JP2003195860A - Musical sound reproducing method for electronic musical instrument and the electronic musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize musical sound reproduction which is not affected by the installation conditions of an electronic musical instrument in a room. <P>SOLUTION: A memory 60 mounted on the electronic musical instrument 10 is stored with a plurality of kinds of sound correction characteristic parameters to be imparted to a musical sound according to the installation conditions of the electronic musical instrument 10. When a user inputs installation conditions with an installation condition selecting operation element 54, corresponding sound correction characteristic parameters are read out from the memory 60 and set in equalizers 40 and 42. The equalizers 40 and 42 impart correction characteristics to musical performance sound signals. The musical performance sound signals having their sound characteristics corrected is reproduced through speakers 20 and 22. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of reproducing a musical tone of an electronic musical instrument and an electronic musical instrument. The characteristic of the musical tone is corrected and reproduced from a speaker in accordance with installation conditions such as the installation position of the electronic musical instrument in a room. By doing so, it is possible to realize musical sound reproduction independent of the installation conditions.

[0002]

2. Description of the Related Art Electronic musical instruments such as an electronic keyboard musical instrument have different purchase conditions depending on the purchaser, and the characteristics of the musical sound reproduced from the speaker vary depending on the installation conditions. However, the conventional electronic musical instrument does not have a function of compensating for the characteristics of musical tones according to the installation conditions, and it may be difficult to hear the musical sounds due to its habit depending on the installation conditions.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and corrects the characteristics of musical tones according to the installation conditions of an electronic musical instrument to reproduce by a speaker, so that it is not affected by the installation conditions. The present invention is intended to provide an electronic musical instrument that realizes musical sound reproduction.

[0004]

According to the method of reproducing a musical sound of an electronic musical instrument of the present invention, a plurality of kinds of acoustic correction characteristics to be given to musical tones are prepared in advance according to the setting condition of the electronic musical instrument, and the actual musical instrument setting condition is set. Select the appropriate acoustic correction characteristics according to
The selected sound correction characteristic is added to a musical sound and reproduced from a speaker. According to this, musical sound reproduction that is not affected by the installation conditions is realized. The acoustic correction characteristics can be selected by, for example, a user's selection operation, or automatic selection based on automatic detection of installation conditions. The installation condition of the electronic musical instrument can be, for example, a condition regarding the installation position of the electronic musical instrument in the room. The speaker for reproducing the musical sound whose acoustic characteristics have been corrected can be, for example, a speaker installed on any one of the back surface, the top surface, and the side surface of the electronic musical instrument housing. The musical sound reproduced from the speaker can be, for example, a presence sound effect or a mixed sound of the presence sound effect and a direct sound.

The electronic musical instrument of the present invention comprises a musical tone generating means for generating musical tones, a storage means for storing a plurality of types of acoustic correction characteristics to be given to musical tones according to the installation conditions of the electronic musical instrument, and the actual installation conditions of the electronic musical instrument. Installation condition input means for inputting information of the above, and corresponding acoustic correction characteristics are read out from the storage means in accordance with the installation condition input by the installation condition input means,
It is provided with an acoustic characteristic correction means for imparting the read acoustic correction characteristic to the musical sound generated by the musical sound generation means, and a speaker for reproducing the musical sound whose acoustic characteristic is corrected.

The electronic musical instrument of the present invention further comprises a fine adjustment operating means for finely adjusting the acoustic correction characteristics by the operation of the operator, and the acoustic characteristic correction means uses the acoustic correction characteristics read from the storage means. Fine adjustment can be made to the content according to the operation by the fine adjustment operation means. The installation condition input means inputs, for example, installation conditions of an electronic musical instrument by a user's manual operation, or
It can be configured by a device that automatically detects installation conditions and automatically inputs them. When the installation condition of the electronic musical instrument is manually input by the user, the installation condition input means displays the installation conditions corresponding to a plurality of types of acoustic correction characteristics stored in the storage means. It can be configured by a selection instruction inputting unit which is operated by the operator by performing a selection instruction from a plurality of types of installation conditions.

