amount data input by the incrementer 31 is taken in and processed as filter parameter information. If four keys on the keyboard 1 are turned on, the operation amount data input by the incrementer 31 is taken in and processed as reverb parameter information.

The above-mentioned volume value indicates the overall volume of the generated musical sound. The above transpose value is, as mentioned above,
Shows the transposition value. The above panning parameters are
Shows the output ratio of musical tones of the left and right channels of a stereo system. This output ratio indicates the volume ratio of the left and right musical tones or the time difference between the sounding timings of both musical tones. The filter parameter indicates the magnitude of the cutoff frequency of the filter. This filter is usually a low-pass filter, but it may also be a high-pass filter or a band-pass filter. The reverb parameter indicates the length of reverberation of the generated musical sound.

FIG. 4(3) shows the content of musical information input from the knee lever 36. If no keys on keyboard 1 are turned on, the knee lever 36
The operation amount data inputted by is taken in and processed as sustain effect information. Due to this sustain effect, even if there is a key-off, the envelope waveform of the generated sound does not enter the release state, and the sustain state continues.
A musical tone with a lingering aftertaste is pronounced. This sustain effect information is taken in and processed as having a long sustain effect, a medium sustain effect, or a short sustain effect, depending on the magnitude of the manipulated variable data. When the knee lever 36 is not operated and no operation amount data is input, sustain effect information is not output. This sustain effect information may represent the duration of the sustain effect using data of four or more steps.

If at least one key on the keyboard 1 is turned on and the aftertouch data related to the latest key-on is small, for example, "1000 0000 (
80 н)'' or less, the operation amount data input by the knee lever 36 is taken in and processed as glide effect information. Due to this glide effect, the frequency of the generated musical sound increases or decreases as the pronunciation progresses. This glide effect information is taken in and processed as either one with a high frequency or one with a low frequency, depending on the magnitude of the operation amount data. When the knee lever 36 is not operated and no operation amount data is input, no glide effect information is output. This glide effect information may represent the magnitude of the frequency change of the glide effect using data of three or more steps.

FIG. 4(4) shows the contents of musical information inputted by the foot switch 37. When automatic performance is not being performed, ON information input by the foot switch 37 is taken in and processed as automatic performance start information. During automatic performance and before loop performance, the ON information input by the foot switch 37 is taken in and processed as fill-in start information for performing fill-in performance. If an automatic performance is in progress and a loop performance is in progress, the ON information input by the foot switch 37 is taken in and processed as loop performance end information for ending the loop performance. During automatic performance, if the loop performance has ended, the ON information input by the foot switch 37 is taken in and processed as automatic performance end information for ending the automatic performance. The above-mentioned loop performance refers to repeatedly playing one to several specific measures, and the above-mentioned fill-in performance refers to a performance in which the automatic performance is changed by one to several phrases. In addition to the automatic rhythm performance described above, automatic performance also includes automatic performance of chords, bass, backing, arpeggio, melody, etc.

3. Overall circuit diagram 6 shows the overall circuit of the electronic musical instrument. Each key of the keyboard 1 is scanned by a key scan circuit 2, and data indicating key-on and key-off is detected.
It is written into RAM6 by PU5. The data is then compared with data indicating the on/off state of each key that has been stored in the RAM 6, and the CPU 5 determines whether each key is on or off. Note that the keyboard 1 may be replaced by an electronic stringed instrument, an electronic wind (wind) instrument, an electronic percussion instrument (pad, etc.), a computer keyboard, or the like.

Each key 32 to 3 of the panel switch group 3
5 is scanned by the panel scan circuit 4. Through this scan, data indicating whether each key is on or off or data indicating the amount of operation is detected and written into the RAM 6 by the CPU 5. And until then, RAM6
The CPU 5 compares this with data indicating the on/off state of each key stored in the CPU 5 and determines whether each key is on or off.

Further, the operation amount data from the incrementer 31 and the knee lever 36 are also taken in by the CPU 5 and written into the RAM 6. And until then, RAM
6, and the operation event of the incrementer 31 and knee lever 36 is determined.
This is performed by the CPU 5. Furthermore, foot switch 3
7 is also scanned by the panel scan circuit 4 in the same manner as the keys 32 to 35 described above, and on/off data is detected and written into the RAM 6 by the CPU 5. Then, it is compared with the on/off data previously stored in the RAM 6, and the CPU 5 determines whether the on/off data is an on event or an off event. R.A.
The above-mentioned data and various processing data stored in M6 are sent to the LED group 38, and a display is performed according to the data contents. The RAM 6 also includes a working register group 41, a sequence information memory 42, etc., which will be described later.

