JP2008009236A - Musical tone apparatus and musical tone control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a musical tone apparatus for demonstrating excellent tone and effect by changing an output amount to a sound board and an output amount to a sounding body, based on the tone and the effect. <P>SOLUTION: Each data of the tone and the effect is converted to a cutoff frequency data in a decoder 57, and sent to five filters of a right filter 31, a left filter 36, a high region filter 41, a middle region filter 46, and a low region filter 51, and a frequency band of a musical tone signal which is output from the sound boards 1, 2 and 3 and speakers 7L and 7R, is changed. Moreover, it is converted to a volume balance data in the decoder 57, and sent to five volume circuits of a right volume circuit 32, a left volume circuit 37, a high region volume circuit 42, a middle region volume circuit 47 and a low region volume circuit 52, and the output amount of the musical tone signal which is output from the sound boards 1, 2 and 3 and the speakers 7L and 7R, is changed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a musical sound device or a musical sound control method, and more particularly, to a device that vibrates a soundboard of a musical instrument and generates and emits a musical sound from the soundboard.

  Conventionally, in the case of vibrating such a soundboard (diaphragm), an electromagnetic driving body is fixed to a piano soundboard with bolts or wood screws, and a musical sound signal is sent to the electromagnetic driving body. Instead, the soundboard is vibrated, and musical sounds are emitted and emitted from this soundboard. Such a soundboard is attached to an attachment member such as a frame.

Japanese Patent Laid-Open No. 5-80748 JP-A-8-146949 JP-A-8-111896 JP-A-4-156799 JP-A-53-69624 JP-A-4-56996 JP 5-73039 A

  However, when sound is produced with such a soundboard (vibration plate), the sound of the piano can be produced sufficiently, but not all the sounds of other tones can be produced, and there are cases where it is insufficient. It was. In addition, effects may be added to the musical sound to produce various musical effects, but even if such an effect is added to the musical sound signal, the effect is sufficiently applied to the musical sound emitted from the soundboard. I did not appear.

  In order to achieve the above object, the present invention converts a musical sound signal composed of a plurality of types of musical sounds into sound and emits the sound, and the musical sound signal of each stereo channel for forming a sound image is generated. Based on the number of sound generators according to the number of stereo channels and the musical factor (tone, effect, touch or pitch, etc.) And switching means for switching the output amount of the tone signal to the sounding body.

  In the present invention, the frequency band of the musical sound signal sent to the electromagnetic driving body or the sounding body is changed, the switching of the output amount of the musical sound signal to the electromagnetic driving body and the sounding body, and the change of the frequency band. The change of the frequency band of the musical sound signal and the switching of the output amount are in accordance with the change of the musical factor (tone, effect, touch, pitch, etc.) of the musical signal. .

  As a result, based on musical factors (tone, effect, touch, pitch, etc.), the amount of output to the soundboard of the electromagnetic drive and the amount of output to the sound generator can be switched, and the sound emitted from the soundboard In the case of musical factors that are insufficient by themselves, sound is emitted using a sound generator, and the characteristics of the musical factors can be fully exhibited.

  In addition, if the change of the frequency band of the output musical sound signal and the switching of the output amount are interlocked according to multiple musical factors (tone, effect, touch, pitch, etc.), it will be selected The selection of the optimum frequency band and the output amount for the set “plurality” of musical elements is selected “simultaneously”.

  In addition, a plane wave is emitted from the soundboard, and a spherical wave / cylindrical wave is emitted from the sounding body, and the output amount of the musical sound signal output from the sounding board and the sounding body is switched according to the musical element of the musical factor. Therefore, the plane wave or the spherical wave can be switched or the mixing ratio of the plane wave and the spherical wave can be changed according to the musical element of the musical factor.

(1) Large soundboard 1, medium soundboard 2, small soundboard 3
1 and 2 show the structure of the large soundboard 1, the middle soundboard 2, and the small soundboard 3. FIG. A large soundboard 1 is disposed under a shelf 6 on which a keyboard on the front of an acoustic upright piano is placed, and a soundboard 2 and a small soundboard 3 are disposed on the shelf 6.

  The large sound board 1, the medium sound board 2 and the small sound board 3 are rectangular plates having the same thickness and the same width (the same horizontal length), but the heights are different, and as a result. Are different in size. In the order of the large sound board 1, the middle sound board 2, and the small sound board 3, the height of each sound board 1, 2, and 3 is reduced and the size is also reduced.

  Both ends of the large sound board 1, the medium sound board 2, and the small sound board 3 are bonded to the frame plates 5 and 5 with an adhesive or fixed with nails, bolts, wood screws, or the like. The large sound board 1, the middle sound board 2, and the small sound board 3 vibrate with both ends serving as nodes and the central portion as a belly, and vibrating surrounding air to produce sound.

  The frame plates 5 and 5 are on the instrument main body side such as side plates, frame trees, side soundboards, columns, frames, roofs, bottom plates, shelves, and frames. A sounding bar (not shown) is vertically or diagonally bonded to the back surface of the large sounding board 1, the middle sounding board 2, and the small sounding board 3 and bonded or bonded thereto with nails, bolts, wood screws or the like.

  The large sound board 1, the middle sound board 2, and the small sound board 3 are wooden rectangular plates, such as an electronic keyboard instrument, an electronic musical instrument, an acoustic musical instrument, or a combination instrument thereof such as an electronic piano, an electronic organ, and a mute piano. The soundboard of an actual instrument. The sound board 1 is made of unimpregnated wood, plywood, laminated wood, glass or hard resin (acrylic), which is impregnated with dry or moisture-containing wood or resin, and has little deflection, The degree of deflection is small, the rigidity is large, and it is close to a rigid body.

  The sound board 1 is made of the same wood as that used for a keyboard instrument such as a normal acoustic piano or organ, or an electronic keyboard instrument such as a mute piano, electronic piano, or electronic organ. The same material as the front plate, back plate, side plate, torso, fingerboard, etc. of string instruments such as cello and violin, percussion instrument such as xylophone and drum, and wooden parts such as membrane and torso may be used.

  The material of the soundboard 1 may be aluminum, stainless steel, iron, titanium, magnesium, brass, platinum or an alloy thereof, a steel plate such as a cold rolled steel plate, glass, hard resin (acrylic), or the like. Note that the same material may be used for the tube and body of wind instruments such as flutes and oboe, the sounding body of percussion instruments such as cymbals and triangles, and the metal parts such as the trunk.

  The large sound board 1, the sound board 2, and the small sound board 3 extend in a substantially horizontal direction / almost lateral direction, and are substantially vertical in the order of the small sound board 3, the sound board 2, and the large sound board 1 from above. It is arranged along the direction / almost longitudinal direction. The lengths of the small sound board 3 and the mid sound board 2 are the same, and the horizontal length (width) of the large sound board 1 is longer than the others. Of the musical tone signals consisting of multiple types of musical sounds, the components are divided from top to bottom in the order of the high tone component, the middle tone component, and the low tone component, and the mechanical displacement / mechanical change / machine according to the tone signal in each of these ranges. Vibrations are generated and musical sounds are produced and emitted.

