JP2008216603A - Electronic musical instrument and performance processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic musical instrument capable of creating musical instrument sound of a fine desired generation irrespective of the number of sound source data prepared beforehand, without increasing sound source data. <P>SOLUTION: When a degree of new and old (generation) is indicated, the electronic musical instrument selects a sound source data (a waveform data or a feature parameter) of a predetermined generation, and based on the selected sound source data, a musical sound signal for simulating musical instrument sound of the generation corresponding to the degree is created. For example, a waveform data A of a generation (A.D.1800) nearest to an indicated generation (A.D.1760) is selected (Ws), and based on difference of the indicated generation from the selected waveform data A, an attack characteristic (attack emphasis) of the waveform data A, a decay characteristic (fast attenuation) and a frequency characteristic (EQ high frequency region emphasis) are controlled (Eq, Eg, Vc and Lca). Moreover, the sound source data of new and old generations nearest to the indicated generation are combined according to the difference of the indicated generation from each generation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic musical instrument that can generate a musical instrument sound of a desired age.

As a technique for reproducing the performance of a specific musical instrument, for example, an electronic musical instrument sound source equipped with data sampled from a piano of a specific brand is known from Non-Patent Documents 1 and 2.
http://web.archive.org/web/20060420061153/http://www.midia.co.jp/products/ni/sampling_line/akoustik_piano/akoustik_piano.html (URL on the Internet official electronic library) http://www.midia.co.jp/products/ni/sampling_line/akoustik_piano/akoustik_piano.html (original URL)

  On the other hand, reproducing the performance of a song composed in an old age with the musical instrument at the time of composing can feel the composer's intention deeper and is considered academically valuable. When trying to reproduce such a performance by an old musical instrument with an electronic musical instrument, it is difficult to sample the tone of an old musical instrument, and it is impossible to reproduce the performance of a musical instrument of an age that could not be sampled. In addition, in a low-priced electronic musical instrument, only a specific musical instrument tone color is prepared for the sound source, and it is impossible to mount a large amount of tone color data.

  In the case of a piano, the history of the piano may be said to be a history of increasing the dynamic range. However, in the electronic musical instrument, the same kind of timbre is played with the same dynamic range. Old pianos have a simple keyboard mechanism and light weight of parts, so the touch of the keys when playing is also light, but as a result of repeated improvements in the repeatability and dynamic range, the touch gradually becomes heavier It was. However, nothing that reproduces such musical tone characteristics has been found.

  In view of such circumstances, the main object of the present invention is to provide an electronic musical instrument that can produce a musical instrument sound of a desired desired age regardless of the number of sound source data prepared in advance without increasing the number of sound source data. Objective.

  According to the main feature of the present invention, sound source data storage means (Wm, Pm) storing sound source data of a plurality of ages, and old / old degree designation means (15a; S1, S4) for designating the degree of old and new according to user operation And sound source data selection means (Ws, Ws1, Ws2, Ps1) for selecting sound source data of a predetermined age from sound source data of a plurality of ages stored in the sound source data storage means in accordance with the degree designated by the old and new degree designation means , Ps 2; V 11, V 21, V 31) and the sound source data selected by the sound source data selection means, a musical tone signal that simulates the musical instrument sound of the age corresponding to the degree specified by the old and new degree designation means is generated. Simulation means (Eq, Eg, Vc, Mx, Rc, Lca, Lcb; V12 to V14, V22 to V25, V32 to V35, S6 S7) and an electronic musical instrument (EM) [Claim 1] and a sound source data storage means (Wm, Pm) storing sound source data of a plurality of ages, and a computer (EM) functioning as an electronic musical instrument In addition, a new / old degree designating step (S1, S4) for designating the degree of old / old according to the user operation (15a), and a plurality of data stored in the sound source data storage means according to the degree designated in the old / old degree designating step. Based on the sound source data selection step (V11, V21, V31) for selecting sound source data of a predetermined age from the sound source data of the age, and the sound source data selected in the sound source data selection step, the degree specified in the old and new degree designation step Simulation steps (V12 to V14, V22 to V25, V32 to V) for generating musical sound signals simulating musical instruments of the corresponding age 5, S6, S7) and performance processing program for executing the steps consisting [Claim 6] is provided. Note that the parentheses are reference symbols, terms, or parts of the examples given for convenience of understanding.

  In the electronic musical instrument (EM) according to the present invention, the new / old degree designating means (15a; S1, S4) can be configured to designate the old and new degree by the age.

  In the electronic musical instrument (EM) according to the present invention, the sound source data storage means (Wm) stores waveform data obtained by sampling instrument sounds of each age as sound source data, and simulation means (Eq, Eg, Vc, Lca; V12 to V14). , S6, S7) at least one of the attack characteristic, the frequency characteristic, and the attenuation characteristic of the waveform data (Ws) selected by the sound source data selection means based on the degree designated by the old / old degree designation means. It can control and simulate the musical instrument sound of the age corresponding to the said degree (FIG. 4, FIG. 5) [Claim 3].

