JPH1138969A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing device capable of easily obtaining desired musical sound information when the stored musical sound information is read out and musical sound is reproduced. SOLUTION: A loop section consisting of plural measures is set by a panel 16, the playing data obtained by repeating playing in the loop section is stored in a RAM 12. When favorite playing data is obtained, the next loop section is specified by the panel 16, playing data by repeating playing in the loop section is successively stored in a RAM 12. Thus, playing data by repeating playing for each of plural loop sections is stored, when music is reproduced, favorite playing data is selected out of the playing data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus for storing musical tone information, reading the stored musical tone information and reproducing a musical tone.

[0002]

2. Description of the Related Art Conventionally, there has been known an automatic performance apparatus having a real-time loop recording method for designating a section of a music piece and recording performance data generated by repeatedly performing the specified section. This real-time loop recording method is roughly classified into two types. The first method is an overdubbing method in which performance data recorded by a previous performance is recorded on performance data recorded by a previous performance. The first method is suitable for creating, for example, a drum pattern (performance data of a drum part). For example, first, a bass drum pattern is input, and then a hi-hat pattern is input while being superimposed on the bass drum pattern. In this way, it is possible to easily create a drum pattern by superimposing and recording performance data one after another.

[0003] The second method is an overwrite recording method in which, when recording performance data of a current performance, performance data already recorded by a previous performance is canceled and only performance data of the current performance is recorded. is there. The second method is suitable, for example, when recording performance data of a phrase, and repeatedly recording the performance data of the phrase until a player obtains desired performance data.

[0004]

However, in the overdubbing method, which is the first method, the performance data is recorded one after another in the repetitive performance of the designated section. If the recorded bass drum pattern is not the desired pattern for the performer and you want to change this bass drum pattern to another bass drum pattern, cancel the recording state and erase the bass drum pattern recorded by the previous performance Then, it is necessary to make a recording state again and record another bass drum pattern. This has to be repeated until the player obtains the desired performance data.

In the second method, the overwrite recording method, even if the performance data of the previous performance is the desired performance data, the performance data is canceled.
It is necessary to re-record the performance data of the previous performance. In view of the above circumstances, it is an object of the present invention to provide a recording / reproducing apparatus in which musical tone information is stored, and in which the stored musical tone information is read out to reproduce a musical tone, desired musical tone information can be easily obtained. .

[0006]

According to the present invention, there is provided a recording and reproducing apparatus for storing musical tone information, reading out the stored musical tone information and reproducing a musical tone. Tone information input means for sequentially inputting information (2) Tone information storage means for storing the tone information input by the tone information input means at the time of recording (3) A plurality of loop sections on a time axis representing progress of time (4) Loop information storage means for storing information of a plurality of loop sections specified by the loop section specification means (5) Stored in the storage means based on the information in the loop information storage means Selecting means for selecting the tone information to be reproduced for each loop section with respect to the tone information of the same loop section among the tone information; Characterized in that it only play the sound information.

According to the present invention, for a predetermined loop section designated on a time axis representing the progress of music performance, input musical tone information is stored with time information representing a time on the time axis. When the time to be given to the input musical sound information reaches the end point of the loop section, the time is returned to the start point of the loop section and stored as a musical sound information string, so that the musical sound information in the same loop section can be repeatedly stored. If the time to be added to the input musical tone information reaches the end point of the loop section before the release when the specified loop section is released, the time is advanced to a time earlier than the end point. Since the information is stored as an information sequence, the tone information in the next loop section can be repeatedly stored. Therefore, desired tone information can be easily selected from the tone information in these loop sections, and if the performance data recorded in the previous performance is not the desired performance data, as in the overdubbing method, another desired tone data is obtained again. The trouble of recording the performance data or the trouble of re-recording the desired performance data recorded in the previous performance as in the overwrite recording method is reduced, and the desired music can be easily created.

Further, since the tone information to be reproduced can be selected from the tone information in the same loop section when the tone information is reproduced, it is possible to compare the tone information with other tone information repeatedly recorded in the same loop section. When music information is stored in a state where a certain loop section is designated by the loop section designating means, there is provided a loop section canceling instruction means for instructing cancellation of the specification of the loop section. It is effective that the next loop section can be designated by the loop section designating means because the designation of the loop section is canceled by the canceling instruction means.

A detecting means for detecting that the current time has reached the end point of the loop section when the loop section is specified by the loop section specifying means; and a detecting means for detecting the end point of the loop section by the detecting means. It is preferable to store the tone information input to the storage unit and the tone information input after the end point is detected in the storage unit as independent tone information for the loop section.

Further, the storage means stores the tone information input by the tone information input means with timing information indicating the timing on the time axis at which the tone information was input, Detecting means for detecting that the timing information indicating the current time reaches the end point of the loop section; updating the time information indicating the timing on the time axis as time progresses; When a section is specified, it is preferable that the apparatus further comprises timing information updating means for updating the timing information to the timing of the start point of the loop section due to the end point detecting means reaching the end point of the loop section. It is.

[0011] Further, a display means capable of displaying musical tone information on a screen in characters or figures, and based on the loop information stored in the loop information storing means, musical tone information is arranged and displayed on a time axis. When the tone information having the same loop section is displayed at a position orthogonal to the time axis direction, and the display mode of the tone information sequence selected by the tone information sequence selecting means is different from the display mode of the tone sequence not selected. And a display control means for performing display.

By providing such display means and display control means, the same tone information in the loop section is vertically arranged, and the display form of the selected tone information is displayed differently from the others, so that At a glance, it is possible to grasp at a glance how many pieces of music information exist in the loop section and which piece of music information is selected.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an automatic performance device will be described below. FIG. 1 is a block diagram of an automatic performance device according to one embodiment of the present invention. The CPU 11 shown in FIG. 1 reads out a program stored in the ROM 13 via the data bus 19 and executes necessary processing.

The RAM 12 has a keyboard 14 and an MI (to be described later).
A performance data memory or the like for storing performance data from the DI interface 15 is provided. ROM1
3 stores a program for controlling the entire automatic performance apparatus shown in FIG. The keyboard 14 generates performance data when the player performs a performance operation.