  By the way, the large sound board 1, the middle sound board 2, and the small sound board 3 are flat, and the surface is flat. Therefore, the sound produced and emitted from these soundboards 1, 2, and 3 is a plane wave, and there is no difference in sound pressure between the left and right ears depending on the position of the ear, compared to the case of a spherical wave. Even if the positions of the ears with respect to 1, 2, and 3 are considerably shifted, there is no difference in sound pressure between the left and right ears, and the position of the sound image is not shifted depending on the position of the ears.

  Then, as described above, the treble, middle, treble, and bass are arranged in a vertical / substantially vertical direction, and each of these sounds is a plane wave. Regardless of whether the position is shifted to the left or right, it is difficult to feel the difference in sound pressure between the left and right ears, and the position of the sound image does not shift depending on the position of the ears.

  The large sound board 1, the medium sound board 2, and the small sound board 3 may be arranged side by side in a substantially horizontal direction / almost horizontal direction, but in this case, the left and right ears of each of the high, medium, high, and low sound ranges are arranged. Differences in sound pressure are generated, and the sound image position of each sound range is also shifted depending on the position of the ear, and the sound image position is shifted depending on the position of the ear, resulting in an uncomfortable sense of hearing.

  In addition, since the high tone is stronger in directivity than the low or middle tone, when the tone is radiated from a wide range like the small sound board 3, the high tone is evenly distributed over a wide range. This makes it difficult to feel the difference in sound pressure between the left and right ears, and the position of the sound image does not deviate depending on the position of the ears.

  A left speaker 7L and a right speaker 7R are installed on the shelf boards fixed in the left and right pianos of the middle sound board 2 and the small sound board 3, respectively. In the left speaker 7L and the right speaker 7R, ambient air is vibrated and generated by the cones 8 and 9 in the speaker, and a musical sound signal composed of a plurality of types of musical sounds is converted into sound and emitted. The tone signal is emitted as a tone signal of each stereo channel for forming a sound image, and a sound image is formed.

  Each of the left speaker 7L and the right speaker 7R is provided with a small high-pitched cone 8 for converting a musical sound signal into sound, and a large medium-low bass cone 9 for medium-low sound that also converts a musical sound signal into sound. It has been. The high tone cone 8 and the middle bass tone cone 9 are arranged side by side along a substantially vertical direction / almost longitudinal direction. As a result, the high-pitched sound image and the mid-low sound image do not shift.

  Note that only one cone 8 or 9 may be provided in one left speaker 7L and one right speaker 7R. Further, the left speaker 7L and the right speaker 7R may be divided / separated into two parts, upper and lower or left and right, with respect to the high tone cone 8 and the middle / low tone cone 9.

  The number of left speakers 7L and right speakers 7R is two according to the number of stereo channels, but may be three or more according to the number of stereo channels, or three without depending on the number of stereo channels. It may be the above.

  The two left and right left speakers 7L and 7R may be replaced with a tweeter or a soundboard. In this case, the left and right soundboards extend substantially vertically / vertically and a sound image is formed by a longitudinal plane wave from the soundboard, and an electromagnetic drive unit is attached to the back surface of the soundboard. The replaced soundboard may extend substantially horizontally / substantially laterally.

  The left speaker 7L and the right speaker 7R do not install the entire speaker box in a piano instrument, but only the speaker cone and the plate around the cone are fixed to the frame or skeleton of the instrument. Also good. The left speaker 7L and the right speaker 7R may be disposed on both sides of the large sound board 1.

  The low sound electromagnetic drive unit 11, the medium sound electromagnetic drive unit 12, and the high sound electromagnetic drive unit 13 are joined (including attachment / connection / adhesion) to the back surfaces of the large sound board 1, the sound sound board 2, and the small sound board 3. The same). This joining includes adhesion with an adhesive, fixing with a nail, a bolt, a wood screw, or the like.

  When these soundboards 1, 2, and 3 are viewed from the front side, the bass electromagnetic drive unit 11 is shifted to the left side from the center of the large soundboard 1, and the medium sound electromagnetic drive unit 12 is on the right side from the center of the soundboard 2. The treble electromagnetic drive unit 13 is shifted to the left side from the center of the small sound board 3.

  Thus, if the electromagnetic drive units 11 to 13 are located at positions shifted from the centers of the soundboards 1 to 3, resonance of the soundboards 1 to 3 can be prevented. In addition, the electromagnetic drive units 11-13 may be located in the center of each soundboard 1-3. Thereby, each soundboard 1-3 can be greatly vibrated / changed / displaced, and a louder sound can be emitted.

  These electromagnetic drive units 12 and 13 are located at the center of the upper and lower edges of the sound board 2 and the small sound board 3. Thereby, each soundboard 2, 3 can be greatly vibrated / changed / displaced. On the other hand, the electromagnetic drive unit 11 is located near the upper edge of the soundboard 1. As a result, no loud sound is produced, but resonance can be reduced.

  The intermediate sound electromagnetic drive body 12 and the low sound electromagnetic drive body 11 are joined and positioned at positions opposite to each other with respect to the center of the soundboard 2 and / or the large soundboard 1. Therefore, it is possible to reduce the left-right bias for low and medium sounds.

  The large sound board 1, the middle sound board 2, the small sound board 3, the left speaker 7L, and the right speaker 7R are separated from each other. As a result, the sounding vibration of one soundboard or speaker may affect the sounding vibration of other soundboards or speakers, adversely affect the sound that is sounded, and alter / degrade the sound. Absent.

  In addition, one electromagnetic drive unit 11, 12, and 13 is attached to each of the large sound board 1, the middle sound board 2, and the small sound board 3. Further, the high tone cone 8 and the middle / low tone cone 9 are completely divided / separated. As a result, since a plurality of sounding vibrations are not simultaneously applied to one soundboard 1 to 3 or cone 8 to 9, it may adversely affect the sound that is sounded and alter / degrade the sound. Absent.

  The soundboards 1, 2, and 3 are arranged between the left speaker 7L and the right speaker 7R or on an extension therebetween. As a result, plane waves from the soundboards 1, 2, and 3 between the spherical waves from the speakers 7L and 7R (cylindrical surface waves extending in a substantially vertical direction in the case of a soundboard extending in a substantially vertical direction / longitudinal direction). Therefore, the change in the left and right acoustic energy caused by the change in the position of the listening ear can be compensated by the plane waves from the soundboards 1, 2, and 3.