  In the electronic musical instrument (EM) according to the present invention, the sound source data selecting means (Ws1, Ws2, Ps1, Ps2; V21, V31) outputs sound source data of a plurality of ages according to the degree specified by the old and new degree specifying means. The simulation means (Mx, Rc, Lcb; V22 to V25, V32 to V35, S6, S7) selects a plurality of ages selected by the sound source data selection means based on the degree designated by the old and new degree designation means. The sound source data is synthesized and the musical instrument sound of the age corresponding to the degree is simulated (FIGS. 6 and 7) [Claim 4].

  Further, in the electronic musical instrument (EM) according to the present invention, the simulation means (S6, S7) changes the tone intensity of the musical tone signal based on the degree designated by the old and new degree designation means (FIG. 3). It can be constituted as follows.

  In the electronic musical instrument (EM) according to the main feature of the present invention (Claims 1 and 6), when a new and old (old / new) degree is designated by a user operation, sound source data storage means (Wm, Pm) according to the designated degree. ) Is selected (Ws, Ws1, Ws2, Ps1, Ps2; V11, V21, V31) from the sound source data of a predetermined age, and based on the selected sound source data, the age corresponding to the degree is selected. Musical sound signals simulating the instrument sounds are generated (Eq, Eg, Vc, Mx, Rc, Lca, Lcb; V12 to V14, V22 to V25, V32 to V35, S6, S7). In other words, natural musical instruments such as pianos have characteristics with respect to timbre and volume that change with a certain direction in the evolution process, so based on the sound source data of a predetermined age, A musical tone signal is generated by simulating musical instruments of the era corresponding to the specified old and new degrees. Therefore, according to the present invention, it is possible to create instrument sounds of a desired age without increasing the sound source data prepared in the sound source data storage means, and to improve the quality of the reproduced old instrument sounds.

  In the electronic musical instrument (EM) according to the present invention, since the degree of old and new (old / new) designated by the user operation is associated with the age (claim 2), the user can select the sound source prepared in the sound source data storage means. Regardless of the number of data, it is possible to continuously specify a fine desired age, and it is possible to produce an instrument sound of a specified desired age with high quality.

  In the electronic musical instrument (EM) according to the present invention, waveform data obtained by sampling musical instrument sounds of various ages as sound source data is stored in the sound source data storage means (Wm), and simulation means (Eq, Eg, Vc, Lca; V12˜ V14, S6, S7) select waveform data of one age according to the degree specified by the user operation (Ws), and control the attack characteristic, frequency characteristic or attenuation characteristic of the read waveform data, The musical instrument sound of the age corresponding to the degree is simulated (FIGS. 4 and 5) (Claim 3). In other words, for the sampling waveform of one era, the musical sound characteristic parameters such as “attack emphasis”, “EQ high frequency emphasis” or “fast decay” are processed according to the designated degree. It is possible to simulate the high-quality sound of the corresponding old musical instrument production.

  In the electronic musical instrument (EM) according to the present invention, sound source data of a plurality of ages is selected according to the degree designated by the user operation, and the selected plurality of sound source data is synthesized based on the designated degree. Thus, the musical instrument sound of the age corresponding to the degree is simulated (FIGS. 6 and 7) (Claim 4). For example, when waveform data obtained by sampling instrument sounds of each age is stored as sound source data in the sound source data storage means (Wm), waveform data of two ages are selected according to the designated degree (Ws1). , Ws2; V21), these two sampling waveforms are mixed according to the mixing ratio obtained from the degree (Mx; V22 to V25). When the sound source data includes characteristic parameters representing instrument sounds of each age in the sound source data storage means (Wm), the two age characteristic parameters are selected according to the designated degree (Ps1, Ps2; V31), these two characteristic parameters are re-synthesized (morphed) according to the interpolation ratio obtained from the degree (Rc; V32 to V35). Therefore, according to the present invention, it is possible to simulate a high-quality musical tone at the time of producing an old musical instrument corresponding to a specified degree from sound source data (waveform data and characteristic parameters) of a plurality of ages.

  In the electronic musical instrument (EM) according to the present invention, the tone intensity of the musical tone signal is further changed based on the degree designated by the user operation. For example, as the specified degree approaches the present day, the touch curve is automatically set so that the volume dynamic range of the generated musical sound signal is increased or the keyboard touch becomes heavier. Therefore, according to the present invention, old musical instrument sounds can be reproduced with a more realistic feeling.