The MIDI interface 15 is a keyboard 1
The performance data generated by the operation 4 is output to an external device, or the performance data from the external device is input. The input performance data is stored in the RAM 12 or sent to the sound source 18. The panel 16 is provided with buttons and the like operated for recording and reproducing performance data, and a display for displaying performance data and the like.

The timer 17 interrupts the CPU 11 at a cycle set by a predetermined value, and executes a timer interrupt routine described later. The timer 17 is set so that an interrupt signal (clock) is generated 192 times within a performance time of one measure. For example, if “performance speed” = 120, the frequency f of the timer 17 is 96 Hz ( (120 × 1
92/4) / 60... In the case of 4 beats).

The tone generator 18 converts the sent performance data into a tone signal and outputs it. The tone signal output from the sound source 18 is emitted to the space as a tone via an amplifier and a speaker (not shown). FIG. 2 is a diagram showing the panel shown in FIG. The panel 16 shown in FIG. 2 includes a "play speed selection button" 21, a "beat length selection button" 22, a mode button 23, a start button 24, and a stop button 2.
5, loop start button 26, loop end button 2
7, a cursor key 28, an enter button 29, and a display device 30 are provided.

The performance speed selection button 21 is used to select the performance speed, and four types of performance speeds (15
0, 120, etc.). The beat length selection button 22 is used to set the length of the beat of the metronome sound emitted in the recording mode, and has four types of beat lengths (48 (192/4 = 4 beats)). , 64 (192/3 = 3 beats), etc.). For example, when the button corresponding to the beat length 48 is selected, the time becomes 4/4, and the sound is pronounced as "chine, ka, ka, ka" during recording.

The mode button 23 is for alternately switching between the recording mode and the reproduction mode. For example, when the recording mode is set, the mode is switched to the reproduction mode, and when the mode is set to the reproduction mode, the mode is switched to the recording mode. .
The start button 24 functions as a button for instructing start of recording in the recording mode, and functions as a button for instructing start of reproduction of performance data in the reproduction mode. When the start button 24 is pressed, the timer 17 is initialized to start counting for interruption, and a section for repeated performance (hereinafter referred to as a loop section. Is designated on the time axis representing the progress of the performance of the first measure. In the present embodiment, the beginning of the first measure is set to the start time (loop start time). .

The stop button 25 is used to stop recording or reproduction or stop counting by the timer 17. Loop start button 26
Functions as a button for designating the start time of the loop section in the recording mode, and when the loop start button 26 is pressed, the next loop section different from the currently played loop section is operated. Functions as a button for designating the beginning of the first measure as the loop start time (the first loop start time is set to the beginning of the first measure by the start button 24), and in the playback mode, the loop start button 26 Functions as a button for repeatedly playing the loop section that is being played when pressed.

In the recording mode, the loop end button 27 functions as a button for designating the end time (loop end time) of the loop section, and the last bar at the time when the loop end button 27 is pressed is set to the loop end. Set to end time. The last time of this bar is
It is obtained by the following calculation when the loop end button 27 is pressed. The elapsed time from the beginning of the performance data to the present is defined as the current time t.

The last time of a bar = 192 (1+ [t / 192]) − 1 Here, [] is a Gaussian symbol, and the content of [] is converted to an integer. On the other hand, in the playback mode, the loop end button 27 functions as a button for releasing the loop playback for repeatedly playing the performance data in the same loop section.

The cursor key 28 has an up / down key and a left / right key. As will be described later in detail, one performance data string is selected from a plurality of performance data strings for one loop section for musical tone reproduction. Operated to The enter button 29 is used to delete other performance data strings other than the one performance data string selected by the cursor key 28 among a plurality of performance data strings for one loop section selected by the cursor key 28. Button. As a result, only desired performance data remains, and a desired music piece is created based on these performance data.

In this embodiment, although details will be described later, first, a loop section composed of a plurality of measures from the loop start time designated by the start button 24 to the loop end time designated by the loop end button 27 is repeatedly performed. Then, the performance data of the repeated performance is sequentially recorded. For example, when desired performance data is obtained, a loop start time of a new loop section is designated by a loop start button 26, and a loop end time is designated by a loop end button 27. , And play the new loop section repeatedly to record performance data.For example, perform the performance repeatedly for each of the multiple loop sections, record the performance data from these repeated performances, and create a song. Of the recorded performance data From one in which the selection of the desired performance data. Here, the loop section designating means according to the present invention includes a start button 24 for designating a loop start time (only at the very beginning of recording), a loop start button 26, and a loop end button 27 for designating a loop end time. That means. Further, the musical sound information according to the present invention may be an audio signal or a voice signal itself, or may be information for controlling a sound source.

FIG. 3 is a diagram showing a display device of the panel shown in FIG. The display device 30 shown in FIG. 3 includes a character “PLAY” indicating a playback mode and a character “R” indicating a recording mode.
EC "is shown. The position of the character "PLAY" or the character "REC" is operated by operating the mode button 23.
The cursor 31 for mode display which alternately moves to the position of is shown. In FIG. 3, the cursor 31 for mode display has moved to the position of the character "PLAY", thereby displaying that the current mode is the reproduction mode.

The display device 30 has a three-stage performance data string 32 generated by performing repetitive performances three times in one loop section, and another loop section having a performance start time different from the repetitive performance. Is a two-stage performance data string 3 generated by performing the performance twice
3 is displayed. Of the performance data strings 32 and 33, one performance data string selected by the cursor key 28 is highlighted (the hatched portion shown in FIG. 3). Further, a cursor 34 for displaying a performance position indicating the position of the performance data currently reproduced (performed) is also displayed.

FIG. 4 shows a temporary memory provided in the RAM 12 and used during recording and reproduction. In this embodiment, the timer interrupt from the timer 17 shown in FIG. 1 is performed 192 times within one bar. In this temporary memory, in order to manage measures, a time T (hereinafter, referred to as a time T within one measure) indicating a position of one measure divided into 192 by a timer interrupt is described. The time T is cleared every bar). Also stored is a time t (hereinafter referred to as a current time t) indicating a performance progress position from the head time of the music to the current time counted from the beginning time of the music. Further, a loop start time L_START_ indicating the start time of the loop section
TIME and a loop end time L_END_TIME indicating the end time of the loop section are also stored. Also,
Loop start address L_STAR indicating the address specified by the reproduction pointer for reading the performance data
T_AD is also stored. Also, a loop number L_NUMBER indicating the number of times the loop section is repeatedly recorded is stored.