The musical sound reproduced from the speaker can be, for example, a presence sound effect or a mixed sound composed of a presence sound effect and a direct sound. The installation condition of the electronic musical instrument can be, for example, a condition related to the installation position of the electronic musical instrument in the room. In this case, the speaker that reproduces the musical sound whose acoustic characteristics have been corrected can be, for example, a speaker installed on any one of the back surface, the top surface, and the side surface of the electronic musical instrument housing. Also in this case,
The acoustic correction characteristic may be, for example, a characteristic of relatively lowering the gain in the bass range under an installation condition relatively close to the front wall surface, as compared with an installation condition relatively far from the front wall surface. .

Further, when the speaker for reproducing the musical sound whose acoustic characteristic has been corrected is provided with left and right channel speakers, the acoustic correction characteristic is such that the electronic musical instrument is relative to the left front inside corner of the room. In the installation condition where the electronic musical instrument is installed at a relatively close position, the gain in the low range of the left channel speaker reproduction system is lower than that in the installation condition where the electronic musical instrument is installed at a position relatively far from the left front entrance corner in the room. It is a characteristic of relatively lowering, and under an installation condition in which the electronic musical instrument is installed at a position relatively close to the right front inside corner of the room, the electronic musical instrument is relatively placed relative to the right front inside corner of the room. It is possible to obtain a characteristic that the gain in the low frequency range of the right channel speaker reproduction system is relatively reduced as compared with the installation condition in which it is installed at a position farther away.

Further, under an installation condition in which the electronic musical instrument is installed at a position relatively close to the left front entrance in the room, the electronic musical instrument is placed relatively far from the left front entrance in the room. Compared to the installation condition, the gain of the high frequency range of the left channel speaker reproduction system is relatively increased, and the electronic musical instrument is installed relatively close to the right front inside corner of the room. The condition is that the electronic musical instrument has a characteristic that the gain in the high frequency range of the right channel speaker reproduction system is relatively increased as compared with the installation condition in which the electronic musical instrument is installed at a position relatively far from the right front entrance corner in the room. You can also

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. Here, a case where the present invention is applied to an electronic keyboard instrument such as an electronic piano will be described. FIG. 2 shows the overall structure of the electronic musical instrument according to the present invention. The electronic musical instrument 10 is
A keyboard 14 and an operation panel 15 are provided on the front side of the housing 12. Main speakers 16 and 18 are installed on the left and right of the upper front surface 12a of the housing 12 (the portion of the front surface located above the keyboard 14) with the sound emitting surface facing the player. . Auxiliary speakers 20 and 22 are installed on the left and right of the back surface 12b of the housing 12 with their sound emitting surfaces facing away from the player.

FIG. 1 shows an electric circuit configuration mounted on the electronic musical instrument 10. Accompaniment information is sequentially read from the MIDI information generation unit 24 based on MIDI information (MIDI data) prepared in advance. The performance information generator 26 outputs performance information according to the performance (keyboard operation) by the performer. The tone generator circuit 28 generates a musical tone signal corresponding to accompaniment information and performance information as a 2-channel stereo signal. The signal processing circuit 30 is composed of an FIR (non-recursive) filter, a delay (delayer), an LPF (low pass filter), an HPF (high pass filter), etc. (not shown), and is generated by the sound source circuit 28. Based on the musical tone signals thus generated, presence sound signals (reflected sound signals, reverberation sound signals) to be reproduced by the speakers 16, 18, 20, 22 are respectively generated in order to create a presence effect (realistic effect).

The direct sound signal (the left channel musical sound signal generated by the sound source circuit 28) and the presence sound signal reproduced from the left channel main speaker 16 are sent to the attenuator 31 for the direct sound signal and the attenuator 32 for the presence sound signal. Input into the summing amplifier 72, and the volume of each of them is adjusted individually. The output signal from the summing amplifier 72 is interlocked with other systems by the master volume 80, and the volume of the entire system is adjusted. Then, the output signal is amplified by the power amplifier 36 and reproduced from the main speaker 16.

The direct sound signal (the right channel musical sound signal generated by the sound source circuit 28) and the presence sound signal reproduced from the right channel main speaker 18 are sent to the attenuator 33 for the direct sound signal and the attenuator 34 for the presence sound signal. Input into the summing amplifier 74, the volume of each is adjusted individually, and the summing amplifier 74 mixes and outputs the mixed result. The output signal from the summing amplifier 74 is interlocked with other systems by the master volume 80 to adjust the volume of all the systems, and then amplified by the power amplifier 38 and reproduced from the main speaker 18.

