JPH0782324B2 - Scale information processing device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a scale information processing apparatus for reading out a plurality of scale information, which has been input in a memory in advance, by operating a specific key and reproducing and outputting the sound.

[Conventional technology]

Conventionally, so-called one-key play, in which scale information is input in advance in a memory as a simple reproduction processing method of a scale state, and one tone is read for each operation of a specific key, and a performer plays a song while adding a note length. A method of reading out a musical scale called "A" is considered. In this case, the presetting of the scale information to the memory is performed by a method in which the performer operates the keys on the keyboard to manually play the song, and further, a plurality of musical tone information such as chords is stored. It is also considered to read out and play chords by the above one-key play.

[Problems of conventional technology]

However, in the above-mentioned conventional method, it is not possible to read and play a plurality of musical tones having different tone lengths with a single key. Therefore, when the score becomes a little complicated, it is impossible to perform the one-key play. .

[Object of the Invention]

It is an object of the present invention to provide a scale information processing device for an electronic musical instrument, which allows a musical piece having a plurality of scales having different tone lengths to be reproduced and played with a specific key for each musical score.

[Main points of the invention]

When the scale information preset in the memory is read out and played back by operating a specific key, etc., it is judged whether ON information or OFF information of multiple scales has been read continuously, and it is read continuously. If not, the means for reproducing the musical tones of the first scale and the processing for simultaneous reproduction of the musical tones of a plurality of scales if they are continuous are provided.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
In FIG. 1, reference numeral 1 in FIG. 1 denotes a keyboard provided on the front side of the case body of the electronic musical instrument and provided with a plurality of keys. Again 2
Both A and 2B are one-key play keys, and the tone information of a predetermined music preset by a key operation can be read out one by one to a memory (data storage section) described later and reproduced and emitted. Further, reference numerals 3, 4 and 5 are a reset key, an auto play key and a clear key, respectively, which are used when the musical tone information is set in the data storage unit and when the automatic play is performed by the musical tone information in the data storage unit. Reference numeral 6 indicates a rhythm, tone color designation and other key groups. Mode switch 7 is OFF (off mode), REC (recording mode), PLAY
It has a switching contact for (play mode), so that the recording mode can preset the musical tone information to the data storage section, and the play mode can perform one-key play or auto play. Reference numeral 8 in the figure is a sound emitting unit. It should be noted that LSI (Large Scale Integrated Circuit) parts, speakers, batteries, etc. are housed in the case body.

In FIG. 2, 9 is the above-mentioned keyboard 1, one-key play key
2A, 2B, keys 3, 4, 5, 6, and a mode switch 7 are provided, and the output from each key and switch of this key input unit 9 is input to the control unit 10. The control unit 10 consists of a control program etc. for all the operations of this electronic musical instrument,
Various micro-commands are output according to the input signal from the key input unit 9. Then, the arithmetic unit 11 is controlled to execute various arithmetic operations. Further, the control unit 10 outputs a read / write control signal R / W and address data ADR to the data storage unit 13 to read and write data. To this data storage unit 13, musical tone information of a predetermined song by key operation is input,
When playing one key, the musical tone information is stored in the data storage section.
Read from 13. In this case, at the time of the above input, the scale data buffer 14-a of the buffer 14 receives the scale data output by the control unit 10 in response to the key output, and the data storage unit 13
Given to. Further, the count value of the sound length counter 17 is input to the sound length buffer 14-b as sound length data and given to the data storage unit 13. On the other hand, at the time of auto play, the tone length data read from the data storage unit 13 is input to the tone length buffer 16, and the comparison circuit 15 compares this tone length data with the count value of the tone length counter 17. When the two match, the comparison circuit 15 outputs a match signal C and supplies it to the control unit 10, and accordingly, the control unit 10 increments the data storage unit 13. The tone length counter 17 is reset by a reset signal R output from the control unit 10 as appropriate.

The scale data read out from the data storage unit 13 together with the above-mentioned tone length data at the time of one-key play and auto play are the chord conversion unit 1 (18-a) and the chord conversion unit 2 (18
-B), input to any of the code conversion unit 3 (18-c),
The musical tone generation unit 1 (19-
a), the musical tone generating section 2 (19-b), the musical tone generating section 3 (19-
given to c). The tone generating units 1, 2 and 3 respectively generate a tone signal based on the inputted tone generating information, give it to the amplifier 20, and further emit it as a tone through the speaker 21 and the tone emitting unit 8. Therefore, the electronic musical instrument according to this embodiment is a three-tone polyphonic sound that can simultaneously generate up to three musical tones because three musical tone generating units 1, 2, and 3 are prepared.

