JP3548810B2 - Music data recording device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a music data recording device that records music data composed of pitch data and pitch data.
[0002]
[Prior art]
As conventional music data recording devices, those using a real-time input method and those using a step input method are known. In a music data recording apparatus of a real-time input system, when a performance operation is performed on a keyboard, pitch data and duration data generated each time a key is pressed are sequentially recorded as the performance progresses. Therefore, by reading out the pitch data and the pitch data which are sequentially recorded and executing the automatic performance, the music composed of the recorded music data can be reproduced.
[0003]
In the music data recording apparatus of the step input method, a keyboard is provided, and a plurality of dedicated operators for designating a sound length are separately provided. Then, in a state where the pitch is specified by operating the keyboard, one of the dedicated operators is further operated to specify the pitch. As a result, music data consisting of the designated pitch and pitch is sequentially stored, and by reading out the music data and executing the automatic performance, the music can be reproduced in the same manner.
[0004]
[Problems to be solved by the invention]
As described above, in the music data recording apparatus of the real-time system, when a performance operation is performed according to the musical example shown in FIG. 11, data generated by the performance operation is recorded as music data as it is. Therefore, in order to automatically reproduce a music piece based on music piece data, a performance technique capable of accurately playing the music piece is required, so that the music piece data recording device cannot be easily used.
[0005]
On the other hand, in the case of the step input type music data recording device, since the pitch data is input by a key operation and then the pitch data is input by a separate operation, the musical score shown in FIG. Is possible, music data can be recorded regardless of the performance technique. However, in the case of the step input method, pitch data is input by operating the operation element corresponding to the pitch specified on the keyboard. Can be recorded simultaneously, but note data having different pitches and pitches cannot be recorded simultaneously. That is, when recording the notes of the pitches C3 and G3 shown at the beginning of the lower part of FIG. 11, if both of these notes are quarter notes, the user depresses C3 and G3 on the keyboard. The note data of both notes can be recorded by operating the note length designation operator of the quarter note length. However, in the illustrated staff example, since C3 is a quarter note and G3 is an eighth note, even if the pitch can be specified simultaneously by pressing C3 and G3 on the keyboard, each note is not played. Different pitches cannot be specified at the same time in accordance with the pitch, and it is impossible to simultaneously record note data having different pitches and pitches as described above.
[0006]
The present invention has been made in view of such a conventional problem, and is a step recording method that does not require a playing technique, but simultaneously performs note data having different pitches and pitches in the same manner as the real-time recording method. It is an object of the present invention to provide a music data recording device capable of recording.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, according to the present invention, a plurality of operators that generate different pitch data in response to an operation, a pitch data generation unit that generates a pitch data, and an operable operation Means, storage means for sequentially storing pitch data generated by operation of the operation element, and pitch data generated from the pitch data generation means, in a state where the operation element is continuously operated Storage control means for adding the duration data generated by the duration data generation means to the corresponding duration data stored in the storage means and storing the duration data when the operation means is operated. are doing.
[0008]
[Action]
In the above configuration, when an operation is performed on the operation element, pitch data is generated, and the pitch data and the pitch data generated by the pitch data generating unit are sequentially stored in the storage unit. At this time, when the operating means is operated in a state where the operating element is continuously operated, the storage control means stores the sound length data generated by the sound length data generating means in the corresponding sound length data stored in the storing means. Add and store.
[0009]
That is, for example, if two operators are simultaneously operated to generate pitch data of C3 and pitch data of G3 at the same time, and the eighth note length data is generated from the pitch data generation means, the storage means Stores pitch data C3 and eighth note length data, and pitch data G3 and eighth note length data, respectively. Further, only the operation of the operator that has generated the pitch data G3 is stopped, and the operation unit is operated while the operation of the operator that has generated the pitch data C3 is continued. Then, the storage control means adds the eighth note length data to the eighth note length data stored corresponding to the pitch data C3 and stores the data. Accordingly, the pitch data C3 and quarter note length data and the pitch data G3 and eighth note length data are stored in the storage means by the above operation.
