JPH07104742A - Sound image localization controller - Google Patents

Abstract

PURPOSE:To provide a sound image localization controller which can perform localization control over a specific sound image while maintaining localization relation among sound image. CONSTITUTION:A CPU 1 constitutes a center track specifying means, a localization varying means, and a localization control means. The center track specifying means specifies a 1st reproduction track selected by an operation element 5 among plural reproduction tracks, as the center of localization, and the localization varying means sets the sound image of the 1st reproduction track in the center of localization and also adds a localization variation quantity (y) when the 1st reproduction track is varied to the center of localization to respective pieces of localization information PAN of a group of other tracks. The localization control means while holding the sound image of the 1st reproduction track in the center of localization performs the localization control over the respective sound images of other reproduction tracks according to musical performance information and also displays the localization states by the reproduction tracks through a display circuit 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound image localization control device suitable for use in, for example, an automatic performance device that reproduces performance information and automatically performs it.

[0002]

2. Description of the Related Art In recent years, various types of automatic performance devices have been put into practical use in which performance information is stored in the order of progression of music pieces and sequentially read out at a predetermined tempo for automatic performance. This kind of device is provided with a plurality of reproduction tracks associated with each performance part, and an internal sound source synthesizes musical instrument sounds of various tones according to the performance information output from each reproduction track, and simultaneously produces multiple sounds. Is configured. The performance information referred to here is composed of musical tone data representing the pitch and sounding timing of each note to be played, and performance effect parameters representing the effect processing to be applied to each reproduction track.

Now, in such an automatic performance device, various effects are often applied to the musical sound reproduced based on the above-mentioned performance effect parameters. In particular, in automatic performance, "panning" is performed to localize the sound image of each musical instrument sound in a form that matches the actual performance state. With this, for example, the sound image of the melody instrument sound is localized,
It is possible to obtain a performance effect of localizing each sound image of an accompaniment instrument sound (chord, bass, rhythm) to a desired position. It should be noted that the sound image of the musical sound reproduced in stereo is localized according to the level difference in hearing.

A sound image localization control device is known as a device for locating a sound image of a reproduced musical sound, and the device localizes the sound image according to the panning information set for each reproduction track. This panning information specifies how to localize the musical tone of the tone color (musical instrument sound) assigned to each reproduction track, and has a fixed value for each automatically played musical piece. That is, the sound image localization of each musical instrument sound is determined in advance prior to playing. Further, it is possible to control the sound image localization by changing the panning information during the performance, but in this case, only the musical tones of the timbre assigned to the specific reproduction track are localized.

[0005]

By the way, in the above-mentioned conventional sound image localization control device, since only a specific sound image is independently localized, it is not possible to perform localization control while maintaining the overall sound image localization relationship. In other words, when viewed as a performance effect, each sound image is not independent, but the sound images of each timbre (or each performance part) are related to each other, giving the broadening and depth of the entire musical sound to be reproduced, and It also embodies musical effects such as ensembles. Therefore, in view of these points, instead of simply controlling the localization of only a specific sound image, for example, when localization is performed around a predetermined performance part, each other performance part is localized while maintaining the original sound image relationship. Will be required. In other words, in other words, the conventional sound image localization control device has a problem that it is not possible to perform localization control of a specific sound image while maintaining the localization relationship of each sound image. Therefore, an object of the present invention is to provide a sound image localization control device capable of controlling the localization of a specific sound image while maintaining the localization relationship of each sound image.

[0006]

In order to achieve the above object, the invention according to claim 1 controls the sound image position for each of a plurality of reproduction tracks stereo-reproduced according to performance information supplied from the outside. The sound image localization control apparatus further comprises a selection operator for selecting one of the plurality of reproduction tracks, and a center track designating means for designating the first reproduction track selected by the selection operator as a localization center. A localization in which the sound image of the first reproduction track is set to the localization center and the localization change amount when the first reproduction track is changed to the localization center is offset to each localization position of another reproduction track group. The changing means maintains the sound image of the first reproduction track at the center of localization, and the sound images of the other reproduction track groups in which the localization change amount is offset according to the performance information. It is characterized by comprising a localization control means for position control.

