JP2570631B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus for modifying a stored performance information to reproduce a performance.

[0002]

2. Description of the Related Art Conventionally, as disclosed in JP-A-64-4794, JP-A-58-46391 and JP-A-59-198499, a stored performance information is read out and a reproduction performance is performed. There is an automatic performance device that can modify the stored performance information so that the performance can be reproduced. The correction of performance information in this type of automatic performance device is performed by the following method. In Japanese Patent Application Laid-Open No. 64-4794, while a desired timing range within a predetermined length section of a performance data memory in which performance data is stored over a plurality of predetermined length sections is designated, a condition for changing performance data is designated. The performance data for each predetermined length section belonging to the specified specific timing range is changed over a plurality of predetermined length sections in accordance with the specified change condition.

In Japanese Patent Application Laid-Open No. 58-46391, a desired correction portion is designated during reproduction of performance data, the position is stored, and reproduction is stopped at the beginning or end of a bar at the designated position at the time of reproduction again. And make corrections. In Japanese Patent Application Laid-Open No. 59-198499, stored performance data is reproduced, and when a pre-specified correction start position is reached, the storage mode is entered from that position, and the performance data is stored by keyboard performance.

[0004]

However, the above-mentioned conventional automatic performance apparatus has the following problems. (A) In Japanese Patent Application Laid-Open No. Sho 64-4794, the section to be corrected is specified without performing the reproduction performance, so that it is not easy to specify the section. (B) In Japanese Patent Application Laid-Open No. Sho 58-46391, correction can be specified only in measures, and correction is performed one note at a time, so correction takes time and is troublesome. (C) In JP-A-59-198499, it is not possible to specify the correction end position. Therefore, even if only a short range is to be corrected, the performance must be redone to the end. Note that this conventional example does not describe how to specify the correction start position.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic performance apparatus capable of designating a section to be modified while listening to a performance based on stored performance information during reproduction.

[0006]

To achieve the above object, an automatic performance apparatus according to the first aspect of the present invention comprises a storage means for storing performance information, a reading means for sequentially reading performance information from the storage means, Reproducing means for performing a reproduction performance based on the performance information read from the storage means; correction section specifying means for specifying a correction section for the performance information read by the reading means; and correction data input for inputting correction data Means and writing means for writing the correction data information input by the correction data input means into an area of the storage means corresponding to the correction section designated by the correction section designation means.

In a preferred embodiment, the correction data input means may input, as correction data, performance information obtained by detecting a performance operation. For example, as in the invention according to claim 3, a stop means for stopping the reproduction performance by the reproduction means when the correction end position is specified by the correction section specifying means may be provided. For example, as in the invention described in claim 4, an informing means for informing the start of the performance operation detection may be provided. For example, as in the invention described in claim 5, the notification means may perform notification by sound.

[0008]

According to the present invention, a desired correction section in the performance information is specified by the correction section specifying means during the reproduction of the performance information. Therefore, since the correction section can be specified while listening to the performance during the reproduction of the performance information, the required correction section can be easily specified.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a circuit configuration of an embodiment of an automatic performance apparatus according to the present invention. A. FIG. 1 is an overall circuit diagram of an automatic performance apparatus according to an embodiment of the present invention, and shows a central processing unit C of a microprocessor.
A PU 1 controls the entire circuit of the embodiment based on a program in a ROM (read only memory) 2 as a program memory and a processing operation by a working memory (not shown). Key press information (performance information) output by key operation is received, and the key press information is stored in a RAM (random access memory) 4 as a storage means. The CPU 1 stores and corrects the key press information by a designation operation of a switch unit 5 composed of a plurality of switches, and a display unit 6 displays an ON state of a switch of the switch unit 5. It consists of an LED (light emitting diode = light emitting diode). Further, the CPU 1 outputs the key press information stored in the RAM 4 to the musical tone generating section 7 by operating the switch section 5, and the digital signal, which is the musical tone signal output from the musical tone generating section 7, The signal is converted into an analog signal, and is output as a musical sound through the amplifier 9 and the speaker 10.

The switch unit 5 and the display unit 6 are composed of an edit mode switch 5-1 and an edit mode LED 5 as shown in FIG.
2, punch-in switch 5-3, edit switch 5
-4, an edit LED 5-5, and a punch-out switch 5-6.

B. FIG. 3 shows the operation of the CPU 1 in the automatic performance apparatus according to this embodiment.
3 is a flowchart of the edit mode processing of the edit mode switch 5-1 shown in FIG.
Is started when a switch operation to the edit mode is performed to edit (correct) the previously recorded key press information by the ON operation of (step S1). In step S2, the reproducing means such as the amplifier 9 and the speaker 10 reproduces the key press information (sequence data) recorded on the sequence track as the storage means. Here, as shown in the RAM storage state diagram of FIG. 4, the sequence data is recorded on a predetermined sequence track in the RAM 4 serving as storage means, and the sequence track is, for example, 1FFFH bytes (H is a hexadecimal notation). Shown).