〔System configuration〕
FIG. 1 is a diagram for explaining an outline of an electronic musical instrument according to an embodiment of the present invention, and FIG. 1 (1) shows a hardware configuration block diagram of the electronic musical instrument according to an embodiment of the present invention. This electronic musical instrument EM is provided with not only an electronic music device dedicated to music information processing (ordinary electronic musical instruments) having performance operation and musical sound signal generation functions, but also a performance operation section and musical sound signal generation section to provide music information processing functions. A general-purpose information processing apparatus such as a personal computer (PC) is included. The electronic musical instrument EM includes a central processing unit (CPU) 1, a random access memory (RAM) 2, a read only memory (ROM) 3, an external storage device 4, a performance operation detection circuit 5, a setting operation detection circuit 6, a display circuit 7, A sound source circuit 8, an effect circuit 9, a MIDI interface (I / F) 10, a communication interface (I / F) 11, and the like are provided, and these elements 1 to 11 are connected to each other by a bus 12.

  The CPU 1 constitutes a data processing unit DP together with the RAM 2 and the ROM 3 and executes various music information processing including performance processing using a clock by the timer 13 according to a predetermined control program including a performance processing program. The RAM 2 is used as a work area for temporarily storing various data necessary for these processes. For example, in a performance process, the RAM 2 stores an age information storage area for retaining currently designated age information. Is secured. Here, the age information is information indicating the degree of performance mode old and new in the age. The ROM 3 stores various control programs and control data necessary for executing these processes. For example, the control data includes “attack emphasis”, “EQ high frequency emphasis”, and “fast decay” tables. There are tables related to tone color control, velocity conversion tables, and the like.

  The external storage device 4 is not only a built-in storage medium such as a hard disk (HD) or a rewritable non-volatile semiconductor memory, but also a compact disk read only memory (CD-ROM), a flexible disk (FD), and a magneto-optical device. (MO) discs, digital multi-purpose discs (DVDs), small memory cards such as smart media (registered trademark), etc., and various portable external recording media, including arbitrary data including control programs and control data It can be stored in an external storage device (for example, HDD) 4.

  The performance operation detection circuit 5 constitutes a performance operation unit together with a performance operation element 14 such as a keyboard, detects a user's performance operation on the performance operation element 14, generates performance data corresponding to the performance content, and generates a data processing unit DP. To introduce. The setting operation detection circuit 6 detects a user setting operation (panel setting) with respect to a setting operation element 15 such as a key switch or a mouse provided on an operation panel of the electronic musical instrument EM, and sets setting data corresponding to the setting contents as data. Installed in the processing unit DP.

  For example, as shown in FIG. 1 (2), the operation panel has age representations “2000”, “1900”,... A slide-type age designation switch 15a capable of moving “1700” is provided, and the degree of performance mode can be designated by detailed continuous age information by the position of the switch 15a. In addition, the degree of old and new (old / new) may not be associated with the age, and may be represented by, for example, 0% (latest) to 100% (oldest). In addition, the present invention is not limited to this, and a parameter representing the degree of old and new is associated with a plurality of instrument tone types from the past to the present (instrument tone name), and when the tone type is selected by a user operation, the tone A parameter associated with the type may be indicated.

  The display circuit 7 controls the display / lighting contents of a display (display device) 16 such as a screen display LCD provided on the operation panel or the like and various indicators (not shown) according to a command from the data processing unit DP. Display assistance for the operations of the children 14 and 15 is performed. For example, when the age designation switch 15a is operated during performance processing, as shown in (2), the age corresponding to the position of the switch 15a is displayed on the display screen 16a. It is also possible to display the age notation or the movable age designation switch 15a on the screen 16a and move the switch 15a by operation of a setting operator such as a direction key or a mouse.

  The tone generator circuit 8 and the effect circuit 9 function as a tone signal generator SG that generates a tone signal having a predetermined tone characteristic according to tone generator data of a predetermined tone color, and are also simply referred to as “sound source”. The musical sound signal output from the sound source SG is sent to a sound system 17 including a D / A conversion unit, an amplifier, and a speaker. The sound source circuit 8 mainly has functions of a sound source data storage unit and a sound source data selection / reading unit, and the effect circuit 9 having the effect imparting DSP mainly has a function of a musical tone characteristic control unit. Software can be included.

  The sound source data storage unit of the sound source SG stores a plurality of sound source data sets respectively corresponding to a plurality of ages including the present age, and each sound source data set of each age is a plurality corresponding to a pitch or a pitch range. Sound source data (waveform data, feature parameters). The sound source data selection reading unit selects a sound source data set of the age specified by the age information generated based on the operation of the age specifying switch 15a from the sound source data storage unit, and performs the performance operation detection circuit 5 and the storage means (3 , 4), etc., sound source data having a predetermined pitch is read out as musical tone data according to the note number information in the performance data. Further, the musical tone characteristic control unit controls the musical tone characteristic of the read musical tone data according to the designated age, and generates a musical tone signal corresponding to the designated age. The sound system 17 generates a musical sound based on the musical sound signal generated by the sound source SG.

  The MIDII / F10 is connected to another electronic music device (external MIDI device) MD such as a MIDI keyboard, an external sequencer or a keyboard capable of handling music information in the MIDI format as with the electronic musical instrument EM, and is connected through the MIDII / F10. MIDI data can be exchanged with other electronic music apparatus MD. A communication network CN such as the Internet or a local area network (LAN) is connected to the communication I / F 11, and a control program is downloaded from an external server computer SV or the like, and performance data is stored in the storage device 4 to store the electronic musical instrument. Can be used in EM.