The ROM 7 stores programs for the CPU 5 to perform various processes. The ROM 7 also stores sequence information such as rhythms and chords corresponding to the intro, fill-in, and ending patterns described above, and the pattern selected by the incrementer 31 is read out and automatically played.

The tempo timer 8 is composed of, for example, a programmable timer, and is set with data corresponding to the above-mentioned tempo value information.
An interrupt signal INT is sent to the CPU 5 at a cycle of 48 beats.
1, and processing of musical tone information according to the tempo is executed. The midi interface 9 is an interface for exchanging musical tone information with an externally connected electronic musical instrument. This musical tone information is based on the MIDI (Musical Instrument Digital Interface) standard, and pronunciation or automatic performance is also performed based on this musical tone information. When musical tone information is sent to this midi interface 9 and temporarily stored, an interrupt signal I is sent to the CPU 5.
NT2 is given, and the received musical tone information is taken in and musical tone information is transmitted and received.

In the musical sound generation circuit 10, the keyboard 1
Musical sound data is generated according to musical sound information such as key number, touch, timbre, rhythm, etc. inputted from the panel switch group 3. In this musical tone generation circuit 10, musical tone generation systems for a plurality of channels, for example, 16 channels, are formed by time-sharing processing, and musical tones can be generated polyphonically. The musical tone information assigned to each channel is stored in an assignment memory (not shown).

Transpose data trn corresponding to the transpose value information inputted by the incrementer 31 is added or subtracted to the key number data in the musical tone information set in the assignment memory, and the key number is transposed. Processing is performed and output. Knee lever 3 above
During the time data corresponding to the sustain effect information (sustain data sus) input in step 6, the on/off data indicating key-on/key-off in all musical note information in the assignment memory is switched to the off state by key-off. is prohibited. Also knee lever 36
According to the glide effect information (glide data gld) input by It is added or subtracted at predetermined intervals and output. Furthermore, in accordance with the delay vibrato effect information (delay vibrato data dvb) similarly input by the knee lever 36, the key number data of all musical tone information stored in the assignment memory or the frequency number data corresponding to this key number data is Then, data that changes at a predetermined period is added or subtracted after a certain delay time and is output.

The musical tone data generated by this musical tone generating circuit 10 is accumulated in a time-division manner for each part, which will be described later.
The digital filter circuit 11 changes the frequency component in a time-division manner for each part (described later), and the effect circuit 1
Sent to 2. In this digital filter circuit 11, the filter parameter flt inputted by the incrementer 31 is set in a ring shift register or the like,
The magnitude of the cutoff frequency is determined. In the effect circuit 12, a reverb effect is added to the musical tone data in a time-division manner for each part, which will be described later, and the musical tone data of all parts are accumulated and output, and sent to the panning circuit 13. This effect circuit 12 uses a digital delay circuit, a digital reverb circuit, a digital chorus circuit, etc., and the reverb parameter rvb inputted by the incrementer 31 is set in a ring shift register or the like, and the magnitude of the reverb is determined. Ru.

The digital filter circuit 11 and the effect circuit 12 time-divisionally process the musical tone data of each part, and the ring shift register stores the filter parameters fl of each part in synchronization with this time-division process.
t and the reverberation parameter rvb are set, and in synchronization with this time division processing, the filter parameter flt and the reverberation parameter rvb of each part are ring-shifted.

In the panning circuit 13, musical tone data of the right sound source and musical tone data of the left sound source are respectively generated for the input musical sound data, and stereo control is performed.
The signal is sent to the A converter 14. The musical sound data of the right sound source and the musical sound data of the left sound source are created by adding differences in volume level and sound generation start timing to the input musical sound data as is and the musical sound data input to the left. Musical sound data of a sound source and a set of right sound sources are generated,
A pseudo stereo sound is realized. This volume level control is performed by a panning parameter p input by the incrementer 31 and set in a register or the like.
This is performed by performing an operation such as multiplying one of the left and right musical tone data by an. Furthermore, the timing of the start of sound generation is controlled by using a digital delay circuit to apply a delay to one of the left and right musical tone data according to the panning parameter PAN. Such volume control or sound generation timing control is performed by selecting either the musical tone data of the right tone source or the musical tone data of the left tone source based on the most significant bit data R/L of the panning parameter pan.

