JP3259602B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus capable of controlling the reproduction tempo of performance data and the generation of musical tones by operating a control or a microphone.

[0002]

2. Description of the Related Art There has been proposed a conventional automatic performance device which can control the tempo and dynamics of an automatic performance by hand gesture using an operating device such as a baton. This automatic performance device increases or decreases the tempo of an automatic performance by increasing or decreasing the frequency of a tempo clock in response to a swing operation of a manipulator such as a baton.

[0003]

However, in the tempo control of the above-mentioned method, since only the average value of the swing operation controls the tempo clock frequency, individual beat timing cannot be controlled. However, there was a drawback lacking in interest.

It is also conceivable to control the karaoke accompaniment tempo by operating an operator. By doing so, the tempo can be controlled while singing the song, so that karaoke can be made more enjoyable. However, it is extremely difficult to keep the tempo control operation while singing.
There was a problem that either one was neglected.

An object of the present invention is to provide an automatic performance apparatus which can perform reproduction control of performance data for a part of a music piece, and can generate not only reproduction control of performance data but also musical tones. Aim.

[0006]

According to a first aspect of the present invention, there is provided a storage means for storing performance data including a reproduction control mode on data and a reproduction control mode off data, and operated during reproduction of the performance data. operator and a reproduction control means the performance data tempo control or <br/> other playback in response to operation of the operator for controlling a two-pulse timing without changing the tempo of the playback, the performance data At the time of reproduction, a mode on / off means for enabling the reproduction control means when the reproduction control mode on data is read, and disabling the reproduction control means when the reproduction control mode off data is read. It is characterized by having.

[0007] The invention of claim 2 of the present application is a reproduction control mode.
Mode on data, playback control mode off data, tone generation
Mode on data and tone generation mode off data
Storage means for storing non-performance data, and the rocking operation element is operated during the performance data reproduction, when the performance data reproducing
When the playback control mode ON data is read out,
Turn on the control mode and read the playback control mode off data.
Turn off playback control mode when output
Turn on the tone generation mode when ON data is read
When the tone generation mode off data is read out,
A mode on / off means for turning off the generation mode; a reproduction control means for controlling reproduction of the performance data in accordance with an operation of the swing operation element when the reproduction control mode is on; And a tone generating means for generating a tone other than the playback sound of the performance data in response to the operation of the rocking operation element.

[0008]

According to a third aspect of the present invention, there is provided a storage means for storing performance data, a microphone having a built-in swing sensor, and an input detection means for detecting an input signal from the microphone when reproducing the performance data. Control means for controlling reproduction of performance data in accordance with the detection value of the swing sensor, and mode on / off means for enabling / disabling the control means in accordance with the detection content of the input detection means. It is characterized by the following.

According to a fourth aspect of the present invention, there is provided a storage means for storing performance data, a plurality of microphones each having a built-in swing sensor, a selection means for selecting one microphone from the plurality of microphones, A reproduction control unit that controls reproduction of the performance data in accordance with a detection value of a swing sensor built in the microphone selected by the selection unit.

According to a fifth aspect of the present invention, there is provided a storage means for storing performance data, a plurality of swing operators operated during reproduction of the performance data, and a most-operated operation among the plurality of swing operators. An operator selecting means for selecting an object having a large amount;
Reproduction control means for controlling reproduction of the performance data in accordance with the operation of the operation element selected by the operation element selection means.

[0012]

According to the first aspect of the present invention, the performance data is stored in the storage means. The performance data includes reproduction control mode on data and reproduction control mode off data. When playing back the performance data, the controls are operated, and in response to the operation of the controls, the playback tempo or the playback data of the performance data is set.
Is controlled in timing (reproduction control means). However,
The reproduction control means is effective when the reproduction control mode on data is read from the performance data, and is invalid when the reproduction control mode off data is read. That is, while the reproduction control means is disabled, the reproduction of the performance data proceeds without performing the control. As a result, for example, the control is enabled only during the intro (prelude), interlude, or ending (rear), and the performance can proceed without any other control. For example, it is possible to concentrate on karaoke singing and the like. be able to.

According to the second aspect of the present invention, the reproduction control can be performed and / or a tone other than the reproduction sound can be generated by operating the rocking operator when reproducing the performance data stored in the storage means. When the playback control mode is turned on, the reproduction of the performance data is controlled according to the operation of the rocking operation element. When the tone generation mode is turned on, the performance data is controlled according to the operation of the rocking operation element. Tones other than the reproduction sound of the above are generated. As a result, the tempo control and / or the generation of musical tones can be controlled in accordance with the progress of the automatic performance, and an operation suitable for the scene can be enjoyed.

In this case, the reproduction control mode on data, the reproduction control mode off data, the tone generation mode on data and the tone generation mode off data are embedded in the performance data, and when these are read out, the reproduction control mode is turned off. ON / OFF and ON / OFF of the tone generation mode
Turn off. As a result, the mode is automatically turned on / off at an appropriate timing even if the user does not turn on / off the mode by himself, thereby facilitating the operation.

