JPH075873A - Sound processor - Google Patents

Abstract

PURPOSE:To simply reproduce sound field with sufficient presence and to facilitate the confirmation of the position of the sound field in a sound processor. CONSTITUTION:A touch pannel 34B is provided on an instrument position setting device 34 by superposiing it a display pannel 34A. When an instrument position (sound source position) of a piano, etc., is signified with a fingure, etc., in the touch pannel 34B, the specified position is displayed on the display pannel 34A, and positional information showing the specified position is converted to the control information of a sound image fixed position, a reverberation effect and a frequency characteristic, etc., of a sound. The sound field is reproduced by controlling a parameter of a musical sound signal from the sound sources 38, 40, 42 in a parameter control circuit 44 based on these control information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound processing apparatus suitable for use in electronic musical instruments, automatic musical instruments, etc., and more particularly, by controlling sound image localization, effect amount, sound characteristics, etc. according to the position of a sound source. A rich sound field can be easily reproduced and the position of the sound source can be easily confirmed.

[0002]

2. Description of the Related Art Conventionally, as a sound effect imparting technique for electronic musical instruments, effect control information for obtaining a sound effect (for example, reverb effect) peculiar to each concert hall such as a "concert hall" or "jazz club" is prepared in advance. It is known to preset and select a desired playing field so as to add a sound effect peculiar to the selected playing field to a musical tone signal based on preset information corresponding thereto.

[0003]

According to the above-mentioned conventional technique, it is possible to reproduce a sound effect peculiar to a desired playing field and enjoy the performance, but a sound corresponding to a sound source position (musical instrument position) in the playing field is reproduced. I could not reproduce the place, and I could not avoid the lack of realism. That is, in the actual playing field,
The sound field feeling (for example, sound image localization, frequency component of musical sound, magnitude of sound effect, etc.) differs depending on the type and arrangement of the musical instruments used. With the above-mentioned conventional technology, a performance imitating such a sound field feeling can be enjoyed. I couldn't.

On the other hand, as an electronic musical instrument having a plurality of speakers, a sound image localization of a performance sound or a sound effect can be set and played by appropriately operating an operator such as a volume or a switch provided on a panel surface. It is known to do so.

In such an electronic musical instrument, it is troublesome to operate a large number of operators so as to obtain a desired sound field feeling, and in particular, assuming a sound source position in a desired playing field, the sound source thereof is assumed. It is not easy to operate various controls to reproduce the sound field according to the position. So, like the above-mentioned conventional technology,
It may be possible to preset the control information required to reproduce the sound field according to the sound source position for each playing field, but this would increase the amount of information to be preset and complicate the configuration. Invite. Moreover, it is not easy to confirm the sound source position from the setting state or preset information of the operator.

An object of the present invention is to provide a novel sound processing device which can easily reproduce a sound field rich in realism and can easily visually confirm the sound source position as needed. .

A first sound processing apparatus according to the present invention is a display means (34A in FIG. 1) for displaying an image corresponding to a sound source.
And a sound generating means having a plurality of speakers for generating a sound corresponding to the sound source (38, 40,
42, 46R, 46L, 48R, 48L) and information generating means (34 in FIG. 1) for generating position information regarding the sound source.
B) and by controlling the display means based on the position information from the information generating means, the display means is caused to display the image at a visible position corresponding to the position information, and based on the position information. Control means for controlling the sound generating means to localize the sound image of the sound generated from the sound generating means to the spatial position corresponding to the position information (FIG. 1).
16, 18, 26, 30, 36, 44).

A second sound processing apparatus according to the present invention is a sound generating means having a plurality of speakers, which generates a sound corresponding to a sound source (38, 40, 42, 46 in FIG. 1).
R, 46L, 48R, 48L), information generating means (34B in FIG. 1) for generating position information regarding the sound source, and position information generated by this information generating means for sound generated by the sound generating means. A storing means (18 in FIG. 1) for storing conversion characteristics (FIGS. 5 (A) and 5 (D)) for converting into a plurality of sound parameters, and the information generating means according to the conversion characteristics stored in the storing means Generated by the sound generation means by controlling the sound generation means based on the plurality of sound parameters from the conversion means (16, 18 in FIG. 1) And a control means (44 in FIG. 1) for locating the sound image of the sound to be localized at a spatial position corresponding to the position information corresponding to the plurality of sound parameters.

A third sound processing device according to the present invention is a sound generating means having a plurality of speakers, which generates a sound corresponding to a sound source (38, 40, 42, 46 in FIG. 1).
R, 46L, 48R, 48L) and store means (20, 24 in FIG. 1) for storing position information regarding the sound source.
A reading means (16, 18 in FIG. 1) for reading the position information from the storing means; and a sound generating means for controlling the sound generating means based on the position information read from the storing means. Control means for locating the sound image of the sound to be localized at the spatial position corresponding to the position information (16 in FIG. 1,
18, 30, 36, 44).