(2) Structure of the electromagnetic drive units 11, 12 and 13 The external shapes of the electromagnetic drive units 11, 12 and 13 are provided on the cylindrical main body cases 16, 17 and 18 and the lower surfaces of the main body cases 16, 17 and 18. It consists of circular flat diaphragms 21, 22 and 23.

  The diaphragms 21, 22 and 23 and the main body cases 16, 17 and 18 are made of metal or hard resin, have a small amount of deflection, a small degree of deflection, a large stiffness, and are close to a rigid body. The electromagnetic drive units 11, 12 and 13 contain a coil and a magnet. The coil is connected to one of the main body cases 16, 17 and 18 and the diaphragms 21, 22 and 23, and the magnet is connected to the other. .

  When a musical sound signal comprising a plurality of types of musical sounds flows through the coil, the coil or magnet vibrates / drives / displaces due to the interaction between the magnetic field generated in the coil and the magnetic field of the magnet, and the main body cases 16, 17 and 18 are moved. The diaphragms 21, 22 and 23 vibrate / drive / displace.

  One of the main body cases 16, 17, and 18, that is, the coil and the magnet, is fixed to the instrument main body side such as the above-mentioned frame that is heavier than the soundboards 1, 2, and 3, and the diaphragms 21, 22, 23, that is, the other is fixed to the soundboard. 1, 2 and 3 are brought into contact (including joining / attaching / connecting / bonding / fixing) directly or via a cushioning material (not shown). This contact includes bonding with an adhesive, fixing with a nail, a bolt, a wood screw, or the like.

  Thereby, the diaphragms 21, 22, and 23 and the soundboards 1, 2, and 3 can be electromagnetically driven and vibrated with respect to the instrument body. Unlike the speaker, the electromagnetic drive units 11, 12 and 13 and the diaphragms 21, 22 and 23 do not sound / sound themselves, unlike the speaker, and thus other joined objects such as the above The soundboard 1, 2 or 3 is electromagnetically driven to vibrate and emit sound / sound. Such electromagnetic drive units 11 are disclosed in Japanese Patent Laid-Open Nos. 8-146949 and 8-111896.

  Both surfaces of the diaphragms 21, 22 and 23 and the soundboards 1, 2 and 3 are substantially flat and substantially parallel to each other, and the distance between them is also substantially uniform. As long as it is substantially parallel, it may be a plane, a spherical surface, a cylindrical surface, other curved surfaces, or a polyhedral surface.

  If parallel / thickness is uniform in this way, the characteristics of sound transmission / vibration transmission from the diaphragms 21, 22 and 23 to the soundboards 1, 2 and 3 become uniform. The sound quality that is emitted is not degraded. In some cases, the diaphragms 21, 22, and 23 and the soundboards 1, 2, and 3 may not be parallel.

  The diaphragms 21, 22 and 23 of the electromagnetic driver units 11, 12, and 13 are different from speaker cones or flat diaphragms and are supplied with a powerful signal to drive them because of their weight. The sound is transmitted to other objects such as the soundboard 1 to produce sound.

  Since the diaphragms 21, 22 and 23 of the electromagnetic driver units 11, 12 and 13 themselves do not radiate sound, the diaphragms 21, 22 and 23 of the electromagnetic driver units 11, 12 and 13 are used to emit sound. Therefore, it is only necessary to consider the sound generated from the soundboards 1, 2, and 3, and analysis / analysis of the sound generated from the entire musical sound device is facilitated. Note that sound may also be emitted from the diaphragms 21, 22 and 23 of the electromagnetic driver units 11, 12 and 13 themselves.

  Here, in order to emit sound, the air around the vibrating object must be vibrated. Therefore, the soundboards 1, 2, and 3 vibrate the surrounding air (sound vibration), but the diaphragms 21, 22, and 23 of the electromagnetic driver units 11, 12, and 13 do not vibrate the surrounding air (silence). Vibration), and only the soundboards 1, 2 and 3 are vibrated (sound vibration).

  Silent vibration occurs when the material / shape / weight cannot transmit vibration energy to the surrounding air, and sound vibration occurs when the material / shape / weight transmits vibration energy to the surrounding air. Become. Therefore, even if the same vibration is applied, the sound vibration is different from the vibration form of the silent vibration due to the air resistance.

(3) Driving circuits for the speakers 7L and 7R of the electromagnetic driving units 11, 12 and 13 FIG. 3 shows driving circuits for the speakers 7L and 7R of the electromagnetic driving units 11, 12 and 13. From the left terminal L and the right terminal R, musical tone signals composed of a plurality of types of musical sounds, and the musical tone signals of the left and right stereo channels for forming a sound image are input.

  A specific frequency component is cut or selected from the stereo right musical tone signal by the right filter 31, and an output amount (output magnitude / amplitude / volume / level) of the musical tone signal controlled in this frequency band is output by the right volume circuit 32. The same applies hereinafter), and is amplified by the right amplifier 33 and emitted from the right speaker 7R.

  A specific frequency component is cut or selected from the stereo left music signal by the left filter 36, and the output amount of the tone signal controlled in this frequency band is changed by the left volume circuit 37 and amplified by the left amplifier 38. Sound is emitted from the left speaker 7L.

  The left and right music signals of the stereo are additively combined, and the high frequency filter 41 cuts the frequency components of the middle frequency range and the low frequency range. The output amount is changed at 42, amplified by the high frequency amplifier 43, sent to the high frequency electromagnetic drive unit 13, the diaphragm 23 is vibrated, and the high frequency range musical sound is emitted from the small sound plate 3.

  The left and right music signals of the stereo are additively synthesized, and the frequency components of the high frequency range and the low frequency range are cut by the mid-range filter 46, and the mid-range range tone signal is controlled by the mid-range volume circuit. The output amount is changed at 47, amplified by the mid-range amplifier 48, sent to the mid-range electromagnetic drive unit 12, the diaphragm 22 is vibrated, and the mid-range tone is emitted from the mid-range 2. .

  The left and right music signals of the stereo are additively synthesized, and the low frequency filter 51 cuts the high frequency and middle frequency components, and the low frequency music signal whose frequency band is controlled is a low frequency volume circuit. The output amount is changed at 52, amplified by the low-frequency amplifier 53, sent to the low-frequency electromagnetic drive unit 11, and the diaphragm 21 is vibrated, so that the low-frequency range musical sound is emitted from the large sound board 1.

  From the above-mentioned musical instrument or the panel switch group 56 of the controller connected to this musical instrument, tone (tone number, etc.), effect (effect number, etc.), touch (velocity sensitivity, initial touch sensitivity, etc.), pitch (key scaling, tuning) Etc.) is input.

  Each input data is converted into five cut-off frequency data by the decoder 57 and stored in the register 58. The five right filters 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, the low-pass filter 46, Sent to the pass filter 51.

