JP2009229680A - Sound generation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound generation system based on a new input system. <P>SOLUTION: A recording part 1 recording sound source inherent information for identifying an inherent sound source is disposed on an object. When a detector 2 is brought close to the recording part 1 by user's playing operation, the sound source inherent information recorded in the recording part 1 is read by the detector 2. A processing part 4 generates a sound generation designation for designating the generation of sound corresponding to the inherent sound source according to the sound source inherent D information read by the detector 2. A sound source device 5 electrically or electronically generates an acoustic signal of sound corresponding to the inherent sound source based on the generated sound generation designation. Further, the system includes a sounding body 6, which is physically vibrated to generate acoustic sound when external force is applied thereto, thereby generating acoustic sound as well. When the recording part 1 is disposed on the sounding body 6 and the sounding body 6 is vibrated by the detector according to user's operation, the sound source inherent information of the recording part 1 is read by the detector 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sound generation system based on a novel input method, and is suitable for application as a new type of electronic musical instrument.

In a natural musical instrument, an external force corresponding to a performance operation is applied to a physical sounding body (physical sound source) such as a string to physically vibrate the sounding body to generate a sound. On the other hand, an electronic musical instrument has an input device having a form similar to that of a performance operating means in a natural musical instrument, such as a keyboard, as a device for performing performance operation input, and an electronic sound source ( A musical tone signal is generated by a musical tone generator (for example, Patent Documents 1 and 2). The input device typically includes a key switch associated with each scale sound (note), and uses an electronic sound source (key sound corresponding to the key switch that is turned on as a scale sound (note) generation instruction signal). Input to the musical sound generator.
Japanese Patent No. 2600455 Patent No. 3900089

  The key switch in the input device is typically configured to detect on / off in conjunction with the operation of the operation means (simulating it) having the same form as the performance operation means in a natural musical instrument. Yes. Therefore, the conventional electronic musical instrument input device has a structural restriction that it is necessary to incorporate a combination of operating means (keys, simulated strings, etc.) operated manually and a corresponding key switch. Such structural limitations of the input device limit the form of the electronic musical instrument, and it has not been possible to produce a musical instrument having a form based on a free idea.

  On the other hand, the existence of a barcode score formed by recording a score for automatic performance in the form of a barcode is known. In such an embodiment of the bar code score, before the start of performance, the bar code reader collectively reads the compressed recording data of one piece of music from the bar code score, interprets (decompresses) this, and performs the performance sequence data. After being converted to, it is transferred and stored in a memory in the electronic musical instrument, and then automatic performance is started, and performance sequence data is sequentially read from the memory to perform automatic performance. Such a conventional bar code score is merely a score, and cannot be said to be an instrument that the user can perform in real time.

  The present invention has been made in view of the above points, and aims to provide a sound generation system based on a novel input method.

  A sound generation system according to the present invention includes a recording unit that records sound source specific information for identifying a specific sound source, and a detector that is operated by a user to approach the recording unit, the approach to the recording unit In response to the sound source specific information recorded in the recording unit, and a sound instructing generation of a sound corresponding to the specific sound source according to the sound source specific information read by the detector Processing means for generating a generation instruction.

  According to the present invention, the sound source specific information recorded in the recording unit is read in response to the operation of the detector approaching the recording unit by the user, and the read sound source specific information is identified. A sound generation instruction is generated that instructs generation of a sound corresponding to the unique sound source. The sound generation instruction generated in this way is transmitted to a sound source device that generates an acoustic sound electrically or electronically, so that an acoustic sound corresponding to the specific sound source can be generated from the sound source device. In the present invention, “approach” includes not only proximity but also contact and contact.

  That is, the sound generation system according to the present invention further includes a sound source device that electrically or electronically generates a sound signal of a sound corresponding to the specific sound source based on the sound generation instruction generated by the processing means. Prepare. This sound source device may be built in the main body having the recording unit, or may be separated from the main body having the recording unit. In this case, if the specific sound source identified by the sound source specific information is a physical vibrator or an acoustic sound source, the acoustic sound corresponding to the specific sound source generated from the electronic or electrical sound source device is: This simulates the sound actually emitted by the unique sound source.

  Note that the sound generation instruction generated based on the real-time performance operation by the user (the operation for approaching the recording unit of the detector) does not necessarily need to be transmitted to the sound source device in real time, and is stored in the storage device as performance data. The performance data (sound generation instruction) may be sequentially read out from the storage device and then transmitted to the sound source device in non-real time.

  Note that one sound source specific information does not necessarily correspond to only one specific sound or scale sound (note), but may correspond to a certain range or a group consisting of a plurality of sounds, or a sound effect or You may respond | correspond to the sound from which a pitch fluctuates temporally like a call. The one sound source specific information may be anything that identifies one specific sound source, and the information has meaning so that it depends on the pitch or range or sound generation mode of the specific sound source. Can do. For example, if one unique sound source is a guitar string, it has an identity as one string (sound source), and can be associated with an arbitrary pitch (note) according to the fret position pressed by the performer. On the other hand, if one unique sound source is a harp string, having an identity as one string (sound source) is associated with only one specific pitch (note).

  Further, the unique sound source identified by the sound source unique information is not limited to a conventional instrument as long as it can be a sound source, and may be anything. For example, it may be a vocal cord or a vocal organ of a person, an animal or the like. That is, the sound is not limited to a scale sound (note) but may be a sound effect or any kind of specific sound (for example, a cat cry) or the like, and is a sound based on some sound source uniquely specified by sound source specific information. . As a typical example, sound source specific information for identifying each of a plurality of specific sound sources is recorded in the recording unit. In that case, a separate recording unit may be provided for each sound source, or sound source specific information may be recorded at different locations (positions) in the common recording unit. Note that the sound generation system of the present invention does not necessarily have to include the unique sound source itself identified by the sound source unique information. In addition, the electronic or electrical sound source device included in the sound generation system of the present invention does not have to be such a specific sound source itself, and can simulate the sound generated by the specific sound source. That's fine.

  As a recording method of the sound source specific information in the recording unit, any recording method such as a magnetic method, an optical method, and an electronic memory method combined with an RFID (Radio Frequency Identification) reading method may be used. Also, the encoding format of sound source specific information to be recorded may be any format such as a binary code, a magnetic pattern, or a QR code. The recording unit can be provided or arranged in almost any place even if there is a limitation depending on the recording method employed by the recording unit.

  Therefore, when a musical instrument is configured by applying the sound generation system according to the present invention, a musical instrument having a form based on a free idea can be generated. That is, an arbitrary form / appearance may be taken without taking the form / appearance of an existing musical instrument. For example, when a recording unit according to the present invention is provided for an arbitrary “thing” other than a musical instrument, a musical instrument with a new concept that can be called “accommodation instrument” is born. Alternatively, if a recording unit according to the present invention is provided everywhere and a means for reading it is prepared, it becomes an instrument, so a new concept instrument that can be called "everywhere instrument" is born. . Alternatively, since a musical instrument having an arbitrary appearance and form that does not have a specific appearance and form can be created, a musical instrument with a new concept that can be referred to as an “amoeba instrument” is born.

  Of course, the sound generation system according to the present invention can also be configured (applied) as a musical instrument having the same form / appearance as an existing musical instrument. Furthermore, it is also possible to apply the present invention to an existing natural musical instrument (acoustic musical instrument) or to mount an acoustic sound source on a musical instrument constructed according to the present invention.

  That is, the sound generation system according to the present invention may further include a sounding body that generates an acoustic sound by physically vibrating when an external force is applied. Thus, it is possible to provide a “hybrid instrument” or “hybrid sound source” that includes both an acoustic sound source (sound generator) and an electrical or electronic sound source according to the present invention. In this case, the recording unit may be formed in at least a part of the sounding body, or may be provided in a place other than the sounding body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Basic configuration]
FIG. 1 is a block diagram showing a basic configuration of a sound generation system according to the present invention. The recording unit 1 records sound source specific information (hereinafter referred to as ID information) for identifying a specific sound source. The detector 2 is operated so as to approach the recording unit 1 by the user, and reads the ID information recorded in the recording unit 1 in response to the approach to the recording unit 1. The detector 2 includes a transmitter 3 and transmits the read ID information to the processing unit 4 wirelessly or by wire. In accordance with the ID information read by the detector 1, the processing unit 4 generates a sound generation instruction that instructs generation of the unique sound identified by the ID information. The sound source device 5 generates an acoustic signal of the specific sound electrically or electronically based on the sound generation instruction generated by the processing unit 4. Thereby, according to the approach operation with respect to the recording part 1 of the detector 2 by a user, the acoustic signal of the said specific sound will be produced | generated and real-time sound performance operation can be performed. That is, the trigger (performance action) is that the detector 2 is brought into contact with or close to the recording unit 1 by a user performance operation such as a picking operation or a batting operation, which will be described later (hereinafter referred to as “the detector is turned on”). This makes it possible to proceed with musical instrument performance.