FIG. 5 is a diagram showing a loop data table provided in the RAM for storing and reading information of each of a plurality of loop sections. This loop data table stores information on a loop section during recording. From this loop data table, information on the loop section being reproduced is read. Note that T
The column labeled IME (time) stores the number of clocks of the timer 17 corresponding to all times.

Each of the numbers 1, 2, 3,... At the left end shown in FIG.
Is attached to each performance in each loop section. The start address of the loop section is stored in the loop start address L_START_AD. The loop start time L_START_TIME stores the start time of the loop section. Further, the end time of the loop section is stored in the loop end time L_END_TIME. In the loop number L_NUMBER, the number indicating the number of performances in the same loop section (repetitive performances having the same performance start time) is stored.
In the selection flag, a flag indicating whether or not the performance data of the loop section has been selected (1 if selected, 0 if not selected) is stored.

When recording performance data by repeating performances, the loop data table numbers 1, 2, 3,.
Of the above, the various types of information described above are stored at positions corresponding to the numbers indicated by the table pointers, and the table pointer is incremented by one at the end of each loop section. Thus, the above-described various information is sequentially stored in the loop data table. On the other hand, when the performance data is reproduced, the movement of the reproduction pointer indicating the number of the position corresponding to the loop section to be reproduced in the loop data table is controlled, whereby the loop corresponding to the number indicated by the reproduction pointer is performed. Information on the section is read out, and the performance data is reproduced based on this information.

FIG. 6 is a diagram showing a performance data memory provided in the RAM for recording performance data. When recording the performance data, addresses 0, 1, 2,... Shown in FIG. 6 of the performance data memory are designated by the recording pointer, and the performance data from the keyboard or the MIDI interface and the performance data are transmitted to the designated address. The current time t at the time of the selection is stored in the performance data memory.

Next, a procedure for recording performance data and reproducing desired performance data based on the recorded performance data will be described in bullets with reference to FIGS. FIG. 7 is a diagram showing a first half of a procedure for recording performance data and reproducing desired performance data based on the recorded performance data, and FIG. 8 is a diagram showing a second half of the procedure shown in FIG. .

1. Press the mode button to enter the recording mode. 2. Press the start button. The timer is initialized by inserting “0” into the time T and the current time t in one measure, and the temporary memory and the loop data table are initialized. The initialization of the temporary memory is performed at the time T in the measure, the current time t, the loop start time L_ST.
ART_TIME, loop end time L_END_T
"0" is stored in each IME, and the loop number L_
This is a process in which "1" is stored in NUMBER and the start address of the performance data memory is set in the loop start address L_START_AD. Loop end time L_E
The state in which “0” is stored in ND_TIME indicates a state in which the loop end time has not been set. To initialize the loop data table, the table pointer is moved to the top of the table, and the loop start address L_STA
RT_AD, loop start time L_START_T
"0" is stored in each IME, and the loop number L_
This is a process of storing “1” in the NUMBER and the selection flag. Next, the timer is started, the metronome is sounded, and the recording of performance data from the keyboard or MIDI interface is started. Further, as shown in FIG. 7 (b), the performance data of the bars A, B, C and the like currently being played are sequentially recorded. The metronome sound at this time is not recorded.

3. Press the loop end button. Here, it is assumed that the button is pressed in the middle of the fourth measure D from the top as shown in FIG. 7B. Then, the last time of the measure D currently being played is set as the loop end time L_END_TIME of the temporary memory. At this time, there is no change in the loop data table. Thereby, the end of the loop section is set.

4. As shown in FIG.
Is the loop end time L_END_TIME set in the temporary memory, the loop end time L_END_
TIME is stored, and the loop number L_NUMBER of the temporary memory is incremented. Also, the table pointer is updated. Further, as shown in FIG. 7D, the current time t returns to the loop start time L_START_TIME of the temporary memory.

5. Then, the current address of the recording pointer is stored in the loop start address L_START_AD of the loop data table, and the loop start time L_START_TIME and the loop number L_NUMBER of the temporary memory are stored in the corresponding locations of the loop data memory, respectively.
“0” is stored in _END_TIME, “1” is stored in the selection flag of the table indicated by the table pointer, and “0” is stored in all the selection flags of the same loop section.

6. If there is no button operation on the panel, the above-mentioned processes 4 and 5 are repeated, and a plurality of performance data having the same loop section (loop start time L_START_TIME, loop end time L_END_TIME) are recorded. 7. As shown in FIG. 7E, when performance data (here, performance data of a loop section composed of measures E, F, G, and H) that is satisfactory to the player is input, the loop start button is pressed. Then, the first time of the measure M next to the fourth measure (L) of the loop section which has been repeatedly set and set to the loop end time L_END_TIME is the loop start time L_S of the temporary memory.
Stored in TART_TIME, the loop end time L_END_TIME of the temporary memory is the loop end time L_END_TIME of the loop data table.
And the loop end time L_END_TIME of the temporary memory is cleared.

8. Further, the above processes 3 to 7 are performed, and the performance data of the new loop section is recorded as shown in FIGS. 7 (f) and 7 (g). 9. If the stop button is pressed, the recording mode ends and the mode switches to the playback mode. 10. When the mode is switched to the reproduction mode, the loop data table is referred to, and thereby the performance data is displayed on the display device 30. FIG. 8 (h) shows a part of the screen of the display device 30, in which performance data strings R11, R12, R13 is displayed in the vertical direction in the figure. Similarly, performance data strings R21, R22, R23 composed of performance data from the 9th bar to the 16th bar,
Performance data strings R31 and R32 composed of performance data from bars 17 to 20 and bars 28 from bar 21
A performance data string R41 composed of performance data up to the measure;
R42, R43, and R44 are also displayed. Here, the performance data sequences R13, R
23, R32, and R44 are tentatively selected (temporarily selected), and are highlighted on the screen (shaded area). Further, a cursor 34 for displaying a performance position and a cursor 71 for selecting one performance data string are shown.

11. In the playback mode, when the start button is pressed, the line in which the selection flag of the loop data table stores "1" is referred to for each loop section, and the performance data corresponding to the loop start address of the line is read. It has become. Therefore, at this time, the performance data strings R13, R23, R
Only 32 and R44 are continuously reproduced.