  Each of the inputted data is also converted into five volume balance data by the decoder 57 and stored in the register 59, and the five right volume circuit 32, left volume circuit 37, and high frequency volume circuit 42 are stored. Then, it is sent to the mid-range volume circuit 47 and the low-range volume circuit 52.

  As a result, the cutoff frequency of the musical tone signal is controlled by the musical factor for the musical tone signal that is manually input, such as tone, effect, touch, and pitch control data, and the soundboards 1, 2, 3 are controlled. The frequency band of the musical sound signal emitted from the speakers 7L and 7R is changed, switched and controlled.

  Also, the output amount of the tone signal (including output size / amplitude / volume / level) according to musical factors for the tone signal input manually, such as tone, effect, touch, pitch control data. Is controlled, and the output amount of the tone signal emitted from the soundboards 1, 2, 3, and speakers 7L, 7R is changed and switched to be controlled.

  The right filter 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, and the low-pass filter 51 are digital VCFs, analog VCFs, filters with programmable cutoff frequencies, and the like. The right volume circuit 32, the left volume circuit 37, the high-frequency volume circuit 42, the mid-frequency volume circuit 47, and the low-frequency volume circuit 52 are programmable in the amplitude or amplification degree of the digital VCA, analog VCA, and signal level signals. Volume controller / amplifier.

  Also, the musical factors of the left and right musical tone signals inputted from the left terminal L and the right terminal R, such as tone (tone number, etc.), effect (effect number, etc.), touch (velocity, touch, etc.), pitch ( Key number, key scaling, tuning, etc.) are sent from an assignment memory (not shown), a register (not shown) for storing data for controlling musical sounds, a MIDI (MIDI) circuit, etc. through another connection line. And converted by the decoder 57 and stored in the register 58, the five right filters 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, the low-pass filter 51, and the five right volumes. Circuit 32, left volume circuit 37, high frequency volume circuit 42, middle frequency circuit 47, low frequency volume It is fed to the road 52.

  As a result, the cut-off frequency of the musical tone signal is controlled by the musical data of the musical tone signal that is generated and sent in, for example, tone color, effect, touch, and pitch control data, and the soundboard 1, 2, 3 is controlled. The frequency band of the musical sound signal emitted from the speakers 7L and 7R is changed and switched and controlled, and the output amount of the musical sound signal (including output magnitude / amplitude / volume / level) is controlled. The output amount of the tone signal emitted from the soundboards 1, 2, 3 and the speakers 7L, 7R is changed, switched and controlled.

  In a register (not shown) for storing data for controlling the above-mentioned tone, musical factors of the tone signal generated, for example, tone (tone number, etc.), effect (effect number, etc.), touch (velocity, touch, etc.) , Pitch (key number, key scaling, tuning, etc.) is stored.

  In the above assignment memory (not shown), musical factors of tone signals assigned to each channel by polyphonic time-division processing, such as tone (tone number etc.), effect (effect number etc.), touch ( Velocity, touch, etc.) and pitch (key number, key scaling, tuning, etc.) are stored.

  The MIDI circuit is connected to a MIDI-type musical factor such as tone (tone number, etc.), effect (effect number, etc.), touch (velocity, touch, etc.), pitch (key number, key scaling). , Tuning etc.) is sent and stored.

(4) Cutoff frequency and volume balance data according to musical factors (tone, effect, touch, pitch, etc.) FIG. 4 shows the musical factors stored in the decoder 57, such as timbre, effects, The cut-off frequency and volume balance data corresponding to the touch and pitch are shown.

  When the tone (tone number) is set to grand piano and the effect (effect number) is set to delay, the right volume circuit 32, the left volume circuit 37, the high-frequency volume circuit 42, the mid-frequency volume circuit 47, and the low-frequency volume circuit. The volume balance data sent to 52 is “0” “0” “100” “100” “127”, respectively.

  As a result, when the tone is a grand piano and the effect is a delay, each output amount of the tone signal is not emitted from the left speaker 7L and the right speaker 7R but from only the soundboards 1, 2, and 3. Is changed, switched and controlled. In addition, the musical sound from the soundboards 1, 2, and 3 is changed, switched and controlled so that the bass is relatively emphasized.

  When the tone (tone number) is set to grand piano and the effect (effect number) is set to delay, the sound is sent to the right filter 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, and the low-pass filter 51. The cut-off frequency data to be set are “none”, “none”, “1000 Hz (high pass)”, “1000 Hz (high pass)”, and “1000 Hz (low pass)”, respectively.

  As a result, when the tone color is a grand piano and the effect is a delay, the left speaker 7L and the right speaker 7R do not emit sound, and the loud sound board 1 outputs frequency components in the low and middle frequencies below 1000 Hz. It is changed, switched and controlled, and is changed, switched and controlled so that a high frequency range frequency component of 1000 Hz or more is output from the sound board 2 and the small sound board 3. Therefore, the delay effect of the grand piano does not control sound image formation / sound image change.

  When the tone (tone number) is set to electric piano and the effect (effect number) is set to auto pan, the right volume circuit 32, left volume circuit 37, high range volume circuit 42, mid range volume circuit 47, low range volume are set. The volume balance data sent to the circuit 52 is “127” “127” “0” “0” “100”, respectively.

  As a result, when the tone is an electric piano and the effect is auto pan, the tone signal is not emitted from the soundboards 2 and 3 but from the left speaker 7L and the right speaker 7R and from the large soundboard 1. Each output amount is changed, switched and controlled. Therefore, a sound image can be formed, and the position of the sound image can be changed by controlling the volume / phase of the left and right music signals.

  When the tone (tone number) is set to electric piano and the effect (effect number) is set to auto pan, the right filter 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, and the low-pass filter 51 are set. The cut-off frequency data to be sent is “500 Hz (high pass)”, “500 Hz (high pass)”, “none”, “none”, and “500 Hz (low pass)”, respectively.

  As a result, when the tone is an electric piano and the effect is auto pan, the sound is not emitted from the soundboard 2 and the small soundboard 3, and the frequencies of the high and middle frequencies of 500 Hz or more are output from the left speaker 7L and the right speaker 7R. It is changed, switched and controlled so that the component is output, and is changed, switched and controlled so that the frequency component in the low frequency range of 500 Hz or less is output from the large sound board 1.

  Therefore, sound image formation / sound image change control is performed for medium and high sounds of 500 Hz or more, and sound image formation / sound image change control is not performed for low sounds of 500 Hz or less. This is because, for low sounds, the effect of auto panning can be achieved without controlling sound image formation / sound image change. Needless to say, low sound of 500 Hz or less may be output from the left speaker 7L and the right speaker 7R to control sound image formation / sound image change.