According to a third aspect of the present invention, a microphone having a built-in swing sensor is provided, and reproduction of performance data is controlled in accordance with a detection value of the swing sensor. However, a voice signal input from a microphone is detected, and the control is turned on / off according to the detected content. As a result, the playback control is automatically turned on / off depending on the use state of the microphone.
This can be turned off, and in the case of karaoke singing, reproduction control can be performed only during prelude or interlude. Also, no special controls other than the microphone are required.

According to a fourth aspect of the present invention, a plurality of microphones each having a built-in swing sensor are provided, and one microphone is selected from the plurality of microphones, and the detected value of the built-in swing sensor is determined by the selected microphone. The reproduction of the performance data is controlled accordingly. This allows
When a plurality of microphones are connected, a microphone used for singing and a microphone used for reproduction control can be separated, or they can be the same.

According to a fifth aspect of the present invention, a plurality of swing operators are provided, and the one having the largest operation amount is selected from the plurality of swing operators, and the plurality of swing operators are selected according to the operation of the selected operator. Control playback of performance data. This makes it possible to automatically select an operator that is strongly rocked for reproduction control, and eliminates the need for operation such as turning on a selection switch.

[0018]

FIG. 1 is a block diagram of an automatic performance apparatus according to an embodiment of the present invention. This automatic performance device performs automatic performance by reading performance data composed of a combination of delta time and event data, and also sets the tempo of the automatic performance in real time in response to the operation of a controller (microphone or the like) which is rocked by a user. It can control and generate percussion sounds.

The CPU 10 has a ROM 1 via a bus.
1, RAM 12, FDD 13, MIDI interface 14, timer 15, display circuit 16, key press detection circuit 17,
The switch detection circuit 19, the A / D conversion circuits 21 and 24, the sound source circuit 27, and the effect circuit 28 are connected. RO
M11 stores a control program and the like used by the CPU 10. In the RAM 12, an area for reading performance data for performing an automatic performance and an area for storing output data of the piezoelectric vibration gyro sensors 23 and 26 connected to the A / D conversion circuits 21 and 24 are set. A floppy disk storing a plurality of performance data is set in the FDD 13. The MIDI interface 14 is connected to another sound source device or the like. The CPU 10 can also control the externally connected sound source device via the MIDI interface 14. The timer is a circuit that interrupts the CPU 10 every predetermined time (for example, 10 ms). The display circuit 16 is a circuit for displaying the name of the music piece of the performance data that is currently being processed, the name of the tone color that is being generated, and the like. The keyboard 18 is connected to the key press detection circuit 17. The keyboard 18 has a range of about 5 octaves (61 keys), and includes sensors for ON / OFF of each key and a key-on speed (velocity) of each key. The key press detection circuit 17 has a function of detecting on / off and velocity of each key of the keyboard 18 and latching the same.

The tone generator 27 receives on / off event data of the keyboard 18 and performance event data read from the RAM 12 from the CPU 10 to form a tone signal. The formed tone signal is input to the effect circuit 28.
The microphone 30 is connected to the effect circuit 28 in addition to the sound source circuit 27. The microphone 30 is used to input a singing when automatically performing a karaoke song or the like. The effect circuit 28
In accordance with an instruction from the CPU 10, an effect such as reverb is applied to the input tone signal or singing voice signal. The tone signal with the effect is input to the sound system 29. The sound system 29 amplifies and outputs the input tone signal.

The microphone 30 has built-in piezoelectric vibrating gyro sensors 23 and 26. When the user is not singing, the microphone 30 swings the gyro sensor to control the tempo of automatic performance and to generate percussion instrument sounds. It can be carried out. The piezoelectric vibration gyro sensors 23 and 26 include a noise elimination circuit 22,
25 are connected to the A / D conversion circuits 21 and 24. The piezoelectric signal gyro sensors 23 and 26 are arranged in the X-axis direction,
It is installed in the Y-axis direction, and when the user swings the microphone 30, the angular velocity of the swing is changed by the A / D conversion circuits 21, 21.
4 to the CPU 10. The noise removal circuits 22 and 25 are circuits that remove detection data due to fine vibrations and the like to prevent erroneous detection of the peak of the angular velocity. A
The / D conversion circuits 21 and 24 convert the detected data into digital data and input the digital data to the CPU 10.

When controlling the tempo of the automatic performance, the user may indicate the beat by shaking the microphone 30 by the operation shown in FIG. 2 (C). This operation is detected by the piezoelectric vibrating gyro sensors 23 and 26 built in the microphone 30, and the A /
The signals are input to the D conversion circuits 21 and 24. When the CPU 10 detects the peak of the angular velocity of the swing, the operation direction is changed as shown in FIG.
It is determined which direction the motion is in (C), and the performance timing of the beat corresponding to the motion is controlled. In the case of producing percussion instrument sounds, the user swings the microphone 30 in an arbitrary direction, so that percussion instrument sounds are formed at the peak timing of the oscillation angular velocity. Whether the tempo is controlled or the percussion sound is generated by the swing is determined by the tempo control mode on / off event data and the percussion sound on / off event data written in the performance data. Further, a tempo control switch or a percussion switch may be provided on the microphone 30 as described later, and the user may freely set the mode by swinging while turning on the switch.

