JPH0895564A - Automatic playing device - Google Patents

Abstract

PURPOSE: To specify a section required to be corrected section while listening performance while reproducing in an automatic performance device capable of revising stored performance information. CONSTITUTION: The performance information is read out from a sequence track of a RAM 4 successively, and reproducing performance is executed, and the correction section of the performance information is specified by a punch-in switch and a punch-out switch of a switch part 5 while reproducing. Then, the inputted corrected performance information is written in the specified correction section of the performance information. Thus, the section to be corrected is specified while listening the performance by the stored performance information while reproducing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device which corrects stored performance information and reproduces it.

[0002]

2. Description of the Related Art Conventionally, as disclosed in JP-A-64-4794, JP-A-58-46391 and JP-A-59-198499, the stored performance information is read out and played back. There is an automatic performance device that corrects stored performance information so that it can be played back. The correction of the performance information in this type of automatic performance device is performed by the following method. In Japanese Patent Laid-Open No. 64-4794, by designating 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, a performance data change condition is specified. The performance data for each predetermined length section belonging to the specified specific timing range is changed over a plurality of predetermined length sections according to the specified change condition.

In Japanese Patent Laid-Open No. 58-46391, a desired correction point is specified during reproduction of performance data and the position is stored, and when reproduction is performed again, reproduction is stopped at the beginning or end of the bar at the specified position. And fix it. In Japanese Patent Laid-Open No. 59-198499, the stored performance data is reproduced, and when a preset designated start position is reached, a storage mode is entered from that position and the performance data is stored by playing the keyboard.

[0004]

By the way, the above-mentioned conventional automatic performance apparatus has the following problems. (A) In Japanese Patent Laid-Open No. 64-4794, since the corrected section is specified without playing back the reproduction, it is not easy to specify the section. (B) In Japanese Patent Laid-Open No. 58-46391, the correction location can be specified only in units of measures, and the correction is done by one note, so that the correction takes time and is troublesome. (C) In JP-A-59-198499, it is not possible to specify the correction end position, so even if it is desired to correct only a short range, the performance must be repeated until the end. Note that this conventional example does not describe how to specify the correction start position.

Therefore, it is an object of the present invention to provide an automatic performance device capable of designating a section to be corrected while listening to a performance based on the stored performance information during reproduction.

[0006]

In order to achieve the above object, an automatic performance apparatus according to the invention as defined in claim 1 comprises a storage means for storing performance information, a reading means for sequentially reading the performance information from the storage means, and Reproduction means for performing reproduction performance based on the performance information read from the storage means, correction section designation means for designating 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 the area of the storage means corresponding to the correction section designated by the correction section designating means.

As a preferred mode, the correction data input means may input the performance information obtained by detecting the performance operation as the correction data, as in the invention described in claim 2, for example. For example, as in the third aspect of the invention, stop means may be provided to stop the reproduction performance by the reproduction means when the correction end position is specified by the correction section specification means. For example, as in the invention described in claim 4, an informing means for informing the start of the detection of the performance operation may be provided. For example, as in the invention according to claim 5, the notifying means may notify by sound.

[0008]

According to the present invention, the desired correction section in the performance information is specified by the correction section specification means during 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 necessary correction section can be easily specified.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 device according to the present invention. A. 1 is a general circuit diagram of an automatic performance device according to an embodiment of the present invention, which is a central processing unit C of a microprocessor.
The PU 1 controls the entire circuit of the embodiment based on a program of a ROM (Read Only Memory) 2 which is a program memory and a processing operation by a working memory (not shown), and pushes a keyboard 3 which is a key pressing means. The key-depression information (performance information) output by the key operation is received, and the key-depression information is stored in the RAM (random access memory) 4 which is a storage means. Further, the CPU 1 stores and corrects the key depression information by a designation operation of the switch section 5 composed of a plurality of switches, and the display section 6 displays the ON state of the switch of the switch section 5. It is composed of an LED (light emitting diode = light emitting diode). Further, the CPU 1 outputs the key depression information stored in the RAM 4 to the musical tone creating section 7 by operating the switch section 5, and the digital signal which is the musical tone signal output from the musical tone creating section 7 is output by the D / A converter 8. It is converted into an analog signal and is reported as a musical sound through the amplifier 9 and the speaker 10.

