JPH0690618B2 - Automatic playing device - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device having a function of automatically generating accompaniment sounds, rhythm sounds and the like. "Prior Art" As a conventional automatic performance device of this type, there is known one in which performance data is stored in a memory and the performance data is sequentially read to automatically generate a melody sound or an accompaniment sound. . In this case, the performance data also includes rhythm designating data that designates the type of rhythm, and rhythm sounds are also automatically generated based on this rhythm designating data. By the way, in recent years, rhythm data is sequentially stored in an area different from the memory area in which the above-mentioned performance data is stored, and an automatic performance device which automatically generates a rhythm sound based on this rhythm data is also available. Being developed. According to this automatic performance device, when performance data is selected, for example, an accompaniment sound is automatically generated and a rhythm sound is also generated. When rhythm data is selected, only a rhythm sound is automatically generated. "Problems to be Solved by the Invention" However, in such an automatic performance device, a problem occurs when both performance data and rhythm data are selected. That is, as described above, since the performance data also includes the rhythm designating data, when both are selected, two different rhythms are designated at the same time,
Alternatively, the rhythm may change in an extremely short time, resulting in a very unnatural and difficult-to-hear rhythm sound. The present invention has been made in view of the above-mentioned circumstances, and an object thereof is an automatic performance device in which an unnatural rhythm sound is not generated even if rhythm type designating functions which should be different are simultaneously activated. To provide. "Means for Solving Problems" An automatic performance device according to the invention according to claim 1 is a performance data storage means for storing rhythm type data and performance data other than the rhythm type data corresponding to a performance order. Rhythm type data stored in the performance data storage means and reading means for reading performance data other than the rhythm type data from the performance data storage means in correspondence with the performance order The rhythm type designating means for designating the type, the reading of the rhythm type data from the performance data storage means by the performance data reading means, and the designation of the rhythm type by the rhythm type designating means are performed redundantly. In either case, the rhythm designation by the rhythm type data or the rhythm designation made by the rhythm type designating means Control means for enabling one of them and disabling the other, and forming a rhythm sound based on the rhythm designation made valid by the control means, and playing data other than the rhythm type data read by the reading means. Sound source means for forming a musical tone signal based on In the automatic musical instrument according to the invention as claimed in claim 2, the control means validates the rhythm designation designated by the rhythm type designating means and invalidates the rhythm designation by the rhythm type data read by the reading means. It is characterized by that. According to a third aspect of the present invention, in the automatic performance device, the rhythm type designating means stores the rhythm type data from the second storage means in which the rhythm type data is stored in correspondence with the playing order, and the rhythm type data from the second storage means. Second reading according to performance order
Read-out means of [Operation] According to the present invention, the rhythm type data and the other performance data are stored in the storage means in correspondence with the performance order, and the reading means reads the rhythm type data and the other performance data. Is supplied to the sound source means to form a rhythm sound and a musical sound signal. On the other hand, in addition to the rhythm type data read from this storage means, the rhythm type may be designated by the rhythm type designating means. The sound source means generates a rhythm sound based on the rhythm type designated by the rhythm type designating means. Here, the case where the rhythm type data is read from the storage unit by the reading unit and the case where the rhythm type is designated by the rhythm type designating unit may overlap. In this case,
The control means validates one of the rhythm designation by the rhythm type data and the rhythm designation by the rhythm type designating means, and invalidates the other. As a result, the rhythm designation does not change unintentionally frequently or suddenly, and an unnatural rhythm sound is not generated. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the structure of an automatic musical instrument according to an embodiment of the present invention. The structure and operation of this automatic musical instrument will be described below in sequence. (1) Configuration In FIG. 1, 1 is a CPU (central processing unit), 2 is a CPU1
The program memory 3 in which the program used in is stored is a working memory used for temporary storage of data. Reference numeral 4 is a key switch for detecting a key operation provided corresponding to each key on the keyboard, 5 is a key switch interface for connecting the output of the key switch 4 to the bus line BUS of the CPU 1, and 6 is for setting a tone color, an effect, etc. Panel switch for switching, 7 is panel switch 6 for bus line
It is a panel switch interface connected to BUS. Reference numeral 8 is a tone signal forming circuit for forming a tone signal based on various data supplied via the bus line BUS, 9
Is an amplifier, 10 is a speaker, 11 is a rhythm sound forming circuit that forms a rhythm sound, and 12 is a rhythm pattern memory that stores various rhythm patterns used when the rhythm sound forming circuit 11 forms a rhythm sound. RG is a registration memory that stores the operation state of the panel switch 6. FIG. 2 is a diagram showing an example of the stored contents of the registration memory RG. As shown in FIG. 2, the registration memory RG stores a plurality of registration tables RGT1, RGT2, .... In addition, in each table RGT1, RGT2, ..., UK tone data that specifies the UK (upper keyboard) tone, LK tone data that specifies the LK (lower keyboard) tone, and PK (pedal keyboard) tone are specified.
PK tone color data, tempo data that specifies the tempo of the song,
Rhythm designation data for designating the type of rhythm is sequentially stored, and END data is stored at the end. The CSP (chord sequence programmer) shown in FIG. 1 is a performance data memory in which performance data for automatically playing an accompaniment sound is stored. FIG. 3 is a diagram showing an example of the contents stored in the performance data memory CSP. As shown in FIG.
The performance data memory CSP stores the registration table number, beat length data, chord data, and finally END data. Here, the registration table number is a number for designating one of the registration tables RGT1, RGT2, ... Of FIG. 2, and the beat length data is the timing at which the following chord data is output to the tone signal forming circuit 8. And the chord data are data for instructing the chord (chord) of the automatic accompaniment tone. RSP (Rhythm Sequence Programmer) is a rhythm data memory that stores rhythm data for automatically playing rhythm sounds. Fig. 4 shows this rhythm data memory RSP
2 is a diagram showing an example of the stored contents of the above. As shown in the diagram, the rhythm data memory RSP stores the beat length data and the rhythm type data, and finally the END data. Here, the beat length data is data indicating the timing of outputting the next rhythm type data to the rhythm sound forming circuit 11, and the rhythm type data is the type of rhythm (waltz,
Rumba, mambo, etc.). Note that this rhythm type data also includes various variations. (2) Operation (i) Pointer and Flag Prior to explaining the operation, the pointer and flag will be described. FIG. 5 is a diagram showing pointers and flags set in the working memory 3, and the meanings of the pointers and flags are as follows.