A plurality of switches 20 are connected to the switch detection circuit 19. The switch 20 includes an automatic performance start / stop switch and the like.
As described later, when various switches are provided in the grip portion of the microphone 30, those switches are also included. The switch detection circuit 19 detects on / off events of these switches and transmits them to the CPU 10.

FIG. 2 is a diagram showing an example of performance data and a tempo control operation by the microphone 30. In FIG. 3A, the performance data includes a header, a plurality of sets of delta time data, and event data. The header contains
Tempo data and time signature data at the beginning of the performance are written. The delta time data is data indicating a time interval between the event data and the event data. In this embodiment, the delta time data is expressed in units of ms (millisecond). The event data includes performance event data sent to the tone generator circuit 27, such as sounding event data and mute event data, beat mark event data indicating the number of beats in a bar,
Tempo control mode on / off event data to turn on / off tempo control mode, percussion mode on / off event data to turn on / off percussion instrument mode, new beats and tempo when beats and tempo change in the middle of a song Time change event data, tempo change event data, and the like. Four types of beat mark event data, beat 1, beat 2, beat 3, and beat 0 are defined. Beat 1 data is the first beat of all beats, 4
It is written at the third beat timing of the beat. Beat 1
Data corresponds to the operation 1 in FIG. The data of beat 2 is written at the second beat timing of three beats. The data of beat 2 corresponds to operation 2 in FIG. The data of the beat 3 is written at the third beat of the triple time, the second beat of the double time, the second beat of the quadruple, and the beat timing of the fourth beat. The data of beat 3 is shown in operation 3 in FIG.
It corresponds to. The data of beat 0 is written to indicate only the beat timing when the time signature and the number of beats are unknown.

The tempo control mode on / off event data and percussion instrument mode on / off event data are written in the performance data, for example, at the positions shown in FIG. Tempo control mode on event data is written at the start position of the intro (prelude), and tempo control mode off event data is written at the end position of the intro. Thereby, the tempo control mode is turned on only during the intro period, and the tempo control by the swing of the microphone 30 becomes possible. Further, percussion instrument mode on event data is written at the start position of the interlude, and percussion instrument mode off event data is written at the end position of the interlude. As a result, the percussion instrument mode is turned on only for the period of the interlude, and the percussion instrument sound can be emitted by swinging the microphone 30. Further, percussion instrument mode on event data is written at the start position of the ending (rear), and percussion instrument mode off event data is written at the end position of the ending (end position of the music). Thereby, the percussion instrument mode is turned on at the time of ending, and the percussion instrument sound can be generated by swinging the microphone 30.

The beat mark event data is written at the position of each beat timing. That is, one or a plurality of delta time data whose total length is one beat are written between each beat mark event data. For example, if there are four pieces of performance event data during one beat, there are five pieces of delta time data, the total of which is the length of one beat. During automatic performance, these data are read based on the delta time data. When the tempo control mode is on, the CPU 10 controls the reading of the performance data so that the generation timing of the beat instruction signal generated by the user operating the microphone 30 and the reading timing of the beat mark event data coincide. In FIG. 3, when the generation of the beat instruction signal is earlier than the reading of the beat mark event data,
The performance data is fast-forwarded to a beat mark event, and these timings are adjusted to match. Also,
When the reading of the beat mark event data is earlier than the generation of the beat instruction signal, the reading of the performance data is temporarily stopped until the generation of the beat instruction signal (PAUSE).
I do. Further, the generation timing of the current beat signal signal and one of the performance data (corrected by the immediately preceding T_COEF)
The tempo coefficient T_COEF is calculated based on the length of the beat, and the tempo is adjusted by multiplying the calculated delta time data by the calculated tempo coefficient T_COEF. That is, the tempo is changed by expanding and contracting the delta time data. The tempo coefficient T_COEF is calculated according to the following procedure. Note that the initial value of the tempo coefficient T_COEF at the start of the automatic performance is 1. If the beat interval of the performance data corrected by the immediately preceding T_COEF is DELTA_ACM, and the beat interval designated by the user with the beat instruction signal is INTERVAL, the tempo ratio RATE, which is the deviation ratio, is calculated by RATE = INTERVAL / DELTA_ACM. This RATE is set to tempo coefficient T_COEF
Then, the tempo coefficient T_COEF is updated. This tempo coefficient T_COEF is multiplied by the delta time data read out thereafter, and the next beat interval is corrected so as to match the current INTERVAL. The tempo coefficient T_COEF is updated every beat according to the above formula, and based on this, the delta time data of the next beat interval is corrected, so that the tempo is corrected every beat to match the immediately preceding INTERVAL. become.

As shown in FIG. 2 (B), when the tempo control mode and the percussion instrument mode are turned on during the intro, interlude, and ending periods, the display of the automatic performance device and the karaoke device at a predetermined timing. On the monitor,
A display such as "Please indicate the tempo by shaking the microphone.", "Please sing", "If you shake the microphone, the sound of the percussion instrument is output", etc. can be easily understood by the user.

