JP4042753B2 - Electronic musical instruments - Google Patents

Description

  The present invention relates to an electronic musical instrument that generates a key touch signal during a keystroke during a key press operation, for example, by a key switch disposed on a keyboard, and controls a musical sound based on the touch signal.

  2. Description of the Related Art Conventionally, in an electronic keyboard instrument, as disclosed in, for example, Japanese Patent Publication No. 8-10399, there is a technique for controlling a tone by sensing a key position in the entire stroke of a key stroke. According to such a technique, for example, a variety of expressions can be achieved as compared with a case where an initial touch is obtained only from a time difference between two contact switches of one key switch and a musical tone is controlled.

  For example, Japanese Patent Laid-Open No. 7-199932 discloses a technique for discriminating a rendition style based on non-linearity of the time variation of the key stroke by sensing in the entire stroke of the key stroke.

  Also, using two time difference data by three contact switches, the tone volume is controlled by the shallower (previous) time difference data of the keystroke, and the tone is controlled by the deeper (later) time difference data. There is also.

  By the way, the piano is sounded by a transmission mechanism of keys, actions, hammers and strings. For this reason, in the case of a weak hit, it feels like a small sound is heard around the end of pressing. In addition, in the case of a strong hit, there are cases where the initial speed to the key is high and the sound is strong, and there is a case where the sound is strong when pressed. Also, if the player hits the piano softly, the player knows that the string will be struck at the end of the press, so there is no sense of incongruity in terms of timing. Because there is a delay, even if you think you played hard and played at just timing, you feel that the pronunciation is a little behind the keystroke action.

  In this way, the strength of the transmission mechanism and the key causes a subtle delay in pronunciation, and in particular, beginners' expression and articulation may be reduced.

  In the pipe organ, there is some play at the beginning of the stroke of the key depression, and then the feel of the valve is transmitted when it is depressed a little. The resistance becomes the largest at the moment when the valve is opened, and the sound generation starts from this point. That is, substantial pronunciation seems to be delayed from the timing of the key depression. This tendency is due to the sound generation mechanism of the instrument, and even for wind instruments such as the horn, bassoon, trombone, and viola dagamba, medium-sized and higher stringed instruments are similarly delayed in their performance. Become.

  Therefore, a professional performer who plays such an instrument naturally learns the characteristics of the instrument and makes it more intimate (or forward) than when it should be pronounced, such as when performing ensemble, chorus, or ensemble performance. The performance action is made continuous. For example, when a plurality of musical instruments are simultaneously pronounced (tuty part) after a plurality of musical instruments are rested at the same time as in orchestra performance, it is a showcase during performance, and it is important to match the sounding timing.

On the other hand, since professional players know the characteristics of specialized musical instruments in this way, there are cases where it becomes an obstacle when playing other musical instruments. For example, a pipe organ player plays in a hurry, so when playing the piano with the same keyboard instrument, the pronunciation timing tends to be faster. Conversely, when a piano player plays a pipe organ, the sounding timing is delayed. If a rush performance or a delayed performance is repeated for each portion of the tutty, a considerable tempo difference may occur near the beginning and end of the performance, and the song may not be the song intended by the composer.
Japanese Patent Publication No. 8-10399 Japanese Patent Laid-Open No. 7-199932

  However, conventionally, the sound generation timing is not switched and controlled according to the strength of the key touch. The present invention has been made in view of the above points, and by controlling the sound generation timing in accordance with the key touch of the key press, early sounding (hereinafter referred to as “rush sounding”) and normal sounding ( Hereinafter, it is an object to provide an electronic musical instrument that can be switched to "non-protrusive pronunciation"), increase expressive power and articulation, make it easy to match the timing of pronunciation, and perform easily.