In step S3, the sequence data is reproduced from the beginning, and it is checked whether or not the punch-in switch 5-3 as the correction section designation means has been turned on during the reproduction (step S4). In this case, the flow returns to step S3 to continue the reproduction performance,
In the case of S, the point at which the correction of the sequence data is started is designated. Then, in step S5, the address of the sequence data when the punch-in switch 5-3 is turned on, for example, the address 50H as shown in FIG. 4, is saved in the punch-in address buffer in the CPU 1.

In step S6, the reproduction of the sequence data is continued, and whether or not there is no more sequence data to be reproduced or the sequence data of the correction section to be corrected is moved and stored as correction storage means. It is checked whether or not the reproduction has been performed by exceeding the memory capacity of the edit buffer (the memory capacity is, for example, 100 Hbytes) as shown in FIG. Therefore, in the case of YES, before the punch-out switch 5-6, which is the correction section specifying means for specifying the end point of the correction section, is turned on, the sequence data is exhausted or the memory capacity of the edit buffer is exceeded. In step S8, the address 50H previously saved in the punch-in address buffer is cleared to 0, the reproduction of the sequence data is stopped, and the editing is performed in step S8. End the mode once.
Therefore, in this case, it is necessary to perform the operation again so as to set the correction section within a range not exceeding the capacity of the edit buffer.

If NO in step S7, it is checked in next step S9 whether or not the punch-out switch 5-6 has been turned on. If NO, a correction section for which the sequence data is still to be corrected is determined. Since the end point is not specified, the process returns to step S6, and the reproduction of the sequence data is continued. If yes,
Since the end point of the correction section is designated and the desired modification section is designated, the address of the sequence track at the time of the designation operation, for example, the address D0H as shown in FIG. After saving the data in the buffer, the reproduction unit is instructed to stop reproducing the sequence data.

When the punch-out switch 5-6 is turned on and the punch-out address is saved in the punch-out address buffer, the edit mode is still set. To re-specify the punch-out point, turn on the edit mode switch 5-1 to end the edit mode once, then turn on the edit mode switch 5-1 again to shift to the edit mode state, and then perform punching. It can be specified again by operating the out switch 5-6. If the desired correction section is, for example, the section (50H to D0H) that has just been specified, this flow is terminated, and the process proceeds to an edit operation process for performing the actual correction.

FIG. 5 is a flow chart of the edit processing of the CPU 1 in the automatic performance apparatus according to the present embodiment. This flow chart shows that the edit mode switch 5-1 shown in FIG.
4 (permission means) is turned on to start an actual correction operation (step T1). Subsequently, in step T2, the capacity A obtained by the formula of (punch-out address)-(punch-in address) = A based on the address saved earlier is secured in the edit buffer.
{Start address of the edit buffer (fixed address of 000H)} + A = End address of the edit buffer obtained by the equation of the end address of the edit buffer, whereby the desired correction section is set in the edit buffer as the correction storage means. Is set in advance.

Then, the sequence data (key press information) to be corrected corresponding to the correction section is automatically transferred and stored as it is in the correction section set in the edit buffer. At this time, if the punch-in point and the punch-out point are specified with a margin of about one bar from the necessary correction section, the break of the sequence data delimited by the punch-in and punch-out will be the key press information. Regardless of the location above, a later correction work can be easily performed. Subsequently, after a one-measure, for example, four-beat count guide has been entered, correction is performed, and correction key press information (correction performance information) by a new key press operation for correction is set first. The data is written to the edit section of the edit buffer. Then, in step T4, it is checked whether or not the edit buffer address has become equal to the edit buffer end address, and if NO, it is necessary to continue writing the modified key press information in the edit buffer. In step T5, the writing of the corrected key press information is continued by the key press operation.

If the edit buffer address = the edit buffer end address becomes YES, the writing of the corrected key press information becomes equal to the set capacity and it is impossible to write the corrected key pressing information any more. The writing of the key press information to the edit buffer is terminated. In this manner, the corrected key press information having the same capacity as the key press information to be corrected has been written. If it is desired to edit again, the edit switch 5-4 may be turned on again. In step T7, it is checked whether or not the edit switch 5-4 has been turned on again. Returning to T2, the same processing operation for correction is performed.