[Performance processing (main processing)]
In an electronic musical instrument according to an embodiment of the present invention, when a new or old degree (age) is designated by a user operation according to a performance processing program, sound source data (waveform data or A characteristic signal is selected, and a musical sound signal simulating a musical instrument sound of the age corresponding to the degree is generated based on the selected sound source data. In other words, this electronic musical instrument can reproduce a musical instrument performance of an old age by generating a musical sound signal based on performance data in a performance mode according to the specified old and new degrees. FIG. 2 is a flowchart showing an example of performance processing (main processing) according to one embodiment of the present invention.

  The main process in FIG. 2 is executed after the electronic musical instrument EM is turned on. When the main process starts when the power is turned on, the CPU 1 first performs an initial setting in step S1. In the initial setting, the age information is set to a predetermined initial value (for example, 2000s indicating the present age) and is held in the age information storage area of the RAM 2, and the setting content is displayed on the display screen 16a. Here, if the contents of the initial setting are acceptable, the process proceeds to step S2 as it is by the user operation on the OK button of the setting operator 15, and if another age information is to be set, the age setting switch 15a is used to set the age information. Then, the operation proceeds to step S2 by an OK button operation.

  In step S2, a voice (tone color) setting process related to setting of the timbre characteristic among the musical tone characteristics is performed. That is, the sound source data (waveform data, characteristic parameters) of a predetermined age is selectively selected from the sound source data storage means (Wm, Pm) according to the specified age represented by the age information set on the RAM 2 for the sound source SG. In accordance with the change of the timbre characteristic having a certain direction in the reading and evolution process of the musical instrument, the timbre characteristic of the read sound source data is controlled to instruct to generate the tone signal having the timbre characteristic of the specified age.

  After the voice setting process in step S2, a velocity conversion table related to the setting of the velocity characteristic among the musical sound characteristics is set in step S3. In other words, it can be assumed that the velocity characteristics of musical instruments have changed in a certain direction from the present age, so that the velocity characteristics of the specified ages according to the constant unidirectional changes from the velocity characteristics of modern instruments. Is converted, and this conversion algorithm is set as a velocity conversion table corresponding to the specified age. For example, in the case of a piano, as shown in FIG. 3, a modern (2000) piano is considered, and as the age gets older (→ 1900 → 1700), the dynamic range becomes narrower and the sensitivity is better. A velocity conversion table is set for each predetermined pitch or pitch range so that a light touch can be felt.

  After setting the velocity conversion table in step S3, it is determined in step S4 whether or not age information has been changed by a user operation of the age designation switch 15a. Here, when the age information is changed (S4 = YES), the age information on the RAM 2 is updated, and in steps S2 and S3, the voice setting process and the velocity setting process are performed according to the newly specified age information. If the age information is not changed (S4 = NO), the process proceeds to step S5.

  In step S5, it is determined whether or not a sound generation instruction has been given. The sound generation instruction is typically based on performance data based on the operation of the performance operator 14 such as a keyboard, but automatic performance data from the storage means (3, 4) by the internal sequencer function, an external MIDI device MD, or the like. May be performance data supplied through various I / Fs 10 and 11. If there is no sound generation instruction (S5 = NO), the process returns to step S4. If a sound generation instruction is issued (S5 = YES), the sound generation process of steps S6 and S7 is performed, and then the process returns to step S4.

  In the first step S6 of the sound generation process, the velocity information in the performance data is converted by referring to the velocity conversion table with the note number information in the performance data, and in the next second step S7, the note number information and the step S2 are converted. The sound source SG is instructed to generate sound based on the content set in the voice setting process and the velocity information converted in step S6. The sound generation command is indicated by, for example, a note-on message in MIDI performance data, and includes note number information and velocity information.

[First Embodiment of Voice (Tone) Setting Process]
In an electronic musical instrument according to an embodiment of the present invention, a voice (timbre) setting process for generating a tone signal having a timbre characteristic of a specified age by controlling a timbre characteristic of sound source data is executed in various embodiments. The 4 and 5 are diagrams for explaining the voice setting process [1] according to the first embodiment of the present invention. In the first embodiment, waveform data is used as sound source data for sound generation, and characteristics relating to a tone color such as attack characteristics, frequency characteristics, attenuation characteristics, etc. of waveform data of one age selected according to a specified age, By controlling according to various tone color control tables based on the specified age, the instrument tone color of the specified age is simulated. For example, the waveform data A of the age (for example, 1800) closest to the specified age (for example, 1760) is selected (Ws), and the waveform is determined based on the difference between the specified age and the age of the selected waveform data A. Envelope characteristics such as attack characteristics (attack emphasis) and decay characteristics (fast decay) of data A and frequency characteristics (EQ high frequency emphasis) are controlled (Eq, Eg, Vc, Lca). In the second and third embodiments to be described later, the sound source data of the two old and new ages (1800 and 1700) that are closest to the specified age (1760) are synthesized according to the difference between the specified age and each age. .