Next, the operation related to one-key play will be described. Now, preset the music of the score shown in FIG. 3 in the data storage unit 13,
Next, an example is given in which the music is reproduced and emitted by one-key play.

First, the input operation of the musical scale of a music piece will be described with reference to FIGS. Thus, FIG. 4 shows the flow chart, the key operation state, and the tone generation state, FIG. 5 shows the storage state of the data storage unit 13, and FIG. 6 shows the key operation state.

Now, after setting the mode switch 7 to REC (recording mode), when the key of the scale of the keyboard 1 is first turned on and the scale is input, the tone length data in the tone length counter 17 becomes the tone length buffer 14-b. First, it is transferred (process of step S ₁ of the flow chart in FIG. 4). In this case, the initial tone length data is dummy tone length data that is not related to the performance, so any value may be used. Next, for the sound length counter 17, the control unit
10 outputs the reset signal R and resets (step
S ₂ ). Next, the dummy tone length data t ₀ input to the tone length buffer 14-b is written to address ₀ of the data storage unit 13 (step S ₃ ), and then the control unit 10 increments the internal address counter (+1). And set No. 1 (Step
S ₄ ). Next, the control unit 10 discriminates the scale data (ON information).
Is sent to, for example, the chord conversion section 1, and the musical sound generation information is given to the musical sound generation section 1. Therefore musical tone generating unit 1 generates a musical tone signal of the scale-de, amplifier 20, speaker 21 to sound through the sound emitting portion 8 (step S _5). In addition, the control unit 10
Gives the above scale data to the scale data buffer 14-a, and writes it to the address 1 of the data storage unit 13 (step
S ₆ , S ₇ ). Then setting the second address by +1 address counter (step S _8).

Next, when the key of the scale is turned off, the processing of step S _{1 and} below is executed again. First, the step S _1, the count value t ₁ of the sound length counter 17 is transferred to the tone length buffer 14-b. Next, the tone length counter 17 is reset and prepared for the next counting operation. (Step S ₂ ). Then, the tone length data t ₁ is written in the address 2 of the data storage unit 13 (step S ₃ ). Next, the address counter is incremented by 1 and the address 3 is set (step S ₄ ), and then the control unit 10 sets the scale data.
Mode (OFF information) is given to the chord conversion section 1, so that the musical tone of the scale de is muted (step S ₅ ). Next, the scale data is transferred to the scale data buffer 14-a,
It is written in the address 3 of the data storage unit 13 (step S ₆ ,
S ₇ ). Then, the address 4 is set by the increment processing.

The preset processing of the second and third tone sounds is the same as that of the first tone sound, and the explanation thereof is omitted, but during this period, the address counter is incremented up to the 12th address.

Next, when three keys of simultaneous tone generation, three keys of scale, do, mi, and so are turned on in sequence, according to the input process of the control unit 10, for example, each scale data (ON information) in the order of scale do, mi, and so. Is entered. In this case, the processing of steps S _{1 to} S ₈ is 3
Repeatedly, first, as shown in FIG. 4 in the first processing, the tone length data t ₆ is set at the address 12 of the data storage unit 13, and the scale data (ON information) is set in the chord conversion unit 1, for example.
Is transferred, the musical sound is emitted, and the scale data is written in the address 13 of the data storage unit 13. Similarly 2
In the 3rd and 3rd processing, the simultaneous sounding of the scale and the preset processing of the sound are performed, and the scale data is recorded at the 14th address (ON information).
Of sound length data t _7, entered the sound floor data to the number 15, also
Scale data at address 16 (ON information) scale length data t ₈ , 17
The scale data is input to the address. At the same time the code conversion unit 2
The scale data (ON information) is transferred to, and the scale data (ON information) is transferred to the chord converter 3. As a result, the three musical tones, M, M, and S, are emitted at the same time after starting to sound in sequence.

Next, when the keys of the scales M, S, and S are sequentially turned off while the keys of the scale D are kept on, the processing of steps S _{1 to} S ₈ is executed twice for the off operation. That is, the process of turning off the key of the scale M is executed first, and as shown in FIG. 4, the tone length data t ₉ of the scale data M (OFF information) is written at the address 18,
The scale data is written at address 19. And the musical sound of the scale M is muted. The scale data source (OF
F information) note length data t ₁₀ is written, the scale data is written at address 21, and the tone of the scale S is muted.