A fourth sound processing device according to the present invention is a display means (34A in FIG. 1) for displaying an image corresponding to a sound source.
And a sound generating means having a plurality of speakers for generating a sound corresponding to the sound source (38, 40,
42, 46R, 46L, 48R, 48L) and information generating means (34 in FIG. 1) for generating position information regarding the sound source.
B) and display control means for controlling the display means based on the position information from the information generating means to display the image on the display means at the visible position corresponding to the position information (16 in FIG. 1). , 18, 26) and effect adding means (64 in FIG. 6) for adding a reverb effect to the sound generated by the sound generating means based on the position information from the information generating means. .

A fifth sound processing device according to the present invention is a display means (34A in FIG. 1) for displaying an image corresponding to a sound source.
And a sound generating means having a plurality of speakers for generating a sound corresponding to the sound source (38, 40,
42, 46R, 46L, 48R, 48L) and information generating means (34 in FIG. 1) for generating position information regarding the sound source.
B) and display control means for controlling the display means based on the position information from the information generating means to display the image on the display means at the visible position corresponding to the position information (16 in FIG. 1). , 18, 26) and position information from the information generating means, and characteristic control means (5 in FIG. 6) for controlling the characteristics of the sound generated by the sound generating means.
2) and are provided.

[0012]

In the above-described first sound processing device, when the position information regarding the sound source is generated by the information generating means, the sound image and the image corresponding to the sound source move together according to the position information.

In the above-described second sound processing device, when the position information regarding the sound source is generated by the information generating means,
The position information is converted into a plurality of sound parameters according to the stored conversion characteristics. Then, the sound image localization is controlled according to the plurality of sound parameters. In such a configuration in which the position information is converted into a plurality of sound parameters, when the setting operation means is used as the information generating means, the sound image position may be directly set, the setting operation becomes very simple, and the presetting is performed as the information generating means. In the case of using the means, the sound image position information may be preset, and the configuration of the preset information processing unit is simpler than that of presetting a plurality of tone parameter control information.

In the third sound processing apparatus described above, the position information regarding the sound source is read from the storing means, and the sound image localization is controlled according to the position information regarding the reading.

In the above-mentioned fourth sound processing device, when the position information regarding the sound source is generated by the information generating means,
The position of the image corresponding to the sound source is controlled according to the position information, and the reverb effect added to the sound is controlled according to the position information.

In the above-mentioned fifth sound processing device, when the position information regarding the sound source is generated by the information generating means,
The position of the image corresponding to the sound source is controlled according to the position information, and the characteristic of the sound (for example, frequency characteristic) is controlled according to the position information.

[0017]

1 shows the circuit configuration of an electronic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, the generation of musical tones is controlled by a microcomputer.

In FIG. 1, a keyboard circuit 1 is attached to a bus 10.
2, operator group 14, central processing unit (CPU) 16, RO
M (read only memory) 18, RAM (random access memory) 20, register group 22, floppy disk device 24, display panel interface 2
6, a touch panel interface 28, a sound source interface 30, an external input interface 32, etc. are connected.

The keyboard circuit 12 has, for example, an upper keyboard, a lower keyboard, and a pedal keyboard, and key operation information is detected for each key of each keyboard.

The operator group 14 includes various operators for musical tone control and performance control provided on the musical instrument panel.
The operation information is detected for each operator.
Operators related to the implementation of the present invention will be described later with reference to FIG.

The CPU 16 executes various processes for generating musical tones in accordance with the programs stored in the ROM 18, and these processes will be described later with reference to FIGS. 8 to 12. In the ROM 18, in addition to the program,
Musical tone parameter control information as described later with reference to FIG. 5 is also stored.

The RAM 20 is a floppy disk device 2
This is for storing the display / control data for one playing field read out from No. 4.

The register group 22 includes a large number of registers used in various processes by the CPU 16,
Among these registers, those related to the implementation of the present invention will be described later.

The floppy disk device 24 has a floppy disk in which display / control data is recorded for each of a plurality of playing fields. For writing data from the floppy disk to the RAM 20, refer to FIG. See below.

The display panel interface 26 and the touch panel interface 28 are used by the instrument position setting device 3
Display panel 34A and touch panel 34B that configure No. 4
The interface 26 supplies the display data DS to the display panel 34A, and the interface 28 detects the touch position from the touch panel 34B and receives the musical instrument position data PS corresponding to the touch position. ing. The instrument position setting device 34
Will be described later with reference to FIG.

The sound source interface 30 includes an allocation circuit 3
6 is supplied with sound source control information TS. As the sound source control information TS, performance information such as a key-on signal, a key-off signal, key data (pitch data) corresponding to key depression based on a keyboard operation, and read from the ROM 18. It is possible to supply the tone parameter control information, the tone color designation data and the reverb control data read from the RAM 20.

The external input interface 32 is for inputting performance information based on a keyboard operation from another electronic musical instrument or performance information read from a storage (recording) device. The input performance information is input to the keyboard circuit 12. Can be supplied to the allocation circuit 36 via the sound source interface 30 together with or instead of the performance information from.