12. If the user does not like the performance data of the tentatively selected performance data string, the cursor 71 is moved up and down or left and right in the figure with the up and down keys or the left and right keys of the cursor keys 28 to select a desired performance data string. Thus, for example, as shown in FIG. 8 (i), performance data strings R13, R22,
Select R32 and R42. The movement of the cursor 71 by the cursor key 81 can be performed even when the recording of the performance data is stopped or during the reproduction of the performance data. However, if the performance data of the performance data string before the movement is currently being played when the cursor 71 is moved with the up / down key of the cursor keys 28, the performance data of the performance data string is set to the loop end time L_END_T.
After the IME, the performance data sequence indicated by the cursor 71 is provisionally selected.

13. When performing a loop performance in which the performance data of the performance data string currently being played is repeatedly performed, a loop start button is pressed. This loop performance is released by pressing the loop end button. 14． By repeating the above operations 12 and 13,
It is possible to sufficiently examine whether or not the performance data of the provisionally selected performance data sequence is satisfactory. If you are satisfied, press the decision button. Then, as shown in FIG. 8 (j), the performance data string (here, R13, R
22, R32, R42) are deleted.

Having roughly described above, the correspondence between the claims of the present application and the present embodiment will be clarified.
Each component in claim 1 corresponds as follows. Music information input means: MIDI interface 15 Music information storage means: Performance data memory (RAM) Loop section: Loop start time L_START_TIME and loop end time L of loop data memory
_END_TIME Loop section specifying means: loop start button and loop end button selecting means: selecting means for selecting performance data at the time of reproduction is the cursor key 28, and selecting means for selecting performance data at the time of recording are a CPU and a program. (The CPU selects the last performance data string played in each loop section according to the program. The selection flag is controlled by the cursor key 28 or the CPU to determine the performance data string selected by the selection flag. Means for reproducing only the musical tone information selected by the selection means: CPU, program (ROM) The constituent elements in claim 2 correspond as follows.

Loop section release instructing means: Loop start button (When the loop start button is pressed, the currently stored loop section is released, and the beginning of the section following the loop section is set as the loop start. The loop start button at the time of recording also serves as a loop section designation means and a loop section cancellation instruction means.) The loop section designation means is canceled due to the cancellation of the loop section designation by the loop section cancellation instruction means. Means for enabling specification of the next loop section by C: C
PU, program (Loop end of the next loop section can be set.) Each component in claim 3 corresponds as follows.

Detection means: Temporary table of CPU, program, RAM The tone information input before the end point of the loop section is detected by the detection means and the tone information input after the end point is detected are related to the loop section. Means of storing in the storage means as independent musical sound information: performance data memory of RAM, CPU, program Each component in claim 4 corresponds as follows.

Timing information: Current time t Detecting means: Temporary table of CPU, program, RAM Timing information updating means: Timer 17, CPU 11,
Temporary table of program and RAM The constituent elements in claim 5 correspond as follows.

Display means: display device 30 Display control means: CPU, program, loop data table (RAM) FIG. 9 is a flowchart showing a main routine of the automatic performance apparatus shown in FIG. When the power is turned on to the automatic performance apparatus shown in FIG. 1, this main routine starts. First, in step S101, a time memory (see FIG. 4) provided in the RAM is initialized, a loop data table (see FIG. 5) is initialized, a performance data memory (see FIG. 6) is initialized, and various flags are set. Perform initialization and other necessary initialization. Next, in step S102,
It is determined whether the "performance speed selection button" has been operated. If it is determined that the "performance speed selection button" has been operated, the process proceeds to step S103, the frequency corresponding to the operated "performance speed selection button" is set in the timer, and the process proceeds to step S104. On the other hand, the "play speed selection button"
If it is determined that is not operated, the process proceeds directly to step S104.

In step S104, it is determined whether the "beat length selection button" has been operated. If it is determined that the "beat length selection button" has been operated, step S
Proceeding to 105, the coefficient corresponding to the operated "beat length selection button", for example, the coefficient 48 representing four beats, is substituted into the temporary buffer B, and the frequency corresponding to the selected beat length is stored in the timer. After setting, the process proceeds to step S106.
The contents of the temporary buffer B are read out by a recording interrupt subroutine described later to generate a metronome sound. On the other hand, if it is determined in step S104 that the "beat length selection button" has not been operated, the process directly proceeds to step S106. The initial setting of “beat length” and “performance speed” at power-on is “beat length = 4
8 "and" performance speed = 120 "are set.

In step S106, it is determined whether the mode button has been pressed. If it is determined that the mode button has been pressed, the process proceeds to step S107. In step S107, when the automatic performance device is in the recording mode, the mode is switched to the reproduction mode, and when the automatic performance device is in the reproduction mode, the mode is switched to the recording mode. As described above, when it is determined that the mode button has been pressed, the recording mode and the reproduction mode are alternately switched. Next, the process proceeds to step S108 to perform a display process. In this display processing, when the switched mode is the recording mode, the recording mode is displayed on the display device, and when the switched mode is the playback mode, the playback mode is displayed on the display device and the process proceeds to step S109. move on. On the other hand, if it is determined that the mode button has not been operated, the process proceeds directly to step S109.

In step S109, it is determined whether the mode is the recording mode or the reproducing mode. If it is determined that the mode is the recording mode, the process proceeds to step S110, executes a recording mode subroutine described later, and returns to step S102. On the other hand, if it is determined that the mode is the reproduction mode, step S1
The process proceeds to step S11, where a reproduction mode subroutine described later is executed, and the process returns to step S102. Such processing is repeatedly executed until the power of the automatic performance device is cut off.

FIG. 10 is a flowchart showing a timer interrupt routine. From the timer 17 (see FIG. 1),
This routine starts when the CPU is interrupted at the cycle (1 / frequency) set by the "performance speed selection button". First, in step S201, it is determined whether the play flag is on or off (the play flag is turned on when a start button is pressed to start recording or playback, and is turned off when a stop button is pressed). . If it is determined that the play flag is off, it is not during recording or playback, so the process returns to the main routine without doing anything. On the other hand, if it is determined that the play flag is on, it means that either recording is in progress or playback is in progress, and the process proceeds to step S202. In step S202, it is determined whether the mode is the recording mode or the reproduction mode. If it is determined that the mode is the recording mode, step S2
In step 03, a recording interruption subroutine described later is executed, and the process returns to the main routine. On the other hand, if it is determined that the reproduction mode is set, the process proceeds to step S204, executes a reproduction interrupt subroutine described later, and returns to the main routine.