Next, while holding down the key of scale D, turn on each key of the next scale Hua and La in sequence, as shown in FIG. 4, according to the processing already described, the scale data data (ON Information) note length data t ₁₁ and its scale data, and scale data LA (ON information) tone length data t ₁₂ and its scale data are written respectively, and according to this, the musical notes of scales Hua and La are sequentially pronounced. Three musical tones are emitted at the same time as the musical tones.
Then, when the three keys of scales Hua, La, and Do are sequentially turned off, the above-mentioned off processing is executed, and each scale data (OFF information) and the length data are written in the designated address.
Also, each tone is muted at the same time. Further, the preset processing after the scale is the same as above.

Next, an operation of inputting an accurate tone length while performing a one-key play for the tone scale data of the song which is preset in the data storage unit 13 as described above will be described. In this case, the mode switch 7 is kept in REC (recording mode), and the reset key 3 is operated to reset the storage unit 13. FIG. FIG. 9 is a storage state diagram of the data storage unit 13 rewritten into accurate tone length data, and FIG. 9 shows musical tones produced by operating the one-key play keys 2A and 2B.

Of the one-key play keys 2A and 2B, for example, when 2A is turned on, the tone length data of the tone length buffer 14-b at that time is
It is written to address 0 of the data storage unit 13 (step T ₁ ).
The tone length data at address 0 is not used as meaningless dummy tone length data as described above.

Next, after the tone length counter 17 is reset, the count operation is started (step T ₂ ), and the address counter is incremented by 1 to specify the first address (step T ₃ ). Then address 1 of the scale data "de ON" (the H ₁₎ is read, the tone of the scale de starts sound is sent for example to the code conversion unit 1 (step T _4, T _5). And specifies the address 3 address counter is +2 (step T _6), (a H ₂₎ scale data "de OFF" from which is read (step T _7).
Next, the scale data of H ₁ and H ₂ are compared, and both H ₁ and H ₂ are turned on.
(Or OFF) It is judged whether or not the information is present (step T ₈ ).
Since now "de ON" and "de OFF" is compared is "NO", the address counter is -1 proceeds to step T _9, 2 address is specified.

Next, when the one key play key 2A is turned off after the passage of the quarter note of the first tone de, exactly, the count value of the note length counter 17 at that time is the exact quarter note length at the second address. Is written (step T ₁ ), then the tone length counter 17 is reset and the counting operation is started again (step T ₂ ). Next, step T _3, T _4, T scale data from the third address by treatment ₅ "de OFF" (H ₁₎ is sent is read in the code conversion unit 1, the one-key play key pronounce first tone de
Stops when 2A is turned off. And step T ₆ ,
By each processing of T ₇ and T _8, the scale data “LE ON” (H
₂ ) is read and H ₁ and H ₂ are compared. In this case it Thus is also "NO", return one address proceeds to step T _9, 4 address is specified.

Next, after turning off the one-key play key 2A for the first musical note “do”, leave a very short time and then press the one-key play key 2A.
Is turned on again, and the step is started when the second tone reproduction process is started.
By the process of T ₂ , the count value Δt (indicating that the tone length is extremely short) of the tone length counter 17 at that time is written in the address 4, and then the step T ₁ through T _8, T ₉ is executed, sound of the second musical sound les, mute is performed, the accurate sound length data (quarter note) is written to address 6 (see FIG. 8). The same applies to the third tone "mi", and the description thereof will be omitted.

Next, when the processing of the musical tones “do”, “mi” and “so” which are sounded at the same time is started and the one key play key 2A is turned on, the third key
Tone duration data Δt is written in 12 address as an off-time of the tone (step T _1), tone length counter 17 is reset (step T _2). And the scale data “DO ON” from the 13th address
(H ₁ ) is read and sent to the code conversion unit 1 to start sound generation (steps T _{3 to} T ₅ ). Next, the scale data “Mi ON” (H ₂ ) is read from the address 15, and it is judged that both are ON information, and the process proceeds to step T ₁₀ (steps T _{6 to} T
₈ ). Therefore, the scale data “MI ON” (H ₂ ) is sent to the chord converter 2 and is sounded together with the scale D. Then address the sound length data "0" in place of the sound length data t ₇ there are the returned to the address 14 is written (step T _11, T _12). As a result, it is set that the scales "do" and "mi" are tones that are produced simultaneously. Then, the tone length counter 17 is reset (step T ₁₃ ), the address counter is incremented by 3 and the 17th address is set, and from there, the scale data “SO ON” is set.
(Denoted as H ₃ ) is read (steps T ₁₄ , T ₁₅ ). That is, this means that the third tone of the simultaneous sound is read.
Next, it is judged whether or not H ₁ , H ₂ , and H ₃ are all ON (or OFF) information (step T ₁₆ ), and thus “YES”, and the step is
Continue to T ₁₇ .