The direct sound signal (the left channel musical sound signal generated by the sound source circuit 28) and the presence sound signal reproduced from the left channel auxiliary speaker 20 are sent to the attenuator 43 for the direct sound signal and the attenuator 44 for the presence sound signal. Input to the summing amplifier 76, the volume of each is adjusted individually, and the summing amplifier 76 mixes and synthesizes the output. The output signal from the summing amplifier 76 is
After the frequency characteristic is adjusted by the equalizer 40, the volume of the entire system is adjusted by interlocking with other systems by the master volume 80, amplified by the power amplifier 48, and reproduced from the auxiliary speaker 20.

The direct sound signal (the right channel musical sound signal generated by the sound source circuit 28) and the presence sound signal reproduced from the right channel auxiliary speaker 22 are sent to the attenuator 45 for the direct sound signal and the attenuator 46 for the presence sound signal. Input into the summing amplifier 78, the sound volume is adjusted individually, and the summing amplifier 78 mixes and outputs the mixed sound. The output signal from this summing amplifier 78 is
After the frequency characteristic is adjusted by the equalizer 42, the volume of the entire system is adjusted by interlocking with other systems by the master volume 80, amplified by the power amplifier 50, and reproduced from the auxiliary speaker 22.

The equalizers 40 and 42 are composed of parametric equalizers, graphic equalizers and the like.

On the operation panel 15 of the electronic musical instrument 10, the presence effect type selection operator 52 and the installation condition selection operator 5 are provided.
4, fine adjustment operator 56, volume adjustment operator 57 and the like are installed. Reflected sound parameters for realizing a plurality of types of presence effects are stored in the memory 58, and reflected sound parameters corresponding to the presence effect of the type selected by the presence effect type selection operator 52 are stored in the memory 58.
Read out from the speaker and set in the signal processing circuit 30, and a corresponding presence sound signal is generated for each speaker channel.

The memory 60 stores a plurality of types of acoustic correction characteristic parameters to be added to musical tones according to the installation conditions of the electronic musical instrument 10, and the acoustic correction corresponding to the installation conditions selected by the installation condition selection operator 54. Characteristic parameters are read from the memory 60 and set in the equalizers 40 and 42, and for each musical sound reproduced from the auxiliary speakers 20 and 22,
Appropriate acoustic correction characteristics are added. Fine adjustment operator 56
Is read from the memory 60 and equalized by the equalizers 40, 42.
The acoustic correction characteristics set to are finely adjusted by the user's manual operation. This fine adjustment can be performed for each equalizer 40, 42. The acoustic correction characteristics of the equalizers 40 and 42 are retained even when the power is turned off, and when the power is turned on again, the setting state before the power is turned off is restored. The volume control operator 57 is an attenuator 31, 32, 33, 34, 4
Volume adjustment of 3, 44, 45, 46 and the master volume 80 is manually set by the user.

An example of the construction of the installation condition selection operator 54 is shown in FIG. The installation condition selection operator 54 is provided on the operation panel 15
A rotary dial type switching operator 55 is installed on the operation panel 15, and a display 53 in characters indicating the installation conditions is provided on the operation panel 15 corresponding to each switching position. FIG. 3 shows a case in which the installation position of the electronic musical instrument 10 in the room is selected as the installation condition, and a "display left corner", "near the left and right center walls", and "left and right center walls" are displayed as characters 53 at each switching position. It shows the case where "far" and "right corner" are added. The user rotates the rotary dial type switching operator 55 in accordance with the actual installation condition of the electronic musical instrument 10 and moves the instruction arrow 59 attached to the operator 55 to the switching position where the corresponding installation condition is displayed. To match. As a result, from the memory 60,
Acoustic correction characteristic parameters corresponding to the instructed installation conditions are read out and set in the equalizers 40 and 42.