Note that the musical tone data input to the panning circuit 13 may be input in a time-division manner for each part. In this case, similarly to the digital filter circuit 11 and effect circuit 12, the panning parameter PAN and the most significant bit data R/L of each part are set in a ring shift register or the like, and a ring shift is performed. This time-sharing processing speed is twice the time-sharing processing speed in the digital filter circuit 11 and effect circuit 12, and within the shared time of one part,
A process of generating musical sound data for a set of left sound source and right sound source is performed.

In the D-A converter 14, each musical tone data of the right tone source or musical tone data of the left tone source is converted into an analog signal, which is sampled and held and sent to the sound system 15 for sound generation. This D-A
The converted analog signal in the converter 14 is distributed and output to an output line for the right sound source and an output line for the left sound source, respectively. This distribution is performed by using two analog switches, for example, and switching the two switches alternately at the time-sharing processing timing of the left and right channels of the panning circuit 13.

The sound system 15 has a built-in volume control circuit such as a VCA (voltage controlled amplifier), and volume data vlm corresponding to the volume value information input by the incrementer 31 is stored in a register or the like. is set, and the overall volume of musical tones is controlled. Instead of this VCA, a multiplier and a register are used in the digital filter circuit 11.
and the effect circuit 12, volume data vlm may be set in this register, and a multiplier multiplies the musical tone data by the volume data vlm.

4. Sequence information memory 42 Figure 7 shows RA
The sequence information memory 42 in M6 is shown. This sequence information memory 42 stores sequence information of a plurality of songs, and each sequence information is sequence information of a melody part, but may also be sequence information of parts such as chord, bass, backing, arpeggio, rhythm, etc. This sequence information consists of a note data group consisting of key number (pitch) data, gate time data, aftertouch data, part data, and step time data, as well as bar mark data and tone number data inserted between this note data group. , stop command, step time data, etc.

The key number data consists of octave data and pitch name data, and indicates pitch. Gate time data is data indicating the time from the start of sound generation to the end of sound generation. When a clock counter CKC, which will be described later, is incremented, the gate time data is decremented, and when it reaches "0", it is muted. Aftertouch data is data indicating the strength of key-on or key-off. This data may be data indicating key-on or key-off speed. Part data is data indicating performance parts such as melody, chord, rhythm, bass, backing, arpeggio, drum, hat, piano, violin, flute, etc. This part data may include series data indicating the right sound source and left sound source of the stereo sound.

The step time data is data indicating the time from the beginning of a song or the beginning of a measure, ie, bar mark data, to the start of sound generation or command execution according to chord data. When the value of the clock counter CKC (described later) matches this step time data,
Musical sounds or commands are executed according to the key number data and tone number data. The bar mark data is data indicating the break between each bar and the number of bars from the beginning of the song. Tone number number data is data indicating a tone color. The stop command is a command for ending automatic performance.

Furthermore, index data is stored at the beginning of the sequence information, and this index data consists of loop top measure data, loop end measure data, time signature data, tempo data, transpose data, and the like. The loop top measure data and the loop end measure data indicate the first measure number and the last measure number of a loop performance section in which repeated performances are performed in the sequence information. The time signature data and tempo data are data indicating the time signature, tempo, and transposition level of automatic performance based on this sequence information.

[0039] In the chord performance sequence information,
Chord data and step time data are stored instead of the note data. The code data is data indicating the chord time and chord root, and this code data is converted into key number data of each constituent note using a decoder, and is set in the assignment memory.

5. Working register group 41 Figure 8 shows RA
A working register group 41 in M6 is shown.

The working register group 41 includes a rhythm start register RS, a loop mode register LP,
Loop top measure register LT, loop end measure register LE, tempo register TMP, beat counter BT
C, measure counter BAC, key press counter KOC, aftertouch register AFT, incrementer register I
NC, knee lever register KNL, foot switch register FTS, incrementer assign register ASNI
, knee lever assign register ASNK, foot switch assign register ASNF, intro flag register INF, ending flag register ENF, fill in flag register FIF, intro pattern register I
NP, fill-in pattern register FIP, ending pattern register ENP, sustain register SUS
, glide register GLD, delay vibrato register DVVB, volume value register VLM, transpose value register TRN, panning parameter register PAN
, a filter parameter register FLT, a reverb parameter register RVB, and a mode register MOD.

Rhythm start data rs indicating whether automatic rhythm performance is being played ("1") or not ("0") is set in the rhythm start register RS. The loop mode register LP indicates whether automatic performance based on sequence information is before loop performance (“0”),
Is the loop playing ("1") or after the loop playing ("2")?
Loop mode data lp indicating this is set. The loop top measure register LT and the loop end measure register LE are set with loop top measure data lt indicating the measure number of the cylinder in this loop performance section and loop end measure data le indicating the last measure number. Tempo data tmp indicating the tempo value of automatic performance is set in the tempo register TMP. This tempo data t
mp is inputted from the panel switch group 3, tempo data in index data of sequence information is used, or inputted by the incrementer 31.