The switch section 5 and the display section 6 are, as shown in the switch section / display section configuration diagram shown in FIG. 2, an edit mode switch 5-1 and an edit mode LED 5-.
2, punch-in switch 5-3, edit switch 5
-4, an edit LED 5-5, and a punch-out switch 5-6.

B. Operation of the Embodiment FIG. 3 shows the CPU 1 in the automatic musical instrument according to this embodiment.
2 is a flow chart of the edit mode process of the edit mode switch 5-1 shown in FIG.
It is started when the switch operation to the edit mode is performed to edit (correct) the previously recorded key depression information by the ON operation of (step S1). In step S2, the key press information (sequence data) recorded on the sequence track, which is the storage means, is played back by the playback means such as the amplifier 9 and the speaker 10. Here, as shown in the RAM storage state diagram of FIG. 4, the sequence data is recorded in a predetermined sequence track in the RAM 4 which is a storage means. The sequence track is, for example, 1FFFH byte (H is 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 corrected section designating means is turned on during the reproduction (step S4). If so, the process returns to step S3 and the playback performance is continued as it is.
In the case of S, the position where 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.

Then, in step S6, the sequence data is further reproduced, and whether or not there is no sequence data to be reproduced, or the sequence data of the correction section to be corrected is transferred and stored as a correction storage means. It is checked whether or not the reproduction is performed by exceeding the memory capacity of the edit buffer (memory capacity is, for example, 100 Hbytes) in the RAM 4 as shown in FIG. Therefore, in the case of YES, there is no sequence data before the punch-out switch 5-6, which is the correction section designating means for designating the ending point of the correction section, is turned on, or more than the memory capacity of the edit buffer. In either case, the sequence data is continuously reproduced. In this case, in step S8, the address 50H previously saved in the punch-in address buffer is cleared to 0, and the sequence data reproduction is stopped to edit. End the mode once.
Therefore, in this case, it is necessary to redo the operation so as to set the correction section within a range that does not exceed the capacity of the edit buffer.

If NO in step S7, it is checked in the next step S9 whether or not the punch-out switch 5-6 is turned on. If NO in step S7, the correction section for correcting the sequence data is still in effect. Since the end point is not specified, the process returns to step S6 and the sequence data is further reproduced. If yes,
Since the end point of the correction section is designated and the desired correction section is designated, the address of the sequence track at the time of the designated operation, for example, the address D0H shown in FIG. After saving in the buffer, the reproduction means is instructed to stop the reproduction of 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 location, turn on the edit mode switch 5-1 to end the edit mode once, and then turn on the edit mode switch 5-1 again to shift to the edit mode state and then punch. It can be designated again by operating the out switch 5-6. If the desired correction section is, for example, the section (50H to D0H) as just specified, this flow is ended and the edit operation process for actual correction is performed next.

FIG. 5 is a flow chart of the edit process of the CPU 1 in the automatic musical instrument according to this embodiment. This flow is shown when the edit mode switch 5-1 shown in FIG.
4 (permission means) is turned on to start the actual correction work (step T1). Subsequently, in step T2, the capacity A calculated by the formula (punch-out address)-(punch-in address) = A based on the address previously saved is secured in the edit buffer,
The start address of the edit buffer (fixed address of 000H) + A = end address of the edit buffer is set to the end address of the edit buffer, whereby the desired correction section is the edit buffer serving as the correction storage means. Has been set in advance.

Then, the sequence data (key depression information) to be corrected corresponding to the correction section is automatically transferred to the correction section set in the edit buffer and stored as it is. At this time, if the punch-in point and the punch-out point are specified with a margin of about one measure from the necessary correction section, the delimiter of the sequence data divided by the punch-in and punch-out is key-press information. It becomes easy to carry out the subsequent correction work at any position above. Then, after the count guide of one bar, for example, four beats is entered, the correction is to be executed, and the correction key pressing information (correction performance information) by a new key pressing operation for correction is set first. It is written in the modified section of the edit buffer. Then, in step T4, it is checked whether or not the edit buffer address is equal to the edit buffer end address, and if NO, it means that the writing of the modified key depression information has to be continued in the edit buffer. At step T5, the writing of the modified key depression information is continued by the key depression operation.