The allocation circuit 36 uses the supplied sound source control information TS as a first sound source (TG1) 38 and a second sound source (TG1).
2) 40, a third sound source (TG3) 42 or a parameter control circuit 44 which is allocated and supplied, and TG1 (38)
.About.TG3 (42) are all capable of generating digital tone signals. The TG1 (38) is supplied with the performance information based on the upper keyboard operation and the tone color designation data corresponding to the musical instrument 1 (for example, piano) as the first sound source control information S1, and the TG2 (40) is controlled by the second sound source. As the information S2, the performance information based on the lower keyboard operation and the tone color designation data corresponding to the musical instrument 2 (eg, violin) are supplied.
3 (42) is supplied, as the third sound source control information S3, performance information based on pedal keyboard operation and tone color designation data corresponding to the musical instrument 3 (for example, bass), and the parameter control circuit 44 is provided with musical tone parameter control information. PD and reverb control data RVD are supplied. In this case, the performance information from the external input interface 32 can be supplied instead of the performance information based on the operation of an arbitrary keyboard among the upper keyboard, the lower keyboard and the pedal keyboard. It becomes possible to perform a concert with a musical instrument or an automatic player.

The parameter control circuit 44 uses the TG1 (3
8) Digital tone signal S11, TG2 (40)
The digital tone signal S12 from TG3 (42) and the digital tone signal S13 from TG3 (42) are used to control the tone parameters based on the tone parameter control information PD, and to apply the reverb effect based on the reverb control data RVD. , The analog tone signal AS for the right channel by D / A (digital / analog) conversion of the tone signal subjected to such control for each of the left and right channels
(R) and analog tone signal AS (L) for left channel
Is sent. A specific example of the parameter control circuit 44 will be described later with reference to FIGS. 6 and 7.

The tone signal AS (R) is output to the output amplifier 46R.
Is supplied to the right speaker 48R via and is sounded as a musical sound. Further, the tone signal AS (L) is output to the output amplifier 46.
It is supplied to the left speaker 48L via L and is sounded as a musical sound.

FIG. 2 shows an arrangement example of the operators, which belong to the operator group 14, and are related to the implementation of the present invention.

The performance mode switch PMS is for designating a normal performance mode.
The light emitting element PML in the vicinity thereof is turned on, and the normal manual performance (or automatic performance) without reproducing the sound field of the playing field becomes possible.

As the playground selection switch HSS, N switches are arranged in parallel, and a light emitting element HSL is provided in the vicinity of each switch. When the switch HSS corresponding to the desired playing field is turned on, the light emitting element HSL in the vicinity thereof is turned on, and the manual performance (or automatic performance) is performed with the sound field of the playing field corresponding to the turned-on switch being reproduced.
Is possible. When the light emitting element HSL is turned on and the switch HSS is turned on, the light emitting element HSL is turned off, the light emitting element PML is turned on, and the normal performance mode is returned to.

FIG. 3 is a top view of the musical instrument position setting device 34. This device 34 has a structure in which a display panel 34A is arranged on the back surface of a transparent touch panel 34B having a switch matrix.

On the display panel 34A, for example, the symbol HSY of a concert hall or the like, and "HALL1".
The playing field name HNM, the musical instrument display frame FLM, the musical instrument symbol ISY, and the musical instrument name INM are displayed. In this case, the musical instrument display frame FLM can be displayed within the rectangular area corresponding to the touch panel 34B, and the musical instrument symbol ISY is displayed.
The musical instrument names INM are displayed one by one in each musical instrument display frame FLM. As an example, in the leftmost instrument display frame FLM, a piano symbol is displayed as the instrument symbol ISY and the letters "PIANO" are displayed as the instrument name INM, and similarly in the instrument display frame FLM on the right side. Shows a violin symbol and the word "VIOLIN", and a bus symbol and the word "BASS" in the rightmost display frame FLM.

When the length of one side of the touch panel 34B in the front-rear direction is H and the length of one side in the left-right direction is W, H corresponds to the depth of the playing field and W is the width (or frontage) of the playing field.
Corresponding to. The left rear end of the touch panel 34B is the origin P _O
Assuming that (0, 0), the front-rear direction is the y-axis, and the left-right direction is the x-axis, the position of the piano is P _P (x ₁ , y
₁ ) and similarly the position of the violin is P
_V (x ₂ , y ₂ ) and the position of the bus are represented as P _B (x ₃ , y ₃ ).

In the musical instrument position setting device 34 of FIG. 3, for example, when a part of the touch panel 34B corresponding to the musical instrument display frame FLM on which the piano is displayed is touched with a finger or the like and the touch panel is moved forward, backward, leftward or rightward, The musical instrument display frame FLM also moves along with the musical instrument name INM and the musical instrument symbol ISY as it moves, and the position where the movement and touch are stopped finally becomes the display position of the piano. This also applies to other musical instrument display frames FLM displaying the violin and bass. Therefore, it is possible to easily and arbitrarily set the musical instrument position in the playing field for each of the three types of musical instruments by only touch operation.