The beat counter BTC receives an interrupt signal I from the tempo timer 8 at a cycle of every 1/48 beat.
When NT1 is given to the CPU 5, it is incremented by 1, and when the counter is counted to a value 48 times the number of beats for one measure, it overflows, and the bar counter BAC is thereby incremented by 1. The number of beats mentioned above differs depending on the time signature of the performance song. The measure counter BAC counts the number of measures played,
Performance bar number data bac is stored.

[0044] The number of pressed keys counter KOC includes keyboard 1.
Key press number data k indicating the number of keys that are pressed in the same way
oc is set. This key press number data koc is the total number of "1"s in the scan result data for all keys of the key scan circuit 2. Aftertouch data aft indicating the strength of key-on or key-off of each key of the keyboard 1 is set in the aftertouch register AFT. This aftertouch data aft is detected from a piezoelectric element or the like provided corresponding to each key, or the aftertouch data in the sequence information is diverted. This aftertouch data aft may be replaced with data indicating the key-on or key-off speed.

The manipulated variable data input by the incrementer 31 is set in the incrementer register INC. Operation amount data input by the knee lever 36 is set in the knee lever register KNL. On/off data indicating whether the foot switch 37 is on (“1”) or off (“0”) is set in the foot switch register FTS. The incrementer assignment register ASNI is set with data indicating the content of musical information input by the incrementer 31, as shown in FIGS. 4(1) and 4(2). The knee lever assignment register ASNK contains the knee lever 3 shown in Fig. 4 (3).
Data indicating the contents of 6 is set. Data indicating the contents of the foot switch 37 shown in FIG. 4(4) is set in the foot switch assignment register ASNF.

The intro flag register INF contains information indicating whether to perform the above-mentioned intro performance ("1") or not ("0").
") is set. The ending flag register ENF indicates whether to perform the above-mentioned ending performance ("1") or not ("0").
Flag data enf indicating this is set. Flag data fif indicating whether the above-described fill-in performance is to be performed ("1") or not ("0") is set in the fill-in flag register FIF.

Intro pattern data inp indicating the above-mentioned intro performance pattern is set in the intro pattern register INP. Fill-in pattern data fip indicating the above-described fill-in performance pattern is set in the fill-in pattern register FIP. Ending pattern data enp indicating the pattern of the above-mentioned ending performance is set in the ending pattern register ENP. Sustain data sus indicating the duration of the sustain effect inputted by the above-mentioned knee lever 36 is set in the sustain register SUS. Glide data gld indicating the direction of change of the glide effect inputted by the above-mentioned knee lever 36 is set in the glide register GLD. In the delay vibrato register DVB, delay vibrato data dvb indicating the number of times the delay vibrato effect is applied is inputted by the knee lever 36 described above.

Volume data vlm input by the incrementer 31 is set in the volume value register VLM. Transpose data trn input by the incrementer 31 is set in the transpose value register TRN. The panning parameter pam input by the incrementer 31 is set in the panning parameter register PAN. The filter parameter register FLT contains the filter parameter fl input by the incrementer 31.
t is set. Reverb parameter register RVB
The reverberation parameter rvb input by the incrementer 31 is set in .

Mode data mod indicating the input mode of the incrementer 31 and indicating on/off of the mode key 33 is set in the mode register MOD. The above registers INP, FIP, ENP, SUS, GLD, D
For each data set in VB, VLM, TRN, PAN, FLT, and RVB, the same data may be stored in the index of the sequence information, and this stored data may be reused. Also, this register SUS, GLD, D
Each data in VB, VLM, TRN, PAN, FLT, and RVB is stored in the assignment memory, musical tone generation circuit 10,
It is sent to the digital filter circuit 11, effect circuit 12, panning circuit 13, sound system 15, etc.
The processing described above is performed. In addition, registers INP and FIP
, each pattern data in ENP is sent to ROM7,
Each performance pattern data in the ROM 7 is read out.

6. Main Routine FIG. 9 shows a flowchart of the main routine. This process starts when the power is turned on. In this process, the CPU 5 first performs initialization processing such as clearing the working register group 41 (step 01), and if there is an operation event of the incrementer 31 (step 0
2) Perform incrementer input processing (step 03)
, if there is an operation event of the knee lever 36 (step 0
4), performs knee lever input processing (step 05), and if there is an on event of the foot switch 37 (step 0
6) Perform foot switch input processing (step 07)
.