  When the tone (tone number) is set to the drawbar organ and the effect (effect number) is set to the rotary, the right volume circuit 32, the left volume circuit 37, the high frequency volume circuit 42, the mid frequency volume circuit 47, and the low frequency volume circuit. The volume balance data sent to 52 is “127”, “127”, “0”, “0”, “100”, respectively.

  Thus, when the timbre is the drawbar organ and the effect is rotary, the sound is not emitted from the soundboard 2 and the small soundboard 3, but is emitted from the left speaker 7L and the right speaker 7R and from the large soundboard 1. Each output amount of the musical tone signal is changed, switched and controlled. Therefore, a sound image can be formed, and the position of the sound image can be changed by controlling the volume / phase of the left and right music signals.

  When the tone (tone number) is set to the drawbar organ and the effect (effect number) is set to the rotary, the sound is sent to the right filter 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, and the low-pass filter 51. The cut-off frequency data to be generated are “500 Hz (high pass)”, “500 Hz (high pass)”, “none”, “none”, and “500 Hz (low pass)”, respectively.

  As a result, when the timbre is the drawbar organ and the effect is rotary, the sound is not emitted from the soundboard 2 and the small soundboard 3, but the left speaker 7L and the right speaker 7R are high frequency and middle frequency components of 500 Hz or higher. Is switched and controlled to be output, and is changed, switched and controlled so that a low frequency component of 500 Hz or less is output from the large sound board 1.

  Therefore, sound image formation / sound image change control is performed for medium and high sounds of 500 Hz or more, and sound image formation / sound image change control is not performed for low sounds of 500 Hz or less. This is because a low-frequency sound can be produced without the control of sound image formation / sound image change. Needless to say, low sound of 500 Hz or less may be output from the left speaker 7L and the right speaker 7R to control sound image formation / sound image change.

  When the timbre (tone number) is set to strings and the effect (effect number) is set to delay, the right volume circuit 32, left volume circuit 37, high-frequency volume circuit 42, mid-range volume circuit 47, low-frequency range The volume balance data sent to the volume circuit 52 is all “80” “80” “80” “80” “80”.

  As a result, when the timbre is strings and the effect is delay, the left speaker 7L, the right speaker 7R, the large soundboard 1, the soundboard 2, and the small soundboard 3 are all emitted at the same volume. Each output amount of the tone signal is changed and switched to be controlled. Therefore, a sound image can be formed, and the position of the sound image can be changed by controlling the volume / phase of the left and right musical sound signals, and a musical sound without a sound image is emitted from the entire soundboards 1 to 3. Is done.

  When the tone (tone number) is set to strings and the effect (effect number) is set to delay, the right filter 31, the left filter 36, the high-pass filter 41, the mid-pass filter 46, and the low-pass filter 51 are set. The cut-off frequency data sent to is “500 Hz (high pass)”, “500 Hz (high pass)”, “1000 Hz (high pass)”, “1000 Hz (high pass)”, and “1000 Hz (low pass)”.

  As a result, when the timbre is strings and the effect is delay, the left speaker 7L and the right speaker 7R are changed, switched, and controlled so that the frequency components of the high frequency range and the middle frequency range of 500 Hz or more are output. The sound board 2 and the small sound board 3 are changed, switched and controlled so that a high frequency component of 1000 Hz or higher is output, and a low frequency component of 1000 Hz or lower is output from the large sound board 1. Changed, switched and controlled.

  Therefore, sound image formation / sound image change control is performed for medium and high sounds of 500 Hz or higher, and sound image formation / sound image change control is not performed for low sounds of 500 Hz or less. Is emitted. This is because the effect of the delay can be obtained for the low sound without controlling the sound image formation / sound image change. Needless to say, low sound of 500 Hz or less may be output from the left speaker 7L and the right speaker 7R to control sound image formation / sound image change.

  When the tone (tone number) is set to guitar / bass and the effect (effect number) is set to overdrive / chorus, the right volume circuit 32, the left volume circuit 37, the high frequency volume circuit 42, the mid frequency volume circuit 47, The volume balance data sent to the low-frequency volume circuit 52 is “0” “0” “100” “100” “127”, respectively.

  As a result, when the tone is guitar / bass and the effect is overdrive / chorus, the tone signal is not emitted from the left speaker 7L and the right speaker 7R but only from the soundboards 1, 2, and 3. Each output amount is changed, switched and controlled. In addition, the musical sound from the soundboards 1, 2, and 3 is changed, switched and controlled so that the bass is relatively emphasized.

  When the tone (tone number) is set to guitar / bass and the effect (effect number) is set to overdrive / chorus, the right filter 31, left filter 36, high-pass filter 41, mid-pass filter 46, low-pass filter The cut-off frequency data sent to the filter 51 is “None”, “None”, “1000 Hz (high pass)”, “1000 Hz (high pass)”, and “1000 Hz (low pass)”, respectively.

  As a result, when the tone is guitar / bass and the effect is overdrive / chorus, no sound is emitted from the left speaker 7L and the right speaker 7R, and the frequency components of the low and middle frequencies below 1000 Hz are output from the soundboard 1. Is changed, switched, and controlled, and is changed, switched, and controlled so that a high frequency component of 1000 Hz or more is output from the sound board 2 and the small sound board 3. Therefore, the guitar / bass overdrive / chorus effect does not control the sound image formation / sound image change.

  The above changes / switches / controls apply to touch (velocity, touch, etc.) and pitch (key number, key scaling, tuning, etc.) data, as well as tones (tone numbers, etc.) and effects (effect numbers, etc.). Based on this, it is possible to set various numerical values like the above-described cutoff frequency and volume balance data, and the same is executed.

  In this way, the frequency band and output amount of the tone signal sent to the electromagnetic drive units 11, 12, 13 and the soundboards 1, 2, 3 are changed, switched and controlled. Moreover, the change of the frequency band of the tone signal sent to the electromagnetic drive units 11, 12, 13 and the soundboards 1, 2, 3 and the switching of the output amount are linked. In addition, this interlocking depends on touch (velocity, touch, etc.) and pitch (key number, key scaling, tuning, etc.), in addition to the tone (tone number, etc.) and effects (effect number, etc.).

  Therefore, the frequency band of the musical tone signal to be output can be changed and output not only according to the timbre, but also according to multiple musical elements of the timbre, effect, touch, and pitch, not just the effect. Since the ability is switched in conjunction with each other, the selection of the optimum frequency band and the selection of the output amount are selected “simultaneously” for the “plural” musical elements selected / set.

  The volume balance data is not only for changing the output volume, but the output amount may be selected / set to “0”, so that the electromagnetic drive units 11, 12, 13, and the soundboards 1, 2, 3 are used. This includes switching the output itself, whether or not to output the tone signal.

(5) Second Embodiment FIGS. 5 and 6 show a second embodiment. In the second embodiment, as the tone signal, in addition to the stereo right channel R and left channel L, a monaural channel MONO obtained by synthesizing these is also generated.