FIG. 4 shows the format of the display / control data. The above-mentioned floppy disk has a playing field 1 (for example, a small hall), a playing field 2 (for example, a large hall), and a playing field 3 (for example, an outdoor stage). ) ... Display / control data for N playing fields corresponding to each playing field N (for example, a jazz club) are recorded.

When a desired playing place is selected by operating the playing place selection switch HSS shown in FIG. 2, the display / control data relating to the selected playing place is transferred from the floppy disk device 24 to the RAM 20, and the playing place is shown in FIG. 1 is written in the RAM 20 in a format as illustrated.

The data for one playing field is an array of the playing field-related data and the musical instrument-related data for three musical instruments following the leading identification data ID. The playing field-related data is data representing the number of bytes K ₀ of the playing field name data HNMD,
Data representing the number of bytes L ₀ of the playing field symbol data HSYD, data representing the number of bytes M ₀ of the reverb control data RVD, playing field name data HNMD for displaying the playing field name, playing for displaying playing field symbols It is composed of field symbol data HSYD and reverb control data RVD for controlling the reverb effect. HAD ₀ is
This is the start address when the playing field-related data is written in the RAM 20, and this and the number of bytes of each data K ₀ , L ₀ , M
₀ and the data HNMD, HSY from the RAM 20
Reading of D and RVD is controlled.

The musical instrument-related data is composed of display / control data relating to the musical instrument 1 (for example, piano), the musical instrument 2 (for example, violin), and the musical instrument 3 (for example, bass). Since the data formats for three musical instruments are similar to each other, the musical instrument 1 will be described as a representative.

Instrument 1 related data is instrument name data INM
Data representing the number of bytes K _{1 of} D, data representing the number of bytes L ₁ of the instrument symbol data ISYD, data representing the number of bytes M ₁ of the tone color designation data TSD, instrument name data INMD for displaying the instrument name, instrument symbol Instrument symbol data ISYD for displaying, tone color designation data TSD for designating a tone color corresponding to an instrument (for example, a piano tone color), data representing an instrument position (x ₁ ) in the x direction,
It is composed of data representing the musical instrument position (y ₁ ) in the y direction. HAD ₁ is a start address when the musical instrument 1-related data is written in the RAM 20, and by using this and the byte numbers K ₁ , L ₁ , and M _{1 of} each data, the data INMD, ISYD, TSD, and Instrument position data (x
₁ , ₁ , y ₁ ) reading is controlled. It should be noted that, for convenience of the following description, in the RAM 20, the storage area of the data representing x ₁ is X _1, and the storage area of the data representing y ₁ is Y 1.
And

The head addresses HAD ₂ and HAD _{3 of} the data related to the musical instruments 2 and ₃ are used for read control. In addition, the storage area X corresponding to X1
2, X3 and storage areas Y2, Y3 corresponding to Y1 exist, but these are not shown.

FIGS. 5A to 5D show five types of musical tone parameter control information stored in the ROM 18.

In the ROM 18, the storage unit corresponding to FIG. 5A stores the first value for each normalized value P _y of the y coordinate of the musical instrument.
The multiplication coefficient MP1 of is stored. First multiplication coefficient M
P1 is for determining a sound image localization in the longitudinal direction of the playing field, which enables reproduce a sound image corresponding to the musical instrument position playing field foremost by the MP1 = 1 when P _y = 1.

The storage unit corresponding to FIG. 5B stores a fourth multiplication coefficient MP4 for each normalized value P _y of the y coordinate of the musical instrument. The fourth multiplication coefficient MP4 determines the magnitude of the reverb effect in the front-back direction of the playing field, and P _y =
By setting MP4 = 1 when 0, it is possible to give a large reverb effect corresponding to the musical instrument position at the end of the playing field.

The storage unit corresponding to FIG. 5C stores the filter constant CF for each normalized value P _y of the y coordinate of the musical instrument. The filter constant CF determines the cut-off frequency of a low-pass filter, which will be described later, and is set to f _S / 2 (f _S is the sampling frequency of the digital musical instrument signal) when P _y = 1 and the instrument at the front of the playing field. It is possible to expand the range to the treble side according to the position.

In the storage unit corresponding to FIG. 5D, the second and third multiplication coefficients M are set for each normalized value P _x of the x coordinate of the musical instrument.
P2 and MP3 are stored, and lines L ₂ and L ₃ are stored.
Indicates changes in the values of MP2 and MP3, respectively. These multiplication factors MP2 and MP3 are intended to determine the sound image localization in the lateral direction of the playing field, P _x = 1 in MP2 = 1,
A sound image corresponding to the musical instrument position of the playing field right most part by the MP3 = 0 together to enable reproducible, MP in the P _x = 0
By setting 2 = 0 and MP3 = 1, it is possible to reproduce the sound image corresponding to the instrument at the leftmost part of the playing field.

The normalized values P _y and x of the y coordinate of the musical instrument
The coordinate normalization value P _x is determined according to the musical instrument position data (for example, data representing x ₁ and y ₁ ) read from the RAM 20 or the musical instrument position data PS from the musical instrument position setting device 34.