  The physical location of the recording unit 1, the processing unit 4, and the sound source device 5 may be anywhere. For example, these may belong to one musical instrument main body configured according to the present invention. Alternatively, the recording unit 1 and the processing unit 4 may belong to the instrument body side, and the sound generation instruction generated by the processing unit 4 may be transmitted to the external sound source device 5 wirelessly or by wire. Alternatively, the sound generation instruction generated by the processing unit 4 may be temporarily stored in a storage device, and the performance may be reproduced in non-real time at a time different from the approaching operation of the detector 2 to the recording unit 1 by the user.

  As a recording method of ID information in the recording unit 1, any recording method such as a magnetic method, an optical method, and an electronic memory method combined with an RFID reading method may be used. The ID information to be recorded may be encoded in any format such as a binary code, a magnetic pattern, or a QR code. The detector 2 includes a sensor (a magnetic sensor, an optical sensor, or the like) having a configuration suitable for reading the ID information in accordance with the ID information recording method in the recording unit 1.

  The sounding body 6 generates an acoustic sound by physically vibrating when an external force is applied, and includes an acoustic sound source such as a string. The recording unit 1 may be formed in at least a part of the sounding body 6 or may be provided in a place other than the sounding body 6. Further, the sounding body 6 (acoustic sound source) may not be provided. However, if the sounding body 6 (acoustic sound source) is provided, a “hybrid instrument” having both an acoustic sound source (sounding body 6) and an electrical or electronic sound source according to the present invention as a musical instrument configured according to the present invention. A “hybrid sound source” can be provided. That is, since the detector 2 substantially has a function as a sound generation trigger means, the musical sound is generated from the electronic sound source device by “turning on the detector”, and at the same time, the “on operation” is performed. It can be said that it is a hybrid instrument because sound is generated from an acoustic source based on it.

[Specific Example 1]
Furthermore, specific examples of the present invention will be described.
FIG. 2 is an external view showing an example in which the sound generation system according to the present invention is realized as a “hybrid musical instrument” in the form of a harp musical instrument.

  The harp musical instrument 10 includes a hollow body 11 that is a resonance body, and a plurality of strings 12 that are stretched between the pieces 10 a and 10 b on the body 11. The hollow body 11 is provided with sound holes 10c, 10d, and 10e. The harp musical instrument 10 functions as an acoustic musical instrument with a configuration including a hollow body 11 and a string 12. That is, when an external force is applied to the string 12 by nail play, the string 12 physically vibrates, and the hollow body 11 resonates to generate an acoustic sound. The pitch in this case is determined by the thickness and length of the string 12 and the tension, as is generally known. Further, the musical tone characteristics such as timbre and volume are determined by the material and structure of the strings 12 and the hollow body 11 and the playing condition by the player.

  From the viewpoint of the function as a sound generation system according to the present invention, the string 12 has a function as a recording unit that records ID information for identifying a unique sound. In addition, a dedicated pick 13 (FIGS. 2 and 4) for playing the nail of the string 12 is prepared, and the pick 13 is configured to function as the detector 2. That is, the string 12 is not a normal simple harp string, but ID information for identifying a specific sound (for example, a specific pitch) is recorded in a predetermined recording method in advance. For example, a steel string 12 is obtained by magnetizing codes (ID information) indicating musical tone specific information (for example, musical pitch) that each string plays in each string in a predetermined pattern. As a result, when the string 12 is played with the pick 13, not only the sound as an acoustic instrument is generated as described above, but also the ID information is detected from the string 12 with the pick 13 according to the present invention, and the detected ID information is detected. A musical sound signal can be generated electronically based on the above and sounded. Thus, a hybrid musical instrument in which a natural musical instrument and an electronic musical instrument are integrated can be provided.

  FIG. 3A is a diagram illustrating a magnetization pattern of the string 12. The ID information consists of a predetermined number of bits (for example, 6 bits), and the same ID information is repeatedly recorded (magnetized) in the length direction in one string 12. In order to distinguish one unit of ID information that is repeatedly recorded (magnetized), the ID information code consisting of 6 bits per unit is a delimiter code P of a predetermined number of bits (for example, 2 bits). It is attached to the least significant bit side (or may be the most significant bit side). In the illustrated example, the delimiter code P is composed of 2 bits magnetized in the SN direction with respect to the string extending direction. On the other hand, in the ID information code, one bit is magnetized in the NS direction opposite to the delimiter code P. When the logical value of the bit is “1”, the ID information code is in the NS direction. It is magnetized and is not magnetized when it is “0”. Thus, since the demagnetization code P and the ID information code have different magnetization directions, the delimitation code P can be easily detected. From the position of the delimitation code P, a predetermined number of bits (for example, 6 bits) can be used. It is possible to easily extract one unit of ID information. It is assumed that the width B of 1 bit in the magnetization pattern is uniformly set to a predetermined length for every bit. In order to clarify the distinction between the bits, it is preferable to provide an unmagnetized portion at the boundary between the bits.

  FIG. 4A is a plan view of an example of the pick 13 configured to function as the detector 2 for reading the ID information recorded on the string 12, and FIG. 4B is a side view thereof. The pick 13 has a planar appearance shape that is wide so that the upper part (hand-held part) can be easily grasped with a finger, and the tip part (playing part) plays the string smoothly, as in the known pick. It is made of a rounded shape so that it can be made, and has an appropriate elasticity. Sensors and electric / electronic circuits necessary to function as the detector 2 are provided on the surface and inside of the pick 13. On the surface of the pick 13, an MR sensor 13 a composed of a plurality of magnetoresistive elements provided in a predetermined arrangement is provided as a sensor for reading ID information recorded on the string 12. Further, a strain sensor 13b is provided as a trigger sensor for detecting that the pick 13 has played the string 12. The strain sensor 13b can function not only as a trigger sensor but also as a touch sensor for detecting a performance touch. Further, a transmitter 13c for transmitting the output signals of these sensors 13a and 13b to the processing device of the system and an electric / electronic circuit related to the transmitter 13c are provided inside the pick 13. In order to incorporate these transmitters 13c, circuits, etc., as shown in FIG. 4B, the thickness of the upper portion (hand-held portion) of the pick 13 may be somewhat thick.

  FIG. 5 is an enlarged view showing an arrangement pattern example of the MR sensor 13 a at the tip of the pick 13. In order to be able to read the ID information recorded on the string 12 no matter what relative positional relationship the pick 13 plays, the MR sensor 13a is provided in an appropriate arrangement. And In the arrangement example shown in FIG. 5, 16 MR sensor rows 13a-1 to 13a-16 are provided in the horizontal direction, and the width of each row corresponds to the width B of 1 bit in the magnetization pattern. Each MR sensor row 13a-1 to 13a-16 is composed of MR sensors having a maximum of three stages (three) and a minimum of one stage (one), and the output of the MR sensor 13a in the same row is OR. These are combined into one output signal. With this configuration, when each bit of the ID information recorded on the string 12 is associated with each MR sensor row 13a-1 to 13a-16 on a one-to-one basis, each MR sensor row 13a-1 to 13a-16. The output signal indicating the value of the associated bit (S-N magnetization, N-S magnetization (ie, 1) or non-magnetization (ie, 0)) can be obtained. It should be noted that detection accuracy can be secured even if there is a slight shift in the approach position / angle of the pick 13 with respect to the string 12 by adopting a multi-stage sensor arrangement. The configuration shown in FIG. 5 is devised in the contact angle of the pick 13 with respect to the string 12, and the configuration shown in FIG. It is devised so that it can be detected. Each MR sensor 13a is composed of a bipolar two-output type MR sensor having an SN magnetization detection output and an NS magnetization detection output. In this case, “OR synthesis” means that OR magnetization detection output and NS magnetization detection output are ORed separately. In addition, the output 1 bit of each MR sensor 13a refers to a pair of SN magnetization detection output and NS magnetization detection output as 1 bit. That is, in the 16-bit output signal output from each MR sensor array 13a-1 to 13a-16, 16 bits of the SN magnetization detection output for detecting the delimiter code P and ID information are detected. The N-S magnetization detection outputs of 16 bits form a pair, and consist of 16 pairs of detection signals.