  In the first embodiment, the sound source SG is configured as shown in the functional block diagram of FIG. The sound source data storage unit and the sound source data selection / reading unit are each composed of a waveform set storage unit Wm and a waveform selection / reading unit Ws, and the tone characteristic control unit is an EQ (equalizer) unit Eq, an envelope generator unit Eg, a velocity conversion unit Vc, and a sound volume. It is comprised by the control part Lca. The waveform set storage unit Wm stores a plurality of sets of waveform data obtained by sampling instrument sounds of each age for each predetermined pitch or pitch range as a waveform set for each age. The waveform selection / reading unit Ws selects a waveform set of the age corresponding to the age information by the user operation of the age designation switch 15a from these waveform sets, and further, in the performance data from the waveform set of the selected age. The waveform data of the pitch corresponding to the note number information is read out.

  For example, the waveform sets A and B of 1800 and 1700 are stored in the waveform set storage unit Wm (the waveform set is not stored for 1701-1799), and the simulation model of FIG. As shown in the figure, when 1760 is designated by the user, the age evaluation function of the data processing unit DP obtains the difference (age difference) between the designated age = 1760 and the age of the waveform sets A and B. A waveform set selection signal for selecting the waveform set A of 1800 having the smaller difference is supplied to the waveform selection reading unit Ws. Therefore, the waveform selection reading unit Ws selects the waveform set A as the waveform set closest to the specified age, and reads the waveform data of the pitch corresponding to the note number from the waveform set A.

  The EQ unit controls the frequency characteristics of the waveform data of the waveform set A read by the waveform selection reading unit Ws according to the set value of the EQ gain based on the “EQ high frequency emphasis” table, and the instrument sound of the specified age is controlled. Simulate frequency characteristics. The envelope generator Eg controls the attack characteristics and attenuation characteristics of the waveform data through the volume control section Lca according to the set values of the attack (level) and decay (time) based on the “attack emphasis” table and the “fast decay” table, respectively. Then, the attack characteristic and the attenuation characteristic of the musical instrument sound of the specified age are simulated.

  FIG. 5 is a diagram for explaining control of attack characteristics, frequency characteristics, and attenuation characteristics by the “attack emphasis” table, “EQ high frequency emphasis” table, and “fast decay” table. The “attack emphasis” table is a table that associates the “age difference” between the specified age and the age of the selected waveform set with the “attack (level) setting value” for the envelope generator section Eg that gives the volume change. Yes, in the case of a piano, an attack characteristic as shown in FIG. With the “attack emphasis” table, as indicated by “a” to “e” in the figure, the attack is emphasized as the specified age becomes older than the age of the waveform set. That is, the solid line “c” in FIG. 5A represents the attack characteristics of the uncontrolled waveform set (designated age), and the attack is emphasized as broken lines “d” and “e” as the age gets older. The attack characteristics are weakened as indicated by alternate long and short dash lines “b” and “a”. Although only the attack level Ga is changed here, the attack time or the like may be changed. Further, more complicated changes may be made.

  The “EQ high-frequency emphasis” table is a table that associates the “age difference” between the specified age and the age of the selected waveform set with the “set value of EQ gain” for the EQ section Eq. A frequency characteristic as shown in FIG. According to the “EQ high frequency emphasis” table, as shown in the figure, as the specified age becomes older than the age of the waveform set, the EQ in the high frequency region (high frequency) side as “a” to “e” shown in the figure. A frequency f-EQ gain Gb characteristic in which the gain Gb increases and the EQ gain Gb decreases on the low frequency region (low region) side is set, and the high region is emphasized. That is, the solid line “c” in FIG. 5 (2) represents a flat gain characteristic of a specified age that is not controlled. As the age gets older, the gain is controlled as indicated by the broken lines “d” and “e”, and the age is new. The gain is controlled as indicated by alternate long and short dash lines “b” and “a”. Here, only the gain Gb is changed, but the peak frequency position, Q, and the like may be changed. Further, more complicated changes may be made.

  The “decay early” table is a table that associates the “age difference” between the specified age and the age of the selected waveform set with the “decay (time) setting value” for the envelope generator Eg. , Giving decay characteristics as shown in FIG. The “fast decay” table speeds up decay as the specified age is older than the age of the waveform set. That is, the solid line “c” in FIG. 5 (3) represents the decay characteristics of the specified age that is not controlled. As the age gets older, the decay times tj and ti are shortened as shown by the broken lines “d” and “e”, and the decay is accelerated. As the age becomes new, the decay time is lengthened as indicated by alternate long and short dash lines “b” and “a”. Here, only the decay times ti, tj,... From the start of the decay are changed, but the decay level Gc and the like may be changed. Further, more complicated changes may be made.