The installation condition display 53 is not limited to the display of characters directly representing the installation conditions, but may be a number representing the installation conditions, a symbol such as an alphabet ("1", "2",
"3", ... Or "A", "B", "C", ...
Etc.). In this case, if you clearly indicate in the instruction manual which symbol means which installation condition,
The user can select the installation condition by referring to it. Further, it is also possible to display a picture (a schematic diagram as shown in FIG. 4 (a), FIG. 5 (a), FIG. 6 (a), and FIG. 7 (a) described later}. Further, the installation condition selection operator 54 is not limited to that shown in FIG. 3, and may be configured by, for example, a push button switch provided individually for each installation condition. In this case, the selection of the last pressed switch is valid. Further, the selection is not limited to the mechanical switch, and selection can be performed by a pointer or the like on the display screen.

A specific example of the acoustic characteristic correction parameter stored in the memory 60 will be described. Here, the installation condition selection operator 54 is used as the installation condition to set the electronic musical instrument 10 in the room.
Select the installation position of, as the installation conditions,
By using the installation condition selection operator 54 such as the rotary dial type switching operator 55 shown in FIG. 3, it is possible to select four types of left entry corner, near left and right center walls, far left and right center walls, and right entry corner. To do. In addition, the acoustic characteristics show the case where pink noise is reproduced and measured at the player's position.

FIG. 4 shows a case where the electronic musical instrument 10 is installed in the left entrance corner 64 of the room 62, as schematically shown in a plan view of FIG. At this time, since the left and right channel auxiliary speakers 20 and 22 are located near the front wall surface 66 in the room 62, the reproduced sound from the auxiliary speakers 20 and 22 is as shown in FIG.
As shown in (b), the bass range is enhanced and the treble range is attenuated (the sound sounds muffled). Especially, since the auxiliary speaker 20 for the left channel is located at the inner corner, the tendency becomes stronger. Therefore, in the memory 60,
As a characteristic for canceling this, as shown in FIG.
The correction characteristics for attenuating the low range and enhancing the high range are stored. The correction characteristics of the left channel auxiliary speaker 20 are
Compared to the correction characteristics of the auxiliary speaker 22 on the right channel,
This is a characteristic in which the lower range is attenuated and the higher range is enhanced. It should be noted that, when enhancing the characteristics, if the upper limit is set to about +3 to +5 dB, the reproduced sound after correction is less likely to be distorted, and the audible feeling is good. Electronic musical instrument 10 in room 6
2 is installed in the left-hand corner 64, by selecting “left-hand corner” with the installation condition selection operator 54, the correction characteristic of FIG. 4C is read from the memory 60 and the equalizer 4 is read.
0, 42, and as a result, the frequency characteristics of the reproduced sounds of the left and right auxiliary speakers 20, 22 are shown in FIG.
As shown in, the characteristics are flattened.

FIG. 5 shows a case where the electronic musical instrument 10 is installed in the right-hand corner 68 of the room 62, as schematically shown in the plan view of FIG. At this time, since the left and right auxiliary speakers 20, 22 are located near the front wall surface 66 in the room 62, the reproduced sound of the auxiliary speakers 20, 22 is as shown in FIG.
As shown in (b), the bass range is enhanced and the treble range is attenuated. Especially, the right channel auxiliary speaker 2
Since 2 is located in the inner corner, the tendency becomes remarkable. Therefore, the memory 60 has a characteristic of canceling this as shown in FIG.
As shown in (c), the correction characteristics for attenuating the low frequency range and enhancing the high frequency range are stored. The correction characteristics of the auxiliary speaker 22 for the right channel are as follows.
Compared with the correction characteristic of, the bass range is attenuated more and the treble range is enhanced. In addition, when enhancing the characteristics, +3
If the upper limit is set to about +5 dB, the corrected reproduction sound is less likely to be distorted, and the audibility is good. When the electronic musical instrument 10 is installed in the right-handed corner 68 of the room 62, by selecting “right-handed corner” with the installation condition selection operator 54, the correction characteristic of FIG. 5C is read from the memory 60. Are set in the equalizers 40 and 42, and as a result, the frequency characteristics of the reproduced sounds of the left and right auxiliary speakers 20 and 22 become flattened characteristics as shown in FIG. 5D.