FIG. 11 is a flowchart showing a performance data input interrupt routine executed when performance data is input. When the performance data is input, the CPU is interrupted and this routine is executed. First, in step S301, it is determined whether the mode is the recording mode or the reproduction mode. If it is determined that the mode is the reproduction mode, the process proceeds to step S305, in which the performance data is transmitted to the sound source, a musical tone is generated, and the process returns to the main routine.

On the other hand, if it is determined that the mode is the recording mode, the process proceeds to step S302. In step S302,
It is determined whether the play flag is on or off. If it is determined that the play flag is off, the performance data is not recorded even in the recording mode. Therefore, the process proceeds to step S305, where the performance data is sent to the sound source to generate a musical tone, and the process returns to the main routine.

On the other hand, if it is determined that the play flag is on, then it is instructed to start recording, and step S3
Go to 03. In step S303, the current time t when the performance data was input and the performance data (see FIG. 6) are stored in the performance data memory at the address indicated by the recording pointer. Next, in step S304, the recording pointer is advanced. Further, in step S305, the performance data is sent to the sound source to generate a musical tone, and the process returns to the main routine.

FIG. 12 is a flowchart of a recording mode subroutine in the main routine shown in FIG.
First, in step S401, it is determined whether the start button has been operated. If it is determined that the start button has been operated, the process proceeds to step S402, where the play flag indicating the start of recording is turned on, and the process proceeds to step S40.
Proceed to 3. In step S403, 0 is substituted into the time T and the current time t in one measure to initialize the temporary memory, and the temporary memory is initialized. The initialization of the temporary memory is performed by a loop start time L_START_TIME,
This is performed by storing “0” in the loop end time L_END_TIME and storing “1” in the loop number L_NUMBER. Next, step S
Proceeding to 404, initialization of flags other than the play flag, initialization of the loop data table, and the like are performed. In the initialization of the loop data table, a table pointer is set at the beginning of the loop data table, and the start address of the performance data memory is stored in the loop start address L_START_AD. Further, the loop start time L_S
“0” is stored in TART_TIME, “0” is stored in the loop end time, and the loop number L_NUMBE is stored.
“1” is stored in R, and “1” is stored in the selection flag, and the timer 17 is started in step S405.

On the other hand, if it is determined in step S401 that the start button has not been operated, the flow proceeds directly to step S406. In step S406, it is determined whether the loop start button has been operated.
If it is determined that the loop start button has been operated, the favorite performance data has been recorded, and step S
Proceed to 407. In step S407, "0" is set in the loop end time L_END_TIME of the temporary memory.
Is set. When "0" is set to the loop end time L_END_TIME, it means that the loop end time is not set, and the process proceeds to step S410 without doing anything. If a value other than “0” is set in the loop end time L_END_TIME, it means that the player has instructed to update the loop start time L_START_TIME, and in this case, the process proceeds to step S408. In step S408, the loop end time L_END_TIME of the temporary memory is stored in the loop end time L_END_TIME of the loop data table, and the loop start time L_ST of the temporary memory is stored.
By storing the loop end time L_END_TIME + 1 of the temporary memory in the ART_TIME, the beginning of the bar in the loop section for the next new repetitive performance is set as the loop start time. Next, "0" is stored in the loop end time L_END_TIME of the temporary memory to clear the loop end time, and "1" is stored in the loop number L_NUMBER of the temporary memory. As a result, the loop number L_NUMBER in the previous loop section is, for example, 3, but is set to 1 indicating that the loop number L_NUMBER in the loop section for a new repetitive performance is first. Next, in step S409, the table pointer is advanced, and the process proceeds to step S410.

On the other hand, when it is determined in step S406 that the loop start button has not been operated, and in step S407, the loop end time L_E
The process also proceeds to step S410 when “0” is set in ND_TIME. In step S410, it is determined whether the loop end button has been operated. If it is determined that the loop end button has been operated, the process proceeds to step S411. In step S411, it is determined whether or not “0” is set in the loop end time L_END_TIME of the temporary memory. If “0” is set, then in step S412, the current time t is set to the loop start time L of the temporary memory.
It is determined whether or not it is larger than _START_TIME.
That is, the current time t is the loop start time L_STA
It is determined whether RT_TIME has elapsed. This determination is made when the loop start button is pressed during recording of performance data in a certain loop section and the loop end button is pressed in the same loop section, and this loop start time is set at the beginning of the next loop section. For,
This is to prevent inconsistency that the loop start time is later than the loop end time, and the current time t is the loop start time L_S of the temporary memory.
The loop end time L_END_TIME is not set until the time of TART_TIME has elapsed. If the determination in step S412 is affirmative, the process proceeds to step S413. In step S413, the last time 192 (1+
[T / 192])-1 (where [] is a Gaussian symbol and the content of [] is converted to an integer) is set as the loop end time L_END_TIME of the temporary memory.
Next, in step S413, the loop end setting permission flag is turned off, and the process proceeds to step S414. On the other hand, if it is determined in step S410 that the loop end button has not been operated, the process proceeds directly to step S41.
Proceed to 4. If the loop end time L_END_TIME of the temporary memory is set to a value other than “0” in step S411, the current time t is set to the loop start time L_STAR in step S412.
Step S414 also when T_TIME has not elapsed.
Move to

In step S414, it is determined whether the stop button has been operated. If it is determined that the stop button has been operated, the process proceeds to step S415. In step S415, the play flag is turned off, and the performance data is displayed in chronological order on the display device based on the loop data table. At this time, the performance data of the same loop section (having the same loop start) is arranged in a direction orthogonal to the time-series direction, and the performance data with the selection flag on for each loop section has a different display form. To be displayed. When this process ends, the mode is switched to the reproduction mode and the process returns to the main routine.