  Then, an arrangement pattern of a large number of MR sensors 13 a as shown in FIG. 5 is provided on both surfaces of the pick 13. The arrangement pattern on both surfaces of the pick 13 should be arranged with a slight phase shift in the horizontal direction, not the same phase. FIG. 3B is a schematic cross-sectional view showing the phase shift of the arrangement pattern on both surfaces of such a pick 13. As a result, even if the abutment position in the chord longitudinal direction of the pick 13 with respect to the arrangement of the magnetization pattern in the string 12 is slightly shifted, the MR sensor arrangement pattern on either pick surface is more appropriately changed to the arrangement of the magnetization pattern in the string 12. It can be made to correspond, and a detection without a dead zone can be performed. That is, in the arrangement pattern on one surface, the approximate center of each sensor may be located at the boundary of each bit of the magnetic pattern of the string 12, but in such a case, in the arrangement pattern on the other surface, Since the approximate center of each sensor is positioned approximately at the center of each bit of the magnetic pattern of the string 12, accurate detection can be performed based on this detection output. For convenience, one surface of the pick 13 is referred to as an A surface and the other surface is referred to as a B surface.

  In FIG. 5, an example of the positional relationship of the strings 12 that are contacted by the pick 13 is indicated by a one-dot chain line. Even if the contact position of the string 12 comes between the two sensor elements in the vertical direction in each of the MR sensor rows 13a-1 to 13a-16, the bit of the magnetic pattern of the string 12 can be detected by both sensor elements. Further, since the pick 13 is plucked so as to be shifted in the vertical direction in FIG. 5, the string 12 is surely secured by any one of the plurality of vertical sensor elements in each of the MR sensor rows 13a-1 to 13a-16. The bit of the magnetic pattern can be detected.

  FIG. 6 shows an example of a transmitter 13c built in the pick 13 and an electric / electronic circuit related thereto and an example of a circuit on the receiving side. The transmitter 13c is connected to the output signal (A) of the 16 MR sensor rows 13a-1 to 13a-16 on the A side and the 16 MR sensor rows 13a-1 to 13a-16 on the B side via the amplifier 13d. Output signal (B) is input in parallel. The output of the strain sensor 13b is given to the transmission control input of the transmitter 13c via the amplifier 13e. Based on the output of the strain sensor 13b, it is detected that the pick 13 has played the string 12 (performance trigger detection), and at that time, sensor output signals obtained from the MR sensor arrays 13a-1 to 13a-16 on each surface are transmitted. Transmit to the outside from the device 13c. This transmission uses a wireless transmission method, but other non-contact communication methods may also be used.

  In addition, without providing the strain sensor 13b, it is possible to detect when each bit of the sensor output signal falls to all zeros and to use it as the transmission timing of the sensor output signal. In that case, the sensor output signal before falling to all zeros is stored in a buffer, and the sensor output signal stored in the buffer is transmitted. As described above, if the all-zero detection timing of the sensor output signal generated after the string 13 is touched by the pick 13 is defined as the tone generation timing, it matches the tone generation pattern of the acoustic plucked instrument.

  The strain sensor 13b also functions as a performance touch sensor, and the transmitter 13c transmits the output signal of the strain sensor 13b in real time.

  An electronic device (electronic musical instrument realization device) corresponding to the processing unit 4 and the sound source device 5 in the system shown in FIG. 1 is mounted at an appropriate portion of the harp musical instrument 10 shown in FIG. A loudspeaker that acoustically emits the generated musical sound signal is mounted. The electrical / electronic processing unit 4 and the sound source device 5 and related parts such as a speaker may be provided outside the musical instrument 10, that is, separately from the musical instrument 10. The part surrounded by the chain line is a separate structure. That is, the musical instrument 10 may be a natural musical instrument in which a string 12 obtained by applying magnetic recording processing to an existing or custom-made harp musical instrument is stretched. In that case, transmission and reception of signals can be realized in a style of transmitting to the processing unit 4 having a separate structure via a transmitter provided in the pick 13, for example.

  As shown in FIG. 6, a CPU 14 that is involved in realizing the functions of the processing unit 4 and the sound source device 5 that are mounted on the harp musical instrument 10 (or configured separately from the outside) and the sound source device 5 is provided. Thus, a receiver 15 for receiving a signal transmitted from the transmitter 13c on the pick 13 side is provided.

  The sensor output signal received by the receiver 15 is input to the pattern recognition unit 16 to determine from which part of the sensor output signal 6-bit ID information should be extracted. Typically, 6 bits sandwiched on both sides by a 2-bit delimiter code P are ID information. Therefore, two delimiter codes P are detected from a sensor output signal (SN magnetization detection output) for 16-bit delimiter code on one surface, and 6 bits sandwiched on both sides by the two delimiter codes P are obtained. It is specified as a candidate for ID information. The pattern recognition unit 16 extracts 6-bit ID information candidates specified as described above from ID information detection sensor output signals (NS magnetization detection output) on both sides of the pick 13. In this case, even if the delimiter code P is detected only for one bit or only one side is detected, the 6 bits sandwiched by or adjacent to it may be specified and extracted as ID information candidates.

  The determination unit 17 performs a determination process for specifying 6-bit ID information based on the ID information candidates extracted by the pattern recognition unit 16. For example, if 6-bit ID information candidates extracted from the sensor output signals on both sides of the pick 13 match, this is specified as the ID information of the performance sound. Alternatively, if a 6-bit ID information candidate is extracted only on one side, it is specified as the ID information of the performance sound. Alternatively, if the 6-bit ID information candidates respectively extracted from the sensor output signals on both sides do not match, one is specified as the ID information of the performance sound according to an appropriate estimation criterion. If the ID information candidate indicates a value that does not actually exist, the value of the ID information candidate is changed according to an appropriate estimation criterion, and the ID information consisting of the actually existing value is changed to the performance sound. It is specified as ID information. Alternatively, if the ID information candidate indicates a value that does not actually exist, it may be specified as “no ID information”. In that case, it is processed without sounding, or it is sounded as a noise generating sound having no pitch information. This noise generation sound can be made to resemble, for example, a sound that does not have a clear pitch even in an acoustic plucked musical instrument, and may be generated as a wobble sound. The ID information of the performance sound thus identified is input to the CPU 14 together with a pick trigger signal indicating that a picking operation has been performed. When the strain sensor 13b is caused to function as a performance touch sensor, the output signal of the strain sensor 13b received by the receiver 15 is also input to the CPU. FIG. 6 shows a fret sensor 18 and a pressing operation detection circuit 19 that detects a pressing operation on the fret sensor 18, but these are not used in the harp musical instrument 10.

  As another example of the transmission method, instead of transmitting the sensor output signal in response to the performance trigger detection as described above, the sensor output signal is always transmitted and the output signal of the strain sensor 13b is also transmitted. It may be a way. In that case, the reception side may detect the performance trigger based on the output signal of the sensor 13b, capture the sensor output signal at that time into the buffer, and determine the ID information based on the data captured in the buffer.

  The arrangement of the MR sensor 13a provided on the pick 13 is not limited to that shown in FIG. 5, and any arrangement can be used as long as ID information consisting of a plurality of bits recorded on the string 12 can be detected effectively. Good. For example, as shown in FIG. 7, one MR sensor 13a may have a vertically long shape. Also in this case, the MR sensors 13a are arranged in about 16 rows in the horizontal direction, as in FIG. FIG. 7A shows an example in which the vertically long MR sensors 13a are arranged substantially in parallel, and FIG. 7B shows an example in which the vertically long MR sensors 13a are arranged slightly radially.