FIG. 6 shows the electronic musical instrument 10 in the right and left corners 64, 6 of the room 62, as schematically shown in a plan view in FIG.
8 shows a case where it is installed away from the front wall surface 66 and near the front wall surface 66. At this time, the left and right channel auxiliary speakers 2
Since 0 and 22 are located in the vicinity of the front wall surface 66 in the room 62, the reproduced sound of the auxiliary speakers 20 and 22 is shown in FIG.
As shown in, the bass range is enhanced and the treble range is attenuated (same for left and right channels). Therefore, the memory 6
As shown in FIG. 6C, a correction characteristic for attenuating the low tone range and enhancing the high tone range (the same for the left and right channels) is stored in 0 as a characteristic for canceling this. Also in this case,
When the characteristics are enhanced, if the upper limit is set to about +3 to +5 dB, the reproduced sound after correction is less likely to be distorted, and the audibility is good. When the electronic musical instrument 10 is installed away from the left and right corners 64 and 68 of the room 62 and is installed near the front wall surface 66, by selecting “near the left and right center walls” with the installation condition selection operator 54, as shown in FIG. The correction characteristic of (c) is read from the memory 60 and set in the equalizers 40 and 42. As a result, the left and right auxiliary speakers 20, 2
The frequency characteristic of the reproduced sound of No. 2 becomes a flattened characteristic as shown in FIG.

FIG. 7 shows the electronic musical instrument 10 in the left and right corners 64 and 6 of the room 62, as schematically shown in a plan view in FIG.
8 shows the case of installing at a position apart from 8 and the front wall surface 66. At this time, since the left and right channel auxiliary speakers 20 and 22 are located away from the front wall surface 66 in the room 62, the reproduced sound of the auxiliary speakers 20 and 22 is about -3 dB as shown in FIG. 7B. Gain decreases but becomes relatively flat (same for left and right channels). Therefore, as shown in FIG. 7C, the memory 60 stores a relatively flat characteristic (the same for the left and right channels). When the electronic musical instrument 10 is installed at a position away from the left and right corners 64 and 68 of the room 62 and away from the front wall surface 66, the installation condition selecting operator 54 is used to “remove the left and right central walls”.
7C, the correction characteristics of FIG. 7C are read from the memory 60 and set in the equalizers 40 and 42, and as a result, the left and right auxiliary speakers 20, 22 of the left and right channels are selected.
The frequency characteristic of the reproduced sound of is a relatively flat characteristic as shown in FIG. Also in this case, when enhancing the characteristics, if the upper limit of +3 to +5 dB is kept, the reproduced sound after correction is less likely to be distorted, and the audibility is good.

Incidentally, in order to compensate for the decrease (about -3 dB) in the entire pre-correction characteristic (FIG. 7 (b)), the adjustment amount of the attenuators 43, 44, 45, 46 is manually or automatically increased by about +3 dB. can do. Alternatively,
Instead of increasing the adjustment amount of the attenuators 43, 44, 45, 46, the correction characteristic {FIG. 7 (c)} itself may be increased by about +3 dB. In addition, a slight pitch may occur in the midrange of the pre-correction characteristic {Fig. 7 (b)}. In such a case, the midrange of the correction characteristic {Fig. 7 (c)} is canceled out. It can be set to a characteristic.

The correction characteristics set in the equalizers 40 and 42 can be finely adjusted by the user operating the fine adjustment operator 56 according to his or her preference.

In the above embodiment, the auxiliary speaker 2 is used.
Although the mixing composite signal of the direct sound signal and the presence sound signal is reproduced from 0 and 22, only the presence sound signal may be reproduced. In addition, the main speaker 1
Attenuators 31, 33 in the reproduction system of 6, 18
The frequency characteristics may be adjusted by providing equalizers in each stage. In addition, the auxiliary speakers 20, 22
In the reproduction system of (1), a delay (delay device) may be provided after the summing amplifiers 76 and 78 to give an appropriate delay time to enhance the reverberation. Further, in the reproduction system of the auxiliary speakers 20 and 22, an LPF may be provided after the summing amplifiers 76 and 78 to individually remove signals in the high frequency range to emphasize the presence sound.