FIG. 6 shows an example of the configuration of the parameter control circuit 44. This circuit 44 includes TG1, TG2 and T.
Digital tone signals S11, S12, S13 from G3
Three parameter control units CN1, each of which receives
It includes CN2 and CN3. Since these parameter control units CN1 to CN3 have the same configuration, CN1 will be described as a representative.

Digital tone signal S11 from TG1
Is supplied to the multiplier 50 and is multiplied by the first multiplication coefficient MP1. The multiplication output from the multiplier 50 is supplied to the low-pass filter 52, and the frequency characteristic is controlled according to the filter constant CF.

The output from the low-pass filter 52 is supplied to the multiplier 54 to be multiplied by the second multiplication coefficient MP2, and is also supplied to the multiplier 56 to be supplied to the third multiplication coefficient MP3.
And further supplied to the multiplier 58 to be multiplied by the fourth multiplication coefficient MP4.

The multiplication outputs of the multipliers 54 and 56 are supplied to the adders 60 and 62, respectively, while the multiplication output of the multiplier 58 is supplied to the reverb circuit 64.

The reverb circuit 64 may have the structure shown in FIG. 7 as an example. In the circuit of FIG.
The input data IN is supplied to the delay circuit DL via the adder ADD, and the output of the delay circuit DL is multiplied by the multiplier MP.
It is supplied to the adder ADD via L, the delay time of the delay circuit DL is set according to the delay control data RVD ₁ of the reverb control data RVD, and the multiplication coefficient data RVD ₂ of the data RVD is set to the multiplier MPL. To output the output data OUT to which the reverb effect is added from the delay circuit DL.

The output of the reverb circuit 64 is supplied to the adders 60 and 62 and added to the outputs of the multipliers 54 and 56, respectively.

The output of the adder 60 is the digital tone signal SR ₁ for the right channel and is supplied to the adder 66. The output of the adder 62 is the digital tone signal SL ₁ for the left channel, which is supplied to the adder 70.

The adder 66 has a parameter controller CN2.
And CN3 to right channel digital tone signal SR
₂ and SR ₃ are provided and added with the signal SR ₁ . In addition, the adder 70 includes parameter control units CN2 and CN.
3 to digital sound signals SL ₂ and S for the left channel
L ₃ is supplied and added with the signal SL ₁ .

The addition output of the adder 66 is the D / A converter 6
8 converts into an analog tone signal AS (R) for the right channel. The added output of the adder 70 is output by the D / A converter 72 to the analog tone signal AS for the left channel.
Is converted to (L).

According to the circuit configuration of FIG. 6, in the multiplier 50, the first multiplication coefficient MP1 is changed according to the y-coordinate normalized value P _y of the musical instrument as shown in FIG. It is possible to move the sound image in the front-back direction of the field. In the low-pass filter 52, the filter constant CF that determines the cutoff frequency is changed according to the y-coordinate normalization value P _y of the musical instrument as shown in FIG. It is possible to simulate a subtle timbre change. In the multipliers 54 and 56, the second and third multiplication coefficients MP2 and MP3 are changed in accordance with the x coordinate normalized value P _x of the musical instrument as shown in FIG. The sound image can be moved. In the multiplier 58, the fourth multiplication coefficient MP4 is changed according to the y-coordinate normalization value P _y of the musical instrument as shown in FIG. 5B, so that the reverb effect depending on the musical instrument position in the front-back direction of the playing field. The size change of can be simulated.

In this embodiment, adders 60, 62, 6
6 and 70 are provided to electrically mix the controlled tone signals and then the two speakers emit the sounds. However, more speakers are provided to spatially mix the controlled tone signals. Alternatively, the mixing adder can be omitted as appropriate.

Of the registers belonging to the register group 22,
The items related to the implementation of the present invention are listed below.

(1) Mode register MOD ... This is 0
Any value from ~ 2 is set. If 0, it is a normal performance mode, if 1 it is a musical instrument position setting mode, if it is 2 it is a performance mode accompanied by reproduction of the sound field of the playing field (hereinafter, simply the reproduction playing mode. Respectively)).

(2) Switch number register SNO ... This is for setting the number n (one of 1 to N) of the switch that is turned on in the playing field selection switch HSS.

(3) Switch flags SFL _{1 to} SFL _N
These flags correspond to the first to Nth playing field selection switches HSS, and 1 is set to the flags corresponding to the switches that are turned on.

(4) Start address register ADR _{0 to} ADR
DR ₃ ... These registers are set with the head addresses HAD _{0 to} HAD _{3 of} FIG. 4, respectively.

(5) x-coordinate register P _x ... This is a register for setting the x-coordinate normalized value P _x .

(6) y coordinate register P _Y ... This is a register in which the y coordinate normalized value P _y is set.

(7) Control variable register i ... This is a register in which the control variable i is set.

FIG. 8 shows the processing flow of the main routine, and this routine starts in response to power-on or the like.

First, at step 80, an initialization routine is executed to initialize various registers. Then, the process proceeds to step 82.

At step 82, MOD is set to 0 to set the normal performance mode. Further, the light emitting element PML is turned on based on MOD = 0.