  FIG. 8 is a block diagram showing an overall hardware configuration example of an electronic device (electronic musical instrument realization device) corresponding to the processing unit 4 and the sound source device 5 mounted on the harp musical instrument 10 in relation to FIG. is there. Such an electronic musical instrument realization apparatus may use a known configuration. A ROM 20 and a RAM 21 are provided in association with the CPU 14 to constitute a microcomputer. Each device / circuit is connected to the bus 22 of the microcomputer. The setting operation element 23 is an operation element for performing various setting operations on tone color, volume, pitch, effect, etc. when the harp musical instrument 10 functions as an electronic musical instrument, and the detection circuit 24 detects the operation. Then, the operation detection signal is taken into the CPU 14 via the bus 22. The display 25 is for performing various displays when the harp musical instrument 10 functions as an electronic musical instrument. Various display data are given to the display circuit 26 via the bus 22 under the control of the CPU 14. Then, display based on the display data is performed by the display unit 25. The sound source unit 27 corresponds to the above-described sound source device 5, and sound generation instruction data for instructing a musical sound to be generated under the control of the CPU 14 is given to the sound source unit 27 via the bus 22, and the sound generation instruction data The digital musical tone signal instructed in is generated. The DSP 28 performs signal processing such as musical sound effect applying processing or filter processing on the digital musical sound signal generated by the sound source unit 27. The musical sound signal subjected to signal processing is acoustically generated from the sound system 29. As is well known, a MIDI interface 30 may be provided so that MIDI data can be exchanged with an external MIDI device 31.

  FIG. 9 is a flowchart showing an example of processing executed by the CPU 14 of FIG. 8, (a) shows the main routine, and (b) shows details of the “performance operation detection” processing executed in the main routine. Indicates. In the main routine, after a predetermined initial setting process S1, a panel process S2, a performance operation detection process S3, and a sound generation process S4 are repeatedly executed. In the panel processing S2, necessary processing is performed based on the operation detection signal of the setting operator 23, and processing for giving necessary display data to the display 25 to perform display is performed. In the performance operation detection process S3, it is detected what performance operation has been performed based on the ID information determined by the determination unit 17. In the sound generation process S4, a tone signal corresponding to the detected performance operation is generated.

  In FIG. 9B, in step S31, it is determined whether a pick trigger signal has been received. As described above, when the CPU 14 receives the pick trigger signal together with the ID information recorded on the string 12 played by the pick 13, the CPU 14 determines YES and proceeds to the next step S32. In step S32, a pitch code of a musical tone specified by the ID information is generated by referring to the MIDI conversion table based on the ID information specified by the determination unit 17. In the next step S33, musical tone control information (velocity) is generated in a MIDI format based on the output signal of the distortion sensor 13b. The pitch code and velocity data thus generated are set and output as MIDI format key-on event data. A musical tone signal is generated in the sound generation process S4 based on the key-on event data in the MIDI format. Therefore, an electronic musical sound can be generated in real time according to the operation of playing the string 12 with the pick 13. Note that the key-on event data in the MIDI format may be output to the external MIDID device 31 via the MIDI interface 30 without generating a musical tone in the harp electronic musical instrument 10. Alternatively, performance sequence data may be created by storing key-on event data in the MIDI format in a memory.

  As a modification of the harp-type musical instrument 10, the present invention can be applied not only to a harp-shaped musical instrument but also to any stringed musical instrument in which a string is played. Moreover, it is not limited to a musical instrument having a plurality of strings, and may be a musical instrument composed of only one string. Further, one string may be divided into a plurality of areas or positions, and different ID information may be recorded for each divided area or position. In this case, ID information corresponding to the region or position of the string played by the pick 13 is read, and a musical sound signal corresponding to the read ID information can be generated. For example, a tone signal having a different pitch can be generated electronically depending on the region or position of the string that is played, so that the pitch differs from the acoustic sound generated by the string played by the pick 13. An electronic musical tone having a pitch can be generated at a pitch corresponding to the region or position of the played string, and an acoustic sound and an electronic sound can be easily played.

In this case, ID information of a plurality of pitches (pitches) having a predetermined pitch relationship with respect to the fundamental frequency of the strings is recorded as, for example, magnetized pattern code information at predetermined positions (predetermined positions of the strings). And Specifically, as shown in FIG. 10A, each segment position P obtained by dividing the full length L of the steel string 12 ₁ stretched between the _two pieces BS ₁ and BS ₂ into 12 at equal intervals. ID information indicating a pitch (pitch) corresponding to P _n is provided for each section having a length of “P _n −P _n-1 ” (where n is 1 to 12) based on _{1 to} P _12. Try to record. In FIG. 10A, P ₀ and P ₁₂ are positions of the pieces BS ₁ and BS ₂ at both ends for stretching the string, and the P ₀ position corresponds to the fundamental frequency of the string (open string position). ). For example, the section between the P ₀ position and the P ₁ position records ID information indicating the pitch (pitch) corresponding to P _1, and the section between the P ₁ position and the P ₂ position corresponds to P ₂ . ID information indicating the pitch (pitch) to be recorded is recorded. . . In the section between the P ₁₁ position and the P ₁₂ position, ID information indicating a pitch (pitch) corresponding to P ₁₂ is recorded. Similar to the above embodiment, the ID information recorded in each section consists of a magnetized pattern of a code consisting of a plurality of bits. In this case, it is possible to record a magnetization pattern of at least one chord per section, but it is a detection performance to repeatedly record a plurality of magnetized patterns of the same chord along the length direction of the chord per section. Is preferable in terms of increasing The detector for detecting the ID information composed of the magnetized pattern may have the same configuration as the pick 13 shown in the above embodiment.

Here, for example, the pitch P _n to be recorded in each section is
P _n = P ₀ × 2 ^{n / 2} (where n is 1 to 12)
If the pitch is set in such a pitch relationship, a semitone scale obtained by dividing one octave into 12 can be set with one string. That is, when an arbitrary section of the string is played with the pick 13, an acoustic sound having a fundamental frequency of the pitch P ₀ which is the physical frequency of the string itself is generated, and at the same time, the ID information recorded in the section is recorded. It is possible to electronically generate musical tones with the pitch P _n shown (where n is 1 to 12).

  Thereby, as a new type of musical instrument, for example, it is possible to provide a single string musical instrument composed of only one string. This 1-string instrument can generate not only an acoustic sound having a fundamental frequency but also a scale sound of one octave. Moreover, it is not limited to a single string instrument, and may be configured as a three string instrument. If section division and pitch assignment are performed in the same manner as described above, a three-string musical instrument can electronically generate a three-octave scale sound. In this case, an arbitrary scale sound is generated electronically, while an acoustic sound having the fundamental frequency of the played string is simultaneously generated, so that a kind of continuo bass performance effect can be naturally produced.

  Note that the number of divisions of a single string is not limited to 12 as described above, and the pitch assigned to each section is not limited to the one constituting the above semitone scale, and may be appropriately designed.

FIG. 10 (b) shows such an example, and shows an embodiment in which a hybrid musical instrument suitable for a harmonic playing method called a guitar is provided according to the present invention. In FIG. 10 (b), the full length L of the steel acoustic string 12 ₂ stretched between the _two pieces BS ₁ and BS ₂ with appropriate tuning corresponds to the string vibration mode node of the pure temperament scale. Harmonic harmonic overtone pitch realized when the string 12 ₂ is physically vibrated in a state where the string 122 is lightly touched (attached) with a finger corresponding to each break position. ID information indicating (overtone frequency) is assigned to each delimiter position and recorded. This recording pattern may be the same as that shown in FIG. 3 (a), in which a plurality of bits of one code are sequentially arranged in the length direction of the string, and only one code is recorded corresponding to one position. Alternatively, the same code may be repeatedly recorded. Also in FIG. 10B, P ₀ and P ₀₁ are the positions of the pieces BS ₁ and BS ₂ at both ends for extending the string, and the P ₀ position corresponds to the fundamental frequency f _{0 of the} string ( Open string position). A position of ½ of the total length L is the position of P ₁₃ , and the positions from the P ₁ position to the P ₁₃ position are determined corresponding to a plurality of clauses of the string vibration mode of the pure temperament scale as shown in the following table.

