JPH08202367A - Electronic musical instrument - Google Patents

Abstract

(57) [Summary] [Purpose] In an electronic musical instrument with a cycle recording function,
An object of the present invention is to provide an electronic musical instrument in which sequencer playback does not stop for a moment due to the peak of data insert processing by keyboard recording even when there is a large amount of data in the cycle section. [Structure] First memory 17 and second memory 18
Read control unit 12, write control unit 13, connection between the first memory 17 and the read control unit 12 or the write control unit 13, and the second memory 18 and the read control unit 12 or the write An electronic musical instrument comprising a memory switching section 16 for switching the connection of the control section 13 and cycle end information output from the read control section 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument having a cycle recording function capable of repeatedly recording a specific section of a piece of music.

[0002]

2. Description of the Related Art In recent years, electronic musical instruments having a high performance recording / playback function have been developed. Especially with regard to the recording function, the cycle recording method was initially used to divide a song into specific sections (for example, 1 to 5 bars, 6 to 10 bars, etc.) and repeatedly record each section to complete one song. It has been adopted by professional equipment and has become popular in recent years.

A conventional electronic musical instrument will be described below.
FIG. 4 is a block diagram of a conventional electronic musical instrument. FIG.
, 31 is a keyboard section, 32 is a data insert control section, 33 is a read control section, 34 is a write control section, 3
Reference numeral 5 is a speaker and 36 is a memory.

The operation of the electronic musical instrument constructed as above will be described below. First, in the cycle recording state, when the keyboard is not playing (recording), the memory 36 in which the sequence data is stored.
To sequencer information of a specific section (for example, from 1 bar to 5 bars) are sequentially read out in a time series by the read control unit 33 and sounded by the speaker 35. Further, when the keyboard is played and keyboard trigger information is output from the keyboard section 31, sequencer data (song data) is stored in the memory 36, and sequencer read-out information (for example, 1 to 5 bars) of a specific section is output. It is read by the read control unit 33. In the data insert control unit 32, the keyboard information output from the keyboard unit 31 is inserted into the sequencer read information of the specific section and written in the memory 36 through the write control unit 34. In this way, new keyboard information is added to the sequencer data each time a keyboard is input. When re-recording the performance data of a specific section from the beginning, a clear button (not shown) is used to clear all the data of the specific section.

A more detailed description will be given with reference to FIG. FIG. 5A shows a specific section (time 1 to before data insertion).
The contents of memory 36 at time Y) are illustrated. Performance data 1 at time 1, performance data 2 at time 2, ..., Time X
Is performance data 9999, and time Y is performance data 100
00 is stored. From this state, time 1 '(time 1
When performance data 1'is played from the keyboard at ≤ time 1'≤ time 2), the data from performance data 2 to performance data 10000 are shifted backward, and performance data 1'is inserted at time 1 '. (FIG.5 (b)).

[0006]

However, in the above-mentioned conventional configuration, when a large amount of performance data stored from time 2 to time Y is included as in the above-mentioned example, performance data 2 to performance data are included. There has been a problem that it takes a long time to shift the data up to 10000 (the processing peak is large) and the sequencer reproduction seems to be stopped for a moment.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an electronic musical instrument in which sequencer reproduction does not stop due to a data insert generated by keyboard recording even when there is a large amount of data in a specific section. .

[0008]

To achieve this object, an electronic musical instrument of the present invention comprises a memory 1, a memory 2 and
Read control unit, write control unit, and the memory 1
And a connection between the read control unit or the write control unit, a memory switching unit for switching the connection between the memory 2 and the read control unit or the write control unit, and a cycle end information output from the read control unit. are doing.

[0009]

With this configuration, the data of the read-only memory (for example, the memory 1) and the data of the keyboard performance are always written in the write-only memory (for example, the memory 2) during cycle recording, so that there is no processing peak due to the data shift and the sequencer It is possible to realize an electronic musical instrument that has a cycle recording function that prevents playback from stopping for a moment.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, 11 is a keyboard section, 12 is a read control section, 13 is a write control section, 14 is a speaker,
Reference numeral 15 is cycle end information, 16 is a memory switching unit, 17 is memory 1, and 18 is memory 2.

The operation of the electronic musical instrument constructed as above will be described with reference to FIG. First, (1) the memory switching unit 16 (a-1) and (b-
When 1) is on and (a-2) and (b-2) are off.