Step T ₁₇ in scale Detaso ON is sent to the code converter 3 scale tone of "Soviet" is scale "de" is played simultaneously with the tone of "Mi". The address is only one returned to the address 16, there to sound length data "0" avoid Kawatsute excisional to sound length data t ₈ (step T _18, T _19). That is, it means that the scales "do", "mi", and "so" are set to be musical tones produced simultaneously. Next note length counter
17 is reset again, and the address counter is incremented by 2 to set address 18 (steps T ₁₉ , T ₂₀ ).

After three tones of the scales “do”, “mi”, and “so” have started playing at the same time, when the one-key play key 2A is turned off after the quarter note duration has elapsed, the note counter 17 counts at that time. The value (note length data of quarter note) is set at the address 18 in place of the note length data t ₉ (step T ₁ ). Next, from the 19th address after the reset of the tone length counter 17, the scale data "MI OF
F "(H ₁ ) is read out and sent to the corresponding chord conversion section 2, so that the musical sound of the scale M is muted (steps T ₂ ~
T ₅ ). Further, the scale data “SO OFF” (H ₂ ) is read from the address 21, and it is judged that both H ₁ and H ₂ are OFF information, and the process proceeds to step T ₁₀ (steps T _{6 to} T ₈ ). Therefore, the musical sound of the scale is muted. Then, at the address 20, the tone length data “0” is written in place of the tone length data t ₁₀ .
Processing is performed to show that "so" is a simultaneously muted tone (steps T ₁₁ and T ₁₂ ). And note length counter 17
After resetting, the scale data “Hua ON” (H ₃ ) from the address 23
Is read (steps T _{13 to} T ₁₅ ) and then step T ₁₆
Then 22 is set as "ON" (step
T ₉ ).

Then, when the one-key play key 2A is turned off and then turned on immediately, an extremely short tone length data Δt is set at the address 22 in place of the tone length data t ₁₁ (step T ₁ ). "Fur ON" (H ₁ ) is read and sounded (steps T _{2 to} T ₅ ). In addition, scale data “La O
N "(H ₂ ) is read, it is determined that both are ON information, and the process proceeds to step T ₁₀ (steps T _{6 to} T ₈ ).

The pronunciation processing of the scale data “Hua” and “La” that are sounded at the same time is the same as the case of the scale data “Do”, “Mi”, and “So” described above. Below, steps T _{10 to} T ₁₅ are executed, Step
Scale Detado OFF T _16-in address 27 is read is "NO".

When the one key play key 2A is tone length elapses after off quarter note from the previous one, the sound length data of the four-note 26 address by step T ₁ is is Kawatsute excisional to t _13. Then, the scale data “Hua OFF” (H ₁ ) is read from the 27th address, and the scale “Hua” is muted. Further, the scale data "LA OFF" (H ₂ ) is read from the address 29, and the process proceeds to step T ₁₀ through step T ₈ . Therefore, the scale "La" is also muted. And 2
Tone duration data instead of the sound length data t ₁₄ at number 8 "0" is excisional, tone length counter 17 is reset (step T ₁₁
~ T ₁₃ ). Next, the scale data “DO OFF” (H ₁ ) is read from address 31, and it is judged that H ₁ , H ₂ and H ₃ are all OFF information, and the process proceeds to step T ₁₇ (steps T _{14 to} T ₁₆ ). Therefore, the scale D is also muted, and the tone length data "0" is set at the 30th address, whereby processing is performed to show that the scale D, HUA, and LA are mute simultaneously. The tone length counter 17 is reset, also address 32 is excisional (step T ₁₇ through T _21).

Next, if the one-key play key 2A is turned off immediately after the previous one-key play key 2A is turned off, the tone length data Δt is set at the address 32, and the processing for the musical tone of the musical scale is performed as described above.