Further, since the main speakers 16 and 18 are not directed to the wall surface side, no correction is made. However, if necessary, the correction may be made according to the installation conditions. Further, although the main speakers 16 and 18 are arranged on the left and right of the upper front surface 12a (the portion of the front surface located above the keyboard 14) of the housing 12 of the electronic musical instrument 10, the lower front surface 12f of the housing 12 is arranged.
(A portion of the front surface located below the keyboard 14. FIG.
It can also be placed to the left or right of (see). In addition, the auxiliary speakers 20 and 22 are provided on the rear surface 12b of the housing 12 of the electronic musical instrument 10.
However, it may be arranged on the left and right side surfaces 12c and 12d or the upper surface 12e. Further, although there are four types of selectable installation conditions, the present invention is not limited to this. Moreover, although the condition of the installation position is set as the installation condition, various installation conditions such as the size of the room to be installed, the type of room (Japanese room, Western room, etc.), the material of the wall surface, etc. can be set. Further, although the user manually inputs the installation condition, the installation condition can be automatically detected (for example, the distance from the electronic musical instrument 10 to the wall is automatically measured) and automatically input.

Although the main speakers 16 and 18 and the auxiliary speakers 20 and 22 are both full-range speakers, a speaker for mid-low range and a speaker for treble range are prepared, respectively, and a network circuit is also provided for the middle-range and low-range speakers. It is also possible to have a two-way configuration by dividing into the sound range and the high range.
The present invention can also be applied to electronic musical instruments other than electronic keyboard musical instruments.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment in which the present invention is applied to an electronic keyboard instrument, and is a block diagram showing a configuration of an electric circuit mounted on the electronic keyboard instrument.

FIG. 2 is a perspective view and a side view showing the overall configuration of the electronic keyboard instrument of FIG.

3 is a front view showing a configuration example of an installation condition selection operator arranged on the operation panel of the electronic keyboard instrument of FIG.

FIG. 4 shows acoustic frequency characteristics before correction at a player position, correction characteristics by an equalizer, and acoustic frequency characteristics after correction at a player position when the electronic keyboard instrument of FIG. 1 is arranged in a left corner of a room. FIG.

FIG. 5 shows the acoustic frequency characteristics before correction at the player position, the correction characteristics by the equalizer, and the acoustic frequency characteristics after correction at the player position when the electronic keyboard instrument of FIG. 1 is placed in the right corner of the room. FIG.

6 is an acoustic frequency characteristic before correction at the performer position when the electronic keyboard instrument of FIG. 1 is installed near the left and right corners of a room and near a wall surface, a correction characteristic by an equalizer,
It is a figure which shows the acoustic frequency characteristic after correction | amendment in a player position.

FIG. 7 shows the acoustic frequency characteristics before correction at the performer's position when the electronic keyboard instrument of FIG. 1 is installed at positions away from the right and left corners of the room and away from the wall surface, the correction characteristics by the equalizer, and the performer. It is a figure which shows the acoustic frequency characteristic after correction | amendment in a position.

[Explanation of symbols]

10 ... Electronic keyboard musical instrument (electronic musical instrument), 12 ... Electronic musical instrument housing, 16, 18, 20, 22 ... Speaker, 28 ... Sound source circuit (musical tone generating means), 40, 42 ... Equalizer (acoustic characteristic correcting means), 53 ... Installation condition display, 54 ... Installation condition selection operator (installation condition input means, selection instruction input means), 5
6 ... Fine adjustment operator (fine adjustment operation means), 60 ... Memory (storage means), 62 ... Room, 64 ... Left entrance corner, 66 ... Front wall surface, 68 ... Right entrance corner.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Tanitaka             Yamaha stock, 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka             In the company F-term (reference) 5D378 HA00 JA01 XX15

Claims (13)