The automatic performance operation of the automatic performance device will be described with reference to the flowcharts of FIGS.

FIG. 4 is a flow chart showing a sensor detection processing operation by a timer interrupt. This operation is 10m
It is executed every s, and detects the rocking operation of the microphone 30 by the user. First, two piezoelectric vibration gyro sensors 23 and 26 installed in the microphone 30 in the X-axis and Y-axis directions.
(S1), and the absolute angular velocity (√x ² + y ² ) is determined based on the output (s2). It is determined whether or not the obtained absolute angular velocity is a peak value, and if it is a peak value (s3), the operation proceeds to s4 and below. If it is not the peak value, the process returns.

At s4, it is determined whether or not the current mode is the percussion instrument mode based on the percussion instrument mode flag PERC_CTRL. In the percussion instrument mode, a percussion instrument sound is generated corresponding to this peak (s5). Here, any tone can be set as the percussion instrument sound, and change by the user may be made possible. The timbre may be a sound effect such as clapping or clapping in addition to tambourine or maracas. Further, the timbre may be switched according to the operation data such as the peak level, the volume or the timbre may be slightly changed, or a new sound may be added.

On the other hand, a percussion instrument mode flag PERC_CT
If RL = 0, the process proceeds to s6, where it is determined whether or not the tempo control mode is set, by a tempo control mode flag TMP_CTR.
Judge based on L. In the tempo control mode, this peak is an instruction of beat timing, the type of the peak is determined according to the swing angle θ, and a beat instruction signal of a number corresponding to the peak type is generated (s7). In the operation of s7, as shown in FIG.
315 °, 315 ° (-45 °) to 45 °, 45 ° to 1
It is divided into three in the range of 80 °, and the swing angle θ at the peak is 18
If it is within the range of 0 ° to 315 °, it is determined that it is the peak of operation 1 and a beat instruction signal of operation 1 is generated. If the swing angle θ at the peak is within the range of 315 ° (−45 °) to 45 °, it is determined that the peak is the operation 2 and the beat instruction signal of the operation 2 is generated. If the swing angle θ at the peak is within the range of 45 ° to 180 °, it is determined that the peak of operation 3 is the peak and the beat instruction signal of operation 3 is generated.

At s6, the tempo control mode flag T
If MP_CTRL = 0, the process returns. Therefore, the percussion instrument mode flag PERC_CTRL = 0
If the tempo control mode flag TMP_CTRL = 0, nothing is executed even if the user swings the microphone 30.

FIG. 5 is a flowchart showing the reproduction processing operation. This operation is performed by a timer interrupt. The timer interrupt is performed at a short interval of about 1 ms. First, it is determined in s10 to s12 whether or not performance data is read. RUN is an automatic performance flag,
When RUN = 1, it indicates that automatic performance is being performed. PAUSE is a pause (pause) flag,
When PAUSE = 1, it indicates that the progress of the automatic performance is temporarily stopped. TIME is a duration time register for setting a delta time which is a time interval until the next performance data is read out and counting down. Therefore, TIME =
When it is 0, it is determined that it is the timing for reading the next performance data. Therefore, when RUN = 1, PAUSE = 0 and TIME = 0, it is determined that the operation is not stopped during the automatic performance and that it is time to read the next performance data.

When the above conditions are satisfied, s13
Then, the address of the performance data is advanced and the next data is read (s13). It is determined whether the read data is event data or delta time data (s1
4). If it is event data, a process corresponding to the event data is executed (s15), and the process returns to s13 to read out the next performance data.

If the read data is delta time data, the delta time data is set in the duration time register TIME (s16). T
When the value set in the IME is 0 (when a plurality of events occur simultaneously), the process returns from s17 to s13. If TIME is not 0, TIM
E is corrected by multiplying it by the tempo coefficient T_COEF described in FIG. 3 (s18), and subtracting 1 from TIME (s)
19).

Here, the tempo control flag TMP_CTR
It is determined whether or not the current mode is the tempo control mode with reference to L (s20). If in tempo control mode, DELTA_
ACM is incremented by 1 (s21). DELTA_ACM
Is a register for integrating the corrected delta time data for one beat, as described with reference to FIG. In addition, INT
One is added to ERVAL (s22). INTERVA
L is a register for accumulating the delta time for one beat specified by the operator after the generation of the immediately preceding beat instruction signal until the generation of the next beat instruction signal, as described with reference to FIG. Next, beat instruction corresponding processing (s23)
Execute The beat instruction corresponding processing will be described in detail in the description of FIG.

If RUN = 0 in s10, the process returns without performing any operation because the automatic performance is not being performed. If PAUSE = 1 in s11, the process proceeds to s22 to add 1 to INTERVAL since the generation of a beat instruction signal by the user is awaited. If TIME ≠ 0 in s12, the operation of s13 to s18 is skipped because the timing is not the performance data read timing. Further, in s20, TMP_CTRL
If = 0, the process returns.