Then, rhythm selection processing is performed in accordance with the operation of the rhythm selection switch group 34 in the panel switch group 3 (step 08), and tone selection processing is performed in accordance with the operation of the timbre selection switch group 35 (step 09). ), performs key processing according to key operations on keyboard 1 (step 1
0). Furthermore, through the midi interface 9, midi out processing is performed to output musical tone information according to the above key operations (step 11), and the midi interface 9
Midi-in processing is performed to process the musical tone data inputted through (step 12), and automatic performance processing is performed based on sequence information (step 13). Finally, modulation processing such as glide effect and delay vibrato effect is performed (step 14), panning processing is performed (step 15),
Reverb processing is performed (step 16), other processing is performed (step 17), and the process returns to step 02 above.

In the rhythm selection process of step 08, the intro pattern data inp of the intro pattern register INP, the fill-in pattern register FI
Rhythm selection processing is also performed in accordance with fill-in pattern data fip of P or ending pattern data enp of ending pattern register ENP. In the tone color selection process in step 09 above, the volume value register VLM
volume data vlm, filter parameter register FL
Tone color selection processing is also performed in accordance with the filter parameter flt of T or sustain data sus of sustain register SUS. In the key processing in step 10 above, a correction operation is performed on the key number data set in the assignment memory or the frequency number data corresponding to this key number data, according to the transpose data trn of the transpose value register TRN. , transposition, that is, pitch change processing is performed.

In the automatic performance process of step 13, as described later, the rhythm start data rs of the rhythm start register RS, the loop mode data lp of the loop mode register LP, the tempo data tmp of the tempo register TMP, and the intro of the intro pattern register INP are Pattern data inp, fill-in pattern register FI
Automatic performance processing is performed according to fill-in pattern data fip of P or ending pattern data enp of ending pattern register ENP. In the modulation process of step 14, constant value data is set for the key number data stored in the assignment memory or the frequency number data corresponding to this key number data according to the glide data gld of the glide register GLD. A correction operation is performed every cycle, a glide effect is added, and a delay vibrato register DV
According to the delay vibrato data dvb of B, data that changes at a predetermined period is corrected after a certain delay time for the key number data stored in the assignment memory or the frequency number data corresponding to this key number data. A calculation is performed and a delay vibrato effect is applied.

In the panning process in step 15 above,
The panning parameter pam of the panning parameter register PAN is sent to the panning circuit 13, and stereo control is performed according to this panning parameter pam. In the reverberation process in step 16, the reverberation parameter rvb of the reverberation parameter register RVB is sent to the effect circuit 12, and the application of the reverberation effect is controlled in accordance with this reverberation parameter rvb.

7. Incrementor Input Processing FIG. 1 shows a flowchart of the incrementer input processing in step 03 above. In this process, if the mode data mod is "0", the CPU 5 performs the input process of musical information according to the key depression number data koc in steps 21 to 26, and if the mode data mod is "1", the CPU 5 performs the step 31-37
Processing is performed to input musical information according to the number of bars played (bac) (step 20).

[0056] If the mode data mod is "0", C
PU5 is the key press number data koc in the key press number register KOC.
The value of is checked (step 21). If the key depression number data koc is "0", the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the volume value register VLM (step 22). As a result, the operation amount data input by the incrementer 31 is taken in as musical volume information.

If the key press number data koc is "1", the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the transpose value register TRN (step 23). This results in
The operation amount data input by the incrementer 31 is taken in as musical information for transposition. Key press number data k
If oc is "2", incrementer register INC
Transfers the operation amount data input by the incrementer 31 in the panning parameter register PAN (
Step 24). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information for panning control.

If the key press number data koc is "3", the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the filter parameter register FLT (step 25). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information for filter control. If the key press number data koc is "4" or more, the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the reverb parameter register RVB.
(step 26). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information for reverb control.

If the mode data mod is "1", the rhythm start data rs in the rhythm start register RS is checked (step 31). If the rhythm start data rs is "0" and automatic rhythm performance is not being performed, the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the intro pattern register INP (step 32). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information of the intro performance pattern.

[0060] Also, the rhythm start data rs is "1".
If automatic rhythm performance is being performed, the CPU 5 checks the value of the played bar number data bac in the bar counter BAC (step 33). The number of measures played is “1” to “8”
”, the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the fill-in pattern register FIP (step 34
). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information of the fill-in performance pattern.