Next, at step 84, the value of MOD is 0.
Alternatively, it is determined whether it is 2 (playing mode). If the determination result is affirmative (Y), the process proceeds to step 86.

In step 86, it is determined in the keyboard circuit 12 whether there is a key-on event in any keyboard. If the determination result is affirmative (Y), the process proceeds to step 88,
Perform pronunciation processing. That is, the key-on signal and the key data corresponding to the key depression are supplied to the sound source corresponding to the keyboard having the key-on event, and the musical tone corresponding to the depressed key is generated.

When the process of step 88 is completed or when the result of the determination in step 86 is negative (N), the process proceeds to step 90 and it is determined whether or not there is a key-off event on any keyboard. If the result of this determination is affirmative (Y), the routine proceeds to step 92, where muffling processing is performed. That is, the key-off signal and the key data corresponding to the key release are supplied to the sound source corresponding to the keyboard having the key-off event, and attenuation of the musical sound corresponding to the released key is started.

When the processing of step 92 is completed or when the determination result of step 84 or 90 is negative (N), the process proceeds to step 94 and the playing field selection switch H
It is determined whether there is an on event in any of SS. If this determination result is affirmative (Y), the routine proceeds to step 96, where the HSS ON subroutine is executed as described later with reference to FIG.

When the processing of step 96 is completed or when the determination result of step 94 is negative (N), the process proceeds to step 98 and other processing (for example, processing according to setting operation of tone color, volume, etc.). ).

After that, the process returns to step 84 and the subsequent processes are repeated in the same manner as described above.

FIG. 9 shows a subroutine for turning on the HSS. In step 100, the turned-on switch HS is turned on.
The number n of S is set to SNO. Then, the process proceeds to step 102.

In step 102, it is determined whether the MOD value is 2 (reproduction performance mode). If the determination result is affirmative (Y), the process proceeds to step 104. Step 104
Then, it is determined whether the flag SFL _n corresponding to the number n set to SNO is 1 (whether the sound field of the playing field corresponding to the number n is being reproduced). If the determination result is affirmative (Y), the process proceeds to step 106.

At step 106, MOD is set to 0 and PML is turned on. In addition, SFL _{1 to} SFL
Set _N to 0, turn off all HSL,
After this, the routine returns to the routine of FIG. This is the switch H of the number n while reproducing the sound field of the playing field corresponding to the number n.
This is the case where the SS is turned on, in which case the reproduction performance mode is canceled and the normal performance mode is returned to.

If the determination result of step 102 or 104 is negative (N), the process proceeds to step 108 and M
Set 1 to OD and turn off PML. As a result, when the process goes from step 102 to step 108, the normal performance mode shifts to the instrument position setting mode, and when the process moves from step 104 to step 108, the reproduction performance mode shifts to the instrument position setting mode. become.

Next, in step 110, SFL _{n is set} to 1
Is set and the corresponding light emitting element HSL is turned on. Further, the flags SFL other than SFL _n are set to 0, and the light emitting elements HSL corresponding to the respective flags are turned off. As a result, the fact that the playing field corresponding to the turned-on switch HSS is selected is indicated by the lighting of the light emitting element corresponding to the number n. After this, the process proceeds to step 112.

At step 112, the display / control data relating to the playing field corresponding to the number n is transferred from the floppy disk device 24 to the RAM 20 and written therein. Then, the process proceeds to step 114 and the head address HA as shown in FIG.
D ₀ ~HAD ₃ each set to ADR ₀ ~ADR _3. Then, the process proceeds to step 116.

At step 116, initial display is performed on the display panel 34A. That is, from the RAM 20 the number n
Playing place name data HNMD among the corresponding playing place related data
And the playing field symbol data HSYD are read out, and the playing field name HNM and the playing field symbol HSY are displayed at predetermined positions on the display panel 34A based on these data. In reading the data HNMD, the start address of the HNMD is specified by adding 3 to the start address HAD ₀ set in ADR _0, and the number of bytes K _{0 of the} HNMD is read. Also, the data HSYD
When reading, the start address of HSYD is specified by adding K ₀ to [HAD ₀ +3].
The number of bytes L ₀ is read out.

Following the display of HNM and HSY, RAM
Instrument name data INMD and instrument symbol data ISYD for three instruments among instrument-related data corresponding to number n from 20
And instrument position data (data representing x ₁ , y _1, etc.) are read out, and based on these data, the instrument name INM and instrument symbol ISY are displayed on the display panel 34A for each instrument position so as to be surrounded by the instrument display frame FLM. Here, the musical instrument 1 will be described with data reading for each musical instrument as a representative. By adding 3 to the initial address HAD ₁ set in ADR ₁ , the initial address of INMD is designated,
Reading of INMD byte number K ₁ is performed. Also, by adding K ₁ to [HAD ₁ +3], the start address of ISYD is specified, and the reading of the number of bytes L _{1 of} ISYD is performed. Furthermore, [HAD ₁ + 3 + K ₁ ]
By adding L ₁ and M ₁ to the start address of the musical instrument position data, the data representing x ₁ and y ₁ are sequentially read.

