JP2973764B2 - Sound image localization control device - Google Patents

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 electronic musical instrument.

[0002]

2. Description of the Related Art There are a stereo chorus device, a reverb device and the like as a device for giving a sense of spaciousness to a sound. The former is a device that creates a sound in which the phase of the original sound is slightly shifted, and generates this sound and the original sound alternately from the left and right speakers, and the latter is a device that adds a reverberation effect to the sound. . As another device, a panning device is cited. This panning device gives a three-dimensional effect to a sound generated by left and right speakers by giving a difference in output level.

[0003]

By the way, in a stereo chorus device or a reverb device, the sound spread can be increased, but the sound image position is blurred and it is difficult to identify the position. there were. Also,
In the panning device, since the position of the sound image exists only on a straight line connecting the left and right speakers and has no depth, when a plurality of sounds having different sound image positions are simultaneously generated, the sounds are mixed. By the way, panning devices are often used or built into electronic musical instruments, pianos,
It is used to simulate relatively large instruments such as organs and vibraphones. This is because, in a large musical instrument such as a piano, the position at which a sound is emitted moves along with the scale, and is imitated by a panning device.

[0004] However, the conventional panning apparatus has the above-mentioned drawbacks, and although a tentative panning effect can be obtained at the time of imitation, it is difficult to clearly identify the sound image position of each sound. However, there is a problem that accurate simulation cannot be performed. The present invention has been made in view of the above-described circumstances, and even when a plurality of sounds having different sound image positions are simultaneously generated, the sound image positions of the sounds can be clearly identified, and the sound spread and It is an object of the present invention to provide a sound image localization control device capable of obtaining a sense of depth.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a plurality of sound image localizing means (for example, a later-described directory controller) for localizing a supplied signal to a predetermined position.
DL10-DL13, multipliers KL10-KL13, power
A component) corresponding to adder KR10～KR13, a plurality of input portions, each signal or supplied in any ratio to any of the signals supplied to the plurality of input portions each sound image localization means Sound- corresponding position setting means (for example,
Aspects of the functions of the matrix controller MTR1 described later
And those elements), according to the settings of the sound corresponding position setting means, a supply means for supplying the signal to be supplied to the plurality of input to the plurality of sound image localization hand stage, before
At least one of the signals supplied to the plurality of inputs.
Also, one signal is output to at least one of the plurality of sound image localization means.
Both supplied to two sound image localization means (for example, described later).
Multiplier Constituting Matrix Controller MTR1
M1 to M12 and structures corresponding to the adders IN10 to IN13.
Component) .

[0006]

[Operation] A plurality of virtual sound image positions (virtual sound image positions ) are set in a wide space other than the actual speaker positions by the sound generation corresponding position
Speaker) is set. And a signal supplied to at least one input unit by the sound image localization means.
Are at least two virtual sound image positions (virtual speeds).
F) assigned to Thus, sound can be generated from an arbitrary sound image position.

[0007]

【Example】

A: Configuration of First Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, it is assumed that the positional relationship between the player P and the musical instrument I is as shown in FIG. And in the case of a horizontal direction, it points to the direction of arrow a in the figure,
The vertical direction indicates the direction of arrow b in FIG. FIG. 1B is a plan view schematically showing the appearance of the first embodiment of the present invention. In the figure, KB is a keyboard, and when each key is pressed, a tone waveform signal corresponding to the pitch is output from a tone generator (not shown). SP (L) and SP (R)
Are left and right speakers, respectively. These speakers are arranged on the left and right sides of the upper surface of the main body.

FIG. 1A is a block diagram showing the configuration of the embodiment. In this figure, a tone waveform signal output from a tone generator is supplied to each of channels Ch10 to Ch17 (hereinafter collectively referred to as channel Ch) of the sound image localization control device 1. In this case, the tone signal supplied to each channel Ch is assigned according to the sound range. Specifically, they are assigned as follows. That is, the tone waveform signal from the lowest tone to C1 is the channel C
h10, and the tone waveform signals of C # 1 to C2 are supplied to the channel Ch11. Similarly, C # 2 to F2, F # 2 to C3, C # 3 to F3, F #
The tone waveform signals 3 to C4 and C # 4 to C # 5 are supplied to channels Ch12, 13, 14, 15, and 16, respectively, and the tone waveform signals from D5 to the highest tone are supplied to channel Ch17. You.