[0010]
【Example】
An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to an electronic musical instrument having an automatic performance function. As shown in FIG. 1, the electronic musical instrument 1 is provided with a keyboard 2. In this embodiment, 61 keys are arranged on the keyboard 2, and each key is provided with a keyboard switch that is turned on when the key is pressed. The electronic musical instrument 1 is provided with a start / stop switch 3, a recording switch 4, a reproduction switch 5, and a tone length selector 8. Near the recording switch 4 and the reproduction switch 5, a first LED 6 and a Two LEDs 7 are arranged. The tone length selector 8 includes push-in switches 8a to 8e. Each of the switches 8a to 8e includes a 16th note and a 16th rest from the note length corresponding to a half note and a half rest. , Five types of note lengths are assigned. Furthermore, a foot pedal 9 is connected to the electronic musical instrument 1, and the foot pedal 9 is always off, and is configured to output an on signal by a depressing operation.
[0011]
FIG. 2 is a block diagram showing a circuit configuration of the electronic musical instrument 1. On / off information of the switches 3 to 5 described above is input from the operation panel 15 to the CPU 10 in this block diagram. Further, on / off information from the keyboard 2 and the foot pedal 9 is input to the CPU 10. The CPU 10 operates in accordance with the input information and the program stored in the ROM 11, stores music data and the like in the RAM 12, and controls the LEDs 6, 7 and the sound source 13. The sound source 13 is four-polyphonic having four sounding channels, and a musical sound waveform generated for each sounding channel is provided to a sound system 14 including an amplifier and a speaker, and is emitted. In addition, the RAM 12 is provided with an area for storing the music data and a register M for storing pitches 1 to 4 corresponding to the four sounding channels, as shown in FIG.
[0012]
Next, the operation of the present embodiment according to the above configuration will be described with reference to flowcharts. That is, when the power is turned on, the CPU 10 operates according to the main routine shown in FIG. 4, and first executes an initialization process (SA1). By this initialization processing, registers and the like used for subsequent control are cleared. Next, the CPU 10 scans the operation panel 15 to determine whether any of the “normal”, “record”, and “play” modes is set (SA2). Here, when both the recording switch 4 and the reproduction switch 5 are off, the normal mode is set, and the normal mode process (SA3) is repeated while the power is on.
[0013]
This normal mode processing (SA3) is performed according to the flow shown in FIG. 5, and first sets an initial value "0" to a register X indicating a key number (SB1). Next, the state of the key corresponding to the key number X is detected on the keyboard 10, and the state of the key with the key number X is “no change”, “OFF → ON”, “ON → OFF”. Is determined (SB2). If the result of this determination is that there is no change in the key with key number X, that is, if the key with key number X has not been operated, the process proceeds to SB5 without performing the processing of SB3 and SB4.
[0014]
When the key of the key number X changes from "OFF to ON", that is, when the key number X is pressed, a sound generation process is executed (SB3). By this sound generation processing, the sound source 13 generates a musical tone waveform having a frequency corresponding to the key number X according to an instruction from the CPU 10, and a tone having a pitch corresponding to the key number X is emitted from the sound system 14. When the key of the key number X changes from “ON → OFF”, that is, when the key number X is released, a mute process is executed (SB4), whereby the corresponding tone from the sound system 14 is output. Generation stops.
[0015]
Subsequently, after the value of the register X is incremented (SB5), it is determined whether or not the incremented value of the register X is equal to or larger than the value corresponding to the key range of the keyboard 10 (SB6). Then, the loop of SB2 to SB6 is repeated until “X ≧ key range”, and when “X ≧ key range”, the main routine of FIG. 5 returns. Therefore, in the present embodiment having the keyboard 2 composed of 61 keys having the key numbers 0 to 60, the loop of SB2 to AB6 is repeated 61 times, and the keyboard 10 Musical sounds are generated sequentially according to the above-mentioned performance operation.