  As described above (FIG. 2: S3, S6), the velocity conversion unit Vc executes a function of converting the velocity information in the performance data according to the velocity conversion table, and converts the converted velocity information to the volume control unit Lca. send. The volume control unit Lca controls the volume level of the waveform data input from the EQ unit Wq based on the volume change information from the envelope generator unit Eg and the converted velocity information from the velocity conversion unit Vc. The controlled waveform data is output to the sound system 17 as a musical sound signal. In the first embodiment, a musical instrument sound of a specified age is obtained from one waveform set. Therefore, the simplest form can be implemented with a configuration having only one waveform set in the evolution process of the instrument.

  The voice setting process [1] of the first embodiment shown in FIG. 4 (1) is executed in step S2 in the main process shown in FIG. 2, and performs settings for controlling the tone characteristics related to the tone color as described above. . In the first step V11 of the voice setting process [1], the waveform set of the age closest to the specified age information is selected from the waveform set group used for sound generation. Here, when the specified age information matches the age of the waveform set stored in the waveform set storage unit Wm, the processing of steps V12 and V13 is immediately passed to step V14 to select the waveform set. The sound source SG is set so as not to control the attack characteristic, the frequency characteristic, and the attenuation characteristic, and then the process returns to step S3 of the main process.

  On the other hand, if the specified age does not match the age of the waveform set in the waveform set storage unit Wm, the processing proceeds to step V14 after performing the processing of steps V12 and V13. In step V12, the age difference between the specified age and the age of the selected waveform set is obtained, and in the next step V13, the value of the age difference is set based on the various tone color tables associated with the selected waveform set. Each assigned setting value is obtained. Here, the various timbre tables are the above-mentioned “attack emphasis” table, “EQ high frequency emphasis” table and “fast decay” table, and the attack (level), EQ gain and decay (time) corresponding to the age difference. Is set. In step V14, the set value obtained in step V13 is set as a sound source, and then the process returns to step S3 of the main process.

[Second Embodiment of Voice (Tone) Setting Process]
In the electronic musical instrument according to one embodiment of the present invention, according to the voice (timbre) setting processing [2] and [3] according to the second and third embodiments, a sound source data set of a plurality of ages is selected according to the specified age, It is possible to simulate instrument sounds of the specified age by synthesizing sound source data between selected sound source data sets of a plurality of ages. FIG. 6 is a diagram for explaining the voice setting process [2] according to the second embodiment of the present invention. In the second embodiment, waveform data is used as sound source data for sound generation. By selecting a waveform set of two ages according to a specified age and mixing the waveform data of both waveform sets, the instrument tone color of the specified age is selected. To simulate.

  In the second embodiment, the sound source SG is configured as shown in the functional block diagram of FIG. The sound source data storage unit and the sound source data selection / reading unit are respectively composed of a waveform set storage unit Wm and first and second waveform selection / reading units Ws1, Ws2, and the tone characteristic control unit is a mixer unit Mx, a velocity conversion unit Vc, and It is comprised by the volume control part Lcb. Similar to the first embodiment, the waveform set storage unit Wm stores a plurality of sets of waveform data obtained by sampling instrument sounds of each era for each predetermined pitch or pitch range as waveform sets of each era. The first and second waveform selection / reading units Ws1 and Ws2 select a waveform set of two ages corresponding to the age information by the user operation of the age designation switch 15a from these waveform sets, and are further selected. The waveform data of the pitch corresponding to the note number information in the performance data is read from the waveform set of each age.

  For example, waveform sets A and B of 1800 and 1700 are stored in the waveform set storage unit Wm (the waveform set is not stored for 1701-1799 years), and the schematic diagram of the simulation in FIG. As shown, when 1760 is specified by the user, the waveform set A of 1800 and 1700, which is the age closest to the new and old two directions with respect to the specified age = 1760, is specified by the age evaluation function of the data processing unit DP. , B to be selected from the waveform set storage unit Wm, the first and second waveform selection selection signals Ws1, Ws2 are given to the first and second waveform selection read-out units Ws1, Ws2, and the age and designation of both waveform sets A, B are specified. The age difference 1 and 2 between the age is obtained, and the mixing ratio given to the mixer unit Mx is calculated from the obtained age difference 1 and 2. This mixing ratio is set so that, for example, the ratio of the waveform sets A and B components in the waveform data output from the mixer unit Mx is “age difference 2: age difference 1”.

  The first and second waveform selection / reading units Ws1, Ws2 select the first and second waveform sets A and B of the age closest to the new and old directions from the specified age according to the first and second waveform set selection signals. The waveform data of the pitch corresponding to the note number is read from the waveform set A, and the mixer unit Mx mixes both the waveform sets A and B according to the given mixing ratio. This simulates the timbre characteristics of the instrument sound of the specified age. Note that the EQ processing, attack processing, and decay processing described in the first embodiment may be performed simultaneously.