Next, M1 to M12 are multipliers, respectively.
The tone waveform signal supplied via the above-mentioned channel Ch1x is multiplied by coefficients CM1 to CM12, respectively. IN
10 to IN13 are adders, respectively, and multipliers M1 to M1
A predetermined one of the two output signals is supplied as an input signal. The multipliers M1 to M12 and the adders IN10 to
The channel 13 and the channels Ch10 to Ch17 are constituent elements of the matrix controller MTR1, and the connection relation and arrangement relation of each element can be arbitrarily changed based on a control signal or the like. The details of the matrix controller MTR1 will be described later. DL
Reference numerals 10 to DL13 denote delays for delaying the output signals of the adders IN10 to IN13, respectively, and each delay has two output terminals having different delay times.

The signal output from the output terminal TL10 of the delay DL10 is multiplied by a predetermined coefficient by a multiplier KL10, and then is applied to one input terminal (for left-side sound generation) of the crosstalk canceller via an adder AD10. Supplied. The signal output from the output terminal TR10 of the delay DL10 is multiplied by a predetermined coefficient by a multiplier KR10, and then, through adders AD12 and AD13, to the other input terminal (for right-side sound generation) of the crosstalk canceller 2. Supplied.

Similarly, the signal output from the output terminal TL11 of the delay DL11 is supplied to one input terminal of the crosstalk canceller 2 via the multiplier KL11 and the adder AD10, and the signal output from the output terminal TR11. Is a multiplier KR11, adders AD12 and AD13
Are sequentially supplied to the other input terminal of the crosstalk canceller 2. The signal output from the output terminal TL12 of the delay DL12 is supplied to the multiplier KL12 and the adder AD11.
The signal supplied from the output terminal TR12 to the other input terminal of the crosstalk canceller 2 is supplied to the other input terminal of the crosstalk canceller 2 via the multiplier KR12 and the adder AD13. . The signal output from the output terminal TL13 of the delay DL13 is supplied to one input terminal of the crosstalk canceller 2 via the multiplier KL13, the adder AD11 and the adder AD10, and the output terminal TR1 of the delay DL13
3 is output to multiplier KR13 and adder A
It is supplied to the other input terminal of the crosstalk canceller 2 via D13.

The crosstalk canceller 2 cancels the crosstalk that occurs when a human hears the sound, that is, the phenomenon that the sound on the right enters the left ear and the sound on the left enters the right ear. Fig. 2 shows an example of the circuit configuration. This circuit calculates the arrival time difference between the left and right ears and the peak value of the impulse response based on the measured values of the head-related transfer functions of the dummy head and the human ear, and performs delay and weighting accordingly. The actual measurement is performed, for example, assuming that the speakers SP (L) and SP (R) are separated from each other by a distance of 1.5 m in the direction of 45 ° left and right about the person M as shown in FIG. Since the head-related transfer function of the person M is left-right symmetric, one of the speakers SP (L) and SP (R) is emitted, and the arrival time difference between the left and right ears and the peak value of the impulse response are measured. Then, as a result of the actual measurement, if the left and right level difference is 6 dB (0.5) and the left and right time difference is 200 μs, the multipliers KL30 and KL30 of the circuit shown in FIG.
The coefficient of R32 is -0.5, and the delays DL30 and DL
The delay time of 32 is 200 μs. FIG. 3 (a)
DL31, 33 and multiplier KL of the circuit shown in FIG.
Reference numerals 31, KR33 constitute an all-pass filter for achieving phase matching.

The output signals on the left and right sides of the above-described crosstalk canceller 2 are, as shown in FIG.
After being amplified by the amplifier 3, the sound is generated by the left and right speakers SP (L) and SP (R). In this manner, when the user hears the sound generated through the crosstalk canceller 2, the crosstalk is canceled out in terms of audibility, and the sound of the left and right speakers is clearly separated.