(When the memory 1 is used for reproduction and the memory 2 is used as a memory for recording) When a cycle recording section is set (a setting device is not shown) and cycle recording is started, it is stored in the memory 1 in advance. The sequencer read (automatic performance) information is read from the read control unit 12 through the memory switching unit 16 in time series and input to the write control unit 13 as it is. At the same time, keyboard information is output from the keyboard section 11 and input to the write control section 13. Further, the output of the write control unit 13 is written in the memory 2 through the memory switching unit 16. That is, the contents of the memory 1 are read by the read control unit 12
Is reproduced and written in the memory 2, and if there is keyboard information at this time, the keyboard information is also written in the memory 2 at the same time. Also, when re-recording the performance data in a specific section from the beginning, all data in a specific range can be cleared by using a clear button (not shown). This will be described in more detail with reference to FIG. Figure 2 (a)
Indicates the contents of the memory 1. That is, performance data 1 is stored at time 1, performance data 2 at time 2, ..., Performance data 9999 at time X, and performance data 10000 at time Y. Now, the cycle section is set to time 1 to time Y, and the reproduction time counter (not shown) repeatedly counts time 1, time 2, ..., Time Y, time 1, time 2 ,. I do. The contents of the memory 1 are repeatedly read from the read control unit 12 of FIG. 1 in synchronization with this counter, and are written in the memory 2 by the write control unit 13. FIG. 2 (b) shows the contents of the memory 2 at time 1 '. At time 1 ', keyboard information is input from the keyboard section 11 to the write control section 13 and written in the memory 2. 2C shows the contents of the memory 2 at time 2. The performance data 2 written at the time 2 is read from the memory 1 at the time 2 and stored in the memory 2
The performance data written in. Moreover, at time Y, FIG.
As shown in (d), all the contents of the memory 1 are copied to the memory 2, and the performance data 1'played on the keyboard at the time 1'is written between the time 1 and the time 2.

When the time reaches Y + 1, the read controller 12
Outputs the cycle end information to the memory switching unit 16. As a result, the memory switching unit 16 changes the connections between the memory 1, the memory 2, the read control unit 12, and the write control unit 13 as follows.

(2) In the memory switching section 16, (a-
1) and (b-1) are off, and (a-2) and (b-2) are on.

(When the memory 1 is used for recording and the memory 2 is used as a memory for reproduction) In this case, the roles of the memory 1 and the memory 2 may be reversed in the explanation of the above (1). The contents of the memories 1 and 2 at this time are shown in FIG.

In this manner, the cycle end information is output from the read control unit 12 to the memory switching unit 16 at every specific time (Y-1) to reverse the roles of the memory 1 and the memory 2, and during that time. The played keyboard information is written to memory. In the memory switching unit 16, (a-1) and (b-1) are both on (b
-1) and (b-2) are both off (a-1) and (b-
There are only two cases where 1) is both off and (b-1) and (b-2) are both on.

[0018]

As described above, according to the present invention, the memory 1 and
A memory 2, a read controller, a write controller,
A memory switching unit for switching the connection between the memory 1 and the read control unit or the write control unit, a connection between the memory 2 and the read control unit or the write control unit, and cycle end information output from the read control unit. By providing the above, it is possible to realize an electronic musical instrument in which sequencer reproduction does not stop for a moment due to data insertion by keyboard recording even when there is a large amount of data in the cycle section.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electronic musical instrument according to an embodiment of the present invention.

FIG. 2 is a diagram showing the contents of a memory for explaining the operation of the electronic musical instrument in the embodiment of the invention.

FIG. 3 is a diagram showing the contents of the memory.

FIG. 4 is a block diagram of a conventional electronic musical instrument.

FIG. 5 is a content diagram of a memory for explaining the operation of the conventional electronic musical instrument.

[Explanation of symbols]

 11 keyboard section 12 read control section 13 write control section 14 speaker 15 cycle end information 16 memory switching section 17 memory 1 18 memory 2

Claims (1)

[Claims] 1. A first memory, a second memory,
A memory switching unit that switches between a read control unit, a write control unit, a connection between the first memory and the read control unit or the write control unit, and a connection between the second memory and the read control unit or the write control unit. An electronic musical instrument comprising: and cycle end information output from the read control unit.