If the answer is NO in step T7, it is checked in step T8 whether the edit mode switch 5-1 has been turned on. If the answer is NO, the process returns to step T7 to edit (correction) as many times as necessary. The work is repeated, but if YES, it means that the necessary editing work has been completed, so the process proceeds to the next step T9, where the corrected key press information written in the edit buffer is
After automatically transferring and storing the correction section of the sequence track designated by the previous punch-in operation and punch-out operation, the edit mode is ended. That is, the edit mode switch 5-1 stores the modified key press information in the RAM 4 when the necessary editing is completed.
And instructs the CPU 1 to perform a rewriting process for rewriting the original key press information by transferring the data to the sequence track, and functions as rewriting means together with the CPU 1.

C. As described above, in the automatic performance device according to the above-described embodiment, the actual key press information is stored in the sequence track in the RAM 4 serving as the storage means, stored in the sequence track, and the sequence track is reproduced and played. While performing the correction, the correction section to be corrected (edited) is designated by turning on the punch-in switch 5-3 and the punch-out switch 5-6, and the correction key press information in the correction section is the same as the key press information in the correction section. The modified key press information is written into the edit buffer, and the written modified key press information is transferred again to the modified section of the original sequence track.

Therefore, the editing mode setting operation and the actual editing operation can be performed separately and separately, so that the correction key press information is input at the same timing as the ON operation of the punch-in switch 5-3. It is not necessary to start a correction key press operation for correction, and it is possible to record correct key press information for correction without excess or shortage,
It is very easy to perform correction work, and furthermore, the correction work can be redone any number of times in the specified correction section regardless of other sections. Especially, a display device such as an LCD is provided to check the playback status of sequence data. It is possible to obtain an automatic performance apparatus which does not need to be performed, is low in cost and has a small shape, and is very easy to modify recorded data.

D. Modified Embodiment In the above embodiment, a storage area having the same capacity as the corrected key press information is provided in the edit buffer. However, the present invention is not limited to this. When the corrected key press information is transferred to the original sequence track, punch-out is performed. Subsequent key press information may be shifted back and forth. In this way, the performance information can be rewritten even when the amount of the corrected key press information is different from the amount of the original key press information. Further, in the above-described embodiment, the keyboard 3 as a key depressing means is built in the apparatus main body together with the CPU 1 and the like. However, the keyboard 3 may be separately provided outside and electrically connected to the CPU 1, The shape and structure of the keyboard 3 are not limited to the keyboard type of the musical instrument, but may be any type as long as an electric switch can be operated. Also,
Tone generator 7, D / A converter 8, amplifier 9, speaker 1
Zeros and the like may be provided outside the main body to be electrically connected to the main body. Further, the RAM 4 as a storage means and a correction storage means can be inserted and connected to the main body from outside.

In the above embodiment, a count guide of, for example, four beats is performed to notify the player of the start of correction just before the start of correction after turning on the edit switch 5-4. In other words, any device that can notify the player of the start of correction, such as an LED, may be used.

[0024]

According to the present invention, a desired correction section in the performance information can be designated during the reproduction of the performance information, so that the correction section can be specified while listening to the performance during the reproduction of the performance information. It is possible to easily specify a correct correction section.

[Brief description of the drawings]

FIG. 1 is an overall circuit configuration diagram of an embodiment of an automatic performance device according to the present invention.

FIG. 2 is a configuration diagram of a switch section and a display section of the automatic performance device of the embodiment.

FIG. 3 is a flowchart of an edit mode process of the automatic performance device of the embodiment.

FIG. 4 is RA as storage means of the automatic performance apparatus of the embodiment.
It is a memory state figure of M.

FIG. 5 is a flowchart of an edit mode process of the automatic performance device of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 CPU 3 Keyboard 4 RAM 5 Switch section 5-1 Edit mode switch 5-3 Punch-in switch 5-4 Edit switch 5-6 Punch-out switch

Claims (5)

(57) [Claims] 1. A storage device for storing performance information, a reading device for sequentially reading performance information from the storage device, a reproducing device for performing a reproduction performance based on the performance information read from the storage device, Means for specifying a correction section for the performance information read by the means; correction data input means for inputting correction data; and correction data information input by the correction data input means. Writing means for writing data in an area of the storage means corresponding to a designated correction section. 2. The automatic performance apparatus according to claim 1, wherein said correction data input means inputs performance information obtained by detecting a performance operation as correction data. 3. The automatic performance apparatus according to claim 1, further comprising a stop means for stopping the reproduction performance by said reproduction means when a correction end position is specified by said correction section specifying means. 4. The automatic performance device according to claim 2, further comprising a notification unit for notifying the start of the detection of the performance operation. 5. The automatic performance apparatus according to claim 4, wherein said notifying means performs notification by sound.