If the performance measure number data is an odd value between "9" and "16", the operation amount data inputted by the incrementer 31 in the incrementer register INC is transferred to the tempo register TMP (step 35). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information of the tempo pattern. If the performance bar number data is an even value between "9" and "16", the operation amount data input by the incrementer 31 in the incrementer register INC is transferred to the transpose value register TRN (step 36). Thereby, the operation amount data input by the incrementer 31 is taken in as musical information of the transposition pattern. If the performance measure number data is “17” to “24”,
Incrementer 31 in incrementer register INC
The input operation amount data is transferred to the ending pattern register ENP (step 37). As a result, the operation amount data input by the incrementer 31 is taken in as musical information of the ending performance pattern, and as shown in FIGS. 4(1) and (2),
The musical information inputted by the incrementer 31 can be switched depending on the progress of the performance or the number of keys pressed during the performance. In addition, when transferring the above-mentioned manipulated variable data, various operations such as adding/subtracting a predetermined value to the manipulated variable data, multiplying/dividing it, neglecting lower-order data, etc. are performed to ensure consistency in data diversion. Be taken. For example, steps 22-24, 26, 35, 3
In step 6, a bias value is added or subtracted from the manipulated variable data, and in steps 23, 25, 32, 34, and 37, only the upper bit data of the manipulated variable data is diverted.

8. Knee lever input processing FIG. 2 shows a flowchart of the knee lever input processing in step 05 above. In this process, if the key press number data koc in the key press number register KOC is "0" (step 41), the CPU 5 transfers the operation amount data input by the knee lever 36 in the knee lever register KNL to the sustain register SUS. Transfer (step 42). Thereby, the operation amount data inputted by the knee lever 36 is taken in as musical information of the sustain effect.

Further, if the key depression number data is "1" or more (step 41), the CPU 5 determines whether or not the aftertouch data aft in the aftertouch register AFT is greater than "80н" (step 43). . “80н
'', the operation amount data input by the knee lever 36 in the knee lever register KNL is transferred to the glide register GLD (step 44). Thereby, the operation amount data input by the knee lever 36 is taken in as musical information of the glide effect. Further, if the aftertouch data aft is larger than "80н", the operation amount data inputted by the knee lever 36 in the knee lever register KNL is transferred to the delay vibrato register DVB (step 45). Thereby, the operation amount data inputted by the knee lever 36 is taken in as musical information of the delay vibrato effect.

In this way, as shown in FIG. 4(3), the musical information inputted by the knee lever 36 can be switched in accordance with the number of keys pressed during performance and the key pressure. In addition, when transferring the above-mentioned manipulated variable data, various operations such as adding/subtracting a predetermined value to the manipulated variable data, multiplying/dividing it, neglecting lower-order data, etc. are performed to ensure consistency in data diversion. Be taken.

9. Foot Switch Input Processing FIG. 3 shows a flowchart of the foot switch input processing in step 07 above. In this process, the CPU 5 checks the rhythm start data rs in the rhythm start register RS (step 51). Rhythm start data rs is “0”
If automatic rhythm performance is not being performed, this rhythm start data rs is set to "1" (step 52). As a result, the on/off data input by the foot switch 37 is taken in as automatic rhythm performance start information, and automatic rhythm performance can be started. Next, the key press number data koc in the key press number register KOC becomes “0”.
”, and if even one key is not pressed (step 5
3), flag data i of intro flag register INF
nf is set to "1" (step 54). As a result, when starting the automatic rhythm performance, if no key is pressed, the intro performance will be automatically started.

[0066] Also, the rhythm start data rs is "1".
If automatic rhythm performance is being performed, the loop mode data lp in the loop mode register LP is checked (step 55). If the loop mode data lp is "0" and the automatic rhythm performance has not entered the loop performance, the flag data fin in the fill-in register FIN is set to "1" (step 56). As a result, the on/off data input by the foot switch 37 is taken in as fill-in performance request information, and fill-in performance can be started. The fill-in performance pattern in this case is determined based on the fill-in pattern data fip set in step 34 and the like.

In step 55, if the loop mode data lp is "1" and the automatic rhythm performance is in progress, the loop mode data lp is set to "2", which indicates the loop performance has ended (step 57). As a result, the on/off data inputted by the foot switch 37 is taken in as loop performance escape information, and the loop performance of the automatic rhythm performance can be completed.

In step 55, if the loop mode data lp is "2" and the automatic rhythm performance is after the loop performance, the rhythm start data rs is cleared (step 58). As a result, the on/off data inputted by the foot switch 37 is taken in as automatic rhythm performance end information, and the automatic rhythm performance can be ended. Next, the key press number data koc in the key press number register KOC is “
0'' and no key is pressed (step 5).
9) Set the flag data enf of the ending flag register ENF to "1" (step 60). As a result, the ending performance is automatically performed if no key is pressed at the end of the automatic rhythm performance. In this way, as shown in FIG. 4(4), the musical information inputted by the foot switch 37 can be switched according to the progress of the performance.