[Pointer]

Pc: A pointer indicating the read address of the performance data memory CSP. Pr: A pointer indicating the read address of the rhythm data memory RSP. Prg: A pointer indicating the read address of each registration table RGT1, RGT2 ... In the registration memory RG. TCL: A pointer that indicates the beat within one bar of the song at the present moment. In this embodiment, one bar is 96 beats.

【flag】

RUN: A flag that becomes "1" when a rhythm start is instructed. CSP / P: Flag that becomes "1" when automatic accompaniment is instructed. RSP / P: Flag that becomes "1" when automatic rhythm performance is instructed. (Ii) CPU1 Main Routine FIG. 6 is a flowchart showing the main routine of the processing of the CPU1. When this automatic performance device is powered on,
The CPU 1 first proceeds to the processing of step Sa1, and performs various initial settings such as the above-mentioned initialization of pointers and flags, clearing of registers in the tone signal forming circuit 8. Then step
Proceed to Sa2, and determine whether the performance data recording switch provided on the operation panel surface is on. If the result of this determination is "YES", the flow advances to step Sa3 to perform performance data recording processing. That is, when the operator sequentially inputs the registration table number, the beat length data, the chord data or the END data shown in FIG. 3, the CPU 1 sequentially writes each of the input data into the performance data memory CSP. A keyboard key, for example, is used as an input means for inputting each of the above data. Step Sa3 above
When the process of 1 is completed, the process of CPU 1 returns to step Sa2 again. On the other hand, if the determination result in step Sa2 is “NO”, the process proceeds to step Sa4. In step Sa4, it is determined whether or not the rhythm data recording switch provided on the operation panel surface is in the on state. Then, if this determination result is "YES", the flow proceeds to step Sa5, and rhythm data recording processing is performed. That is, when the operator sequentially applies the beat length data, rhythm type data or END data shown in FIG.
Rhythm data memory RS
Write in P. Then, the processing of the CPU1 returns to step Sa2. On the other hand, if the determination result in step Sa4 is “NO”,
Go to step Sa6. In step Sa6, it is determined whether or not the automatic accompaniment switch (push-on / release-off) provided on the operation panel surface is in the on state. And
If this determination is "YES", proceed to Step Sa7,
Invert the CSP / P flag. Then go to step Sa8,
It is determined whether the CSP / P flag is "1". Then, if this determination result is "YES", that is, if automatic accompaniment is instructed, the process returns to step Sa2, and if "NO" (if automatic accompaniment is not instructed), the process proceeds to step Sa9. In step Sa9, the Pc pointer is cleared, and the process proceeds to step Sa10. In step Sa10, it is determined whether the RSP / P flag is "1". Then, if this determination result is "YES", the process returns to step Sa2, and if "NO", the process proceeds to step Sa11. In step Sa11, "0" is written in the RUN flag. Then, the process returns to step Sa2. on the other hand,
If the determination result of step Sa6 is "NO", then step Sa1
Go to 2. In step Sa12, it is determined whether or not the automatic rhythm switch (push on / release off) on the operation panel surface is in the on state. Then, if the result of this determination is "YES", the flow proceeds to step Sa13. In step Sa13, the RSP / P flag is inverted. Next, when proceeding to step Sa14, RSP / P
Determine whether the flag is "1". If the determination result is "YES", that is, if the automatic rhythm performance is instructed, the process returns to step Sa2. If the determination result is "NO" (when the automatic rhythm performance is not instructed), step Sa15 is performed.
Go to. In step Sa15, the Pr pointer is cleared, and when the process proceeds to step Sa16, it is determined whether the CSP / P flag is "1". Then, if this determination result is "YES", the process returns to step Sa2, and if "NO", the process proceeds to step Sa17. In step Sa17, "0" is written in the RUN flag. Then, the process returns to step Sa2. Also, step Sa12