[Claims] 1. A plurality of types of acoustic correction characteristics to be given to a musical sound are prepared in advance according to the installation condition of an electronic musical instrument, and the corresponding acoustic correction characteristic is selected according to the actual installation condition of the electronic musical instrument, and the selected selection is made for the musical sound. Method for reproducing a musical sound of an electronic musical instrument in which the specified acoustic correction characteristics are added and reproduced from a speaker. 2. The musical tone reproduction method for an electronic musical instrument according to claim 1, wherein the electronic musical instrument installation condition is a condition regarding an installation position of the electronic musical instrument in a room. 3. The musical sound reproduction of an electronic musical instrument according to claim 1, wherein the speaker for reproducing the musical sound whose acoustic characteristics are corrected is a speaker installed on any one of a back surface, an upper surface and a side surface of an electronic musical instrument housing. Method. 4. The musical sound reproduction method for an electronic musical instrument according to claim 1, wherein the musical sound reproduced from the speaker is a presence sound effect or a mixed sound composed of a presence sound effect and a direct sound. 5. A musical tone generating means for generating a musical tone, a storage means for storing a plurality of types of acoustic correction characteristics to be given to the musical tone according to the setting conditions of the electronic musical instrument, and information on the actual setting conditions of the electronic musical instrument. Installation condition input means, and a corresponding acoustic correction characteristic is read from the storage means in accordance with the installation condition input by the installation condition input means, and the read acoustic correction characteristic is generated by the musical sound generation means. An electronic musical instrument comprising: an acoustic characteristic correcting means to be applied to the electronic musical instrument; and a speaker for reproducing a musical sound whose acoustic characteristic is corrected. 6. A fine adjustment operating means for finely adjusting the acoustic correction characteristic by an operation of an operator, wherein the acoustic characteristic correcting means adjusts the acoustic correction characteristic read from the storage means. The electronic musical instrument according to claim 5, wherein the electronic musical instrument is finely adjusted to the contents according to the operation by. 7. The installation condition input means is operated by the operator to select and operate from among the plurality of kinds of installation conditions displayed as the installation conditions corresponding to the plurality of kinds of acoustic correction characteristics stored in the storage means. 7. The electronic musical instrument according to claim 5, which comprises a selection instruction inputting means for inputting by inputting. 8. The electronic musical instrument according to claim 5, wherein the musical sound reproduced from the speaker is a presence sound effect or a mixed synthetic sound of the presence sound effect and a direct sound. 9. The installation condition of the electronic musical instrument is a condition regarding an installation position of the electronic musical instrument in a room.
The electronic musical instrument according to any one of 1. 10. The electronic musical instrument according to claim 9, wherein the loudspeaker for reproducing the musical sound whose acoustic characteristics are corrected is a loudspeaker installed on any one of a back surface, an upper surface and a side surface of a housing of the electronic musical instrument. 11. The acoustic correction characteristic is a characteristic that, under an installation condition relatively close to a front wall surface, lowers a gain in a low frequency range as compared with an installation condition relatively far from the front wall surface. The electronic musical instrument according to claim 10. 12. A speaker for reproducing a musical sound whose acoustic characteristics are corrected comprises left and right channel speakers, and the acoustic correction characteristic is relatively close to that of an electronic musical instrument with respect to a left front inside corner. In the installation condition where the electronic musical instrument is installed at a position relatively to the installation condition where the electronic musical instrument is installed at a position relatively far from the left front entrance corner in the room, the gain of the low range of the left channel speaker reproduction system is relatively It is a characteristic that deteriorates, and under an installation condition in which the electronic musical instrument is installed at a position relatively close to the right front inside corner of the room, the electronic musical instrument is located far from the right front inside corner of the room. 12. The electronic musical instrument according to claim 10 or 11, which has a characteristic of relatively lowering the gain in the low frequency range of the right channel speaker reproduction system as compared with the installation condition of installing in the above. 13. A speaker for reproducing a musical sound whose acoustic characteristics are corrected comprises left and right channel speakers, and the acoustic correction characteristic is relatively close to that of an electronic musical instrument left front corner in a room. In the installation condition where the electronic musical instrument is installed in a position, the gain in the high frequency range of the left channel speaker reproduction system is relatively large compared to the installation condition where the electronic musical instrument is installed in a position relatively far from the left front entrance corner in the room. It is a characteristic of raising the electronic musical instrument, and under an installation condition in which the electronic musical instrument is installed at a position relatively close to a right front inside corner of the room, the electronic musical instrument is located far from a right front inside corner of the room. The electronic musical instrument according to any one of claims 10 to 12, wherein the electronic musical instrument has a characteristic of relatively increasing the gain in the high frequency range of the right channel speaker reproduction system as compared with the installation condition of the above.