  The right channel tone signal R is sent to the right filter 31 via the changeover switch 61, the left channel tone signal L is sent to the left filter 36 via the changeover switch 62, and the monaural channel tone signal MONO is switched. The signals are sent to the high-pass filter 41, the mid-pass filter 46 and the low-pass filter 51 through the switches 63, 64 and 65.

  The left and right monaural tone signals R, L, and MONO (tone number, etc.), effects (effect number, etc.), touch (velocity, touch, etc.), pitch (key number, key scaling, tuning, etc.) are connected separately. It is sent from an assignment memory (not shown), a register (not shown) for storing data for controlling musical tone, a MIDI circuit, etc. through a line, converted by the decoder 57, and converted to the register 58. 59, and also stored in the register 66 and sent to the five change-over switches 1, 62, 63, 64, 65. As a result, the tone signal output is switched on / off by the tone color, effect, touch, and pitch control data of the tone signal generated and sent.

  FIG. 6 shows an output for switching the output of the musical tone signal to the speakers 7R, 7L and the electromagnetic drive units 11, 12, 13 in accordance with the tone, effect, touch, and pitch stored in the decoder 57. Indicates switching data.

  When the tone (tone number) is set to grand piano and the effect (effect number) is set to delay, the left and right musical tone signals R and L are turned off, and the monaural musical tone signal MONO is turned on for both high, middle, and bass. . As a result, when the tone is a grand piano and the effect is a delay, the sound is not emitted from the left speaker 7L and the right speaker 7R and no sound image is formed, and the musical sound is emitted only from the soundboards 1, 2, and 3. The signal output is switched and controlled.

  If the above tone (tone number) is set to electric piano, the effect (effect number) is set to auto pan, or the tone (tone number) is set to drawbar organ and the effect (effect number) is set to rotary, the left and right musical tone signals R, L is turned on, and the monaural tone signal MONO is turned on for all of the high, middle, and low sounds. Thus, when the tone is an electric piano or drawbar organ and the effect is auto pan or rotary, the sound is emitted from all of the left speaker 7L, the right speaker 7R, the soundboards 1, 2, and 3, and a sound image is formed. The tone signal output is switched and controlled.

  When the above tone (tone number) is set to strings and the effect (effect number) is set to delay, the left and right musical tone signals R and L are on, and the monaural musical tone signal MONO is off for all high, medium, and low tone sounds. Is done. As a result, when the timbre is strings and the effect is delay, sound signals are output only from the left speaker 7L and the right speaker 7R to form a sound image and are not emitted from the soundboards 1, 2, and 3. Is switched and controlled.

  When the above tone (tone number) is set to guitar / bass and the effect (effect number) is set to overdrive / chorus, the left and right musical tone signals R and L are off, and the monaural musical tone signal MONO is both high, medium, and low. Turned on. As a result, when the tone is guitar / bass and the effect is overdrive / chorus, the tone signal is not emitted from the left speaker 7L and the right speaker 7R but only from the soundboards 1, 2, and 3. Output is switched and controlled.

  Switching / control as described above is based on touch (velocity, touch, etc.) and pitch (key number, key scaling, tuning, etc.) data, as well as timbre (tone number, etc.) and effects (effect number, etc.). However, it is possible to set various numerical values as in the above-described cutoff frequency and volume balance data, and the same is executed.

  In this way, the output of the tone signal sent to the electromagnetic drive units 11, 12, 13 and the soundboards 1, 2, 3 is switched and controlled, and the sound image formation is switched and controlled. Moreover, the switching of the output of the tone signal sent to the electromagnetic drive units 11, 12, 13 and the soundboards 1, 2, 3 is linked to the change of the frequency band and the switching of the output amount shown in FIG. In addition, this interlocking depends on touch (velocity, touch, etc.) and pitch (key number, key scaling, tuning, etc.), in addition to the tone (tone number, etc.) and effects (effect number, etc.).

  Therefore, not only the timbre, but also the effects, not only the effects, but also the switching of the output of the musical sound signal and the formation of the sound image according to a plurality of musical elements of the timbre, the effect, the touch, and the pitch. Since the presence / absence, frequency band change and output amount switching are performed in conjunction with each other, the optimum output selection / output selection, frequency band selection and output amount selection for the selected / multiple musical elements Selection is selected “simultaneously”.

  In this case, such interlocking is not performed, and each control may be executed independently. In addition, in FIG. 6 and the like, even if each output is switched by only the set tone, only the effect, only the touch (velocity, touch, etc.), and only the pitch (key number, key scaling, tuning, etc.). good.

  Further, in FIG. 5, the monaural tone signal MONO may be switched by only one changeover switch, and the output of this changeover switch may be input to each of the filters 41, 46, 51. In addition, such change-over switches 61, 62, 63, 64, 65 may be switched by manual operation instead of musical factors such as the above-described timbre. Other configurations, operations, and actions are the same as those in the above-described embodiment, and a description thereof will be omitted.

(6) Other Embodiments The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the musical factors include tone (tone number, etc.), effect, touch (velocity, touch, etc.), pitch (key number, key scaling, tuning, frequency number, etc.), melody, accompaniment, bass or keyboard It may be a performance part such as a musical instrument, a stringed instrument, a wind instrument, a percussion instrument, a sound generation elapsed time (sound length) that is an elapsed time from the start of key-on or sound generation, an envelope level, an envelope phase, a volume level, a tempo, and a harmonic component.

  Even in such a case, such musical factors of the musical tone signal to be output are sent from the assignment memory and various registers for storing the musical factor, and the output switching and the sound image of the musical tone signal to be output are performed. Presence / absence of formation, change of frequency band and switching of output amount are performed in conjunction.

  In addition, among the circuits of FIG. 3, the small sound board 3, the mid sound board 2, the high frequency filter 41, the mid frequency filter 46, the high frequency volume circuit 42, the mid frequency volume circuit 47, the high frequency amplifier 43, and the mid frequency amplifier. 48, the medium sound electromagnetic drive unit 12, and the high sound electromagnetic drive unit 13 may be omitted. In this case, the soundboard is only the large soundboard 1, but the above-described change of the frequency band of the output musical sound signal and the switching of the output amount can be linked.

  Further, in addition to or individually, the low-pass filter 51, the low-frequency volume circuit 52, the low-frequency amplifier 53, and the low-frequency electromagnetic drive unit 11 may be omitted, or in addition to or individually. The soundboard 2, the midrange filter 46, the midrange volume circuit 47, the midrange amplifier 48, and the midtone electromagnetic drive unit 12 may be omitted, or in addition to or individually, The filter 41, the high frequency volume circuit 42, the high frequency amplifier 43, and the high frequency electromagnetic drive unit 13 may be omitted.