[0016]
When the user operates the recording switch 4 to turn it on, the process proceeds from SA2 to SA4 in the main routine of FIG. 4, turns on the first LED 6, and starts the recording process (SA5). This recording process (SA5) is performed according to a series of flows shown in FIGS. 6 and 7, and first sets an initial value “0” to a register P (SC1). Here, the value of the register P indicates the position of the tune to be step-inputted by the number of beats, and also indicates the address of the tune data storage area of the RAM 12 for storing note data.
[0017]
That is, as shown in FIG. 8, in the music data storage area of the RAM 12, music data composed of pitch data and sound length data is stored for each address indicated by the value of P. Also, since the value of P corresponds to the number of beats, P = 0 corresponds to the music data of the tune head beat, and P = 2 corresponds to the music data of the third beat. Further, since the electronic musical instrument 1 of this embodiment is 4-polyphonic as described above, four pieces of music data are stored for each address.
[0018]
Then, first, "0" is set in the register P, then "0" is also set in the register X (SC2), and it is determined whether the foot pedal 9 has changed from OFF to ON. (SC3). When the foot pedal 9 is depressed to change from OFF to ON, the process proceeds from SC3 to SC4 to determine whether or not the key number X is ON. If the key number X is depressed and turned on, it is determined whether or not X is already stored in the register M (FIG. 3) (SC5).
[0019]
Here, since X is stored in the register M in SC8, which will be described later, of this flow, when the determination of SC5 is performed for the first time after the foot pedal 9 changes from OFF to ON, the register M is still stored in the register M. X is not stored. Therefore, the process proceeds from SC5 to SC6, where P is used as an address, and the key number X and its sound length L that are depressed are stored in the music data storage area of the RAM 12 shown in FIG. 8 (SC6).
[0020]
In SC6, the sound length L is a sound length value that is selected in advance by operating the sound length selector 8, as described later in SC18 of FIG. The note length L is a value obtained by setting the quarter note length to "1". For example, if the switch 8a of the note length selector 8 is operated in advance to select the eighth note length, The value is “0.5”, and this value “0.5” is stored in the music data storage area of the RAM 12 together with the key number X.
[0021]
Further, after the key number X is also stored in the register M (SC8), the register X is incremented (SC9). By performing the above-described determination process of SC4 to SC9 for all of the 61 keys, when “X ≧ key range” is satisfied, the process proceeds from SC10 to SC11, and the current value of the register P is set to “1”. To update P.
[0022]
Then, in SC17 of FIG. 7 subsequent to SC11, the tone length selector 8 is scanned, and the tone length of the tone length selector 8 selected by operating any of the switches 8a to 8e is stored in L (SC18). Thereafter, it is determined whether or not the recording mode has been changed to another mode (SC19). If the recording mode is not changed and the recording mode is continued, the determination process from SC2 is repeated to change the mode. Then, the process returns to the main routine.
[0023]
Further, when the discriminating process from SC2 in FIG. 6 is repeated, if the foot pedal 9 is depressed again, the process proceeds from SC3 to SC4 to SC5 as described above, and is X stored in the register M? Determine whether or not. At this time, when the foot pedal 9 was previously depressed and the key number X was depressed, and when the foot pedal 9 was depressed again this time while maintaining this depressed state, the previous processing of SC8 X is stored in the register M. Therefore, when such an operation is performed, the process proceeds from SC5 to SC7, and “L” is added to the tone length data corresponding to the key number X stored in the RAM, and then the above-described determination processing after SC9 is executed. I do. Therefore, when this operation is performed, for example, assuming that “L” is an eighth note length (0.5), the sound length data corresponding to the key number X is 0.5 + 0. Rewritten to 5 = 1 (quarter note length).