  As described above (FIG. 2: S3, S6), the velocity conversion unit Vc executes a function of converting the velocity information in the performance data in accordance with the velocity conversion table, and the converted velocity information is sent to the volume control unit Lcb. The sending and volume control unit Lcb controls the volume level of the waveform data input from the mixer unit Mx based on the converted velocity information, and outputs the volume-controlled waveform data to the sound system 17 as a musical sound signal.

  The voice setting process [2] of the second embodiment of FIG. 6A is executed in step S2 in the main process of FIG. 2, and performs the setting for simulating the timbre characteristics described above. In the first step V21 of the voice setting process [2], the first waveform selection / readout unit Ws1 selects the first waveform set of the age that is newer and closest to the specified age information from the waveform set group used for sound generation. Instruct. If the specified age coincides with the age of any waveform set stored in the waveform set storage unit Wm, the first waveform selection reading is performed so as to select the waveform set corresponding to the sound source SG. By simply instructing the unit Ws1 and instructing the mixer unit Mx to pass the waveform data of the waveform set as it is, the process of steps V22 to V25 is passed through and the process immediately returns to step S3 of the main process.

  After selecting the first waveform set in step V21, the process proceeds to step V22, where the age difference 1 between the specified age and the age of the first waveform set is obtained, and the process proceeds to step V23. In step V23, the second waveform selection reading unit Ws2 is instructed to select a second waveform set older than the specified age information from the waveform set group used for sound generation. Determine the age difference 2 between the generated age and the age of the second waveform set. In step V25, the mixing ratio is obtained from the age difference 1 and the age difference 2, set in the mixer unit Mx, and then the process returns to step S3 of the main process (FIG. 2).

[Third Embodiment of Voice (Tone) Setting Process]
FIG. 7 is a diagram for explaining the voice setting process [3] according to the third embodiment of the present invention. In the third embodiment, a characteristic parameter for generating a musical instrument sound waveform is used for sound source data for sound generation. By selecting waveform data of two ages according to a specified age and mixing these waveform data, The instrument tone color of the designated age can be simulated, and the sound source SG is configured as shown in the functional block diagram of FIG.

  The sound source data storage unit and the sound source data selection / reading unit are respectively composed of a parameter set storage unit Pm and first and second parameter selection reading units Ps1, Ps2, and the tone characteristic control unit is a re-synthesis unit Rc and a velocity conversion unit Vc. And a volume control unit Lcb. In the parameter set storage unit Pm, a plurality of feature parameters for each predetermined pitch or pitch range obtained by analyzing instrument sound waveforms of each age are stored as a plurality of parameter sets for each age. The feature parameter is, for example, vector data representing a temporal fragment (very short waveform) obtained by cutting out a characteristic portion of a sampled musical sound waveform and how to transform or combine them for resynthesis, or , A parameter representing a value (for example, time, phase, intensity, etc.) relating to a partial sound obtained by time-frequency analysis (for example, short-time FFT, wavelet transform, etc.)

  The first and second parameter selection / reading units Ps1, Ps2 correspond to age information by user operation of the age designation switch 15a from these parameter sets, like the waveform selection / reading units Ps1, Ps2 of the second embodiment. The parameter sets of the two ages to be selected are selected, and the pitch parameter corresponding to the note number information in the performance data is read out from the selected parameter sets of each era. For example, the parameter sets A and B of 1800 and 1700 are stored in the parameter set storage unit Pm (the parameter sets are not stored for 1701-1799 years). When 1760 is designated, the first and second parameter sets A and B for the years 1800 and 1700, which are the ages closest to the new and old directions with respect to the designated age, should be selected from the parameter set storage unit Pm. The parameter set selection signal is supplied to the first and second parameter selection reading units Ps1, Ps2, and the age differences 1, 2 between the age of the parameter sets A, B and the specified age are obtained, and the obtained age difference is obtained. From 1 and 2, the interpolation ratio given to the re-synthesis unit Rc is calculated.

The first and second parameter selection reading units Ps1 and Ps2 select the first and second parameter sets A and B of the age closest to the old and new directions from the specified age according to the first and second parameter set selection signals. The pitch parameter corresponding to the note number is read from the parameter set A, and the re-synthesis unit Rc interpolates the feature parameters of both parameter sets A and B according to the given interpolation ratio, and uses the interpolated parameters. By generating (morphing) intermediate musical tone data by so-called “analysis / synthesis processing”, the timbre characteristics of the musical instrument sound of the specified age are simulated. For example, as shown in Patent Document 1, such analysis and synthesis processing uses the above-described vector data as feature parameters, and re-synthesizes based on the interpolated parameters to generate intermediate musical sound waveform data. Alternatively, the partial sound parameters described above are used as characteristic parameters, and the interpolated parameters are inversely transformed and re-synthesized to generate intermediate musical sound waveform data.
JP 2001-1000075 A

  As described above (FIG. 2: S3, S6), the velocity conversion unit Vc executes a function of converting the velocity information in the performance data in accordance with the velocity conversion table, and the converted velocity information is sent to the volume control unit Lcb. The sending and volume control unit Lcb controls the volume level of the waveform data input from the re-synthesis unit Rc based on the converted velocity information, and outputs the volume-controlled parameter to the sound system 17 as a musical sound signal.