In the above table, the fractions listed under each position indicate the length from P ₀₁ to each corresponding position as a ratio to L. For example, the pitch frequency f ₁₃ of the harmonic overtones at the P ₁₃ position is
f ₁₃ = 2f ₀
The pitch indicates the pitch one octave above the fundamental frequency f ₀ of the string. Also, the pitch frequency f ₈ of the harmonic overtones at the P ₈ position is
f ₈ = 3f ₀
And a pitch indicating a pitch of 5 degrees one octave higher than the fundamental frequency f _{0 of the} string. Although not shown in the above table, also between the P ₁₃ position to the P ₀₁ position, similar to the between the P ₁ position to the P ₁₃ position, because there is node of string vibration modes of intonation scale ID information indicating the overtone pitch corresponding to the positions of the nodes may be recorded. For example, the P ₁₄ position is a node having a length of 1/3 from P ₀₁ , and the pitch frequency f ₁₄ is
f ₁₄ = 3f ₀
And a pitch indicating a pitch of 5 degrees above one octave of the fundamental frequency f ₀ of the string.

  When playing a hybrid musical instrument suitable for the above-described harmonic playing method, the detector for detecting ID information according to the present invention is attached to the accessory finger. For example, the detector for detecting ID information attached to the accessory finger may be configured as a ring-type pick PC of a type that fits into the finger 61 as shown in FIG. FIG.10 (d) is a side view of (c). This ring-type pick PC includes an MR sensor 13aa in a ring-shaped holder portion FH. When the ring-type pick PC is attached to the finger 61, the MR sensor 13aa is attached so as to come to the ventral side of the finger. The MR sensor 13aa may be substantially the same as the arrangement structure of the MR sensor 13a in the pick 13 described with reference to FIG. 3, FIG. 4, FIG. 5, and FIG. Since an extra amount can be secured as compared with the MR sensor 13a of the type provided at the tip of the pick, it is possible to increase the detection accuracy by arranging more sensor elements accordingly. When detecting ID information with a finger attached to a string, the MR sensor 13aa of the holder portion FH touches the string so that the ID information can be read by attaching the finger to the string on the belly side of the finger 61. A transmitter is attached to the ring-type pick PC in the same manner as the pick 13. Further, a contact sensor for detecting that the MR sensor 13aa is in contact with the string may be provided in the ring-type pick PC. Alternatively, when the output of the MR sensor 13aa is sent to the processing unit 4 via the transmitter and it is determined that new ID information is detected in the processing unit 4, it is detected that the MR sensor 13aa is in contact with the string. It ’s okay.

  A method for playing a hybrid musical instrument suitable for the above-described harmonic playing method will be described. In one performance method, a ring-type pick PC is fitted to one or a plurality of fingers 61 of one hand, and the MR sensor 13aa of the pick PC is lightly brought into contact with a position corresponding to a desired node of the string. Play the string with the finger of the other hand or the pick you have on the other hand. Thus, an electronic sound based on the ID information detected by the MR sensor 13aa brought into contact with the desired knot position of the string with one hand, and an acoustic sound based on directly playing the string with the finger of the other hand, Can be generated together. Note that the sound generation trigger timing for generating an electronic sound may be the timing at which the MR sensor 13aa is brought into contact with the string (that is, the timing at which ID information is newly detected). Alternatively, the distortion sensor and transmitter are housed in the pick held in the other hand, and the sounding trigger timing is determined based on the distortion detection signal output from the distortion sensor when the string is played with the pick. Also good. For example, when a distortion detection signal of a predetermined level or higher is obtained (that is, when a string is played strongly by a pick and a clear acoustic sound is generated), based on the distortion detection signal of the predetermined level or higher. Trigger an electronic sound.

  In another performance method, a ring-type pick PC is fitted on one or a plurality of fingers 61 (for example, the index finger) of one hand, and the MR sensor 13aa of the pick PC is positioned at a position corresponding to a desired node of the string. At the same time, the string is played with another finger (for example, the middle finger) of the same hand. Also by this, an electronic sound based on the ID information detected by the MR sensor 13aa brought into contact with the desired knot position of the string with any finger, and an acoustic sound based on directly playing the string with another finger, Can be generated together.

  Thus, the performance by the harmonic performance method can be easily performed. In particular, an advanced technique is required to produce a harmonic sound close to a piece with an acoustic guitar, but according to the present invention, an electronic sound generates a harmonic of a pure temperament corresponding to a node touched by a finger. Therefore, harmonic sounds that require such advanced techniques can be easily produced.

  Of course, if the string is not played directly, an electronic sound based on the ID information detected by the MR sensor 13aa brought into contact with the desired knot position of the string with one of the fingers (pure scale tone) is generated. This makes it possible to perform a clear tone based on the pure temperament scale.

  In addition, some of the harmonic overtone pitches of the harmonic sounds corresponding to each node position shown in Table 1 have different octaves. According to the present invention, since the harmonic sound is generated as an electronic sound, it is possible to generate a purely tempered harmonic sound by converting the pitch so that all the sounds of each clause become a common octave. This is convenient when performing a melody performance based on a pure temperament scale.

  In the ring-type pick PC, a picking tip PP may be provided so as to protrude from the holder FH on the opposite side of the MR sensor 13aa, and ID information may be provided on the picking tip PP. A second MR sensor 13a for detection may be provided. Since the second MR sensor 13a is a type provided at the tip of the pick, the second MR sensor 13a may have a configuration similar to that shown in FIGS. The second MR sensor 13a is useful for detecting the ID information recorded on the strings when playing the harp with both hands. In other words, a suitable number of these ring-type pick PCs are fitted on the fingertips of both hands of the player, and the harp is played with both hands by playing the strings so that the MR information 13a at the tip of the pick reads the ID information recorded on the strings. A simulated performance can be performed and an electronic sound based on the performance can be generated.

  In any of the embodiments of the present invention, the timbre of the electronic musical tone generated based on the ID information need not be the same as or similar to the timbre of the acoustic sound generated by the hybrid musical instrument. It can be. By doing so, it is possible to perform an ensemble performance by simultaneously generating electronic musical sounds and acoustic sounds generated based on the ID information with different timbres. Further, the tone color of the electronic musical tone generated based on the ID information is not limited to a normal musical tone color, and may be a sound effect such as a whistle sound or a hand clap sound. In any of the embodiments, the envelope characteristic of the electronic musical sound generated based on the ID information is not a characteristic that requires a sustain sound such as an organ sound, that is, a key-off trigger, but a characteristic that can be enveloped only by a key-on trigger. (For example, an attenuation characteristic or a percussion type envelope characteristic) is preferable. This is because the key-off process is unnecessary, and the control is simplified. However, the present invention is not limited to this, and electronic musical tones may be generated with an envelope characteristic that requires a key-off trigger (a continuous envelope characteristic). In that case, for example, in the mode in which the envelope characteristic of the continuous system is selected, it may be devised to treat the first picking as a key-on trigger and the second picking as a key-off trigger.

[Specific Example 2]
As an application form of the above-described harp musical instrument 10, as shown in FIG. 11, an electronic guitar musical instrument 50 can be configured according to the present invention. The recording method of ID information for each of the strings 51 to 56 in the electronic guitar type musical instrument 50 is the same as the recording method of the ID information for the string 12 in the harp type musical instrument 10. The pick configuration is the same as that of the pick 13. The hardware configuration of the electronic guitar-type musical instrument 50 may be the same as that shown in FIGS. The electronic guitar-type musical instrument differs from the harp-type musical instrument 10 in that the electronic guitar-type musical instrument 50 is provided with a plurality of frets at the neck portion 57 as is well known, so that the desired fret position is pressed. It is a point. That is, in applying the present invention to the electronic guitar-type musical instrument 50, one string does not correspond to one pitch or a note, but corresponds to a certain range or a group consisting of a plurality of notes (notes). One pitch or note within the range or group is identified from the position of the pressed fret. The ID information recorded on each string may indicate a specific pitch (note) or frequency corresponding to the open string, or may indicate a string number such as a first string or a second string. There may be.

  In order to detect which fret is pressed, electronic guitar-type instruments are configured so that each fret can be pressed in correspondence with the position of each string, and a fret sensor is provided for each fret. The position of the pressed fret is detected. Even when an electronic guitar type musical instrument is configured according to the present invention, a fret sensor is provided for each fret corresponding to the position of each string.

  The fret sensor 18 shown in FIGS. 6 and 8 is a fret sensor provided in such an electronic guitar type musical instrument. The pressing operation detection circuit 19 detects which position of the fret is pressed based on the output of the fret sensor 18 of each fret provided on the electronic guitar type musical instrument.