According to the second aspect of the invention, in the sound image localization control device for controlling the sound image position of each of a plurality of reproduction tracks stereo-reproduced according to the localization information supplied from the outside, the plurality of reproductions are performed. Center track designating means for designating a first reproduction track, which is selectively selected by any one of the plurality of selection operators, as a center of localization, , The first
The first localization information corresponding to the reproduction track is changed to a localization center value indicating the localization center, and the difference value between the first localization information and the localization center value is used as localization information of other reproduction track groups. While controlling the localization of the sound image of the first reproduction track according to the localization center value, and the localization control according to the localization information of the other reproduction track group to which the difference value is added. , And a localization control means for displaying the localization state of each reproduction track as a level.

Further, as a preferred mode, according to the invention as set forth in claim 3, the plurality of selection operators are alternately set to an on / off state according to an operation, and when a plurality of on operations are performed. Is characterized by being selected with the last arrival priority. According to the invention of claim 4, the localization changing means includes localization information supplied from the outside and the first localization information, and the localization information of each of the other reproduction track groups includes the difference value. It is characterized by comprising a temporary storage means for temporarily storing the internal localization information to which is added.

According to the fifth aspect of the invention, the localization control means is based on the internal localization information including the first localization information when the center track designating means designates the first reproduction track. The sound image of the first reproduction track is controlled to be the center of localization while maintaining the sound image localization relationship of each reproduction track. The feature is that the sound image of the reproduction track is localized. further,
According to the sixth aspect of the present invention, in the localization control means, when the center track designating means designates the first reproduction track and the localization information sequentially changes according to the progress of music, The sound image of the other reproduction track group is localized in proportion to the change of the localization information while maintaining the sound image of the first reproduction track at the localization center.

[0010]

In the present invention, the center track designating means is selected by the selection operator from the plurality of reproduction tracks.
The playback track of is specified as the localization center, and the localization changing means sets the sound image of the first reproduction track as the localization center, and
The localization change amount when the first reproduction track is changed to the localization center is offset to each localization position of another reproduction track group. Then, while the localization control means maintains the sound image of the first reproduction track at the center of localization, the localization control is performed for each sound image of the other reproduction track group in which the localization change amount is offset according to the performance information, and each reproduction image is reproduced. The localization status for each track is displayed. As a result, it is possible to localize the sound image of a specific playback track while maintaining the localization relationship of the sound image of each playback track, rather than simply controlling the sound image corresponding to a specific playback track as in the past. become.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. A. Configuration of Embodiment FIG. 1 is a block diagram showing a configuration of an automatic performance device to which a sound image localization control device according to an embodiment of the present invention is applied.
In the figure, 1 is a CPU that controls each part of the apparatus, and its operation will be described later. Reference numeral 2 denotes a ROM in which various control programs loaded in the CPU 1 and various parameters for tone control are stored. Reference numeral 3 denotes a RAM used as a work area of the CPU 1, in which various calculation results, register / flag data, performance effect parameters described later, and the like are temporarily stored.

Now, the performance effect parameters temporarily stored in the RAM 3 will be described with reference to FIG. The performance effect parameter is supplied as performance information 4a described later from an external sequencer (not shown), and is written in a predetermined area of the RAM 3 under the control of the CPU 1 via the external interface circuit 4. As shown in FIG. 2, the performance effect parameters are tone color name TC and volume VO.
L, localization information PAN, sustain level SUS, pitch P
It is composed of ITCH, reverb level REVB and internal localization information INTPAN, and these are assigned to each reproduction track. Among these parameters, in the sound image localization control device according to the present invention, the sound image of the musical instrument sound corresponding to each reproduction track at the beginning of the musical sound reproduction is localized in accordance with the initially set localization information PAN, and the internal operation is performed based on the operation described later. With reference to the localization information INTPAN, localization control of a specific sound image is performed while maintaining the localization relationship of each sound image.