  Further, the frequency band into which the musical sound signal is divided may be two of high sound and low sound, and according to this, the soundboard 2, the mid-frequency filter 46, the mid-range volume circuit 47, the mid-range amplifier 48, the mid-range electromagnetic wave The drive unit 12 or the like may be omitted, or may be divided into four or more frequency bands, and a filter, a volume circuit, an amplifier, an electromagnetic drive unit, a soundboard, and the like may be further provided according to this. .

  Further, the large sound board 1, the middle sound board 2, and the small sound board 3 may be divided into two on the left and right. In this case, an electromagnetic drive unit is provided in each of the large sound board 1, the middle sound board 2, and the small sound board 3 divided into left and right, and musical sound signals of stereo channels forming a sound image are sent. As a result, a sound image is also formed by the radiated sound from the horizontal soundboard 1, the middle soundboard 2, and the small soundboard 3 extending in a substantially horizontal / substantially horizontal direction. In this case, the large soundboard 1, the middle soundboard 2, and the small soundboard 3 divided into the left and right may have a shape extending vertically in a substantially vertical direction / almost vertically.

  The musical instrument to which the device of the present invention is attached may be a grand piano in addition to an upright piano. In this case, the soundboards 1, 2, and 3 are arranged in a substantially horizontal / substantially horizontal direction instead of a substantially vertical / substantially vertical direction, so that the electromagnetic drive units 11, 12, and 13 are also substantially in a horizontal / horizontal direction. It is attached.

  Further, the electromagnetic drive units 11, 12, and 13 may be attached not to the ends of the soundboards 1, 2, and 3, but to the center or the center. A plurality of electromagnetic drive units 11, 12, 13 may be attached to one soundboard 1, 2, 3. In this case, the electromagnetic drive units 11, 12, and 13 are attached to symmetrical positions at both ends of the soundboards 1, 2, and 3.

  When the volume balance data in FIG. 4 is “0”, an on / off switch may be provided on the output side of each circuit 41 to 53 in FIG. 3, and this switch may be turned off. As a result, the output of the tone signal to the electromagnetic drive units 11, 12, 13 and the speakers 7L, 7R is switched.

  Further, the musical tone signal composed of plural types of musical sounds is composed of plural types of musical instruments, timbres, tone pitches and / or touch musical tone signals, and is a musical tone signal that is polyphonically generated. Contains musical sounds in each frequency band, treble. Such musical tone signals include the musical tone signal of the instrument string itself, the pipe itself, and the percussion part, as well as the musical tone signal of the soundboard part. Or only the sound signal of the soundboard part.

  The musical tone signal composed of a plurality of types of musical sounds may be a digital signal such as PCM, and includes a high-pass filter 41, a mid-pass filter 46, a low-pass filter 51, a high-pass volume circuit 42, a mid-pass volume circuit 47, a low-pass volume. The circuit 52, the high frequency amplifier 43, the mid frequency amplifier 48, and the low frequency amplifier 53 may be digital circuits that process digital signals.

  Further, the speakers 7L and 7R may be of a dome type, a flat type, or a ribbon type in addition to the cone type, and the driving method may be a dynamic type, a magnetic type, a capacitor type, a piezo electric type, or the like.

(7) Effects of other inventions
[2] The frequency band of the musical sound signal sent to the electromagnetic driving body or the sounding body is changed, the switching of the output amount of the musical sound signal to the electromagnetic driving body and the sounding body, the change of the frequency band, 2. The musical tone apparatus according to claim 1, wherein the linkage between the change of the frequency band of the musical tone signal and the switching of the output amount corresponds to the change of the musical factor of the musical tone signal.

  Here, according to the multiple musical factors of musical factors (tone, effect, touch, pitch, etc.), the change of the frequency band of the output musical sound signal and the switching of the output amount are performed in conjunction, The selection of the optimum frequency band and the output amount for the selected / set “plurality” of musical elements are selected “simultaneously”.

  Moreover, a plane wave is emitted from the soundboard, a spherical wave / cylindrical wave is emitted from the sound generator, a plane wave is emitted from the soundboard, a spherical wave / cylindrical wave is emitted from the sound generator, and musical factors (tone, effect, touch, pitch, etc.) Depending on the musical element of the plural (sometimes), the output amount of the musical sound signal output from the soundboard and the sounding body is switched (and the frequency band is changed in some cases), so that the musical factor ( Depending on the musical elements (tone, effect, touch, pitch, etc.), the plane wave or spherical wave can be switched, or the mixing ratio of the plane wave and spherical wave can be changed. Furthermore, the frequency component of these plane waves and the frequency component of spherical waves are changed, and the mixing ratio of these frequency components is changed.

[3] The sound generator has a built-in converter for converting a musical sound signal into sound, and the sound board and the sound generator are separated, and one sound board or sound generator has one electromagnetic wave. 3. The musical sound device according to claim 1, wherein a driving body or a conversion body is attached.

  As a result, the sounding vibration of one soundboard or sounding body affects the sounding vibration of another sounding board or sounding body, adversely affects the sound that is sounded, and changes or deteriorates the sound. There is nothing. In addition, since a plurality of sounding vibrations are not simultaneously applied to one soundboard or converter, the sound that is sounded is not adversely affected and the sound is not altered / deteriorated.

[4] The soundboard includes a plurality of soundboards, each of the soundboards extending in a substantially horizontal direction, and the soundboards are arranged side by side in a substantially vertical direction. Has a plurality of converters for converting a musical sound signal into sound, the plurality of converters are arranged in a substantially vertical direction, and the soundboard is arranged between the sounding bodies. The musical sound device according to claim 1, 2, or 3.

  As a result, the sound generators (high, medium, and low) from each soundboard are arranged vertically, and since these sounds are plane waves, the sound from each soundboard (high, medium, and low) Even if the position of the ear is shifted left and right or up and down, it is difficult to feel the difference in sound pressure between the left and right ears, and the position of the sound image does not shift depending on the position of the ear, so there is no sense of incongruity in hearing. In addition, the change in the stereo acoustic energy due to the change in the position of the listening ear can be compensated and mitigated by the plane wave from the soundboard.

[5] The switching means switches the output of the musical sound signal itself to the electromagnetic driving body and the sounding body, or switches the output volume of the musical sound signal to the electromagnetic driving body and the sounding body. 5. The musical sound device according to claim 1, 2, 3 or 4. As a result, the output volume of the musical sound signal can be increased or decreased, and the output itself can be switched.

[6] A plurality of different soundboards are provided, and each soundboard divides the musical sound signal into at least two of a bass component, a middle tone component, and a treble component. 6. The musical sound device according to claim 1, 2, 3, 4, or 5 being emitted. This simplifies the structure of the soundboard.

7. The musical tone apparatus according to claim 1, wherein the plurality of sound generators according to the number of stereo channels are speakers, tweeters or soundboards of musical instruments. Thereby, a sound image can be formed by a speaker, a tweeter or a soundboard of a musical instrument.