According to a first aspect of the present invention, there is provided an electronic musical instrument that includes a timbre setting means for setting a timbre, a key that is operated by pressing and releasing keys , and a first key touch signal at a shallow position in the keystroke when the key is pressed. A key touch sensor means comprising: a first touch sensor for generating a second key sensor, and a second touch sensor for generating a second key touch signal at a deep position in the keystroke; and a key generated by the key touch sensor means a tone control means for controlling a musical tone comprising at tone the set based on the touch signal, and performer information input means for inputting player information, depending on the player information input by the player information input means Sounding immediately after the first key touch signal generated at the shallower key stroke is obtained, or sounding / non-sounding according to the second key touch signal generated at the deeper keystroke Turn off control Characterized by comprising a sound generation timing control means for changing.

  According to the electronic musical instrument of the first aspect configured as described above, it is possible to perform a plunging sound that is pronounced as soon as the first key touch signal generated at a shallow keystroke is obtained. Whether to sound or to control sound / non-sound according to the second key touch signal generated in the deeper key stroke can be set according to the player information. When sounding / non-sounding is controlled according to the second key touch signal generated in the deeper key stroke, the second key touch signal generated in the deeper key stroke exceeds the second threshold. When the key touch signal is less than the second threshold, the sound can be turned off. As a result, in the case of pronunciation, non-intrusive pronunciation can be performed, and in the case of a key pressing operation that does not produce pronunciation, erroneous pronunciation due to exploration and the like can be prevented.

  The player information includes, for example, the timing of the key press operation of the performer, such as whether the performer's habit, beginner (amateur) or advanced player (professional), piano player or pipe organ player, Information that takes into account differences. Then, it is possible to set whether or not to rush sound according to the difference in timing. For example, since the beginner tends to delay the timing of the key pressing operation compared to the advanced user, the user is set to perform the rush sounding. Therefore, for example, even beginners have an increased expressive power and articulation, and the electronic musical instrument is easy to play. In addition, since the piano player has a later timing of the key press operation than the pipe organ player, if the sound of the pipe organ is struck in response to the key touch signal of the shallow switch, the actual sounding timing will be Becomes a pipe organ player. Also, pipe organ players will be able to press the keys earlier than piano players, so if you make a non-intrusive sound in response to the key switch signal of the deep switch, the actual sounding timing will be like a piano player. . Therefore, the electronic musical instrument is easy to play, and in particular, it is easy to perform orchestra performance including ensemble performance and chorus with other musical instruments.

  In the specification and drawings of the present application, an expression consisting of a set of “below threshold” and “exceeding a threshold” is equivalent to an expression consisting of a set of “below threshold” and “above threshold”.

  According to the electronic musical instrument of the first aspect, it is possible to generate a plunging sound in response to a key depression operation, and to control the sounding / non-sounding according to the key touch signal generated at the deeper keystroke or the plunging sounding. Can be set according to the player information, so it is possible to set whether or not to perform the rush sound according to the difference in the timing of the player's key press operation. The electronic musical instrument becomes easy to play. Also, a piano player can make the actual pronunciation timing like a pipe organist when playing a pipe organ tone, and a pipe organ player can play and play the actual pronunciation timing like a piano player when playing a piano tone, for example. It becomes an easy electronic musical instrument.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an electronic musical instrument according to an embodiment of the present invention. The electronic musical instrument of this example includes a CPU 1, ROM 2, RAM 3, pressed / released key detection means 4, switch detection means 5, display control means 6, sound source means 7, etc., and these elements 1 to 7 are connected via a bus 8. Are connected to each other.

  The CPU 1 that controls the entire system includes a clock generator 9 that generates a clock for driving the system and an interrupt processing clock for obtaining touch data (key touch signal). Then, the CPU 1 performs various controls according to a predetermined program, and mainly performs the sound generation timing control to be described later. The ROM 2 stores a control program, and various processing programs related to sound generation control according to key switches (shallow switch and deep switch) of the key press detecting means 4 described later, a drop table 1, a drop table 2, and a key described later. Various necessary tables such as a conversion table TBL1 and a conversion table TBL2 for converting the contact time difference of the switch into touch data (velocity value) and various control data are stored.