  The software configuration of the electronic guitar-type musical instrument 50 may be substantially the same as that shown in FIG. However, in FIG. 9B, the processing of step S32 for generating a pitch code differs from the case of the harp musical instrument 10 described above, as well as the string played by the pick, as well as the pressing operation detection circuit 19. Based on the output, the pitch is determined in consideration of the position of the pressed fret, and a pitch code indicating the determined pitch is generated. In other words, a sound generation instruction (sounding event data) is not generated only by the read ID information, but is generated in combination with position information (fret information) separately designated by the performer. Is generated. In addition, in such an electronic guitar-type musical instrument 50, it is difficult to provide a sound generation function as an acoustic guitar because it is configured so that each fret can be pressed. Therefore, the electronic guitar type musical instrument 50 according to the present invention is not a hybrid musical instrument, but is configured as an electronic musical instrument according to the present invention. As a modified example, instead of providing a fret sensor for each fret corresponding to the position of each string, a pseudo string is provided, and each pseudo string records different ID information for each section corresponding to each fret. You may do it. In that case, ID information peculiar to the fret position can be read and played in real time by bringing the detector (pick 12) into contact with or close to the position corresponding to the desired fret of the desired pseudo string.

  The electronic guitar type musical instrument 50 is not limited to the electronic guitar type musical instrument 50 using the fret sensor 18 as described above, and is a hybrid musical instrument having a configuration in which a plurality of strings are stretched from the body portion to the neck portion in the same manner as a normal acoustic guitar. Can also be configured according to the present invention. In that case, in a normal acoustic guitar, a string in which ID information is recorded corresponding to each node position is used as each guitar string so that a harmonic performance as shown in FIG. It is assumed that a desired pick-up position is touched using a ring-type pick PC during performance. As a result, it is possible to provide a guitar-type hybrid instrument that can easily perform a harmonic performance.

[Specific Example 3]
The sound generation system according to the present invention can also be realized as a “hybrid musical instrument” in the form of a vibraphone type musical instrument 60, as shown in FIG. In this case, ID information for identifying a unique sound generated by the sound board is recorded for each sound board 32 of each key of the vibraphone. In one sound plate 32, a code (ID information) indicating a musical tone specific information (for example, musical tone pitch) that the sound plate (key) takes on is magnetized in a predetermined pattern on the surface. For example, as in the example of FIG. 3A, it is assumed that one unit of the ID information magnetization pattern is a combination of a 2-bit delimiter code P and 6-bit ID information. Such ID information is repeatedly provided over the entire sound board, or at least in a portion where the mallet hits. FIG. 13A is a plan view schematically showing a magnetization pattern of ID information in one sound plate 32. One line extending horizontally indicates a 1-bit magnetization state, and a magnetization pattern of each bit is formed in the vertical direction. That is, the ID information magnetization pattern is repeated in the vertical direction of the sound board 32.

  In order to be able to detect the ID information composed of the above magnetized pattern, a dedicated mallet for hitting the sound board 32 is prepared, and this mallet is configured to function as the detector 2. And The head of the mallet is made of a material having a certain degree of hardness and elasticity, such as hard rubber, and the ID information recorded on the sound board 32 is read on the surface of the head, like the pick 13. As a sensor for this purpose, an MR sensor comprising a plurality of magnetoresistive elements provided in a predetermined arrangement is provided. FIG. 13B shows an enlarged arrangement example of a basic unit (hereinafter referred to as “cluster”) 33 of the MR sensor provided on the head of the mallet. Based on the same concept as FIG. 5, in the arrangement example of FIG. 13B, 16 MR sensor rows 33 a-1 to 33 a-16 are provided in the horizontal direction, and the width of each row is the ID information in the sound board 32. Corresponds to the width of 1 bit in the magnetized pattern. Each MR sensor row 33a-1 to 33a-16 is composed of MR sensors having a maximum of three stages (three) and a minimum of one stage (one), and the output of the MR sensors 33a in the same row is OR. These are combined into one output signal. As can be understood from the arrangement of the MR sensor rows 33a-1 to 33a-16 in such a cluster 33, the ID information detection performance by one cluster 33 has directivity. That is, when the magnetization pattern of each bit of ID information is arranged in the direction indicated by the arrow X in FIG. 13B (referred to as the directing direction X), each bit of ID information corresponds to each MR sensor row 33a. -1 to 33a-16 are associated one-to-one, and from each MR sensor row 13a-1 to 13a-16, the value of each associated bit (S-N magnetization or N-S magnetization (ie, An output signal indicating 1) or 0) can be obtained.

  As shown in FIG. 13 (c), the cluster 33 of the MR sensor 33a having the above-described configuration is represented by the directivity direction of the MR sensor rows 33a-1 to 33a-16 at the hitting portion of the head 34a of the mallet 34. A large number of Xs are arranged in a different manner. As an example, when the posture in which the handle 34b of the mallet 34 strikes in parallel with the longitudinal direction of the sound board 32 is a basic posture, the directing direction X is parallel to the handle 34b along the equator of the head 34a. In such an arrangement, a plurality of clusters 33 are arranged at appropriate intervals. The equator of the head 34a is a portion corresponding to the equator when the root of the handle 34b with respect to the head 34a is regarded as the South Pole. When the mallet 34 is hit with the handle 34b in hand, the head 34a The equatorial zone (the equator and its surroundings) is the hitting site (the sweet spot for hitting). If the sound board 32 is hit with the mallet 34 in the basic posture, it contacts the sound board 32 at any part of the equator zone of the head 34a, and the directivity direction of one cluster 33 arranged at the contact part. X is associated with the arrangement direction of each bit of the ID information recorded on the sound board 32, and each bit of the ID information is 1 in each MR sensor row 33a-1 to 33a-16 of the one cluster 33. Corresponding one-on-one. Even when the handle 34b is angled with respect to the longitudinal direction of the sound board 32 at the time of striking the mallet 34, in order to be able to read the ID information appropriately, around the equator of the head 34a (for example, A large number of clusters 33 in which the angle formed by the directivity direction X is variously arranged are arranged in a latitude range of +15 to 20 degrees to −15 to 20 degrees. Thereby, even when the mallet 34 is hit with a posture different from the basic posture, the MR sensor rows 33a-1 to 33a-16 in any one of the clusters 33 are associated with each bit of the ID information on a one-to-one basis. This is expected to prevent detection errors.

  FIG. 14 shows an example of an electronic circuit 35 provided on the side of the mallet 34 (head 34a or handle 34b). The OR combiners 35a1 to 35an are provided for each cluster 33, and one OR combiner 35a1 OR-combines the outputs of the MR sensors 13a in the same column in the corresponding cluster 33, thereby obtaining one output signal. Thus, a 16-bit output signal corresponding to each MR sensor row 33a-1 to 33a-16 in the cluster 33 is generated. A 16-bit output signal from each of the clusters 33 is further OR-combined by an OR combiner 35b, and a 16-bit sensor output signal is input to the transmitter 35c. The size of the cluster 33 is determined so that only one cluster 33 is in full contact with the sound plate 32 when the mallet 34 is hit, and the size of the magnetized pattern on the sound plate 32 is also determined. Therefore, among the plurality of clusters 33, it can be considered that only one cluster 33 is producing a substantial detection output when the mallet 34 is hit, so that each of the outputs from the OR synthesis units 35a1 to 35an is performed. The 16-bit output signal for each cluster 33 may be combined into a set of 16-bit output signals by the OR combiner 35b. Similar to the strain sensor 13b shown in FIG. 4, the strain sensor 35d disposed at an appropriate location (for example, the handle 34b) of the mallet 34 detects that the mallet 34 has been hit, that is, that a performance operation has been performed. The output is input to the transmitter 35c.

  Also in the vibraphone-type musical instrument 60 in the present embodiment, the configuration for receiving the signal transmitted from the transmitter 35c, determining the ID information based on the received signal, and generating a tone corresponding to the determined ID information is as follows. A configuration similar to that described above with reference to FIGS. 6 and 8 can be used. That is, a 6-bit signal sandwiched between the delimiter codes P in the 16-bit output signal transmitted from the transmitter 35c is extracted as ID information, and a musical sound signal is generated electronically based on this. Note that the sound plate 32 can be physically vibrated in response to the striking by the mallet 34, and an acoustic sound can be simultaneously generated. On the other hand, when it is not desired to simultaneously generate acoustic sounds, an appropriate damper mechanism may be provided so that physical vibration of the sound plate 32 is suppressed when the damper mechanism is operated. By doing so, it is possible to provide a silent vibraphone that can mute the acoustic sound while playing an acoustic vibraphone and generate an electronic musical sound instead.