Next, the configuration of the embodiment will be described again with reference to FIG. The external interface circuit 4 supplies the performance information 4a supplied from the outside to the bus B. The performance information 4a is information supplied from an external sequencer, and is composed of musical tone data representing the pitch and sounding timing of each note to be automatically played, and the above-described performance effect parameters. Reference numeral 5 denotes an operator which is composed of a plurality of operation switches arranged on the operation panel. The operating element 5 includes, for example, a start / stop switch for instructing start / stop of automatic performance, and a center set switch 5a-0 for localizing a sound image of a specific reproduction track.
.About.5a-7 (described later) and the like, each of which generates a switch signal corresponding to a setting operation and supplies the switch signal to the bus B.

A display circuit 6 is composed of an LCD (liquid crystal display element), an LED (light emitting element), etc., and displays various display data supplied from the CPU 1. Reference numeral 7 is a tone generation unit configured by a well-known waveform memory reading method,
The musical tone corresponding to the above-mentioned performance information is synthesized for each reproduction track, and a musical tone signal subjected to effect processing (reverb, sound image localization, etc.) according to the performance effect parameter is generated. Reference numeral 8 is a D / A which converts the musical tone signal generated for each reproduction track by time division operation into an analog signal and outputs it.
It is a converter. 9 is L output from the D / A converter 8
This is a sound system that amplifies the tone signals of the (left) channel and R (right) channel components and reproduces them in stereo from a speaker SP (not shown).

Next, referring to FIG. 3, the structures of the operator 5 and the display circuit 7 arranged on the operation panel P will be described. The display circuit 7 includes localization display sections 7a-0 to 7a-7 in which 17 LEDs are arranged, and these localization display sections 7a-0 to 7a-7 display the sound image localization position for each reproduction track. . In this figure, the sound image of each reproduction track is localized by using the localization information PAN shown in FIG. 2 as an example. The correspondence between the localization information PAN and the localization display mode will be described later.

Center set switches 5a-0 to 5a-7
Are arranged so as to correspond to the respective reproduction tracks [0] to [7] (hereinafter, track numbers are indicated as [0] to [7]). These switches 5a-0 to 5a-7 are
It operates on and off in the alternate mode and is set with priority on the last arrival. That is, the center set switches 5a-0 to 5a-7 for locating the sound image of a specific reproduction track as the center cannot select a plurality of reproduction tracks at the same time, and specify only one of the reproduction tracks with last arrival priority. The status of each center set switch 5a-0 to 5a-7 is
A flag is set in the on / off register OF (8 bits) of the RAM 3 each time a switch event occurs. Further, the track designation display portions 7b-0 to 7b-7 which are turned on according to the ON setting of these switches 5a-0 to 5a-7.
Are arranged in the vicinity of the switches 5a-0 to 5a-7.

Next, the correspondence between the localization information PAN and the localization display mode will be described with reference to FIG. First, the localization information PAN takes 128 steps from "0" to "127",
The sound image shifts to the right as the value increases with "64" as the localization center. On the other hand, as the numerical value decreases from "64", the sound image shifts to the left. Therefore, as shown in FIG. 3, the localization display section 7a- formed by arranging 17 LEDs.
In 0 to 7a-7, for example, the localization information PAN is "0" to
When in the range of "7", as shown in FIG. 4A, the leftmost LED is turned on to perform localization display. And the localization information P
Each time the AN increases by 8 steps, the LED lighting position shifts one position to the right. When the localization information PAN is "64", the central LED lights up as shown in FIG. After that,
Every time the localization information PAN increases by 8 steps, the lighting position of the LED shifts one position to the right, and the localization information PAN is "120"-
When "127" is reached, the LE on the right end is displayed as shown in FIG.
D lights up.

B. Operation of Embodiment Next, the operation of the embodiment having the above configuration will be described with reference to FIGS.
Will be described with reference to. Here, as the operation of the sound image localization control device in the process of reproducing the performance information,
Cases will be described separately for (a) the localization information PAN does not change, (b) the center set switch 5a is operated, and (c) the localization information PAN changes.