  The RAM 3 stores data and parameters required for processing by the CPU 1 and is used as a work area for temporarily storing various registers and flags, various data being processed, and the like. For example, in the RAM 3, buffers such as a key buffer KEYBUF and a flag buffer TCBUF, a counter area, a register, a temporary memory area, and the like are secured. In the key buffer KEYBUF, the key code KC (n), key event type KV (n), touch data Von (n), Voff (n + 16), etc. are temporarily stored corresponding to each tone generation channel n, and stored in the flag buffer TCBUF. The contact time difference measurement mode flag TC (n) is temporarily stored corresponding to each channel n.

  Also, in the RAM 3, a software counter area for counting contact time differences Ton (n) and Toff (n + 16) by key switches (shallow switch and deep switch) for obtaining press / release key touch information is set. Yes. Further, the temporary memory area is provided with various registers, a rate register for storing the attenuation rate, and the like. The channel number “n” is an integer from “0” to “15”, for example. Correspondingly, there are 32 channels of numbers “0” to “31” on the sound source means 7 side. For example, in the case of a piano tone, n channels and n + 16 channels are assigned for key-on and key-off, respectively.

  The pressed / released key detection means 4 is built in a performance operating device including a keyboard device 10 and is connected to the CPU 1 and the like via a bus 8. The panel switch 11 connected to the switch detection means 5 is a character key for inputting personal data as player information, a P data key corresponding to personal data, a numeric keypad for inputting numerical values, a tone color selection key, various effects, etc. Various operation keys for setting performance conditions are provided on the operation panel. A display 12 including a liquid crystal panel and various indicators is connected to the bus 8 via the display control means 6 and is juxtaposed with various operators on the operation panel of the panel switch 11. The display 12 can display various setting screens and various operation buttons, and can perform various settings and displays on the display screen.

  The sound source means 7 includes a waveform ROM 70 that stores waveform data consisting of musical tone waveform peak value (instantaneous value) data, and a transmission / reception register 71 that performs transmission / reception with the CPU 1. The waveform ROM 70 is key-on. It consists of a first sound source including a key-on waveform used for generating a musical sound that is sometimes generated, and a second sound source including a key-off waveform used for generating a musical sound generated at the time of key-off corresponding to, for example, a piano tone color.

  When the keyboard 10 is operated, the CPU 1 performs sound generation / mute processing by setting various data such as key code, touch data (velocity value), key-on / key-off, etc. to the corresponding channel of the sound source means 7. The sound source means 7 performs processing of each channel by time division multiplexing processing, reads a waveform from the waveform ROM 70 based on various data set from the CPU 1, performs a predetermined calculation based on touch data, etc., and performs a digital musical tone signal. Is generated. The sound system 13 performs D / A conversion, amplification, etc. of the digital musical tone signal to generate a musical tone corresponding to the key operation. Note that an effect circuit constituted by a DSP or the like is also included in the sound system 13.

[Keyboard Device] Next, the key switch constituting the sensor unit of the keyboard device and the key touch sensor means in the embodiment will be described. FIG. 2 shows the keyboard device 10 according to the embodiment, and represents one means for taking key operation information into the electronic musical instrument system. In this figure, the keyboard device 10 is very schematically represented when the non-key-pressed state is viewed from the side.

  The keyboard device 10 includes a number of keys 21 including a white key 21 </ b> W and a black key 21 </ b> B, and a mass body (hammer) 43 that is driven in conjunction with the key 21. On the shelf 22 of the musical instrument, a main key support portion 23A and a sub key support portion 23B are fixed, and both support portions 23A and 23B constitute a key support portion 23. The main key support portion 23A is fixed with fulcrum pins Wf and Bf, the white key 21W is rotatably supported by the fulcrum pin Wf, and the black key 21B is rotatably supported by the fulcrum pin Bf. Key guide portions WG and BG projecting from the sub-key support portion 23B are provided in the front portion (left side in the figure) of the key 21, and the key movement when the black and white keys 21W and 21B are pressed and released separately is provided. It is configured to be guided by the key guide portions WG and BG. Further, the sub key support portion 23B is provided with a white key lower limit stopper portion WS and a black key lower limit stopper portion BS.