  According to the embodiment of the vibraphone type musical instrument 60 described above, a hybrid musical instrument of other keyboard percussion instruments (for example, marimba) can be configured according to the present invention. In that case, since the marimba sound board is made of wood, the ID information magnetization pattern is not directly applied to the wooden sound board, but a magnetic sheet having the ID information magnetization pattern is attached to each sound board, for example. do it.

  The hybrid musical instrument according to the present invention can be applied to any type of musical instrument, not limited to the above-described stringed musical instrument, vibraphone type or marimba type musical instrument. Further, not only ordinary musical instruments but also sound effect generators such as whistles or simple percussion instruments such as cowbells, castanets, triangles, etc. are subjected to ID information magnetization patterns to generate musical sounds according to the present invention. A system may be configured. In addition, the musical tone generation system according to the present invention may be configured by applying a magnetized pattern of ID information to an arbitrary object, not limited to a musical instrument. For example, a musical sound generating system according to the present invention can be configured by applying a magnetized pattern of ID information to an arbitrary part of a three-dimensional object such as a bell.

[Specific Example 4]
The sound generation system according to the present invention can be configured as a musical instrument having an arbitrary appearance that is not restricted by the appearance of a conventional musical instrument (so-called “amoeba musical instrument”). FIG. 15 is an external view of an example of a sound generation system according to the present invention configured as such an “amoeba instrument”, using an optical two-dimensional code (QR code) as a recording format of ID information. Yes.

  In FIG. 15, the table 40 is provided with a plurality of performance corners or sides 40a to 40e, and the sound generation system (amoeba instrument) according to the present invention is provided in any appearance and form for each performance corner or side 40a to 40e. Is provided. Each of the performance sides 40a to 40e is provided with sheet-like performance interfaces 41 to 45 each having a plurality of recording units in which ID information for identifying a specific sound is recorded with an optical two-dimensional code (QR code). ing. Each sheet-like performance interface 41-45 does not have to be permanently (ie, non-removably) affixed to the table 40, but is simply placed or removed so that it can be removed at any time. May be temporarily fixed on the table with a double-sided adhesive tape or the like so as not to slide. Alternatively, the surface of the table 40 may be made of iron, and the back surfaces of the performance interfaces 41 to 45 may be configured with magnet sheets. In the center of the table 40, QR code readers 61 to 65 for reading optical two-dimensional codes (QR codes) recorded on the performance interfaces 41 to 45 are placed. The user holds the readers 61 to 65 with one hand or both hands and performs an operation of touching or approaching any one of a plurality of optical two-dimensional codes (QR codes) recorded in the performance interfaces 41 to 45. Thus, a performance operation is performed on the amoeba instrument.

  A performance interface 41 in the form of a keyboard sheet as shown in FIG. 16 is arranged on the performance side 40a on the table 40, and this is the performance interface of the first “amoeba instrument”. An image of a keyboard is printed on the keyboard sheet-like performance interface 41, and an optical two-dimensional code (QR code) QR1 indicating ID information assigned to the key is shown in the image for each key. ~ QR31 is printed. A user who holds any one of the readers 61 to 65 brings the readers 61 to 65 close to a two-dimensional code (QR code) of a desired key and reads the ID information, so that the keyboard performance is performed. In FIG. 16, one two-dimensional code (QR code) is assigned to one key. However, the present invention is not limited to this, and two or more two-dimensional codes (QR codes) are assigned to each key and printed. You may make it leave. For example, if two or more two-dimensional codes (QR codes) assigned to one key indicate ID information that represents different musical tones with the same pitch but different timbres, a highly diverse keyboard Easy to perform.

  A musical score sheet-like performance interface 42 as shown in FIG. 17 is arranged on the performance side 40b on the table 40, and this is the performance interface of the second “amoeba instrument”. The musical score sheet-like performance interface 42 has an image of a staff notation printed on it, and in accordance with the musical note sequence of a specific musical piece to be recorded on the musical staff, Optical two-dimensional codes (QR codes) QR41 to QR43 each indicating ID information including at least pitch and tone length information are printed. In this case, a user holding any one of the readers 61 to 65 causes the readers 61 to 65 to read the ID information by bringing them close to the two-dimensional code (QR code) of each note according to the note sequence on the staff. Thus, the music can be played.

  On the performance side 40c on the table 40, a performance interface 43 for a percussion instrument on which a plurality (two in the figure) of optical two-dimensional codes (QR codes) QR44 and QR45 are printed is arranged. This is a performance interface for 3 “Ameba musical instruments”. Each two-dimensional code (QR code) QR44, QR45 represents ID information indicating a predetermined percussion instrument. In this case, the user holding any one of the readers 61 to 65 brings the readers 61 to 65 close to the desired two-dimensional codes (QR codes) QR44 and QR45 to read the ID information, so that the percussion instrument Can perform.

  A performance interface 44 in the form of a keyboard sheet as shown in FIG. 16 is arranged on the performance side 40d on the table 40, and this is the performance interface of the fourth “amoeba instrument”. This is the same as the performance interface 41 described above, and is performed in the same manner.

  On the performance side 40e on the table 40, a performance interface 44 for a percussion instrument on which a plurality (two in the figure) of optical two-dimensional codes (QR codes) QR46 and QR47 are printed is arranged. This is a performance interface for 5 “Ameba musical instruments”. This is the same as the performance interface 43 described above, and is performed in the same manner.

  FIG. 18 shows an example of an optical two-dimensional code (QR code), where (a) is a known QR code having three cutout symbols, and (b) is a known micro QR code having one cutout symbol. is there. In this embodiment, any type of QR code may be used.

  Each of the readers 61 to 65 has not only a function of reading an optical two-dimensional code (QR code) but also a contact or proximity sensor for detecting that a performance operation on the sheet-like performance interface has been performed. And a transmitter for transmitting a two-dimensional code (QR code) reading signal and a contact or proximity detection signal. Although the circuit corresponding to the processing unit 4 and the sound source device 5 shown in FIG. 1 is not shown, it is naturally provided in the embodiment of FIG. 15, and these are housed in an appropriate control box, The two-dimensional code (QR code) read signal and the contact or approach detection signal transmitted from each reader 61-65 are received, this is processed to determine ID information, and a tone signal corresponding to the determined ID information is received. Generate. In this example, the ID information includes a plurality of types of data such as pitch or note data made up of numbers, tone color data made up of character codes, sound source made up of character codes, and other musical tone setting / control data. And It should be noted that this control box is fixedly disposed at an appropriate position of the table 40 (for example, the central position where the readers 61 to 65 are placed, the lower surface of the table 40, or the leg portion). Alternatively, it may be a discrete type so that it can be arbitrarily placed under the table 40 or in any other appropriate place away from the table 40.

  FIG. 19 is a flowchart showing an example of processing performed by the processing unit 4 housed in the control box. In step S41, it is determined whether or not a signal received from the readers 61 to 65 includes a contact or approach detection signal from the contact or proximity sensor. If YES, a cut-out symbol is detected from the read signal of the two-dimensional code (QR code) received from the readers 61 to 65 (step S42). That is, when a performance operation is performed in which the readers 61 to 65 are brought close to or in contact with the sheet-like performance interfaces 41 to 45, the process of step S42 is performed. If the cut-out symbol is successfully detected, the code recorded in the data area is determined from the read signal of the two-dimensional code (QR code), and ID information is extracted (step S43). Note that details of the two-dimensional code (QR code) reading / determination process performed in steps S42 and S43 are known, for example, in Japanese Patent No. 2938338, and thus detailed description thereof will be omitted. In step S44, the data included in the extracted ID information is sorted by type, the pitch data consisting of numbers is converted to pitch data in MIDI format, the meaning of the character code is confirmed, and tone data or other tone settings / Convert to control data. Each converted data is given to the tone generator 5, and a musical sound signal corresponding to the ID information is generated based on the data.