FIG. 13 is a flowchart of a recording interruption subroutine in the timer interruption routine shown in FIG. First, in step S501, the current time T is incremented, and the process proceeds to step S502. Step S
At 502, it is determined whether or not the time T within one measure is 192, that is, whether or not the performance time is at the end of the measure (at the beginning of the next measure). If it is determined that the current time t is not the end of the measure (the start of the next measure), the current time t does not become the loop start time L_START_TIME of the temporary memory, and the process proceeds to step S503. Step S50
In the time 3, the time T in one bar is set to the "beat length selection switch".
It is determined whether or not the number is a multiple of the length of the beat selected in (the value assigned to the temporary buffer B). If it is determined that the time T in one measure is a multiple of the length of the beat selected by the “beat length selection switch”, the process proceeds to step S504, and the “c” of the metronome sound is recorded during recording. The sound source is instructed to generate a sound, and the process proceeds to step S505. On the other hand, if it is determined that the time T in one bar is not a multiple of the length of the beat selected by the “beat length selection switch”, the process directly proceeds to step S505. In step S505, the current time t is incremented, and the process proceeds to step S512 for determining a loop end time L_END_TIME, which will be described later.

On the other hand, if it is determined in step S502 that the time T in one measure is 192, it means that the performance of that measure has ended and the beginning of the next measure has occurred, so that the flow proceeds to step S506. Then, during recording, the sound source is instructed to emit the “chine” sound of the metronome sound, and the flow proceeds to step S507. In step S507, the time T in one measure is set to “0”, and
At 508, the current time t is incremented, and the process proceeds to step S509.

In step S509, the current time t is set to the loop start time L_set in the temporary memory.
It is determined whether or not START_TIME has been reached. If it is determined that the loop start time has reached L_START_TIME, the process proceeds to step S510 to set a loop section in the next repeated performance. In step S510, the address indicated by the recording pointer in the performance data memory is stored in a loop start address L_START_AD corresponding to the number (see FIG. 5) indicated by the table pointer in the loop data table.
The current time t is also the same as the loop start time L_START corresponding to the number in the loop data table.
_TIME. Further, the loop number L_NUMBER of the temporary memory is also represented by the loop number L_N corresponding to the number in the loop data table.
Store in UMBER. Next, the process proceeds to step S511,
In the loop data table, the selection flag indicated by the table pointer and also corresponding to the same number is turned on ("1"). This selection flag can be turned on for only one performance data string among a plurality of performance data strings for one loop section, and the selection flag for the last turned on loop section becomes effective.
The selection flags for the other loop sections are all turned off ("0").

On the other hand, in step S509, the current time t is set to the loop start time L_START_TIME.
If it is determined that the condition is not satisfied, the process proceeds to step S
Proceed to 512. In step S512, it is determined whether or not the current time t is the loop end time L_END_TIME. The current time t is the loop end time L_EN
If it is determined to be D_TIME, the loop section has been completed, and the flow advances to step S513 to put the current time t into the loop end time L_END_TIME corresponding to the number indicated by the table pointer in the loop data table, and enter information on one loop section. Complete
In step S514, the loop number L_NUMBER of the temporary memory is incremented. Next, the process proceeds to step S515, where the table pointer is advanced to store the performance data in the next loop section. Further, in step S516, the loop start time L_STAR which is a value obtained by subtracting 1 from the loop start time L_START_TIME of the time memory at the current time t.
Substitute T_TIME-1 and return to the main routine.

On the other hand, if it is determined in step S512 that the current time t is not the loop end time L_END_TIME, the process returns to the main routine.
FIG. 14 is a flowchart of a reproduction mode subroutine in the main routine shown in FIG. First, in step S601, it is determined whether or not the left and right keys of the cursor keys have been operated. If it is determined that the left and right keys have been operated, the process proceeds to step S602, and the cursor 71 (see FIG. 8) for selecting one performance data string among a plurality of performance data strings for one loop section is moved. The display is moved left or right according to the operation of the left and right keys, and the process proceeds to step S603. On the other hand, if it is determined that the left and right keys have not been operated, the process proceeds directly to step S603. In step S603, it is determined whether or not the up and down keys of the cursor keys have been operated. If it is determined that the up / down key has been operated, step S60
In step 4, the cursor 71 is moved up or down according to the operation of the up / down key, the selection flag corresponding to the performance data string selected by the cursor movement is turned on, and all the other selection flags in the same loop section are cleared. Turn off and go to step S605. In step S605, the cursor 7
It is determined whether or not the performance data of the performance data string displayed in 1 is being reproduced. If it is determined that the performance data of the performance data string is being reproduced, the performance data of the performance data string is not immediately switched, but is performed after the loop end time. Is turned on, and the process proceeds to step S608. On the other hand, if it is determined in step S605 that the performance data of the performance data string displayed by the cursor 71 is not being reproduced, the process proceeds to step S606, where the cursor 7
The selection flag for selecting the performance data string displayed in step 1 is turned on, and the process proceeds to step S608 (at this time, the selection flag corresponding to another performance data string of the repeated performance having the same performance start time is turned off). .

If it is determined in step S603 that the up / down key among the cursor keys has not been operated, the process proceeds to step S608. Step S6
At 08, it is determined whether or not the enter button has been operated. If it is determined that the enter button has been operated, the flow advances to step S609 to delete the performance data rows other than the performance data row selected one by one for each loop section, and then advances to step S610. In step S610, the performance data sequence selected for each loop section is displayed on the display device, and the flow advances to step S611. On the other hand, if it is determined in step S608 that the enter button has not been operated, the process proceeds directly to step S611. Here, the performance data strings other than the selected performance data string are deleted, but without deleting these performance data strings,
Only the selected performance data string may be moved to another storage area or copied and displayed.

Next, in step S611, it is determined whether the start button has been operated. If it is determined that the start button has been pressed, the flow advances to step S612, the play flag is turned on, and the flow advances to step S613. In step S613, the time T and the current time t in one measure are initialized by inserting 0, and the loop end time L_END_TIME of the loop data selected in the first loop section is referred to the loop data table by the loop of the temporary memory. Data loop end time L_
Copy to END_TIME and start timer. Next, the process proceeds to step S614, where necessary flags other than the play flag are initialized (a loop flag, a switching flag, etc.), a playback pointer is initialized, a table pointer is initialized, a time memory is initialized, and the like. move on. On the other hand, if it is determined in step S611 that the start button has not been operated, the process proceeds directly to step S615.