  The voice setting process [3] of the third embodiment of FIG. 7A is executed in step S2 in the main process of FIG. 2, and performs settings for simulating the timbre characteristics described above. In the first step V31 of the voice setting process [3], the first parameter selection reading unit Ps1 selects the first parameter set of the latest age that is newer than the specified age information from the parameter set group used for sound generation. Instruct. If the specified age matches the age of any parameter set stored in the parameter set storage unit Pm, the first parameter selection reading unit Ps1 is instructed to select the parameter set, and the parameter By simply instructing the mixer unit Mx to re-synthesize in accordance with the set parameters, the process of steps V32 to V35 is bypassed and the process immediately returns to step S3 of the main process.

  After selecting the first parameter set in step V31, the process proceeds to step V32, where the age difference 1 between the designated age and the age of the first parameter set is obtained, and the process proceeds to step V33. In step V33, the second parameter selection / readout unit Ps2 is instructed to select a second parameter set older than the specified age information from the parameter set group used for sound generation. Determine the age difference 2 between the set age and the age of the second parameter set. In step V35, the interpolation ratio is obtained from the age difference 1 and the age difference 2, and is set in the re-synthesis unit Rc. Thereafter, the process returns to step S3 of the main process (FIG. 2).

[Various Embodiments]
The preferred embodiment of the present invention has been described in detail with reference to the drawings. However, this embodiment is merely an example, and various modifications can be made without departing from the spirit of the present invention. For example, the tuning may be changed to one that has been mainstream for each age.

  Further, when the setting operator 15a is operated in the age setting, it may be determined that the age information has been changed without using the OK button, and the voice setting process and the velocity conversion table may be set. Furthermore, the age setting may be stored in an external storage device in a nonvolatile manner, and the setting may be recalled as an initial setting when the power is turned on next time.

1 is a system configuration schematic diagram of an electronic musical instrument according to an embodiment of the present invention. It is a flowchart showing the main process by one Example of this invention. It is a figure for demonstrating the characteristic of the velocity conversion table in one Example of this invention. It is a figure for demonstrating the voice setting process and sound source function by 1st Embodiment of this invention. It is a figure for demonstrating the control characteristic of the timbre by the various tables for voice setting in 1st Embodiment of this invention. It is a figure for demonstrating the voice setting process and sound source function by 2nd Embodiment of this invention. It is a figure for demonstrating the voice setting process and sound source function by 3rd Embodiment of this invention.

Explanation of symbols

16a; 15a Display screen and operator for specifying the age,
Wm; Pm Sound source data set (waveform set, parameter set) storage unit,
Ws, Ws1, Ws2; Ps1, Ps2 Sound source data (waveform, parameter) selection reading unit.

Claims (6)

Sound source data storage means for storing sound source data of multiple ages,
Old / old degree designating means for designating old / new degree according to user operation,
Sound source data selection means for selecting sound source data of a predetermined age from sound source data of a plurality of ages stored in the sound source data storage means according to the degree designated by the old and new degree designation means;
And a simulation means for generating a musical sound signal simulating an instrument sound of the age corresponding to the degree specified by the old and new degree designation means based on the sound source data selected by the sound source data selection means. Electronic musical instrument.   2. The electronic musical instrument according to claim 1, wherein the new / old degree designating means designates a new / old degree by an age. The sound source data storage means stores waveform data obtained by sampling instrument sounds of each age as sound source data,
The simulation means controls at least one of the attack characteristic, the frequency characteristic and the attenuation characteristic of the waveform data selected by the sound source data selection means based on the degree designated by the old / old degree designation means, The electronic musical instrument according to claim 1, wherein the musical instrument sound of the age corresponding to the degree is simulated. The sound source data selecting means selects sound source data of a plurality of ages according to the degree specified by the old and new degree specifying means,
The simulation means synthesizes sound source data of a plurality of ages selected by the sound source data selection means based on the degree designated by the old / old degree designation means, and simulates instrument sounds of the ages corresponding to the degree The electronic musical instrument according to claim 1 or 2, characterized in that:   The electronic musical instrument according to any one of claims 1 to 4, wherein the simulation means changes the tone intensity of the musical tone signal based on the degree specified by the old / new degree designation means. Provided with sound source data storage means for storing sound source data of a plurality of ages,
Old / old degree specification step for specifying the old / new degree according to user operation,
A sound source data selection step for selecting sound source data of a predetermined age from sound source data of a plurality of ages stored in the sound source data storage unit according to the degree specified in the old / new degree specification step;
Based on the sound source data selected in the sound source data selection step, a performance process that executes a procedure comprising a simulation step that generates a musical sound signal that simulates a musical instrument sound of the age corresponding to the degree specified in the old and new degree specification step program.

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