10. Tempo Interrupt Processing FIG. 10 shows a flowchart of tempo interrupt processing. This process is executed when the interrupt signal INT1 is applied from the tempo timer 8 to the CPU 5. In this process, if the rhythm start data rs of the rhythm start register RS is "1" and the automatic rhythm performance is in progress (step 71), the CPU 5 sets the beat counter BTC to
1 (step 72). If the value of the beat counter BTC exceeds the value 48 times the number of beats for one measure and overflows (step 73), the measure counter BAC is increased.
1 (step 74).

11. Automatic performance processing FIG. 11 shows a flowchart of the automatic performance processing in step 13 above. In this process, processes such as start/stop of automatic performance processing, selection of intro/fill-in/ending patterns, control of loop performance, and tempo setting are performed based on sequence information such as rhythm, chord, melody, etc. First, the CPU 5 performs tempo processing (
Step 100). This tempo process is a process of setting the tempo data tmp of the tempo register TMP in the tempo timer 8, and thereby the interrupt process according to the set tempo shown in FIG. 10 is performed.

Then, the rhythm start data rs of the rhythm start register RS is "1" and automatic rhythm performance is being performed (step 101), and this rhythm start data rs has just become "1" (step 102).
), and if the flag data inf of the intro flag register INF is "1" (step 103), the ROM
7 is read out (step 104), and flag data inf is cleared (step 105).

If NO in steps 102 and 103, and the automatic performance is not starting, it is determined whether the loop mode data lp of the loop mode register LP is "2", that is, whether the loop performance has already been performed ( Step 1
06). If it is not "2" and the loop performance has not ended, the performance bar number data bac of the bar counter BAC is
Determine whether the loop end data le in the loop end measure register LE has been exceeded (step 107)
. If it exceeds the loop end data le, when the loop mode data lp is "0" (step 108),
This is set to "1" (step 109), and the bar counter B
The loop top data lt in the loop top measure register LT is set to AC (step 110), and the beat counter BTC is cleared (step 111). As a result, the performance measure of the sequence information jumps from the loop end measure to the loop top measure.

[0073] Then, the fill-in flag register FNF
If the flag data fnf of is “1” (step 11
2) Read the fill-in performance sequence information in the ROM 7 (step 113), and clear the flag data fnf (step 114). In step 112 above,
If O, the values of the bar counter BAC and beat counter BTC are compared with time data such as step time data in the sequence information, the corresponding information is read out, the information is written to the assignment memory, etc.
Step 115).

If the answer in step 101 is NO and the rhythm start data rs is "0", this rhythm start data rs has just become "0" (step 1
16), and if the flag data enf of the ending flag register ENF is "1" (step 117)
, reads the sequence information of the ending performance in the ROM 7 (step 118), and clears the flag data enf (step 119). NO in step 117 above
If the flag data enf is "0", performance end processing is performed (step 120).

[0075] Step 102 or Step 116 above
To determine whether the rhythm start data rs has just become “1” or whether it has just become “0”, use RAM6.
Depending on the presence or absence of an event when the on/off data of the foot switch 37 stored in the memory changes from "0" to "1" or from "1" to "0", the rhythm start or rhythm A stop trigger flag may be provided. Steps 104, 113, 118 above
The process of reading the sequence information of each pattern is the same as the sequence information read process of step 115, but the read memory area becomes the storage area of each pattern in the ROM 7. Then, once reading of each pattern starts, reading of each pattern is automatically continued until reading of the last information.

The loop performance processing in steps 107 to 111 is completed by performing the loop escape processing in step 57 by operating the foot switch 37 described above. Note that the loop command and loop top measure data l are placed at the end of the loop end measure in the sequence information.
t and the loop number data, and each time a loop command is read out, this loop top measure data lt is set in the measure counter BAC, and the number of times the loop command is read out is counted. If it matches the loop count data, the loop escape process described above may be performed.

12. MIDI Interrupt Processing FIG. 12 shows a flowchart of MIDI interrupt processing. This process is performed from the midi interface 9 to the CPU 5.
It is executed when the interrupt signal INT2 is applied to the interrupt signal INT2. In this process, when musical tone data is received from an externally connected device through the midi interface 9 (step 91), the CPU 5 stores this received data in the midi-in buffer register in the RAM 6, and stores the received data in the midi-in buffer register in the RAM 6. The corresponding pronunciation processing and the like are performed (step 92). Furthermore, when transmitting musical tone data to an externally connected device (step 93), the musical tone data in the midi out buffer register in the RAM 6 is sent to the midi interface 9 (
Step 94).