As described above, after the scale and length of the song shown in FIG. 3 have been accurately input to the data storage unit, the mode switch 7 is set to PLAY (play mode) and the auto play key 4 is set.
When is turned on, the music is automatically played. In this case, the scale data read from the data storage unit 13, for example, “DO ON” at address 1 and “DO OFF” at address 3 are input to the chord conversion unit 1 or the like to sound or mute the musical tone. Be seen. Also, note length data, for example, quarter note at address 2 and Δt at address 4.
Etc. are input to the tone length buffer 16 and compared with the count value of the tone length counter 17. When the count value matches the tone length data input to the tone length buffer 16, the quarter note, Δt, etc., the comparison circuit 15 outputs a coincidence signal C to the control unit 10, increments the address counter, and outputs it. In response, the control unit 10 outputs a reset signal R to output a tone length counter.
Reset 17 In this way, the pronunciation and mute processing is automatically performed while reading out the scale data one by one. In addition, the fourth musical note “do”, “mi” of the song in FIG.
In the case where two or more musical tones are pronounced and muted at the same time, such as "So", the fifth musical tone "Do", "Hua", "La", as shown in FIG. Scale data,
Alternatively, since the tone length data between the "OFF" scale data is "0", simultaneous sound generation and mute processing is executed.

In addition, in the play mode, when the performer performs one-key play performance while adding the note length himself, the address counter is incremented for each ON operation and OFF operation of the one-key play keys 2A and 2B, and the scale data is sequentially output. It is read and sent to the code conversion units 1, 2, and 3 to be sounded and muted. In this case, the sound generation time and mute time of each musical sound data are rewritten according to the ON / OFF operation of the one-key play keys 2A and 2B without rewriting the sound long time.
Is controlled and the sound is produced and muted as in the above-described embodiment, so that the player can enjoy the one-key play performance. Also, the simultaneous sounding and muting of a plurality of musical tones described above are exactly the same as in the above-described embodiment.

In this embodiment, when inputting scale information to the memory,
Since the musical sound of that scale is emitted, the scale information to be input can be confirmed, and incorrect input of scale information can be prevented.

〔The invention's effect〕

As described above, according to the present invention, when the scale information input to the memory is read and reproduced by the operation of a specific key or the like, it is determined whether or not ON information or OFF information of a plurality of scales is continuously read. Provided is a scale information processing device which, in addition to making a judgment, reproduces the musical sound of the first scale if it is not read continuously, and simultaneously reproduces the musical sound of multiple scales if it is continuous. Therefore, there is an advantage that the musical score can be easily reproduced even for a plurality of scales having different tone lengths.

Further, since the present invention is a processing method for reading and reproducing continuous ON information or OFF information of a plurality of scales,
Even when a plurality of tones are pronounced or muted at the same time when inputting scale information, it is sufficient to operate the keys in sequence, and there is also an advantage that no special technique is required.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic musical instrument according to an embodiment of the present invention, and FIG.
FIG. 4 is a circuit configuration diagram, FIG. 3 does not show an input musical score, FIG. 4 is a diagram showing a flow chart and key operation states at the time of inputting musical tone information, and FIG. 5 is preset in the data storage unit 13. FIG. 6 is a state diagram of tone information, FIG. 6 is a diagram showing a key operation state at the time of presetting the tone information, FIG. 7 is a diagram showing a flow chart and a key operation state when presetting accurate tone length data, and FIG. The figure shows the storage status of the data storage unit 13,
FIG. 9 is a diagram showing a key operation state. 1 ... keyboard, 2A, 2B ... one-key play key, 4 ... autoplay key, 7 ... mode switch, 10 ... control section, 11 ... calculation section, 13 ... data storage section, 14 ... buffer , 15 …… Comparison circuit, 16 …… Sound length buffer, 17 …… Sound length counter, 18-a, 18-b, 18-c …… Code conversion section,
19-a, 19-b, 19-c ... Music tone generator, 20 ... Amplifier, 21 ... Speaker.

Claims (1)

[Claims] 1. Input means for sequentially inputting ON information or OFF information of each scale of a piece of music, storage means for storing ON information and OFF information of the scale input by this input means, and operation of a one-key play key. Read-out means for continuously reading a plurality of scale ON information and OFF information stored in this storage means in the order of input, and first read-out ON information among the plurality of information read by this read-out means Alternatively, the judgment means for judging whether or not the same information is continuously read after the OFF information, and when the judgment means judges that the same information is not continuously read, Playback processing means for performing playback processing of musical tones and performing simultaneous playback processing of musical tones of a scale of the first information and the same and continuous information when it is determined that the tones are continuously read. Special feature Scale information processing device to be used.