[8] The musical sound device according to [1], [2], [3], [7], or [7], wherein the soundboard is a soundboard of an electronic keyboard instrument or an acoustic piano. As a result, not only an electric musical tone signal can be emitted from the soundboard, but also an acoustic musical instrument musical tone can be emitted.

[9] The musical instrument is a keyboard musical instrument, and the musical tone signal includes a musical tone signal of a soundboard in addition to a string itself, a pipe itself, and a percussion part of the musical instrument. The musical sound device according to 3, 4, 5, 6, 7 or 8. Thereby, the sound of the soundboard itself can be heard on the soundboard, and the sound of the soundboard can be made natural.

[10] There are a plurality of soundboards, the plurality of soundboards are flat or curved, and have the same thickness or different thicknesses, and there are a plurality of the electromagnetic driving bodies. 10. The musical sound device according to claim 1, wherein the body is joined at a position shifted from the center of each soundboard. Thereby, each sound board becomes difficult to resonate.

[11] A sound board of a musical instrument that oscillates and emits sound, and an electromagnetic driver that converts a musical sound signal composed of a plurality of types of musical sound into a mechanical change and drives the sound board of the musical instrument to emit sound. Depending on the number of stereo channels, the musical sound signal composed of the above-mentioned multiple types of musical sounds is converted into sound and emitted, and the musical sound signal is emitted as each musical sound signal of each stereo channel for forming a sound image. Based on the musical factors (tone, effect, touch, pitch, etc.) of the musical tone signal composed of a plurality of types of musical sounds, the musical sound to the electromagnetic driving body and the musical sound generator A musical sound control method characterized by switching a signal output amount.

  Based on the timbre, effect, etc., the output amount to the soundboard and the output amount to the sounding body are switched, and the characteristics such as the timbre, the effect, etc. are fully exhibited. Tone (tone number) and effect data are converted into cut-off frequency data by the decoder 57 and sent to the five right filters 31, left filter 36, high-pass filter 41, mid-pass filter 46, and low-pass filter 51. The frequency band of the musical sound signal emitted from the soundboards 1, 2, 3 and the speakers 7L, 7R is switched.

  The data is also converted into volume balance data by the decoder 57, and sent to the five right volume circuits 32, left volume circuit 37, high frequency volume circuit 42, middle frequency volume circuit 47, and low frequency volume circuit 52. 2, 3 and the output amount of the musical sound signal emitted from the speakers 7L and 7R is switched.

The structure which looked at the large sound board 1, the middle sound board 2, and the small sound board 3 from the front is shown. The structure which looked at the large sound board 1, the mid sound board 2, and the small sound board 3 from the side is shown. The drive circuit of the speakers 7L and 7R of the electromagnetic drive units 11, 12, and 13 is shown. The cutoff frequency and volume balance data corresponding to musical factors (tone color, effect, touch, pitch, etc.) stored in the decoder 57 are shown. The drive circuit of the speakers 7L and 7R of the electromagnetic drive units 11, 12 and 13 of the second embodiment is shown. The switching data of each signal according to musical factors (timbre, effect, touch, pitch, etc.) stored in the decoder 57 of the second embodiment are shown.

Explanation of symbols

1 ... large sound board, 2 ... medium sound board, 3 ... small sound board, 5 ... frame board, 6 ... shelf,
7L ... Left speaker (sounding body), 7R ... Right speaker (sounding body),
8 ... high tone cone (converter), 9 ... medium bass cone (converter),
11 ... low frequency electromagnetic drive unit (electromagnetic drive unit),
12 ... Middle sound electromagnetic drive unit (electromagnetic drive unit),
13. High-frequency electromagnetic drive unit (electromagnetic drive unit),
16, 17, 18 ... main body case, 21, 22, 23 ... diaphragm,
31 ... right filter, 32 ... right volume circuit (switching means),
33 ... Right amplifier, 36 ... Left filter,
37 ... Left volume circuit (switching means), 38 ... Left amplifier,
41 ... high-pass filter, 42 ... high-frequency volume circuit (switching means),
43 ... High frequency amplifier, 46 ... Mid range filter,
47: Mid-range volume circuit (switching means), 48: Mid-range amplifier,
51 ... Low-pass filter, 52 ... Low-pass volume circuit (switching means),
53 ... Low frequency amplifier, 56 ... Panel switch group (switching means),
57: Decoder (switching means), 58, 59, 66 ... Register,
61, 62, 63, 64, 65... Selector switch.

Claims (5)

An instrument soundboard that oscillates and emits sound,
An electromagnetic driving body that converts a musical sound signal composed of multiple types of musical sounds into a mechanical change, and drives the soundboard of the musical instrument to emit sound;
According to the number of stereo channels, the musical sound signal consisting of the above-mentioned multiple types of musical sounds is converted into sound and emitted, and the musical sound signal is emitted as a musical sound signal for each stereo channel for forming a sound image. With a number of pronunciation bodies,
A musical sound device comprising: switching means for switching an output amount of the musical sound signal to the electromagnetic driving body and the sounding body based on a musical factor of the musical sound signal composed of the plurality of types of musical sounds. The frequency band of the musical sound signal sent to the electromagnetic driver or the sound generator is changed,
The switching of the output amount of the musical sound signal to the electromagnetic driving body and the sounding body is linked with the change of the frequency band,
2. The musical tone apparatus according to claim 1, wherein the linkage between the change of the frequency band of the musical tone signal and the switching of the output amount is in accordance with the change of the musical factor of the musical tone signal. In the above sound generator, there is a built-in converter that converts the musical sound signal into sound,
3. The musical sound device according to claim 1, wherein the soundboard and the sounding body are separated, and one electromagnetic driver or converter is attached to one soundboard or sounding body. There are a plurality of soundboards, each of the plurality of soundboards extends in a substantially horizontal direction, and the plurality of soundboards are arranged side by side in a substantially vertical direction,
The sounding body includes a plurality of conversion bodies for converting musical sound signals into sound, and the plurality of conversion bodies are arranged side by side in a substantially vertical direction.
4. The musical sound device according to claim 1, wherein the soundboard is disposed between the sounding bodies. A sound board of a musical instrument that emits sound by vibration, an electromagnetic drive that converts a musical sound signal composed of a plurality of types of musical sounds into a mechanical change, and drives the sound board of the musical instrument to emit sound, and the plurality A tone signal composed of various types of tone is converted into sound and emitted, and the tone signal is emitted as a tone signal for each stereo channel to form a sound image. With the pronunciation body,
A musical sound control method, wherein the output amount of the musical sound signal to the electromagnetic driving body and the sounding body is switched based on a musical factor of the musical sound signal composed of the plurality of types of musical sounds.

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