(A) Operation when the localization information PAN does not change First, when the power is turned on in this embodiment, the CPU 1 causes R
A predetermined control program is loaded from OM2, the main routine shown in FIG. 5 is started, and the process proceeds to step SA10. In step SA10, various registers and flags set in the RAM 3 are initialized. In this initialization, the initial performance effect parameters preset in the ROM 2 are read out, and these are reserved in a predetermined area of the RAM 3 for registers TC [0] to [7] for each reproduction track,
VOL [0]-[7], PAN [0]-[7], SUS
[0] to [7], PITCH [0] to [7], REVB
It is sequentially written in [0] to [7] and INTPAN [0] to [7].

When the initialization is performed in this way, the CPU 1 proceeds to step SA12 and waits until the start switch is set to the ON state. As described above, the start switch is a switch for starting the automatic performance according to the performance information supplied from the external sequencer.
When the external sequencer is ready and the operator generates a start switch-on event, the determination result of step SA12 is "YES", and the process proceeds to step SA14. At step SA14, the performance effect parameters (see FIG. 2) for each reproduction track are extracted from the performance information fetched via the external interface circuit 4, and these are extracted from the registers TC [0] to RAM [3] of the RAM3.
[7], VOL [0]-[7], PAN [0]-
[7], SUS [0]-[7], PITCH [0]-
[7], REVB [0]-[7] and INTPAN
The data is sequentially stored in [0] to [7]. That is, the initial parameter set in each register is rewritten to the performance effect parameter corresponding to the performance information.

Next, the processing of the CPU 1 is step SA1.
When proceeding to step 6, "0" corresponding to the first reproduction track is set in the register i for temporarily storing the reproduction track number,
Then, the process proceeds to step SA18. In step SA18,
It is determined whether the performance information of the reproduction track "0" has changed, that is, whether the performance information supplied at the predetermined tempo has been updated. Here, when the performance information is updated, the determination result is “YES”, and the process proceeds to step SA20. On the other hand, if the performance information has not been updated, the determination result is "NO" and the process proceeds to step SA26 described later.
In step SA20, it is determined whether or not the updated performance information is localization information PAN. In this case, the localization information PAN does not change, so the determination result is "N.
It becomes "O" and proceeds to step SA24. Then, when proceeding to step SA24, the CPU 1 supplies the updated performance information to the musical sound generating section 7. As a result, the musical sound corresponding to the updated performance information is reproduced from the reproduction track [0].

When the musical tone of the reproduction track [0] is reproduced according to the performance information in this way, the CPU 1 advances the processing to step SA26, and operates the center set switch 5a-0 corresponding to the reproduction track [0]. It is determined whether or not there is an instruction to localize the musical sound of the reproduction track [0] as a center. In this case, the ON event of the center set switch 5a-0 is not generated. Becomes "NO", and step SA30
Proceed to. In step SA30, it is determined whether or not the stop switch has been turned on. Here, if the on event of the stop switch for stopping the automatic performance does not occur, the determination result is "NO", and the next step S
In step A32, the value of register i is incremented by 1.

Then, in step SA34, the CP
U1 determines whether the value of the register i is "7" or more. In this case, the value of register i is "1",
The result of this determination is "NO", and the above-mentioned step SA
Returning to 18, the sounding process similar to the above is performed on the reproduction track [1]. Then, when the value of the register i is "7" or more, that is, when the sound generation process for the reproduction track [7] is completed, the determination result of step SA34 becomes "YES", the process returns to step SA16, and the reproduction tracks [0] to [0] are again reproduced. 7] is performed in sequence. If the stop switch is operated in the middle of the sound generation process, the above-mentioned determination result of step SA30 becomes “YES” and the process returns to step SA12.
It will be in a performance standby state. In this way, when the localization information PAN does not change or when the center set switch 5a is not operated, sound generation processing (automatic performance) according to the performance information supplied from the external sequencer is performed, and at that time, each reproduction track is reproduced. The sound images of [0] to [7] are registered in the register INTPAN [0] in step SA14 described above.
~ Localize according to the value set in [7].