If the tempo is not in the tempo control mode, the tempo is not corrected, that is, the tempo coefficient T_COEF is not updated. Note that the tempo control mode flag TMP_CT
When RL is set, the tempo control operation starts from the time when beat event data is read out first after setting, and at that time, TIME, DEL
It is assumed that TA_ACM and INTERVAL have been cleared.

FIG. 6 is a flowchart showing the event handling process. This processing operation is s15 in FIG.
This is executed when the event data is read by reading the performance data. First, the type of the event is determined in s30 to s33. If it is a beat mark event, the operations of s34 to s38 are executed according to the determination of s30. s
34, the tempo control mode flag TMP_CTRL =
It is determined whether it is 1. If TMP_CTRL = 0, the process directly returns without using the tempo control mode and without using beat mark event data for tempo control. If TMP_CTRL = 1, it is determined whether 1 is set in the beat instruction signal generation flag BEAT_RCV (s35). Beat instruction signal generation flag BE
AT_RCV is a flag that is set when a beat instruction signal generated by operating the microphone 30 is input before the beat mark event data in the performance data is read. Therefore, BEAT_RCV = 1
Indicates that the tempo being played is slower than the tempo specified by the operator (see FIG. 3). In this case, before the current beat mark event data is read (at the time when the beat instruction signal is generated), in the beat mark processing (s23: see s55 to s61 in FIG. 7), processing corresponding to the beat mark event data is performed. Is performed, the BEAT_RCV is only reset (s38) and the process returns. On the other hand, BEAT_RCV
If = 0, it is determined that the performance is too fast because the beat mark event data is read before the generation of the beat instruction signal, and the number of the beat mark is stored in the beat number register BEAT_NO (s36), and the pause is performed. The flag PAUSE is set to 1 to temporarily stop the progress of the automatic performance (s37). However, it is assumed that the pronunciation is continued.

If the read event data is a tempo control mode on / off event,
31) The tempo control mode flag TMP_CTRL is set / reset according to the contents of this data (tempo control mode on / tempo control mode off) (s40).
If the read event data is a percussion instrument mode on / off event (s32), the percussion instrument mode flag PERC_CTRL is set / reset according to the content of this data (percussion instrument mode on / percussion instrument mode off) (s41). ). If the read event data is performance event data (s33), the event data is output to the tone generator circuit 27 to perform operations such as sound generation and mute (s42). If any other event data is read, a process corresponding to the other event is executed (s43).

FIG. 7 is a flowchart showing a beat instruction corresponding processing operation. FIG. 8 is a flowchart showing a tempo calculation processing operation executed in the beat mark corresponding processing operation. The beat instruction signal processing operation is an operation for controlling a tempo in response to a beat instruction signal generated by operation of the microphone 30. First, it is determined whether or not a beat instruction signal is generated (s5).
0). If the beat instruction signal has not been generated, the process returns. When a beat instruction signal is generated,
It is determined whether or not the pause flag PAUSE = 1 is currently set, that is, whether or not the beat mark event data of the performance data has been read out first (s51). PAUS
When E = 1, the beat mark event data has been read first, and the number of the beat instruction signal generated and the beat number register BEAT_ stored in the operation of s36.
It is determined whether or not the contents of NO match (s52).
In this case, if BEAT_NO = 0, it is determined that the match is unconditional. If they do not match, it is determined that it is not necessary to follow the tempo instruction, and the routine returns. In this case, BEAT_NO may be cleared. If they match, the user's instruction has caught up with the preceding automatic performance, so that the automatic performance can be restarted, the tempo calculation process (s53) is executed, and then the automatic performance is restarted (s54). Hereinafter, the tempo calculation processing (s53) and the automatic performance restart processing (s54) will be specifically described.

FIG. 8 is a flowchart showing the tempo calculation process. The tempo calculation processing is a processing operation for calculating a new tempo coefficient T_COEF described with reference to FIG. First, in s65, a tempo ratio RATE indicating a ratio between the tempo of the automatic performance and the tempo specified by the user is determined. RA
TE can be obtained by RATE = INTERVAL / DELTA_ACM. In the case of S53, since the beat instruction signal occurs after the beat event data, INTERVAL is larger than DELTA_ACM, and RATE is larger than 1. This RA
To correct the tempo of the previous beat by TE, the tempo coefficient T_COEF of the previous beat is corrected by multiplying by RATE (s6).
6). That is, the calculation of T_COEF = T_COEF × RATE is performed. If RATE> 1, the value of T_COEF increases and the tempo slows. Also, RATE <1
If so, the value of T_COEF becomes smaller and the tempo becomes faster. When T_COEF exceeds the upper and lower limit values by this processing (when the tempo becomes slower than the slowest playable tempo or faster than the fastest playable tempo), T_COEF is clipped to the limit value. A limit process is performed (s67).

In FIG. 7, in the automatic performance resuming process of s54, DELTA_ACM is set to 0, and INT
This is an operation of setting ERVAL to 0 and resetting PAUSE to 0. This makes it possible to restart the automatic performance and count the beat intervals.