Thereafter, at step 118, a sound image initialization subroutine is executed as described later with reference to FIG. Then, in step 120, a sound image moving subroutine is executed as described later with reference to FIG. 11, and then the process returns to the routine of FIG.

FIG. 10 shows a sound image initialization subroutine. In step 122, the reverb control data RVD is read from the RAM 20 and set in the reverb circuit 64. When reading the data RVD, [HAD
₀ + 3 + K ₀ ] is added to the byte number L _{0 of} HSYD to specify the start address of the RVD, and the read of the number of bytes M _{0 of the} RVD is performed.

Next, at step 124, the control variable i is set to 1. Then, the process proceeds to step 126 and it is determined whether i> 3. If the determination result is negative (N), the process proceeds to step 128.

In step 128, the tone color designation data TSD of the musical instrument i is read from the RAM 20 and the i-th tone generator TG is read.
Set to i. When reading the data TSD,
By adding the number of bytes L _{1 of} ISYD to [HAD ₁ + 3 + K ₁ ], the start address of the TSD is specified, and the number of bytes M _{1 of the} TSD is read. After step 128, the process moves to step 130.

In step 130, a characteristic setting subroutine is executed as described later with reference to FIG. Then, in step 132, the value of i is incremented by 1, and then the process returns to step 126, and the subsequent processes are repeated until i> 3.

When i> 3, the tone color setting processing and the characteristic setting processing for three musical instruments have been completed, and step 126
When the result of the determination is positive (Y), the process returns to the routine of FIG.

FIG. 11 shows a sound image movement subroutine. In step 140, it is judged from the touch panel 34B whether or not there is musical instrument position data (coordinate values x, y). If the judgment result is affirmative (Y), Move to step 142.

At step 142, the control variable i is set to 1. Then, the routine proceeds to step 144, where it is determined whether the coordinate values x and y are within the musical instrument display frame FLM of the musical instrument i. If the determination result is affirmative (Y), the process proceeds to step 146.

In step 146, the coordinate values x and y are written in the storage areas Xi and Yi of the RAM 20, respectively. Then, the process proceeds to step 148, and the display position of the musical instrument i on the display panel 34A is changed according to the coordinate values of Xi and Yi.

After this, in step 150, a characteristic setting subroutine is executed as will be described later with reference to FIG. If the determination result is affirmative (Y), the process returns to step 146, and the subsequent processes are repeated as described above. As a result, when the touch position is changed while touching the panel 34B,
Following the change in the touch position, the contents of Xi and Yi are rewritten, and the display position of the musical instrument i on the panel 34A is also changed.

The determination result of step 152 is negative (N).
If so, the process returns to step 140 and the subsequent processes are repeated in the same manner as described above.

For example, if the panel 34B is touched to set the position of the musical instrument 2 after setting the position of the musical instrument 1 as described above, the process goes to step 144 through steps 140 and 142. At this time, step 14
The determination result of 4 is x, y in the instrument display frame FLM of the instrument 2.
Therefore, the result is negative (N), and the process proceeds to step 154.

At step 154, the value of i is incremented by 1. Then, the process proceeds to step 156, and it is determined whether i> 3. In this example, since i = 2, the determination result of step 156 is negative (N), and the process returns to step 144.

In step 144, x and y are F of the musical instrument 2.
Since it is in the LM, the determination result is affirmative (Y). After that, the position of the musical instrument 2 can be changed by performing the processing from step 146 onward in the same manner as described above.

After that, when the panel 34B is touched to set the position of the musical instrument 3, the process goes to step 144 through steps 140 and 142, and after passing through steps 154 and 156 twice, the determination result of step 144 is positive (Y ). Then, the position of the musical instrument 3 can be changed by performing the processing from step 146 onward in the same manner as described above.

When a portion of the panel 34B that does not correspond to any instrument display frame FLM is touched, the result of step 156 becomes positive (Y) after passing through step 154 three times, and the process returns to step 140. If the panel 36B is not touched, step 140
Is negative (N), the process moves to step 158. In step 158, it is determined whether or not there is an on event in the performance mode switch PMS. If not (N), the process returns to step 140.

If the switch PMS is turned on after setting the positions of one or more musical instruments among the musical instruments 1 to 3 as described above or before performing such position setting, the determination result of step 158 is affirmative. (Y), and the process moves to step 160.

At step 160, MOD is set to 2 and the light emitting element PML is turned on. And in FIG.
Return to the routine. As a result, the musical instrument position setting mode is changed to the reproduction performance mode, and the manual performance (or automatic performance) can be performed while reproducing the sound field of the selected performance field.

The instrument position (contents after rewriting of Xi and Yi) newly set in steps 146 to 152 may be transferred to and saved in the floppy disk in the device 24.

FIG. 12 shows a subroutine for setting the characteristic. In step 170, the normalized value P _x obtained by dividing the coordinate value x stored in Xi by the length W shown in FIG.
Is set to P _X, and the normalized value P _y obtained by dividing the coordinate value y stored in Yi by the length H shown in FIG. 3 is set to P _Y.