  In addition, the speaker for acoustically sounding the musical sound signal generated from the sound source device 5 in the control box may be provided at an appropriate position of the table 40 (the upper surface or the lower surface or the leg portion of the table plate), or A discrete type may be used so that it can be arbitrarily placed under the table 40 or in any other appropriate place away from the table 40.

  The form of the optical code for recording the ID information is not limited to the two-dimensional code (QR code) as described above. In addition, the shape, size, size, etc. of the sheet-like performance interface in which the ID information is recorded by the optical code can be designed in various ways. In addition, the sheet-like performance interface designed in such a manner is not limited to the table 40, and is arranged on any object (regardless of a one-dimensional object, a two-dimensional object, or a three-dimensional object) (fixed) Or semi-fixed or temporarily fixed so that it can be removed arbitrarily). This is not limited to a performance interface made up of an optical code of ID information, and the same applies to the embodiment of the type in which the ID information is recorded in a magnetized pattern. Arranged (fixed or semi-fixed or temporarily fixed so that it can be removed arbitrarily), or any one of them (regardless of one-dimensional object, two-dimensional object, three-dimensional object) You may make it magnetize ID information on a magnetic object (regardless of a one-dimensional object, a two-dimensional object, and a three-dimensional object).

  In this way, according to the present invention, it is possible to provide a musical instrument with a novel concept that can be referred to as an “accommodation instrument” that does not have its own unique appearance. In other words, as long as a recording unit according to the present invention is provided everywhere and a means for reading it is prepared, it becomes a musical instrument, so a new concept that should be called “everywhere musical instrument”. Instruments can be provided. In other words, since a musical instrument having an arbitrary appearance and form that does not have a specific appearance and form can be created, it is possible to provide a musical instrument with a new concept that can be called an “amoeba musical instrument”.

The block diagram which shows the basic composition of the sound generation system according to this invention. The external view which shows the example which implement | achieved the sound generation system according to this invention as a hybrid musical instrument with the form of a harp type musical instrument. (A) is a figure which illustrates the magnetization pattern of a string, (b) is a cross-sectional schematic diagram which shows the phase shift of the arrangement pattern in both surfaces of a pick. (A) is a top view of an example of the pick comprised so that it might function as a detector for reading ID information recorded on the string, (b) is the side view. The figure which expands and shows the example of the arrangement pattern of MR sensor in the front-end | tip part of a pick. The figure which shows an example of the transmitter incorporated in a pick, an example of the electric / electronic circuit relevant to it, and a circuit of the receiving side. The figure which expands and shows the example of another arrangement pattern of MR sensor in the front-end | tip part of a pick. FIG. 7 is a block diagram showing an overall hardware configuration example of an electronic device corresponding to a processing unit and a sound source device mounted on a harp musical instrument in relation to FIG. 6. FIG. 9 is a flowchart showing an example of processing executed by the CPU of FIG. 8, (a) shows the main routine, and (b) shows details of the “performance operation detection” processing executed in the main routine. The figure which shows notionally the structure of the string which divided one string into several area | regions or positions, and recorded different ID information for every divided area | region or position. The external view of the Example which implement | achieved the sound generation system according to this invention with the form of the electronic guitar type musical instrument. The external view of the Example which implement | achieved the sound generation system according to this invention as a hybrid musical instrument in the form of a vibraphone type musical instrument. The specific example of the detail in the Example which implement | achieved the sound generation system according to this invention as a hybrid musical instrument in the form of a vibraphone type | mold musical instrument is shown, (a) is a plane which shows typically the magnetization pattern of ID information in one sound board. FIG. 4B is an enlarged view of an arrangement example of clusters that are basic units of the MR sensor provided on the head of the mallet, and FIG. 5C is a view showing an arrangement example of many clusters on the head of the mallet. The figure which shows an example of the electronic circuit provided in the side of a mallet. 1 is an external view of an example in which a sound generation system according to the present invention is configured as an “amoeba instrument”. The figure which shows the performance interface of the keyboard sheet form in "Ameba musical instrument." The figure which shows the performance interface of the score sheet form in "Ameba musical instrument". The figure which illustrates the well-known QR code and micro QR code which are employ | adopted with "amoeba musical instrument." The flowchart which shows an example of the process performed by "Ameba musical instrument."

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording part 2 Detector 3 Transmitter 4 Processing part 5 Sound source device 6 Sound generator 12 String 13 Pick 13a-1 to 13a-16 MR sensor row 13c Transmitter

Claims (18)

A recording unit that records sound source specific information for identifying a specific sound source;
A detector operated by a user to approach the recording unit, the detector reading the sound source specific information recorded in the recording unit in response to the approach to the recording unit;
A sound generation system comprising: processing means for generating a sound generation instruction for instructing generation of a sound corresponding to the specific sound source according to the sound source specific information read by the detector. A sound source device that electrically or electronically generates a sound signal of a sound corresponding to the specific sound source based on the sound generation instruction generated by the processing means;
The sound generation system according to claim 1, further comprising: A sounding body that physically vibrates and generates acoustic sound when external force is applied,
The sound generation system according to claim 1, further comprising:   4. The sound generation system according to claim 3, wherein the sounding body is the inherent sound source, and the recording medium is provided in at least a part of the sounding body.   5. The sound generation system according to claim 1, wherein the recording unit records the sound source specific information so as to be read electromagnetically or optically.   The sound generation system according to claim 5, wherein the sound source specific information is recorded in a QR code format.   The recording unit records the sound source specific information individually corresponding to a plurality of specific sound sources, and reads the sound source specific information corresponding to any specific sound source with the detector, The sound generation system according to claim 1, wherein a sound generation instruction corresponding to the read sound source specific information is generated in real time.   The recording unit has a sheet shape, the sheet is disposed at an arbitrary place, and the detector is brought close to the recording unit at the arbitrary position to form the sound source specific information. The sound generation system according to claim 1, wherein a sound generation instruction corresponding to the read sound source specific information is generated in real time at an arbitrary location. The specific sound source identified by the sound source specific information corresponds to a specific pitch,
The said processing means produces | generates the said sound generation instruction | indication of the sound of the said specific pitch according to the said sound source specific information read with the said detector, The Claim 1 thru | or 8 characterized by the above-mentioned. Sound generation system. The unique sound source identified by the sound source specific information corresponds to a plurality of sound groups,
A position specifying unit for specifying the position of an arbitrary sound in the group by a user operation;
The processing means generates the sound generation instruction of one sound determined according to the sound source specific information read by the detector and the position specified by the position specifying means. The sound generation system according to any one of 8.   The sound generation system according to claim 1, wherein the sound generation instruction includes MIDI event data.   12. The recording unit according to claim 1, wherein the recording unit is provided corresponding to each string of a stringed instrument, and the sound source specific information includes information for identifying a corresponding string as the specific sound source. Sound generation system.   The sound generation system according to claim 12, wherein the detector is arranged on a pick for playing the string.   12. The recording unit is provided corresponding to a sound plate of each key of a keyboard percussion instrument, and the sound source specific information includes information for identifying a corresponding sound plate as the specific sound source. The sound generation system according to any one of the above.   The sound generation system according to claim 14, wherein the detector is arranged on a head of a mallet for hitting the sound plate.   The recording unit is provided corresponding to an image of each key in a picture of a keyboard drawn on a sheet, and the sound source specific information includes information for identifying a corresponding key as the specific sound source. The sound generation system in any one of thru | or 8 and 11. A recording unit that records sound source specific information for identifying a specific sound source;
A detector operated by a user to contact the recording unit, wherein the detector reads the sound source specific information recorded in the recording unit in response to the contact with the recording unit;
Preparing means for preparing generation of sound corresponding to the specific sound source according to the sound source specific information read by the detector;
A sound generation system comprising a sound generation trigger means for defining a sound generation timing and advancing a performance. A recording unit that records sound source specific information for identifying a specific sound source;
A detector operated by a user to contact the recording unit, wherein the detector reads the sound source specific information recorded in the recording unit in response to the contact with the recording unit;
Preparing means for preparing generation of sound corresponding to the specific sound source according to the sound source specific information read by the detector;
A sound generation trigger means for defining the sound generation timing and advancing the performance, wherein the recording unit is applied to a vibration node of an acoustic string, and the preparation means generates the sound by contacting the vibration node with the detector The sound generation system is characterized in that the sound generation trigger means triggers a sound generation by operating a string position other than the vibration node.

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