On the other hand, if PAUSE = 0 in s51, it means that the beat mark event data has not been read from the performance data yet, that is, the automatic performance tempo is slower than the beat instruction of the user. means. For this reason, the following operation is performed to make the automatic performance catch up with the instruction of the user. First, the performance data is fast-forwarded to search for the next beat mark event data (s5).
5). It is determined whether or not the number of the searched beat mark event data matches the number of the generated beat instruction signal (s56). If they do not match, it is determined that it is not necessary to follow the tempo instruction, and the routine returns. If they match, the DELTA_ACM indicates the position from the current position of the automatic performance (“all delta times up to the searched event data” + TIME) × T_COEF.
Are added (s57). Furthermore, in order to execute the event data between the current automatic performance position fast-forwarded in s55 and the searched event data in a short time, the delta time data is shortened to a predetermined value and the performance is performed (s58). ). Thereafter, when the operations in s13 to s18 are executed, the event up to the searched event is quickly reproduced. Thereafter, BEAT_RCV is set (s59), a tempo calculation process (s60: FIG. 8) is executed, and then DELTA_ACM is set to 0, and INTE_RCM is set.
RVAL is set to 0 (s61), and the routine returns.
In the tempo calculation processing of s60, since the generation of the beat instruction signal by the user was earlier than the reading of the beat mark event data by the automatic performance, the tempo calculation processing of s60 is recalculated so that the tempo becomes faster.

FIGS. 9 and 10 are views for explaining an automatic performance apparatus according to another embodiment of the present invention. In this embodiment, in addition to the configuration shown in the first embodiment, a switch is provided on the microphone 30, and by operating this switch, the tempo control mode and the percussion instrument mode can be freely turned on / off.

FIG. 9 is a diagram showing an example of a microphone used in the automatic performance apparatus. Tempo control switch 31, percussion switch 32,
A solo switch 33 and a bar +/- switch 34 are provided. These switches are connected to a switch detection circuit 19.
(See FIG. 1). Tempo control switch 3
1 and a percussion switch 32 are push-on switches that are turned on only while being pressed. While the tempo control switch 31 is on, the tempo control mode is on,
The percussion instrument mode is on while the percussion switch 32 is on.

The measure +/- switch 34 is a switch for incrementing / decrementing the measure number by one by one click. When the button is pressed for a certain time or more, the value is automatically incremented / decremented continuously.
At this time, the performance data may be reproduced in the forward or reverse direction at a speed corresponding to the speed of the automatic increment / decrement. This enables a quick heading while listening to the sound, similar to the cue / review of the cassette player. At this time, the bar number may be displayed on the operation or the electronic musical instrument body at the same time.

The solo switch 33 is a toggle switch, and the playback of the solo part is turned on / off every time the switch is pressed. The solo part is, for example, a part such as a karaoke guide melody. In response to this, on / off of the solo part may be displayed on the main body or the operation unit. Also, the switch itself is composed of a mechanical toggle switch,
The on / off state may be visually checked, for example, when the switch is turned on, the switch may be pressed. Further, another switch may be provided so that a part or a track number to be turned on / off can be designated. In addition, not only the on / off of the solo part, but also three kinds of switching of only the solo, on / off of the solo, and reproduction of all tracks may be adopted. In addition, following degree adjustment,
Key up / down, fine pitch adjustment, recording of tempo control data /
A function key such as live switching may be mounted.

In addition to these switches, a numeric keypad may be provided so that the bar number of the jump destination, the track number to be turned on / off, the tempo value of the automatic reproduction mode, and the like can be directly input by numbers.

FIG. 10 is a flowchart showing a switch processing operation when the microphone 30 turns on / off the tempo control mode and the percussion instrument mode.

FIG. 7A shows the tempo control switch processing operation. If there is an ON event of the tempo control switch 31, the process proceeds to s71 in the judgment of s70, and the tempo control mode flag TMP_CTRL is set. Also, if there is an off event of the tempo control switch 31, s7 is determined in s72.
Proceed to 3 to reset the tempo control mode flag TMP_CTRL.

FIG. 8B shows a percussion instrument switch processing operation. If there is an ON event of the percussion switch 32, s75
The process proceeds to s76 with the judgment of, and the percussion instrument mode flag PERC_
Set CTRL. If there is an off event of the percussion instrument switch 32, the process proceeds to s78 in the judgment of s77, and the percussion instrument mode flag PERC_CTRL is reset. Thus, the tempo control switch 31 and the percussion switch 3
Reference numeral 2 denotes a push-on switch, but a toggle operation that switches on / off each time the switch is pressed may be performed. Further, it may be constituted by a slide switch.

4 to 8 are determined based on the tempo control mode flag TMP_CTRL and the percussion instrument mode flag PERC_CTRL set by the above operation.

The tempo control mode flag TMP_CTRL and the percussion instrument mode flag PERC_C shown in FIG.
The on / off operation of the TRL is the event corresponding operation of FIG.
That is, instead of reading out tempo control mode on / off event data or percussion instrument mode on / off event data in performance data and automatically turning on / off each mode, the present invention may be applied to an automatic performance device. 6 and the operation of FIG. 10 may be executed in parallel, that is, the processing operation generated later may be prioritized.