Here, the delay DL1 in the above configuration
The functions 0 to 13 will be described. Taking the delay DL10 as an example, the signal output from the output terminal TR10 is multiplied by a predetermined coefficient by the multiplier KR10, then sounded by the right speaker SP (R), and output from the output terminal TL10. The signal to be output is a multiplier KL
After being multiplied by a predetermined coefficient by 10, the sound is generated by the left speaker SP (L). At this time, the sound image position of the sound output via the delay DL10 is determined by the delay time difference between the left and right speakers and the volume ratio to the left and right speakers. In this case, since not only the left and right volume ratios but also the left and right delay time differences are set, the sound image position is farther than the actual speakers SP (L) and SP (R) and a line connecting both speakers. It can be set at a position outside the range. That is, the sound image position can be set in an arbitrary space outside the line connecting the two speakers. In other words, the virtual speaker can be set at an arbitrary position in the space so that sound can be emitted from that position. Then, in this embodiment, the sound generation position is set at the position indicated by reference numeral VS10 in FIG. Hereinafter, a sound source at such a virtual position is referred to as a virtual speaker.

Similarly, delays DL11, DL1
2 and DL13 also correspond to the virtual speakers, respectively, and the virtual speakers VS11, VS12, and VS shown in FIG.
13. In this case, as shown in FIG.
The virtual speakers VS10 to VS13 are arranged in a substantially circular shape with the performer at the center.
0 °, 24 ° to the left, 24 ° to the right, and 60 ° to the right.

Next, the matrix controller MTR1
The function of will be described. As described above, the matrix controller MTR1 controls the connection relation and the arrangement relation between the multipliers M1 to M12, the adders IN10 to 13, and the channels Ch10 to Ch17. VS10
It will control how to assign to VS13. Then, the sound image position of each channel Ch is determined depending on which ratio is assigned to which virtual speaker. In other words, the virtual speakers VS10 to VS1
3 is controlled, and the sound image position of each channel is controlled.

In the case shown in FIG. 1A, the multipliers M1 to M
Twelve coefficients are set as follows to control the distribution ratio to the virtual speakers. That is, CM1 = 0.75
(By multiplying the tone waveform signal, the sound pressure of the tone waveform signal is reduced by 2.5 dB), CM2 = 0.75
CM3 = 0.25 (by multiplying the tone waveform signal to lower the sound pressure of the tone waveform signal by 12 dB), CM
4 = 0.75, CM5 = 0.625 (By multiplying the tone waveform signal, the sound pressure of the tone waveform signal is increased to 4.0.
8dB lower), CM6 = 0.313 (multiplying by the musical tone waveform signal, the sound pressure of this musical tone waveform signal is reduced by 1)
0.08 dB), CM7 = 0.313, CM8 =
0.625, CM9 = 0.75, CM10 = 0.25
CM11 = 0.75, CM12 = 0.75.

Next, the state shown in FIG. 2A is another arrangement by the matrix controller MTR1. In the case of this example, the delay DL10 and the delay DL13 are used as delays serving as virtual speakers. That is, as shown in FIG. 2B, sound is generated using two virtual speakers VS10 and VS13. The matrix controller MTR1 appropriately distributes the signals of the channels Ch10 to Ch17 to the adders IN10 and IN13,
The positions of those sound images are controlled. In this example, the multiplier M
The coefficients of 1 to M14 are respectively CM1 = 0.75, CM2 =
0.75, CM3 = 0.313, CM4 = 0.625,
CM5 = 0.375 (by multiplying the tone waveform signal to lower the sound pressure of the tone waveform signal by 8.5 dB),
CM6 = 0.5 (by multiplying the tone waveform signal to lower the sound pressure of the tone waveform signal by 6 dB), CM7
= 0.439 (by multiplying the tone waveform signal,
The sound pressure of this tone waveform signal is reduced by 7.16 dB), CM
8 = 0.439, CM9 = 0.5, CM10 = 0.37
5, CM11 = 0.625, CM12 = 0.313, C
M13 = 0.75 and CM14 = 0.75 are set.

B: Operation of First Embodiment Next, the operation of this embodiment having the above configuration will be described. When the player P performs a performance using the keyboard, a musical tone waveform signal corresponding to each key operated is output, and the tone waveform signal is divided into channels according to a sound range and input to the matrix controller MTR1. Now, assuming that the matrix controller MTR1 is in the state shown in FIG. 1A, the tone waveform signals are output from the four virtual speakers VS10 to VS10.
VS13 outputs as appropriate according to the sound range.