(B) Operation when the center set switch 5a is operated Next, in the state where the tone generation processing (automatic performance) according to the performance information supplied from the external sequencer is being performed, for example, the reproduction track [0 ] Center set switch 5a
It is assumed that −0 is turned on. Then, the determination result of step SA26 described above becomes "YES", and the process proceeds to step SA28. When it proceeds to step SA28, the CPU
1 starts the center set changing routine shown in FIG. 6 and executes step SB10. In step SB10, it is determined whether or not the other center set switch 5a is already in the ON state. In this case, since the first ON operation is performed, the determination result is "NO", and the next step SB
The process proceeds to 12.

At step SB12, the center set switch 5a-0 is turned on and each switch 5a-0.
The corresponding bit of the on / off register OF for storing the on / off status of 5a-7 is set to "1" to set an on flag, and the track designation display portion 7b-0 is turned on in response to this. Then, further, the value of the localization information stored in the register PAN [0] is read out, the difference value from the central value “64” is calculated and set in the difference register y, and the reproduction track is written in the register INTPAN [0]. [0]
"64" is set as the value of the internal localization information of. For example, if the localization information PAN of the reproduction track [0] is the value "84" shown in FIG. 2 before the center setting, the center set switch 5a-0 is turned on,
The difference "-20" between the initial value "84" of the localization information PAN and the central value "64" is set in the difference register y, and "64" is set in the register INTPAN [0]. Therefore, the value of the difference register y corresponds to the localization offset value that moves the sound image of another reproduction track with the center set of the reproduction track [0].

Next, the processing of the CPU 1 proceeds to step SB14.
When the process goes to step, the value of the register k is reset to zero, and the process proceeds to the next step SB16. In step SB16, it is determined whether or not the value of the register k matches the center set reproduction track number. In this case, since the selected reproduction track number is "0", the determination result is "YES",
In step SB20, the value of the register k is incremented by 1. Then, when proceeding to the next step SB22,
It is determined whether or not the value of the register k is "7" or more.
Here, if the determination is not made for all the reproduction tracks [0] to [7], the determination result is “NO”, and the process returns to step SB16 described above. Then, when the value of the register k does not match the center set playback track number, that is, when the playback track is not center set, the determination result of step SB16 becomes "NO", and the process proceeds to step SB18. Proceed.

At step SB18, the localization offset value is added to the internal localization information INTPAN of the reproduction track which is not center set. That is, in the above example, the reproduction track [0] is set to the center and the register INT
The value of PAN [0] becomes "64", and in the following reproduction track [1], the movement localization offset value "-20" is added to the original localization information "44" by the operation of step SB18.
Is added and the value of the register INTPAN [1] becomes “2.
4 ”.

In this way, the internal localization information INTPAN of all reproduction tracks that are not center-set are sequentially
When the localization offset value is added, the above step S
The determination result of B22 is "YES", and the processing of the CPU 1 proceeds to step SB28. In step SB28, the sound image for each reproduction track is localized according to the values of the registers INTPAN [0] to [7] to which the center set or localization offset value has been added, and the localization display section 7a-0 correspondingly. The localization display of 7a-7 (see FIG. 3) is updated. As a result, in the case of the above example, the register INTP
"24", "34", and AN [1] to [7], respectively.
"80", "40", "44", "10" and "5"
4 ”, the sound images of the reproduction tracks [1] to [7] are shifted to the left while maintaining the original sound image localization relationship with the sound image of the reproduction track [0] as the localization center.