When the edit buffer address = the edit buffer end address is YES, the writing of the modified key-depressing information becomes equal to the set capacity, and the capacity cannot be exceeded. Therefore, the guide count is stopped and the modification is performed. Finish writing the key depression information to the edit buffer. In this way, the correction key pressing information to be corrected and having the same capacity as the key pressing information is written. Further, if it is desired to edit again, it is sufficient to turn on the edit switch 5-4 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 NO in step T7, it is checked in step T8 whether or not the edit mode switch 5-1 is turned on. If NO in step T7, the process returns to step T7 to edit (correct) as many times as necessary. ) The work is repeated, but if YES, it means that the necessary edit work has been completed. Therefore, the procedure advances to the next step T9, and the correction key depression information written in the edit buffer is
The edit mode is terminated after the correction section of the sequence track designated by the punch-in operation and punch-out operation is automatically transferred and stored. That is, the edit mode switch 5-1 outputs the modified key depression information to the RAM 4 when the necessary edit is completed.
The CPU 1 instructs the CPU 1 to perform a rewriting process for rewriting the original key depression information by transferring it to the sequence track, and functions as a rewriting unit together with the CPU 1.

C. Effects of Embodiments As described above, in the automatic musical performance apparatus according to the above-described embodiments, the actual key depression information is stored in the sequence track in the RAM 4 which is the storage means, is stored in the sequence track, and the sequence track is reproduced. While specifying the correction section to be modified (edited) by turning on the punch-in switch 5-3 and the punch-out switch 5-6, the correction key-pressing information in the correction section has the same capacity as the key-pressing information in the correction section. The modified key depression information is written in the edit buffer and transferred again to the modified section of the original sequence track.

Therefore, since the edit mode setting operation and the actual edit operation can be performed separately as separate operations, the correction key depression information is input at the same timing as the punch-in switch 5-3 is turned on. It is not necessary to start the correction key pressing operation for
The correction work is very easy to perform, and since the correction work can be repeated over and over again in the designated correction section regardless of other sections, a display device such as an LCD is installed to check the sequence data playback status. Therefore, it is possible to obtain an automatic performance device that is very easy to modify the recorded data, which is low in cost and requires a small shape.

D. Modified Embodiment In the above embodiment, the edit buffer is provided with a storage area having the same capacity as the correction key pressing information, but the present invention is not limited to this, and when the correction key pressing information is transferred to the original sequence track, punch-out is performed. Subsequent key depression information may be shifted back and forth. In this way, the performance information can be rewritten even when the amount of the modified key depression information is different from the original amount of key depression information. Further, in the above embodiment, the keyboard 3 as the key pressing means is built in the apparatus main body together with the CPU 1 and the like, but 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 musical instruments, and may be any as long as it can be operated electrically. Also,
Musical sound creation unit 7, D / A converter 8, amplifier 9, speaker 1
0 and the like may be provided outside the main body and electrically connected to the main body. Further, the RAM 4 as the storage means and the correction storage means may be externally inserted / connected to the main body.

Further, in the above-mentioned embodiment, immediately before the start of the correction after turning on the edit switch 5-4, for example, a count guide of 4 beats is performed to notify the player of the start of the correction, but it is limited to the count guide. In essence, it is possible to use a visual display such as an LED as long as the player can be notified of the start of correction.

[0024]

According to the present invention, the desired correction section in the performance information can be specified during the reproduction of the performance information. Therefore, 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 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 unit and a display unit of the automatic musical instrument of the embodiment.

FIG. 3 is an edit mode process flowchart of the automatic musical instrument of the embodiment.

FIG. 4 is a storage means RA of the automatic musical instrument of the embodiment.
It is a memory | storage state figure of M.

FIG. 5 is a flow chart of edit mode processing of the automatic musical instrument of the embodiment.

[Explanation of symbols]

 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)

[Claims] 1. A storage means for storing performance information, a reading means for sequentially reading the performance information from the storage means, a reproduction means for performing a reproduction performance based on the performance information read out from the storage means, and the reading means. Correction section specifying means for specifying a correction section for the performance information read by the means, correction data inputting means for inputting correction data, and correction data information input by the correction data inputting means by the correction section specifying means. An automatic performance device, comprising: writing means for writing in an area of the storage means corresponding to a designated correction section. 2. The automatic performance device according to claim 1, wherein the 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 stop means for stopping the reproduction performance by the reproduction means when the correction end position is designated by the correction section designation means. 4. The automatic performance device according to claim 2, further comprising an informing unit for informing the start of the detection of the performance operation. 5. The automatic musical instrument according to claim 4, wherein the notifying means gives a notification by sound.