When the result of the determination is “NO”, the process proceeds to step Sa18. In step Sa18, it is determined whether or not the rhythm start switch (push on / release off) on the operation panel surface is in the on state. If the result of this determination is "YES", the flow proceeds to step Sa19, the RUN flag is inverted, and the flow returns to step Sa2. On the other hand, if the determination result in step Sa18 is "NO", the process proceeds to step Sa20, and other processing is performed, that is, the ON / OFF detection of the key switch 4, the sounding assignment of the turned-on key, the panel switch 6 (the above-mentioned ones). (Excluding the above) and the tone color change based on the operation state of the panel switch 6 is performed. And step Sa
Return to 2. The above is the main routine of the CPU 1, and the CPU 1 repeatedly executes the above main routine except when the interrupt processing described below is being performed. (Iii) Interrupt Processing Routine FIG. 7 is a diagram showing an interrupt processing routine based on the tempo clock TCL. In the automatic performance apparatus according to this embodiment, the CPU 1 is interrupted periodically based on the tempo clock TCL output from the tempo clock generator (not shown). In this case, the tempo clock TC
The cycle of L can be manually changed according to the speed of the music, and the number of tempo clock TCL pulses generated within one bar time is "96". When the processing of the CPU 1 proceeds to this ratio processing routine, first, in step Sb1, it is determined whether or not the RUN flag is "1". When the result of this determination is "NO", the procedure returns to the main routine. If the result of the above judgment is "YES", then the operation proceeds to step Sb2, and an autorhythm sound generation process is carried out. That is, by checking the TCL pointer, it is checked what beat of one bar the current time is, and then whether or not the current time is to generate a rhythm sound is detected based on the rhythm pattern in the rhythm pattern memory 12, If it is the time to generate the rhythm sound, the rhythm sound forming circuit 11 is instructed to generate the rhythm sound. Next, in step Sb3, the CSP
・ Determine whether the P flag is "1". If this determination result is "YES", the automatic accompaniment process Sb4 is performed, and "NO"
In the case of, the automatic accompaniment process Sb4 is jumped to step Sb5.
Go to.

[Automatic Accompaniment Processing Sb4] Here, the automatic accompaniment processing Sb4 will be described with reference to FIG. First, in step Sc1, it is determined whether or not the data in the address designated by the Pc pointer (address of the performance data memory CSP) is beat length data (see FIG. 3). Then, if the result of this determination is "YES", the flow proceeds to step Sc2, and it is determined whether or not the value of the beat length data is equal to the value of the TCL pointer. If the result of this determination is "NO", the routine returns to the interrupt processing routine of FIG. On the other hand, if the result of the determination in step Sc2 is "YES", the step
Proceed to Sc3. In step Sc3, the Pc pointer is incremented. Next, when proceeding to step Sc4, the data in the address designated by the Pc pointer (in this case, the code data) is read from the memory CSP and output to the tone signal forming circuit 8 in FIG. The tone signal forming circuit 8 forms an accompaniment tone signal based on the supplied chord data and outputs it to the speaker 10 via the amplifier 9. Then, step Sc5
Go to, increment the Pc pointer, and then the seventh
Return to the interrupt processing routine shown in the figure. On the other hand, if the result of the determination in step Sc1 is "NO", that is, if the data in the address indicated by the Pc pointer is the registration table number or END data, step S
Proceed to c6, and determine whether the data is the registration table number. When the result of this determination is "NO", that is, when the data is END data, the processing returns to the interrupt processing routine of FIG. If the determination result of step Sc6 is "YES", that is, if the data is the registration table number, the registration memory RG reading process Sc7 is performed.