Next, in such a state, the reproduction track [1]
Center set switch 5a-1
Suppose that you turned on. In this case, since the center set switch 5a has the latter arrival priority, the switch 5a-0 that was previously turned on is turned off, and the switch 5a-1 is set to the on state (center set state). As a result, the determination result of step SB10 described above becomes "YES",
The process proceeds to step SB24. In step SB24, it is determined whether or not the reproduction track number centered first and the reproduction track number centered next match. In this case, since they do not match, the determination result is "NO", and the operations in and after step SB12 described above are executed. As a result, in the same manner as described above, the reproduction track [0], [2] to [7] are maintained with the sound image of the reproduction track [1] being the localization center and the original sound image localization relationship being maintained.
Each sound image of shifts to the right by the localization offset.

Next, the center set switch 5a-1 is again used.
Is turned on, the above-mentioned steps SB10 and SB2
All the determination results of 4 are "YES", the process proceeds to step SB26, and the switch-off process is performed. As described above, the center set switch 5a is a switch that is turned on and off in an alternate manner, so that it is turned off when operated in the on state. Then, as the center set switch 5a is turned off, the register PAN [0]
~ Localization information PAN of each reproduction track set in [7] is stored in the corresponding register INTPAN [0] ~
Transfer to [7]. As a result, the sound image of each reproduction track returns to the localization state before the center set switch 5a was operated. Then, step SB28
Then, the sound image before centering is displayed in a localized manner, and this routine ends.

(C) Operation when localization information PAN changes Next, when the localization information PAN changes, when a predetermined reproduction track is center-set, and the localization information PAN of the reproduction track changes. The operation will be described. Operation when the localization information PAN changes Now, for example, it is assumed that the localization information PAN corresponding to a predetermined reproduction track among the performance information supplied from the external sequencer has changed due to a program change or the like. Then, the determination result of the above-described step SA20 (see FIG. 5) becomes “YES”, and the process proceeds to step SA22. When proceeding to step SA22, the CPU 1 activates the localization information changing routine shown in FIG. 7 and executes step SC10.

Here, for example, the reproduction track number [5]
If the localization information PAN of is changed, step SC1
In 0, the changed localization information PAN is registered in the register PA.
The value of N [5] is set, and the process proceeds to the next Step SC12. In step SC12, the center set switch 5a
It is determined whether or not is turned on, but in this case, since the on operation is not performed, the determination result is “NO”.
Then, the process proceeds to the next step SC14 (see FIG. 8). At step SC14, the updated register PAN [5] is updated.
Is set in the register INTPAN [5]. As a result, the sound image of the musical sound of the reproduction track [5] is localized according to the value of the register INTPAN [5]. Then, the process proceeds to the next Step SC16 and registers INTPA
The localization display is updated according to the value of N [5].

Operation when a predetermined reproduction track is center-set and the localization information PAN of the reproduction track changes. Next, for example, the reproduction track [5] is center-set and the reproduction track [5] is set. The operation when the localization information PAN of (3) changes in the order of “60”, “50”, and “40” will be described. Note that the localization information PA of each reproduction track [0] to [7] before the reproduction track [5] changes.
It is assumed that N is set to each value shown in FIG. First, as described above, in step SC10, the value "60" of the updated localization information PAN is set in the register PAN [5], and then the process proceeds to step SC12. In step SC12, the center set switch 5a
It is determined whether or not is set to the ON state. In this case, the determination result is "YES" because it is set to the ON state.
Then, the process proceeds to step SC18.

In step SC18, it is determined whether or not the center set reproduction track [5] and the reproduction track whose localization information PAN changes are coincident with each other. In the case of the above example, since both match, the judgment result is "YES".
Then, the process proceeds to step SC20. At step SC20, the value "60" of the localization information stored in the register PAN [5] is read, the difference value (localization offset value "+4") from the central value "64" is calculated, and set in the difference register y. At the same time, the value “64” is set in the register INTPAN [5]. Next, when the processing of the CPU 1 proceeds to step SC22, the value of the register j is reset to zero, and the processing proceeds to next step SC24.

In step SC24, it is determined whether or not the value "0" of the register j matches the center set reproduction track number. In this case, since the center set reproduction track number is "5", the determination result is "NO", and the process proceeds to the next step SC26. Step SC26
Then, the internal localization information INTPAN of the reproduction track [0]
The localization offset value “+4” is added to. That is, in the above example, in the reproduction track [0], the moving localization offset value “+4” is added to the initial localization information “84”, and the value of the register INTPAN [0] becomes “88”.