The details are as follows. First, the musical tone waveform signals from the lowest tone to C1 are output from the virtual speaker VS1.
Output from 0. The musical sound waveform signals of C # 1 to C2 are output from the virtual speakers VS12 and VS10.
The position is close to the virtual speaker VS10. That is, the sound is generated at a position close to the virtual speaker VS10 on a straight line connecting the virtual speakers VS12 and VS10. Also, C
The tone waveform signals from # 2 to F2 are virtual speakers VS11.
Pronounced by In the same manner, sound is generated at a predetermined sound image position for each sound range, whereby the sound image position of the musical tone waveform signal in each sound range is sequentially arranged from the left side along a substantially circular line centered on the player P. Move to the right. Therefore, when the player P sequentially presses the keys from the low tone side to the high tone side, the sound image position moves from the left side to the right side along the above-mentioned circular line. That is, the left, right, front and back positions of the sound image are controlled.

On the other hand, the matrix controller MTR1
In the state shown in FIG. 2A, the tone waveform signals in each range are generated by the virtual speakers VS10 and VS13, and the sound image position is controlled on a straight line connecting these virtual speakers. Therefore, the sound spread in the front-back direction is inferior to the case shown in FIG. 1A, but the sound spreads in the left-right direction and the front-back direction as compared with the actual speakers SP (L) and SP (R). As mentioned above,
According to this embodiment, the matrix controller MTR
By changing the method of distributing the musical tone waveform signal by (1),
The control mode of the sound image position can be easily switched.

C: Modification of First Embodiment FIG. 5 is a block diagram showing a modification of the first embodiment. In this modification, eight delays constituting the virtual speaker are provided from DL50 to DL57. Although not shown, eight adders in the matrix controller MTR1 are also provided corresponding to the delays DL50 to DL57. According to such a configuration, a musical tone waveform signal can be appropriately allocated to the eight virtual speakers, so that finer sound image localization control can be performed.

D: Configuration and Operation of Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. The configuration of the portion not shown is the same as that of the first
This is the same as the embodiment. In this figure, STR
60 to STR65 are tone generators, respectively.
MIDI signal (Musical Instrument Digital Interface
Standardized signal). That is, of the tone generators STR60 to STR65,
The signal designated by the I signal generates a tone waveform signal having the pitch designated by the MIDI signal. The output signals of the tone generators STR60 to STR65 are respectively output to delays DL60 to DL60 constituting a virtual speaker.
DL65. The output signals of the delays DL60 to DL65 are added to the adder VS after being multiplied by a predetermined coefficient.
The signals are added by R1 to VSR4 or VSL1 to VSL4 and supplied to the crosstalk canceller 2 (see FIG. 1).

According to the above configuration, sound is generated from a predetermined virtual speaker for each tone generator. Therefore,
For example, when the tone generators STR60 to STR65 emit the sound of each string of the guitar, the sounding state of the guitar can be simulated well. This is for the following reason. That is, when the guitar is close to the listener, the strings and the ears of the listener are close to each other, so that the sound of each string can be heard separately. The sensation gradually diminishes, and at the end it sounds like it's ringing at one point. Therefore, by appropriately setting the delay times of the above-described delays DL60 to DL65 and the coefficient to be multiplied by the output signal, it is possible to give the listener a sense of distance of the instrument sound.

In this case, the distance to the sound source to be realized by the delay is obtained as shown in FIG. In the figure, r is the radius of the head of the person M, d is the distance from the center of the head to the sound source, and θ is the angle of the sound source. Since the distance dr between the right ear and the sound source and the distance dl between the left ear and the sound source can be obtained by the equations shown in the drawing, these distances can be obtained for each string, and this can be realized by the delays DL60 to DL65. . In the embodiment described above, the matrix controller M of the sound image localization control device 1
The connection of TR1 and the count given to each multiplier can be arbitrarily set by the user, and the connection and each coefficient may be stored in advance in a plurality of patterns, and the user may select the pattern. Good.

E: Configuration and operation of a game machine to which the sound image localization control device is applied Next, a game machine to which the above-described sound image localization control device 1 is applied will be described with reference to FIGS. FIG. 8 is a block diagram showing a configuration of the game machine 9. 1, a controller 10 includes a joystick (not shown), a trackball, various button switches, and the like. The control unit 11 includes a CPU (not shown) and various interfaces, executes a game program stored in the program memory 12, advances the game, and controls the entire game machine. The work memory 13 has
Various data and the like obtained during execution of the game program are stored. The image information memory 14 stores image data to be displayed according to a game program to be executed.
For example, characters C1, C2, C3 and background BG
1, BG2, BG3 (hereinafter collectively referred to as BG) and the like. The characters C1, C2, and C3 (hereinafter collectively referred to as C) are, for example, humans, cars, airplanes,
Alternatively, it may be of any kind, such as an animal. These image data are read out during the progress of the game, and are displayed at a predetermined position on the display 15 in a predetermined size according to the progress of the game.