FIG. 11 is a flowchart showing a third embodiment of the present invention. In this operation, in the configuration of the first embodiment, tempo control mode on / off event data is not written in the performance data, and a process of accepting tempo control when no singing voice is input from the microphone 30 is performed.

First, it is determined at s80 whether an audio signal is input from the microphone 30. If there is an audio signal input (or if it is equal to or greater than the predetermined value), the process proceeds to s81 to reset the tempo control mode flag TMP_CTRL. On the other hand, if there is no audio signal input (or if it is equal to or less than the predetermined value), it is determined whether or not the state where there is no audio signal input has continued for a certain period of time (s82). If it has been longer than a certain time, the tempo control mode flag TMP_CTR
L is set (s83). With this operation, it is possible to automatically switch to the tempo control mode in a part where no singing is performed for a certain period of time such as interlude in karaoke or the like. In this embodiment, the tempo control mode is turned on / off based on the presence or absence of a singing input from the microphone 30.
The percussion instrument mode may be turned on / off.

When a singing voice signal is input from the microphone 30, the tempo control mode may be turned on and the tempo control mode may be turned off by a switch.

FIG. 12 shows a fourth embodiment of the present invention.
In this embodiment, a plurality of microphones having a built-in swing sensor are provided,
A microphone having a large swing amount is detected, and tempo control by the microphone is received. This embodiment shows an example in which two microphones are connected.

First, the output of the swing sensor of the first microphone is fetched (s90), and the average output value of the past several times is obtained (s91). Next, the output of the swing sensor of the second microphone is fetched (s92), and the output average value of the past several times is obtained (s93). Based on the obtained output average value, the microphone having the larger output average value is selected (s94). Based on the selected output, the peak detection and the generation of the beat instruction signal shown in FIG. 4 are performed (s96). This processing is performed at regular intervals (for example, every second), and the selection of the control microphone is updated.

In the above embodiment, the microphone is selected based on the sensor output. However, the microphone may be selected by switching a switch. Further, three or more microphones may be used.

It should be noted that the present invention may have the following configuration in addition to the configuration described in the above embodiment.

Although the tempo control on / off event and the percussion instrument on / off event are mixed in the performance data, they may be provided separately from the performance data.

The tempo control / percussion instrument sound generation may be simply set by a switch provided on the microphone (oscillating operation element).

The performance data is the event data plus the delta time, but other storage methods may be used. For example, event + absolute time, and delta time is m
Although stored in units of s, the length of the note (1/2 of a quarter note)
4).

Although the tempo is controlled by multiplying the value of the delta time by the tempo coefficient and increasing or decreasing the value of the delta time, the tempo may be changed by changing the processing cycle. When the value of the delta time is changed, the value is not limited to multiplication by a predetermined value, but may be addition.

Further, only the control of the beat timing may be performed without changing the tempo.

The present invention is not limited to a normal automatic performance, but may be an automatic accompaniment or an automatic rhythm performance, or may be accompanied by a video (moving image or still image) such as karaoke.

Although the beat instruction signal (tempo control signal) is generated based on the rocking motion, the tempo control signal may be generated by tapping operation or performance operation.

The sensor for detecting the swinging operation is not limited to the piezoelectric vibrating gyro sensor, but may be an acceleration sensor or a sensor using magnetism or light. It is also possible to take an image of the swing operation and detect the swing operation by image processing.
A plurality of types of sensors may be used in combination. Also,
Although the operation is detected using two gyro sensors, the operation may be detected using three or more gyro sensors. For example, for three beats
A different sensor may be used for the 2/4 meter, or the operation may be detected by comprehensively judging the outputs of three or more sensors.

The method of detecting characteristic points (peaks and valleys) is not limited to the method of the embodiment. The feature points may be detected using other conditions.

The types of swinging motions to be detected are not limited to the three types in the embodiment, and more types of motions may be detected. For example, all four beats may be detected as different actions.

A tempo clock may be supplied to the external device to control the performance tempo of the external device.

Except for switching on / off the tempo control according to the microphone input, the present invention is not limited to the one built in the microphone. For example, as a form of the sensor, a dedicated beat instruction signal generator (such as a baton) is built in,
It is conceivable to attach the sensor to the body (such as a hand) or to incorporate the sensor into a remote controller of a device (such as a karaoke device).
At this time, the transmission of the sensor output to the tempo control device may be performed wirelessly or by wire.

In addition to controlling the tempo, other music characteristics such as volume and tone may be controlled. For example, the sound volume may be controlled according to the speed of the swing operation.

[0075]

As described above, according to the first aspect of the present invention,
So to enable / disable the automatic playback of control in accordance with the progress of the song, for example, intro and interlude, enables specific only playback control period of time, such as ending, in the case of a reproduction of a karaoke song, and singing Compatibility with playback control such as tempo control can be achieved.