  In the key support portion 23, both the support portions 23A and 23B are coupled in a ladder shape when viewed from the key pressing direction by a connection portion LD in which the main key support portion 23A and the sub key support portion 23B are fixed and integrally formed. A shallow switch 47 that is driven by a key on the substrate SB1 provided on the shelf plate part 22 via the support parts B1 and B2 is located above the connection part LD and below the key 21. It is arranged. Behind the key 21, a mass body support portion 41 having a fulcrum portion Mf is fixed to the shelf plate portion 22, and a fulcrum portion mf of a resin mass body 43 including weights W1 and W2 is rotated around the fulcrum portion Mf. The mass body 43 is held by the support portion 41. In the upper part of the support part 41, an upper limit stopper US is provided on the front side, and a stopper part 41S is provided on the rear side.

  The mass body 43 has a weight W1 distributed in the front part and a weight W2 dispersed in the rear part, and is arranged so as to be driven by the mass body drive part WA on the rear upper surface of the key 21 via the force transmission part 44. The The force transmission unit 44 transmits a force to the mass body 43 when the key is depressed, and also serves as a fine adjustment screw for the sound generation position. The mass body drive unit WA of the key 21 has a smooth surface. Further, a substrate SB2 is placed on the upper surface of the support portion 41 below the mass body 43 and above the mass body support portion 41, and a depth switch driven by the mass body 43 on the substrate SB2. 48 is arranged. When the key 21W (21B) is not pressed, the rear part is in contact with the upper limit stopper unit US and is stationary. However, when the key is pressed, the key 21W (21B) is in contact with the stopper parts WS and BS in the front. The lower end of the rear part comes into contact with the stopper part 41S. At this time, since the collision of the mass body 43 is reduced by the stopper portion 41S, mechanical noise is reduced.

  With such a configuration, when the key is pressed downward as indicated by the arrow on the left side of the figure, the rear side of the key 21 and the front side of the mass body 43 rotate upward as indicated by the arrow a1 in the center of the figure, and the mass The rear side of the body 43 rotates downward as indicated by an arrow a2 on the right side of the figure. When the key is released, the key 21 and the mass body 43 are each rotated in the direction opposite to the arrow and returned to the illustrated position.

[Key Switch] In this embodiment, the key press stroke is detected by the shallow switch 47 and the deep switch 48. In the example of FIG. 2, first and second actuator portions 45, 46 are provided on the lower surface of the key 21 and the mass body 43, the shallow switch 47 is driven by the first actuator 45, and the depth switch 48 is driven by the second actuator portion 46. Drive.

  Here, the arrangement between the actuator portions 45 and 46 and the switches 47 and 48 is such that the first actuator portion 45 first comes into contact with the shallow switch 47 in the key pressing stroke, and the second actuator is delayed after that. The portion 46 is in contact with the depth switch 48. Each of the shallow switch 47 and the deep switch 48 is a contact time difference type two-make touch response switch having two contacts a, b; c, d made of rubber, and each contact a, b; c, d performs a closing (on) operation and an opening (off) operation on a fixed contact (not shown) on the substrates SB1 and SB2, and a stroke difference is set between the closing operation and the opening operation.

  That is, in the shallow switch 47, for example, when the first actuator unit 45 contacts with a key pressing stroke, first, the first contact a of the shallow switch 47 is closed (turned on), and then the shallow switch 47 The two contacts b are closed. Also in the depth switch 48, for example, when the second actuator portion 46 comes into contact with the key pressing stroke, first, the first contact c of the depth switch 48 is closed, and then the second contact d of the depth switch 48 is closed. To do. In the key release stroke, on the contrary, the contact d → c of the deep switch 48 and the contact b → a of the shallow switch 47 are opened (off) in this order.