Next, the coordinate-sound image localization coefficient conversion memory 16
Stores parameters for causing the position of the character C on the display 15 to correspond to the sound image position in the two-dimensional space. Here, FIG. 9 shows the configuration of the coordinate-sound image localization coefficient conversion memory 16. FIG.
3 shows a positional relationship between the player P and the game machine 9 in the real space. As shown in FIG. 9, the XY coordinates in the coordinate-sound image localization coefficient conversion memory 16 are the X-Y coordinates of the display 15.
The display 1 is configured to correspond to the Y coordinate.
5, the output channel number CH of the sound source 17 is provided at each position corresponding to the values of X and Y indicating the position of the character C in
Some of the coefficients CM1 to CM12 to be supplied to the multipliers M1 to M12 of the sound image localization control device 1 are stored. For example, in the illustrated area AR, “13” is stored as the output channel number CH, “0.6” is the coefficient CM5 to be supplied to the multiplier M5, and “0.6” is the coefficient CM6 to be supplied to the multiplier M6. 0.8 "is stored.

The XY coordinates in the coordinate-sound image localization coefficient conversion memory 16 also correspond to the XY coordinates in the real space shown in FIG. That is, the position of the character C on the display 15 corresponds to the actual space (two-dimensional) where the player is located as shown in FIG.
Therefore, if the above-mentioned parameters are appropriately set, a sound is emitted from a position in the real space corresponding to the position of the character C. Note that the coordinate-sound image localization coefficient conversion memory 16 is configured to be larger than the display range of the display 15, and even if it is assumed that the character C exists at coordinates that cannot be displayed on the display 15,
The channel number CH and the coefficient CM1 are set so that sound is emitted from a position in the real space corresponding to the coordinates of the character C.
~ CM12 are stored.
Further, the position of the character C is controlled to be automatically changed according to the progress of the game, or is controlled to be changed according to the operation of the controller 10, based on the game program stored in the program memory 12.

Next, the sound source 17 has a plurality of sounding channels operating in a time-division manner, generates a musical tone waveform signal in accordance with an instruction from the control unit 11, and converts the generated musical tone waveform signal into the sound image localization control device 1. 8 channels Ch10-C
h17 to one or a plurality of channels. In particular, the tone waveform signal relating to the character C is output to the channel Ch indicated by the output channel number CH described above. In addition, the sound image localization control device 1
Has the configuration shown in FIG.
M12 is supplied with predetermined coefficients CM1 to CM12, and controls the sound image position of each channel Ch to control the speakers SP (L),
Generated by SP (R).

According to the configuration described above, when the game machine 9 is powered on, the control unit 11 executes the program stored in the program memory 12 and proceeds with the game. The background BG is read from the image information memory 14 according to the progress of the game.
One of BG1, BG2 and BG3 is read and displayed on the display 15. Similarly, character C
One of C1, C2 and C3 is read and displayed on the display 15. On the other hand, the control unit 11 instructs the sound source 17 to generate a tone waveform signal of BGM according to the progress of the game. Further, the control unit 11 instructs the sound source 17 to generate a tone waveform signal having a tone characteristic (tone, pitch, effect, and the like) corresponding to the character C, and corresponds to the display position of the character C on the display 15. The output channel number C at the position of the coordinate-sound image localization coefficient conversion memory 16
H and coefficients CM (CM1 to CM12) are read, and
It is supplied to the sound source 17 and the sound image localization control device 1. Sound source 1
The tone waveform signal corresponding to the character C generated by 7 is output to the sound image localization control device 1 from the channel Ch indicated by the output channel number CH.
Further, other tone waveform signals are also output to the sound image localization control device 1 from the predetermined channel Ch. In the sound image localization control device 1, the coefficient CM read from the coordinate-sound image localization coefficient conversion memory 16 is supplied to the multipliers M1 to M12, and the sound image position of each channel is controlled in accordance with the coefficient CM, and the speaker SP (L) and SP (R).