Then, in step SC28, the CP
U1 increments the value of the register j by 1, and proceeds to the next step SC30. In step SC30, it is determined whether or not the value of the register j is "7" or more. In this case, the value of the register i is "1", and the judgment result is "N".
It becomes "O" and returns to step SC24 described above. Then, after that, if the value of the register j does not match the center-set reproduction track [5], this step SC
The judgment result of 24 becomes "NO", and the above-mentioned step S
The process is repeated from C24 to SC30.

As a result, the localization information PAN of the center-set reproduction track [5] has the value "6" representing the center localization.
4 ”, and the other reproduction tracks [0] to [4], [6]
In the localization information PAN of [7] to [7], the localization offset value “+4” is added to each of the initial values shown in FIG.
It becomes the value shown in (a). After that, the processing of the CPU 1 proceeds to step SC32, where the center set or the localization offset value of the register INTPAN is added.
The sound image of each reproduction track is localized according to the values of [0] to [7], and the localization display is updated accordingly. Then, under the above operation, if the localization information PAN of the reproduction track [5] changes to “50” and “40” sequentially,
Each reproduction track [0] has the relationship shown in FIGS.
~ [7] localization information PAN transits. That is, even if the sound image of a predetermined reproduction track is fixed at the center of localization and the localization information PAN of the reproduction track changes, the sound image of the reproduction track remains the center of localization, and the reproduction track is kept. That is, it is possible to control the sound image of another reproduction track in proportion to the change in the localization information PAN of.

By the way, in the above-mentioned step SC18, the center set reproduction track and localization information PA
If the reproduction track in which N changes does not match, the determination result here is "NO", and the routine proceeds to step SC34. At step SC34, the localization offset value is added to the value of the register PAN [changed track number] and set in the register INTPAN [changed track number]. The localization offset value at this time is the value obtained in step SB12 (see FIG. 6) of the center set changing routine described above. And the register INTPAN
The sound image of the corresponding reproduction track is localized based on the value of [changed track number]. After this, step SC1
Go to 6 and register INTPAN [change track number]
The localization display is updated according to the value of.

As described above, according to the above-described embodiment, even when a predetermined reproduction track is center-set and the localization information PAN of the reproduction track changes,
Since an arbitrary reproduction track is used as the center of localization and the localization information of other reproduction tracks is relatively offset according to the amount of change in the localization information PAN of this reproduction track, it is specified while maintaining the localization relationship of each sound image. It becomes possible to control the localization of the sound image of. Therefore, for example, when automatically playing performance information created by inputting an actual ensemble performance or orchestra performance in real time, the sound image of the desired part or instrument sound is localized with one touch by the operation of the sound image localization control device described above. In that case, since the sound image localization is controlled so that the sound images of the other parts and the musical instrument sounds are kept in a relative localization relationship, a natural musical tone reproduction without a musical incongruity can be achieved.

In the above-described embodiment, the case where the sound image localization control device according to the present invention is applied to the automatic performance device has been described, but the present invention is not limited to this, and is supplied from, for example, an external MIDI musical instrument. It is also possible to apply the sound image localization control device of the present invention to an electronic musical instrument that synthesizes a musical sound based on a MIDI signal that is used, or a multi-track recorder that is used for studio recording or the like. In particular, when applied to a multi-track recorder that has a large number of playback tracks, the sound image of the desired part or instrument sound can be set to the center of localization with one touch while maintaining the localization relationship of each sound image, resulting in extremely good operability. It is also possible to realize editing work.