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the musical information input by the incrementer 31, knee lever 36, and foot switch 37 is switched based on the number of keys pressed, aftertouch data, number of bars played, during, before and after loop performance, as well as on-key Alternatively, the switching may be performed according to the off-key range, selected tone, selected rhythm, number of loop performances, performance time, etc. In this case, steps 21, 33, 41, 43,
55, the value of the octave data of the key number data of the on-key or off-key is determined, the on-key of the tone selection switch group 35 is determined, the on-key of the rhythm selection switch group 34 is determined, the value of the loop performance number data is determined, and the playing time is determined. All you have to do is judge the data. The loop performance number data is counted by adding 1 to the loop performance number data after step 58 described above. Further, the loop performance number data can also be counted in the process described at the end of the above-mentioned automatic performance process. The count of playing time data is
After step 54, this performance time data is cleared, and the interrupt signal INT1 is output from the tempo timer 8 to CP.
This performance time data is incremented by 1 every time it is given to U5.

[0079] Also, steps 22 to 26, 32, 3
The musical information inputted by the incrementer 31, knee lever 36, foot switch 37, etc. in 4 to 37, 42, 44, 45, 57, 60, 63 includes rhythm selection information, tone selection information, etc. in addition to the above-mentioned information. information, modulation waveform selection information, time signature selection information, scale type selection information, performance part selection information for masking or unmasking, size of various effects such as tremolo, portamento, growl, mandolin, phaser, celeste, etc. Any musical information such as selection information may be used.

Furthermore, the operating means for inputting musical information is not limited to the above-mentioned incrementer 31, knee lever 36, and foot switch 37, but may be of any form, such as using keys on the keyboard 1, etc. .

[0081]

Effects of the Invention As described in detail above, the present invention determines the performance situation and converts the musical information inputted and processed from the operating means into a different type of musical information according to the result of this determination. I tried to switch it. Thereby, as the performance situation changes, the types of musical information that can be input from the operating means can be automatically changed over. As a result, even during a performance, the musical information inputted from the operating means can be automatically switched, making it easier to input musical information.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a flowchart of incrementer input processing (step 03).

FIG. 2 is a diagram showing a flowchart of knee lever input processing (step 05).

FIG. 3 is a diagram showing a flowchart of foot switch input processing (step 07).

FIG. 4 is a diagram showing the contents of musical information input by an incrementer 31, a knee lever 36, and a foot switch 37.

FIG. 5 is an overall external view of the electronic musical instrument.

FIG. 6 is an overall circuit diagram of the electronic musical instrument.

FIG. 7 is a diagram showing a sequence information memory 42 in the RAM 6. FIG.

FIG. 8 is a diagram showing a working register group 41 in the RAM 6. FIG.

FIG. 9 is a diagram showing a flowchart of the main routine.

FIG. 10 is a diagram showing a flowchart of tempo interrupt processing.

FIG. 11 is a diagram showing a flowchart of automatic performance processing (step 13).

FIG. 12 is a diagram showing a flowchart of midi interrupt processing.

[Explanation of symbols]

1...keyboard, 3...panel switch group, 5...CPU,
6... RAM, 7... ROM, 8... Tempo timer, 10... Musical tone generation circuit, 11... Digital filter circuit, 12... Effect circuit, 13... Panning circuit, 31... Incrementer, 32... Demo key, 33... Mode key, 34 ...Rhythm selection switch group, 35...Tone selection switch group, 36...
Knee lever, 37...foot switch, 41...working register group, 42...sequence information memory.

Claims (5)

[Claims] Claims 1: An operating means for inputting information through operation, an importing means for importing the information inputted by the operating means as musical information, and processing according to the musical information imported by the importing means. a processing means for determining the performance status; a discriminating means for discriminating the performance status; and a switching means for switching the musical information captured by the capturing means to another type of musical information in accordance with the discrimination result of the discriminating means. A musical information input device characterized by: 2. The musical information input device according to claim 1, wherein said determining means is means for determining an operating state in a performance. 3. The musical information input device according to claim 1, wherein said determining means is means for determining the progress state of a performance. 4. The musical information input device according to claim 1, wherein said operating means is means for inputting on or off information. 5. The musical information input device according to claim 1, wherein the operating means is means for inputting information on the amount of operation.