When the player P operates the controller 10 with the intention of moving the character C, the controller 11
Moves the character C on the display 15 in accordance with the operation amount, changes the display position, and sets the output channel number CH of the position of the coordinate-sound image localization coefficient conversion memory 16 corresponding to the new display position. Coefficient C
M are read and supplied to the sound source 17 and the sound image localization control device 1, respectively. Therefore, the sound image position in the real space also moves with the movement of the character C. According to the present embodiment, for example, the character C of the airplane is displayed on the display 15.
Are not displayed on the display 15 when the player is approaching from behind the player P and outside the player P. But,
The coordinate-sound image localization coefficient conversion memory 16 stores the display 1
Since the area larger than the display range of No. 5 is provided, the sound of the character C is emitted so as to approach from behind the player P. As a result, the presence and movement of the airplane can be understood,
A sense of realism that is not available in conventional game machines can be obtained. In the above embodiment, the character C is represented by two-dimensional coordinates.
, But without being limited to this,
It may be three-dimensional coordinates. At this time, the number of the real speakers may be increased and the real speakers may be arranged three-dimensionally.

In the above embodiment, the display 15
Are made to correspond to the XY coordinates in the real space shown in FIG. 10. For example, only the character C located in front of the player P is displayed on the display 15 as in a car racing game. The display may be performed so that the visual range of the player P matches the display on the display 15.

[0033]

As described above, according to the present invention , a plurality of sound-generating position setting means and supply means can be used.
The signals supplied to the input section of the
Since then supplied to the stage, even if pronunciation different sound of the sound image position at the same time, Ru can clearly identify the sound image position of each note. Moreover, the sound-corresponding position setting means
Of each of the multiple sound image localization means
Set whether to supply the tone waveform signal and
By the step, the signal is generated according to the setting of the sound-corresponding position setting means.
To supply at least two sound image localization means
It is possible to change the sound image localization position in various ways.
You.

[Brief description of the drawings]

FIG. 1 is a block diagram and an external schematic plan view of a sound image localization control device.

FIG. 2 is a block diagram and a schematic external plan view showing a configuration of another embodiment using a matrix controller MTR1.

FIG. 3 is a block diagram showing a configuration of a crosstalk canceller and an outline schematic plan view showing a setting example.

FIG. 4 is a schematic plan view showing the external appearance of a relationship between a player and a musical instrument.

FIG. 5 is a block diagram of a sound image localization control device.

FIG. 6 is a block diagram of a sound image localization control device.

FIG. 7 is a conceptual diagram for explaining various parameters.

FIG. 8 is a block diagram illustrating a configuration of a game device to which the sound image localization control device is applied.

FIG. 9 is a conceptual diagram for explaining a coordinate-sound image localization coefficient conversion memory shown in FIG. 8;

FIG. 10 is a plan view showing a positional relationship between a game player and a game machine.

[Explanation of symbols]

1. Block diagram of sound image localization control device, Ch10 to Ch
17 channel, M1 to M14 multiplier, IN1
0 to IN13 Adder, DL10 to DL13 Delay, AD10 to AD13 Adder 2, Crosstalk canceller 3, Amplifier, SP (L), SP
(R): speaker, MTR1: matrix controller, VS10 to VS13: virtual speaker.

Continuation of the front page (56) References JP-A-4-90300 (JP, A) JP-A-4-125692 (JP, A) JP-A-57-67995 (JP, A) JP-A-49-52618 (JP, A) JP-A-3-98096 (JP, A) JP-A-3-103900 (JP, A) US Patent 5,816,618 (US, A) US Patent 5,822,438 (US, A) US Patent 4,851,134 (US, A) US Patent 5046097 (US, A) European Patent 563929 (EP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) G10H 1/00 G10K 15/12 H04S 1/00 H04S 7/00

Claims (1)

(57) [Claims] A plurality of sound image localization means for 1. A respectively sound image localization signals supplied to the predetermined position, and a plurality of inputs, each signal supplied to the plurality of input to any of the respective sound image localization means What ratio to supply for each signal
In pronunciation and corresponding position setting means, the sound corresponding according to the setting of the position setting means, supply means for supplying the signal to be supplied to the plurality of input to the plurality of sound image localization <br/> means to set And the plurality of input units
Preceding at least one of said signals to be supplied
At least two of the plurality of sound image localization means.
Sound image localization control apparatus characterized by comprising the supplies to the position means.