[Registration Memory RG Reading Process Sc7] This process Sc7 is an automatic setting process of each switch of the operation panel such as the tone color setting switch, and is a register table number (k) in the address designated by the Pc pointer. Each data stored in the table RGTk (FIG. 2) is read out, set in the tone signal forming circuit 8 or the rhythm sound forming circuit 11, and output to the panel switch interface 7. The panel switch 6 is automatically set based on each data output to the panel switch interface 7. FIG. 9 is a flowchart showing the process Sc7 described above. First, when the processing of the CPU 1 proceeds to step Sd1, it is determined whether or not the data in the address of the registration table RGTk designated by the Prg pointer is UK (upper keyboard) tone color data. If the result of this determination is "YES", the flow proceeds to step Pd2 and the UK tone color data is set. Next, in step Sd3, the Prg pointer is incremented.
Next, in step Sd4, it is determined whether the data in the address indicated by the Prg pointer is END data. If the result of this determination is "YES", the routine returns to the routine shown in FIG. 8, and if it is "NO", the routine returns to step Sd1. Next, if the determination result in step Sd1 is "NO", the process proceeds to step Sd5. In step Sd5, it is determined whether or not the data in the address designated by the Prg pointer is LK (lower keyboard) tone color data. If the result of this determination is "YES", the flow advances to step Sd6 to set the LK tone color data. On the other hand, if the result of the determination in step Sd5 is "NO", then step S
Go to d7. In step Sd7, it is determined whether or not the data in the address designated by the Prg pointer is rhythm designation data. If the result of this determination is "YES", the flow proceeds to step Sd8 and it is determined whether the RSP.P flag is "1", that is, whether automatic rhythm performance is instructed. If the result of this determination is "NO" (when automatic rhythm performance is not instructed), the process proceeds to step Sd9 and P
Set the rhythm instruction data within the address indicated by the rg pointer. On the other hand, the judgment result of steps Sd7 and Sd8 is "N
In the case of “O”, although not shown in the figure, the process proceeds to the next step,
The same process as above is repeated. When the setting of all data in the registration table RGTk such as UK tone color data, LK tone color data, PK tone color data, tempo data, rhythm designation data is completed, the Prg pointer points to the address of the END data. As a result, the determination result of step Sd4 becomes "YES", and the process returns to the routine of FIG. The above is the details of the registration memory RG reading process Sc7. Returning to FIG. 8, when the above-described processing Sc7 ends, the processing of the CPU1 proceeds to the next step Sc8, increments the Pc pointer, and then returns to step Sc1. The above is the details of the automatic accompaniment process Sb4, and when the process advances to the automatic accompaniment process Sb4 in the interrupt processing routine of FIG. 7, the above-mentioned respective processes are performed. Then, this automatic accompaniment process Sb
When step 4 ends, the process proceeds to step Sb5. In step Sb5, it is determined whether the RSP / P flag is "1". If this determination result is "YES", the automatic rhythm performance processing Sb6 is performed, and if it is "NO", the automatic rhythm performance processing Sb6 is performed.
Jump b6 and proceed to step Sb7. The automatic rhythm performance process Sb5 will be described below with reference to FIG.