According to the invention of claim 2, reproduction control such as tempo control and generation of musical sounds such as percussion sounds are turned on / off.
Since it can be turned off, it is possible to determine the tempo during the intro, and to enjoy effects such as percussion instrument sounds / applause at the time of interlude or ending. It will also help to eliminate the lack of music during the interlude and ending periods. When turning on / off by a switch operation, these can be switched at a timing intended by the user.

In this case, the on /
By embedding the OFF data, the user can perform appropriate switching without worrying about details.

According to the third aspect of the present invention, the swing sensor is built in the microphone, and whether or not the playback control is performed by the swing sensor is switched according to the presence or absence of a voice input from the microphone. Tempo control can be performed only during periods when it is not. That is, when singing, the user can sing without worrying about the movement of the microphone. Since it is built into the microphone, there is also an effect that a separate swing operation element is not required.

According to the fourth aspect of the present invention, it is possible to select which of a plurality of microphones is used for reproduction control. For example, if the present invention is applied to a karaoke apparatus, a person who sings can control the tempo or the like by himself. You can enjoy the game in a variety of ways, such as playing a tempo by a person who does not sing or controlling the tempo and a singer following it.
In this way, people who do not sing can also enjoy. In this case, by performing the reproduction control using the one having the largest swing output as in the invention of claim 5 , an operation which swings for control without troublesome switching operation is required. The child can be selected accurately.

[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 diagram for explaining a method of performance data and a tempo instruction used in the automatic performance apparatus.

FIG. 3 is a view for explaining a tempo control method of the automatic performance apparatus.

FIG. 4 is a flowchart showing the operation of the automatic performance apparatus (timer interrupt operation).

FIG. 5 is a flowchart showing the operation of the automatic performance apparatus (reproduction processing operation).

FIG. 6 is a flowchart showing the operation of the automatic performance apparatus (operation corresponding to an event).

FIG. 7 is a flowchart showing the operation of the automatic performance apparatus (beat instruction corresponding operation).

FIG. 8 is a flowchart showing the operation of the automatic performance apparatus (tempo calculation processing operation).

FIG. 9 is a diagram showing a configuration of a microphone used in a second embodiment of the present invention.

FIG. 10 is a flowchart showing a partial operation of the second embodiment.

FIG. 11 is a flowchart showing a partial operation of a third embodiment of the present invention.

FIG. 12 is a flowchart showing a partial operation of the fourth embodiment of the present invention;

[Explanation of symbols]

 23, 26-piezoelectric gyro sensor (oscillation sensor) 30-microphone 31-tempo control switch 32-percussion switch

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shigehiko Mizuno 10-1 Nakazawa-cho, Hamamatsu-shi, Shizuoka Prefecture Yamaha Corporation (56) References JP-A-4-242298 (JP, A) JP-A-6-204 342282 (JP, A) JP-A-3-213895 (JP, A) JP-A-62-278594 (JP, A) JP-A-4-275593 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G10H 1/00 101-102 G10H 1/053 G10K 15/00-15/06

Claims (5)

(57) [Claims] 1. A storage means for storing performance data including a reproduction control mode on data and a reproduction control mode off data; an operator operated during reproduction of the performance data; Data playback tempo
Control, or to control the beat timing <br/> grayed without changing the reproduction tempo and reproduction control means, when said performance data reproducing, the reproduction control means when said reproduction control mode ON data is read Enable
An automatic performance device, comprising: mode on / off means for invalidating the reproduction control means when the reproduction control mode off data is read. 2. A reproduction control mode on data, a reproduction control mode
Mode off data, tone generation mode on data and tone
Storage means for storing performance data including generation mode off data; a rocking operator operated during reproduction of the performance data; and a reproduction control mode on data during reproduction of the performance data.
Turn on playback control mode when issued
Turn off playback control mode when off data is read
When the tone generation mode on data is read out,
Turn on the tone generation mode and read the tone generation mode off data.
Mode on / off means for turning off the tone generation mode when output, and reproduction control means for controlling reproduction of the performance data in accordance with the operation of the rocking operator when the reproduction control mode is on, An automatic performance device comprising: a tone generation unit configured to generate a tone other than the playback sound of the performance data in response to an operation of the swing operation element when a tone generation mode is turned on. 3. A storage device for storing performance data; a microphone having a built-in swing sensor; and a microphone input when reproducing the performance data.
Input detection means for detecting a sound signal to be input; control means for controlling reproduction of performance data in accordance with a detection value of the swing sensor; and effecting the control means in accordance with the detection content of the input detection means And a mode on / off means for disabling / disabling the automatic performance device. 4. A storage device for storing performance data, a plurality of microphones each having a built-in swing sensor, a selection device for selecting one microphone from the plurality of microphones, and a microphone selected by the selection device. A reproduction control means for controlling reproduction of the performance data in accordance with a detection value of a built-in swing sensor. 5. A storage device for storing performance data, a plurality of swing operators operated during reproduction of the performance data, and an operation of selecting the largest one of the plurality of swing operators. An automatic performance apparatus comprising: a child selection unit; and a reproduction control unit that controls reproduction of the performance data in accordance with an operation of the operator selected by the operator selection unit.