[0024]
On the other hand, when the determination process from SC2 is repeated, if the foot pedal 9 is not operated, the process proceeds from SC3 to SC12 in FIG. 7 to determine whether or not the key number X is ON. If it is ON, the process proceeds to SC15 without executing the determination process of SC13 and SC14, and if it is not ON and it is in the key release state, it is determined whether or not X is stored in the register M. It is determined (SC13). As a result of this determination, if X is stored in the register M, this is erased (SC14), and thereafter the register X is incremented (SC15). Then, the processing of SC12 to SC16 is repeated until “X ≧ key area” is satisfied, and when “X ≧ key area” is satisfied, the process proceeds from SC16 to SC17 to execute the above-described determination processing of SC17 and subsequent steps.
[0025]
In other words, to describe the above recording mode more specifically, when recording the notes of the pitch C3 and the pitch G3 shown at the beginning of the lower part of FIG. To select the eighth note length. Then, when the pitches C3 and G3 are depressed on the keyboard 2 by operating the foot pedal 9, the flow proceeds from SC3 to SC4 to SC5 to SC6 in the flow of FIG. 6, and the pitch data of the pitch C3 is obtained at SC6. And note data composed of pitch data of the eighth note length (0.5) and note data composed of pitch data of the pitch G3 and pitch data of the eighth note length (0.5) are stored in the RAM 12. It is stored in the music data storage area. In the next SC8, the key number of the pitch C3 and the key number of the pitch G3 are stored in the register M.
[0026]
Next, when the foot pedal 9 is left without being operated, when the determination process from SC2 is repeated, the result of SC3 becomes NO, and the process proceeds from SC4 to SC12. At this time, if only the pitch G3 is released, the process proceeds from SC12 to SC13 because the key of the pitch G3 is off. Further, since the key number X of the pitch G3 is stored in the register M in the above-described SC8, the process proceeds from SC13 to SC14 to delete the X stored in the register M, and then performs the processes in and after SC15.
[0027]
On the other hand, if the foot pedal 9 is depressed again while only the pitch C3 is kept depressed, when the determination process from SC2 is repeated, the result of SC3 becomes YES and the process proceeds from SC4 to SC4. Further, since the key number of the pitch C3 is on, SC4 becomes YES and proceeds from SC4 to SC5. Further, X corresponding to the pitch C3 is stored in the register M by the previous processing of SC8. Since it is stored, YES is determined in SC5, and the process proceeds from SC5 to SC7. Then, in SC7, "L" is added to the note length data corresponding to the key number X stored in the RAM 12, but since "L" is an eighth note length (0.5), The pitch data corresponding to the key number X (pitch C3) is rewritten to 0.5 + 0.5 = 1 (quarter note length). On the other hand, since the pitch G3, which has already been released, has been erased from the register M in SC14, the determination of SC4 is NO, and the pitch data is not rewritten. (0.5) remains as it is.
[0028]
Therefore, the first pedal operation is performed while the pitches C3 and G3 are simultaneously depressed, and the second pedal operation is performed while only the pitch G3 is released and the pitch C3 is depressed. Note that note data having a pitch C3 and a quarter note length and note data having a pitch G3 and an eighth note length can be stored in the music data storage area of the RAM 12. Therefore, note data can be simultaneously recorded with different pitches and pitches, similarly to the real-time recording method, even though the step recording method does not require a performance technique.
[0029]
Moreover, in this embodiment, since the foot pedal 9 which is depressed is used as the operation means, the pitch and pitch can be easily controlled while operating the keyboard 2 or the pitch selector 8 by hand. However, different note data can be easily recorded simultaneously. Of course, not only the foot pedal 9 but also a structure operated by a body part other than the hand such as a knee pedal or the like allows easy simultaneous recording of the note data.
[0030]
When the user operates the playback switch 5 to turn it on, the process proceeds from SA2 to SA6 in the main routine of FIG. 4, turns on the second LED 7, and starts the playback process (SA7). This reproduction processing (SA7) is performed according to the flow shown in FIG. 9, and it is determined whether or not the start / stop switch 3 has changed from OFF to ON (SD1), and if it has changed, the flag STF is inverted (SD2). ). Next, it is determined whether or not the flag STF has been set (SD3). If STF = 1, the initial value "0" is set in the register P (SD4). The prohibition is released (SD5). By the processing of SD5, the timer interrupt routine shown in FIG. 10 is executed by interrupting at fixed time intervals, and the flag F is set each time (SE1).