Next, at step 172, the contents of P _X and P _Y (P _x and P _y ) are read by the ROM 18 as described with reference to FIG.
~ Fourth multiplication coefficients MP1 to MP4 and filter constant C
F), and these pieces of information are set in the controlled parts of the parameter control circuit 44 as shown in FIG.

As a result, in the case of FIG. 10, the sound field of the selected playing field is reproduced based on the read data from the RAM 20, and in the case of FIG. 11, the sound field of the selected playing field. Is reproduced based on the position setting by the musical instrument position setting device 34.

After step 172, the process returns to the original routine (FIG. 10 or 11).

In the above embodiment, the touch panel is used to specify the musical instrument position. However, an operator such as a volume or switch may be used instead of the touch panel to specify the musical instrument position. Further, although the combination of the playing field and the musical instrument is selected, the playing field and the musical instrument may be separately selectable.

[0110]

As described above, according to the present invention, the sound image localization, the reverb effect, the frequency characteristic of the sound, etc. are controlled according to the position information about the sound source, so that a sound field rich in realism can be easily realized. The effect that can be reproduced is obtained.

Furthermore, if the position of the image corresponding to the sound source is controlled according to the position information, it is possible to easily confirm the sound source position visually.

[Brief description of drawings]

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

FIG. 2 is a plan view showing an operator arrangement.

3 is a top view of the musical instrument position setting device 34. FIG.

FIG. 4 is a diagram showing a format of display / control data.

FIG. 5 is a diagram showing stored information in a ROM 18.

FIG. 6 is a circuit diagram of a parameter control circuit 44.

FIG. 7 is a circuit diagram of a reverb circuit 64.

FIG. 8 is a flowchart showing a main routine.

FIG. 9 is a flowchart showing a subroutine for turning on the playing field selection switch HSS.

FIG. 10 is a flowchart showing a subroutine of sound image initialization.

FIG. 11 is a flowchart showing a subroutine for moving a sound image.

FIG. 12 is a flowchart showing a subroutine for setting a characteristic.

[Explanation of symbols]

10 ... Bus, 12 ... Keyboard circuit, 14 ... Operator group, 16 ...
Central processing unit, 18 ... Read only memory, 20
... Random access memory, 22 ... Register group, 2
4 ... Floppy disk device, 26 ... Display panel interface, 28 ... Touch panel interface, 3
0 ... Sound source interface, 32 ... External input interface, 34 ... Instrument position setting device, 34A ... Display panel, 34B ... Touch panel, 36 ... Allocation circuit, 38, 4
0, 42 ... First to third sound sources, 44 ... Parameter control circuit, 46R, 46L ... Output amplifier, 48R, 48L ... Speaker.

Claims (5)

[Claims] 1. A display unit for displaying an image corresponding to a sound source, a sound generating unit having a plurality of speakers, for generating a sound corresponding to the sound source, and information for generating position information regarding the sound source. By controlling the display means based on the generation means and the position information from the information generation means, the display means is caused to display the image at a visible position corresponding to the position information, and based on the position information. A sound processing apparatus comprising: a control unit that localizes a sound image of a sound generated by the sound generation unit to a spatial position corresponding to the position information by controlling the sound generation unit. 2. A sound generating means having a plurality of speakers, which generates a sound corresponding to a sound source, an information generating means for generating position information regarding the sound source, and a position generated by the information generating means. Store means for storing conversion characteristics for converting information into a plurality of sound parameters relating to sounds generated by the sound generating means, and a plurality of position information from the information generating means according to the conversion characteristics stored in the storing means. And converting the sound image of the sound generated from the sound generating means to the plurality of sound parameters by controlling the sound generating means based on the plurality of sound parameters from the converting means. A sound processing device comprising: a control unit that localizes the spatial position according to the position information to be stored. 3. A sound generating means having a plurality of speakers, which generates a sound corresponding to a sound source, a storing means for storing position information on the sound source, and a reading for reading the position information from the storing means. Means for controlling the sound generating means based on the position information read from the storing means, and localizing the sound image of the sound generated by the sound generating means to a spatial position corresponding to the position information. Sound processing device equipped with. 4. Display means for displaying an image corresponding to a sound source, sound generating means having a plurality of speakers, for generating a sound corresponding to the sound source, and information for generating position information regarding the sound source. Generating means, display control means for causing the display means to display the image at a visible position corresponding to the position information by controlling the display means based on the position information from the information generating means; A sound processing apparatus comprising: an effect adding unit that adds a reverb effect to a sound generated by the sound generating unit based on position information from the unit. 5. Display means for displaying an image corresponding to a sound source, sound generating means having a plurality of speakers for generating a sound corresponding to the sound source, and information for generating position information regarding the sound source. Generating means, display control means for causing the display means to display the image at a visible position corresponding to the position information by controlling the display means based on the position information from the information generating means; And a characteristic control means for controlling the characteristic of the sound generated by the sound generating means based on the position information from the means.