[0041]

According to the present invention, the center track designating means designates the first reproduction track selected from the plurality of reproduction tracks by the selection operator as the localization center, and the localization changing means makes the first reproduction. The sound image of the track is set to the localization center, and the localization change amount when the first reproduction track is changed to the localization center is offset to each localization position of the other reproduction track group. Then, the localization control means is the first
While maintaining the sound image of the reproduction track of (1) at the center of localization, each sound image of the other reproduction track group in which the localization change amount is offset is subjected to localization control according to the performance information, and the localization state of each reproduction track is displayed. The sound image of a specific reproduction track can be localized while maintaining the localization relationship of the sound image of each reproduction track.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an automatic performance device to which a sound image localization control device according to an embodiment of the present invention is applied.

FIG. 2 is a diagram for explaining an example of performance effect parameters in the same embodiment.

FIG. 3 is a diagram for explaining a configuration of an operation panel P in the same embodiment.

FIG. 4 is a diagram showing correspondence between localization information PAN and localization display mode in the embodiment.

FIG. 5 is a flowchart showing an operation of a main routine in the embodiment.

FIG. 6 is a flowchart showing an operation of a center set changing routine in the embodiment.

FIG. 7 is a flowchart showing an operation of a localization information changing routine in the same embodiment.

FIG. 8 is a flowchart showing an operation of a localization information changing routine in the same embodiment.

FIG. 9 is a diagram for explaining the operation of the localization information changing routine in the embodiment.

[Explanation of symbols]

1 CPU (center track designation means, localization changing means, localization control means) 2 ROM 3 RAM 5 operator (selection operator) 6 display circuit (localization control means)

Claims (6)

[Claims] 1. A sound image localization control device for controlling the sound image position of each of a plurality of reproduction tracks stereo-reproduced in accordance with performance information supplied from the outside, and a selection for selecting any one of the plurality of reproduction tracks. A first control which is provided with an operation element and is selected by this selection operation element
Center track designating means for designating the reproduction track as the center of localization, and the sound image of the first reproduction track is set as the center of localization, and the amount of localization change when the first reproduction track is changed to the center of localization. A localization changing means for offsetting each localization position of another reproduction track group, and each sound image of another reproduction track group in which the localization change amount is offset while maintaining the sound image of the first reproduction track at the center of localization. And a localization control means for controlling localization according to the performance information. 2. A sound image localization control device for controlling a sound image position for each of a plurality of reproduction tracks stereo-reproduced in accordance with localization information supplied from the outside, the sound image localization control device being arranged corresponding to each of the plurality of reproduction tracks. A center track designating unit that has a plurality of selection operators and that designates a first reproduction track that is selectively selected by any one of the plurality of selection operators as a localization center, and corresponds to the first reproduction track. The first localization information,
While changing to the localization center value that represents the localization center,
Localization changing means for adding the difference value between the localization information and the localization center value to each localization information of another reproduction track group, and localization control of the sound image of the first reproduction track according to the localization center value. On the other hand, a sound image localization control device comprising: localization control means for performing localization control according to each localization information of another reproduction track group to which the difference value is added, and for displaying a localization state of each reproduction track as a level. . 3. The plurality of selection operators are alternately set to an on / off state in response to an operation, and when a plurality of on operations are performed, they are selected with late arrival priority. The sound image localization control device according to claim 2. 4. The localization changing means includes internal localization information including localization information supplied from the outside and the first localization information, and adding the difference value to each localization information of the other reproduction track group. The sound image localization control apparatus according to claim 2, further comprising a temporary storage unit that temporarily stores 5. The localization control means, when the center track designating means designates the first reproduction track, the sound image localization relation of each reproduction track based on the internal localization information including the first localization information. The sound image of the first reproduction track is controlled to be the center of localization while maintaining the above. On the other hand, when the operation of the center track designating unit is canceled, the sound image of each reproduction track is controlled to be localized according to the localization information. The sound image localization control device according to claim 2. 6. The localization control means, when the center track designating means designates the first reproduction track and the localization information sequentially changes according to the progress of music, the first reproduction track. 3. The sound image localization control apparatus according to claim 2, wherein the sound image of another reproduction track group is localization controlled in proportion to the change of the localization information while maintaining the sound image of [1] at the localization center.