[0031]
In SD6 following SD5, it is determined whether or not an event is stored at the address indicated by the current value of P in the music data storage area of the RAM 12 shown in FIG. 8, using P as an address pointer. If it is stored in the event, event processing is performed (SD7), and the tone is generated according to the stored pitch and pitch.
[0032]
Subsequently, it is determined whether or not the flag F is in the set state (SD8). After the flag F is set by the timer interrupt routine executed at the predetermined time interval and the predetermined time has elapsed, P is incremented ( SD9). Next, as described above, it is determined whether or not an event is stored at the address indicated by the current value of P in the music data storage area of the RAM 12 shown in FIG. 8 (SD10), and the event is stored. If there is, the same event processing as in SD7 is performed (SD11), the flag F is reset (SD12), and the process returns.
[0033]
Then, if the determination process from SD1 is repeated again without operating the start / stop switch 3, the process proceeds from SD1 to SD13 to determine whether the flag STF is in the set state. At this time, since the flag STF is in the set state by the above-mentioned SD2 and SD3, the process proceeds from SD13 to SD8, and thereafter, the loop of SD1 → SD13 → SD8 to SD12 → SD1 is repeated until the start / stop switch 3 is operated again. repeat. As a result, the event processing of SD3 is executed at an interrupt time interval of the timer interrupt routine, whereby the automatic performance based on the music data stored in the music data storage area of the RAM 12 proceeds.
[0034]
Then, when the start / stop switch 3 is operated again to stop the automatic performance, the sequence proceeds from SD1 to SD2 to SD3 to SD14 to prohibit the timer interrupt. As a result, the flag F reset in SD12 is left in the reset state, and as a result, the determination process of SD8 to SD11 becomes impossible, and the automatic performance stops.
[0035]
【The invention's effect】
As described above, according to the present invention, when the operating means for generating the pitch data is continuously operated and the operation means is operated, the pitch data is stored again in the stored corresponding pitch data. Added and memorized. Therefore, after operating the two operators that generate different pitch data, the operation of one of the operators is stopped, and the operating means is operated while continuing to operate only the other operator. Can simultaneously record different note data. Therefore, note data can be simultaneously recorded with different pitches and pitches, as in the real-time recording method, even though the step recording method does not require a performance technique. Further, since the operating means is operated by a body part other than the hand, note data having different pitches and pitches can be easily and simultaneously recorded.
[Brief description of the drawings]
FIG. 1 is an external view of an electronic musical instrument to which an embodiment of the present invention is applied.
FIG. 2 is a block diagram showing a circuit configuration of the electronic musical instrument.
FIG. 3 is a diagram showing a configuration of a register M;
FIG. 4 is a flowchart showing a main routine of the embodiment.
FIG. 5 is a flowchart showing an outline of a normal mode.
FIG. 6 is a flowchart showing a part of an outline of a recording mode.
FIG. 7 is a flowchart following FIG. 6;
FIG. 8 is a conceptual diagram showing a part of music data stored in a RAM.
FIG. 9 is a flowchart showing an outline of a reproduction mode.
FIG. 10 is a flowchart showing a timer interrupt routine.
FIG. 11 is a diagram showing a musical example.
[Explanation of symbols]
2 keyboard 8 note length selector 9 foot pedal 10 CPU
11 ROM
12 RAM
15 Operation panel

Claims (2)

A plurality of controls each generating different pitch data in response to the operation;
Sound length data generating means for generating sound length data;
Operable operating means,
Storage means for sequentially storing pitch data generated by operation of the operation element and pitch data generated from the pitch data generation means in association with each other;
When the operation means is operated in a state where the operation element is continuously operated, the sound duration data generated by the sound duration data generation means is added to the corresponding sound duration data stored in the storage means. Storage control means for storing
A music data recording device comprising: 2. The music data recording apparatus according to claim 1, wherein said operation means is operated by a body part other than a hand.

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