In step S615, it is determined whether the stop button has been operated. If it is determined that the stop button has been operated, the process proceeds to step S616, the play flag is turned off, and the process proceeds to step S617. On the other hand, if it is determined that the stop button has not been operated, the process proceeds directly to step S617. Step S61
At 7, it is determined whether the loop start button has been pressed. If it is determined that the loop start button has been pressed, the process proceeds to step S618 because the player has instructed loop playback. In step S618, referring to the loop data table, the loop start time L of the loop data table selected in the loop section being played is selected.
_START_TIME and loop end time L_EN
D_TIME is defined as the loop start time L_START_TIME and the loop end time L of the temporary memory.
_END_TIME. Next, in step S619, the loop flag is turned on. This loop flag is turned on when loop reproduction is performed, and is turned off when normal reproduction is performed. Next, the process proceeds to step S620.

On the other hand, if it is determined in step S617 that the loop start button has not been operated, the process proceeds directly to step S620. In step S620, it is determined whether the loop end button has been operated. If it is determined that the loop end button has been operated, the loop reproduction has been cancelled, and in step S621, the loop flag is turned off and the process returns to the main routine. On the other hand, when it is determined that the loop end button has not been operated, the process returns to the main routine.

FIG. 15 is a flowchart of a reproduction interruption subroutine in the timer interruption routine shown in FIG. First, in step S701, the current time t is incremented, and the process proceeds to step S702. Step S7
In 02, it is determined whether or not the time of the performance data pointed to by the playback pointer in the performance data memory is the same as the current time t. If it is determined that these times match, the time at which the performance data should be reproduced has arrived, and the flow advances to step S703 to transmit the performance data indicated by the reproduction pointer to the sound source. Further, in step S704, the reproduction pointer is advanced to the next address in the performance data memory, and the process returns to step S702. This routine is repeated as long as there is performance data whose time matches. Step S7
02, if it is determined that the times do not match, the process proceeds to step S705, in which the current time t is set to the loop end time L_END_TI set in the temporary memory.
It is determined whether or not the value matches ME. When the current time t matches the loop end time L_END_TIME,
That is, when it is determined that the loop end time has come, the process proceeds to step S706. In step S706, it is determined whether the loop flag is on or off. If it is determined that the loop flag is off, the process proceeds to step S707. In step S707, referring to the loop data table,
The next selected loop start address L_START corresponding to the performance of the loop section (selection flag is 1)
_AD and loop end time L_END_TIME
To the loop start address L_START_AD and the loop end time L_ of the temporary memory, respectively.
Set to END_TIME. Next, the process proceeds to step S708, where the reproduction pointer is moved to the loop start address L_START_AD of the temporary memory, and the process proceeds to step S708.
Proceed to 709. On the other hand, if it is determined in step S705 that the current time t does not match the loop end time L_END_TIME, the process proceeds to step S7.
Go to 09.

The processing from step S709 to step S712 described below is performed during performance on the display device.
This is a process for moving the performance position display cursor shown in FIG. First, in step S709,
The time T in one bar is incremented. Next, in step S710, it is determined whether or not the time T within one measure is 192. If it is determined that the time T in one measure is T = 192, the process proceeds to step S711 because it is the beginning of the measure (the end of the previous measure), and the cursor 3 for displaying the performance position is displayed.
4 is moved to the next bar, and at step S712, 1
The time T in the measure is set to 0, initialized, and the process returns to the main routine. If it is determined that the time T in one bar is not 192, the process returns to the main routine.

If it is determined in step S706 that the loop flag is ON, the process proceeds to step S706.
Proceeding to 713, the loop start time L_START_TIME-1 of the temporary memory is inserted into the current time t,
Proceed to step S714. In step S714, it is determined whether the switching flag is on or off. If it is determined that the switching flag is on, the process proceeds to step S71.
Then, the process proceeds to step S5, and the loop start address L_START_AD corresponding to the performance data of the selected and displayed loop section is inserted into the loop start address L_START_AD of the temporary memory with reference to the loop data table in order to perform the performance data switching processing of the loop section. In step S716, the switching flag is turned off, and the flow advances to step S717.

On the other hand, if it is determined in step S714 that the switching flag is off, the process proceeds directly to step S717. In step S717, the reproduction pointer is set to the loop start address L_S of the temporary memory.
Move to the position of TART_AD and proceed to step S718. In step S718, the cursor 34 for the performance position
Is moved to the beginning of the loop section, and the flow advances to step S712. In step S712, as described above, the time T within one measure is set to 0, initialization is performed, and the process returns to the main routine.

Although the present embodiment has been described with respect to the reproduction of only one part, a plurality of parts may be reproduced simultaneously. In this case, these parts are synchronized with the current time t, and other parts than the recording part are used. When the part reaches the loop end time L_END_TIME, the reproduction pointer may be returned to the position of the loop start time L_START_TIME. In that case, the recording part may be switched, and when the recording part is selected, the performance information may be stored in the newly selected part while reproducing the previously recorded part.

In this embodiment, the recording / reproduction is controlled by the current time t from the beginning of the performance data. For example, a time difference between the performance information and the performance information is stored together with the performance data, and the reproduction is performed based on these. It may be controlled. Further, in the present embodiment, the time is represented by the number of clocks caused by the timer interrupt, but the recording / reproduction may be controlled by the count value of the timer itself.

In this embodiment, the performance data in any loop section is always repeatedly recorded. However, normal recording (one time) is performed by repeatedly canceling the recording only in a certain loop section. You may do so. Further, in the present embodiment, when the loop start button is pressed for repeated recording, the loop end time L_END_TI
The beginning of the bar following the bar set to ME is set to the loop start time L_START_TIME, but the loop start time L_START_
The position of the TIME may be freely set.

In the present embodiment, when playing back the performance data in the loop section, only the performance data of the selected performance data string is read and sent to the sound source. All of the performance data of a plurality of performance data strings may be read out, and only the performance data of the selected performance data string may be sent to the sound source. Alternatively, the performance data of all or some of the plurality of performance data strings may be sent to the sound source, and the volume corresponding to the performance data other than the performance data of the selected performance data string may be set to zero.

The performance data may be stored continuously in the memory area, or may be separately stored in different memory areas such as tracks. Note that the tone information may be the tone itself or information for silencing the sound. In that case, the input tone signal may be stored in the memory sequentially.
In the embodiment of the present application, the input timing information is stored together with the performance information. However, when the musical sound itself is recorded, the timing information is not essential.