[Automatic Rhythm Performance Processing Sb5] First, when proceeding to step Se1 shown in FIG. 10, the address indicated by the Pr pointer (address of rhythm data memory RSP)
It is determined whether or not the data inside is beat length data. Then, if the result of this determination is "NO", the routine returns to the interrupt processing routine of FIG. 7, and if it is "YES" (in the case of beat length data), the routine proceeds to step Se2. In step Se2, the value of the same beat length data is TC
Determine if equal to L pointer. If the result of this determination is "NO", the process returns to the routine of FIG. 7 and "YE
If “S”, the process proceeds to step Se3. In step Se3, Pr
The pointer is incremented. Next, when proceeding to step Se4, the data within the address indicated by the Pr pointer (in this case, the rhythm type data) is read out and output to the panel switch interface 7 and the rhythm sound forming circuit 11. Next, the process proceeds to step Se5, the Pr pointer is incremented, and the process returns to the routine of FIG. The above is the processing content of the automatic rhythm performance processing Sb6, and when this processing Sb6 is completed, the routine proceeds to step Sb7 in FIG. In this step Sb7, the TCL pointer is incremented. Next, proceeding to step Sb8, it is judged whether or not the value of the TCL pointer is 0 ≦ TCL <23. And this judgment result is "YE
In the case of “S”, that is, when the current time is within the first quarter of one bar of the music, the process proceeds to step Sb9,
Turn on the timing lamp TL1 provided on the operation panel surface. Then, the process returns to the main routine of FIG. If the determination result in step Sb8 is "NO", step Sb
Go to b10. In step Sb10, it is determined whether or not the value of the TCL pointer is 24≤TCL≤47. And this judgment result is "YE
If “S”, that is, if the current time is within the next 1/4 period in one bar of the music, proceed to step Sb11,
Turn on the timing lamp TL2 provided on the operation panel surface. Then, the process returns to the main routine. If the result of the determination in step Sb10 is "NO", the process proceeds to step Sb12. In step Sb12, it is determined whether or not the value of the TCL pointer is 48≤TCL≤71. And this judgment result is "YE
In the case of “S”, that is, when the current time is within the third quarter period of one bar of the music, the process proceeds to step Sb13,
Turn on the timing lamp TL3 provided on the operation panel surface. Then, the process returns to the main routine. If the determination result of step Sb12 is “NO”, the process proceeds to step Sb14. In step Sb14, the timing lamp TL4 on the operation panel surface is turned on. Then, the process proceeds to step Sb15. In step Sb15, it is determined whether the value of the TCL pointer is "96". When the result of this determination is "NO", the procedure returns to the main routine. On the other hand, the judgment result of step Sb15 is "YE
In the case of "S", that is, when one bar of the music has just ended, the process proceeds to step Sb16, the TCL pointer is cleared, and the process returns to the main routine. The above is the details of the embodiment of the present invention. As described above, according to the present invention, when the automatic rhythm performance is instructed (when the RSP / P flag is “1”), the rhythm designation data in the registration tables RGT1, RGT2 ... It is not set to 11 (see steps Sd7 to Sd9 in FIG. 9). Therefore, the rhythm sound based on the rhythm designation data in the performance data memory CSP and the rhythm data memory RSP
There is no inconvenience that both rhythm sounds are generated based on the rhythm type data. In the above embodiment, chord data of the accompaniment sound is stored in the performance data memory CSP, and the accompaniment sound is automatically played.However, instead of this, data indicating the pitch of the melody sound is stored, The melody sound may be automatically played. [Advantages of the Invention] As described above, according to the present invention, the case where the rhythm type data is read from the storage means by the reading means,
When the case where the rhythm type is designated by the rhythm type designating means overlaps, either one of the rhythm designation by the rhythm type data and the rhythm designation by the rhythm type designating means is validated and the other is invalidated. . As a result, there is an effect that the rhythm designation does not change unintentionally frequently or abruptly, and an unnatural rhythm sound is not generated.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention,
2 is a diagram showing an example of the stored contents of the registration memory RSP, FIG. 3 is a diagram showing an example of the stored contents of the performance data memory CSP, and FIG. 4 is a diagram showing an example of the stored contents of the rhythm data memory RSP. 5 is a diagram showing pointers and flags, and FIGS. 6 to 10 are flowcharts showing the processing steps of the CPU 1 in FIG. 1, respectively. 1 ... CPU, 2 ... program memory, 3 ... working memory, 6 ... panel switch, 8 ... tone signal forming circuit, 11 ... rhythm sound forming circuit.

Claims (3)

[Claims] 1. A performance data storage means for storing rhythm type data and performance data other than the rhythm type data corresponding to a performance order, and a performance data storage means for storing the rhythm type data and the rhythm type data other than the rhythm type data. Reading means for reading the performance data corresponding to the performance order; rhythm type designating means for designating the type of rhythm separately from the rhythm type data stored in the performance data storing means; and the performance data reading means. When the reading of the rhythm type data from the performance data storage unit and the designation of the rhythm type by the rhythm type designating unit are performed in duplicate, the rhythm designation by the rhythm type data,
Control means for validating one of the rhythm designations made by the rhythm type designating means and invalidating the other, and forming a rhythm sound based on the rhythm designation made valid by the control means, and Sound source means for forming a musical tone signal based on performance data other than the rhythm type data read by the reading means. 2. The control means validates the rhythm designation designated by the rhythm type designating means, and invalidates the rhythm designation by the rhythm type data read by the reading means. 1. The automatic performance device described in 1. 3. The rhythm type designating means includes a second storage means for storing rhythm type data corresponding to a performance order.
2. The automatic musical instrument according to claim 1, further comprising: second reading means for reading the rhythm type data from the second storage means in correspondence with a performance order.