In this embodiment, recording / playback control
The time of the loop start and the end of the loop are managed based on the absolute time t from the beginning of the performance. However, the present invention is not limited to this. Elapsed time (relative time) from the previous performance data to the input performance data It may be stored together with. In this case, when recording is performed by specifying a loop section, performance data that forcibly silences the performance data that is sounding at the end of the loop may be stored at the time of the loop end. Good.

Further, the recording may be time-managed based on the absolute time and stored in the performance data memory, and may be converted into a format in which the time can be managed based on the relative time at the end of the recording. Among the plurality of pieces of tone information for each loop section, tone information other than the tone information selected by the selection means may be deleted. Alternatively, of the plurality of pieces of tone information for each loop section, only the tone information selected by the selection means may be stored in another area of the memory.

The present invention updates the current time to a loop start L_START_TIME every time the current time t reaches the loop end time L_END_TIME during recording, and stores the updated current time t together with performance information in the next loop. However, without performing this update, the information of the loop section and the number of times played in the loop section are stored at the time of recording, so that the performance data is connected in chronological order or repeated in the loop section. Since it is possible to know whether the data is performance data, an effect equivalent to that of the present application can be obtained by performing a special reading method during reproduction.

For example, assume that performance data of a third loop is recorded in the first loop section, and performance data of five loops is recorded in the next loop section. When reading out the second performance data in the first loop section and reading out the fourth performance data in the next loop section, the current time t is added by the length of one loop section. Then, the second performance data can be reproduced. In the case of moving to the next loop section, when the time immediately before the first loop section is reached, the current time t is added by the time corresponding to the start time of the next loop section. In the case of the example, since the second performance data is recorded three times and the second performance data is played, the time corresponding to one length of the first loop section is added to the time t. Since the fourth performance data is selected in the next loop section, the time corresponding to the length of the next loop section three times is added to the time t. The claims of the present application include, of course, such a special reading method.

[0080]

As described above, according to the present invention,
When music information is stored and the stored music information is read out and the music is reproduced, desired music information can be easily selected as music data. Therefore, a desired song can be easily created.

[Brief description of the drawings]

FIG. 1 is a block diagram of an automatic performance device according to an embodiment of the present invention.

FIG. 2 is a view showing the panel shown in FIG.

FIG. 3 is a diagram showing a display device of the panel shown in FIG. 2;

FIG. 4 is a diagram showing a temporary memory provided in a RAM and used during recording and reproduction.

FIG. 5 is a diagram showing a loop data table provided in a RAM for storing and reading information of each of a plurality of loop sections.

FIG. 6 is a diagram showing a performance data memory provided in a RAM for storing performance data.

FIG. 7 is a diagram showing the first half of a procedure for recording performance data and reproducing desired performance data based on the recorded performance data.

FIG. 8 is a diagram showing the latter half of the procedure shown in FIG. 7;

FIG. 9 is a flowchart showing a main routine of the automatic performance device shown in FIG. 1;

FIG. 10 is a flowchart showing a timer interrupt routine.

FIG. 11 is a flowchart showing a performance data input interrupt routine executed when performance data is input.

12 is a flowchart of a recording mode subroutine in the main routine shown in FIG.

13 is a flowchart of a recording interruption subroutine in the timer interruption routine shown in FIG.

FIG. 14 is a flowchart of a reproduction mode subroutine in the main routine shown in FIG. 9;

15 is a flowchart of a reproduction interruption subroutine in the timer interruption routine shown in FIG.

[Explanation of symbols]

 11 CPU 12 RAM 13 ROM 14 Keyboard 15 MIDI Interface 16 Panel 17 Timer 18 Sound Source 19 Data Bus 21 Performance Speed Selection Button 22 Beat Length Selection Button 23 Mode Button 24 Start Button 25 Stop Button 26 Loop Start Button 27 Loop End Button 28 Cursor keys 29 Enter button 30 Display device 31, 34, 71 Cursor 32, 33 Performance data string

Claims (5)

[Claims] 1. A recording / reproducing apparatus for storing musical tone information and reading out the stored musical tone information to reproduce a musical tone, wherein: a musical tone information inputting means for sequentially inputting musical tone information; Music information storage means for storing the music information inputted by the above, loop section designating means for designating a plurality of loop sections on a time axis representing progress of time, and designation of a plurality of loop sections by the loop section designating means. Loop information storage means for storing information; and, based on the information in the loop information storage means, the tone information to be reproduced for each of the tone information in the same loop section among the tone information stored in the storage means. Recording / reproducing apparatus comprising a selecting means for reproducing only the tone information selected by the selecting means. 2. When the musical tone information is stored in a state where a certain loop section is designated by the loop section designating means, a loop section canceling instruction means for instructing cancellation of the specification of the loop section is provided. 2. The recording / reproducing apparatus according to claim 1, wherein the designation of the next loop section by the loop section designation means becomes possible due to the cancellation of the designation of the loop section by the loop section cancellation instruction means. 3. A detecting means for detecting that the current time has reached the end point of the loop section when the loop section is specified by the loop section specifying means, and before detecting the end point of the loop section by the detecting means. The tone information inputted to the loop section and the tone information inputted after the end point is detected are stored in the storage means as independent tone information for the loop section.
Or the recording / reproducing apparatus according to 2. 4. The storage means stores the tone information input by the tone information input means with timing information indicating the timing on the time axis at which the tone information was input, Detecting means for detecting that the timing information representing the current time reaches the end point of the loop section; updating the time information indicating the timing on the time axis as time progresses; When a section is instructed, the end point detecting means includes timing information updating means for updating the timing information to the timing of the start point of the loop section due to reaching the end point of the loop section. The recording / reproducing apparatus according to any one of claims 1 to 3, wherein 5. A display means capable of displaying musical tone information on a screen in characters or graphics, and displaying and displaying musical tone information on a time axis based on the loop information stored in the loop information storing means.
While displaying the same tone information in the same loop section at a position orthogonal to the time axis direction, if the display form of the tone information string selected by the tone information string selection means is different from the display form of the unselected tone information string. The recording / reproducing apparatus according to any one of claims 1 to 4, further comprising display control means for performing display.