  FIG. 3 is a diagram for explaining the function of the key switch in the embodiment. Each key 21 of the keyboard device 10 has a maximum from the key release (non-key press) position S corresponding to the state of FIG. 2 to the deepest maximum key press position E, for example, at the finger press position (for example, key tip). It is configured to be able to be displaced in the vertical direction by 10 mm. On the other hand, the first and second contacts a to d of the key switch, that is, the shallow switch 47 and the depth switch 48 are at the key positions A to D according to the key pressing direction operation of the key 21, as shown in FIG. It is closed (turned on), and is released (turned off) at the key positions D to A according to the key release direction operation of the key 21.

  For example, when the key 21 is depressed from the key release (non-key depression) position S until the maximum key depression position E is reached, first, in the downward key depression stroke, the shallow switch (SW) 47 is switched at the key position A. The first contact a is closed (ON) to start the ON section of the shallow switch (SW) 47. Next, when the key position B is reached, the second contact b of the shallow switch (SW) 47 is closed. The ON section of the shallow switch (SW) 47 ends. Further, at the key position C, the first contact c of the depth switch (SW) 48 is closed, and the ON section of the depth switch (SW) 48 starts, and at the key position D, the first switch c of the depth switch (SW) 48 starts. The two contacts d are closed, and the ON section of the deep switch (SW) 48 ends. Thereafter, the key 21 reaches the maximum key pressing position E. In the following description, “switch” is appropriately expressed as “SW”.

  Conversely, in the key release stroke in which the key 21 moves upward from the maximum key pressing position E, first, at the key position D, the second contact d of the deep SW 48 is opened (off), and the ON section of the deep SW 48 starts. Next, when the key position C is reached, the first contact c of the deep SW 48 is opened, and the ON section of the deep SW 48 ends. Further, at the key position B, the second contact b of the shallow SW 47 is opened to start the ON section of the shallow SW 47, and at the key position A, the first contact a of the shallow SW 47 is opened and the shallow SW 47 is turned off. The ON section of the shallow SW 47 ends. Then, the key 21 returns to the key release (non-key press) position S, and the full key release key stroke is completed.

  In this example, the four contacts a to d are always checked for closing (on) / opening (off), and by measuring the time and direction of the on / off state change, a total of eight types of on (closing) ) And off (release) events are generated. That is, the first and second contacts a and b of the shallow SW 47 and the first and second contacts c and d of the deep SW 48 are turned on in four types (ON) by closing (ON) at the positions A to D accompanying the key depression. (Closed) event is generated, and four types of off (open) events are generated by opening (off) at positions D to A accompanying the key release. And in order to produce | generate touch data, the time difference (time interval) of the event between the predetermined contacts among each contact a-d is measured.

  The mass body 43 is set between the position C and the position D by setting a rebound limit position RL when the mass body 43 rebounds by receiving the lower end of the rear end thereof with the stopper 41S when the key is depressed. Occurrence of chattering due to rebounding can be suppressed.

[Configuration of Control Data] FIGS. 18 and 19 show the format of the flag buffer and counter area secured on the RAM 3, and FIG. 18 (A) shows the sound generation information and mute for each channel (CH) n. The format of the key buffer KEYBUF for storing information is shown. FIG. 18B shows the details of the key event type data KV (n). FIG. 19A shows the format of the flag buffer TCBUF for storing the time difference measurement mode flag TC (n) for each channel (CH) n, and FIG. 19B shows the on-time difference for each channel n. It represents the format of the counter area for measuring Ton (n) and off-time difference Toff (n + 16).

  As shown in FIG. 18 (A), the key buffer KEYBUF has a key code for each of the sounding channel numbers n in the leftmost channel number area NR (in this example, a total of 16 from “0” to “15”). Key code storage area CR for storing data KC (n), key event type storage area VR for storing key event type data KV (n), key on touch for storing key on touch data Von (n) The storage area VnR and the key-off touch storage area VfR for storing the key-off touch data Voff (n + 16).

  The key event type data KV (n) is data for distinguishing key events, and is represented by 3 bits, for example. That is, in each 3-bit data, as shown in FIG. 18B, the third bit represents the switch type, and “0” = depth switch 48 and “1” = shallow switch 47. The second bit represents the contact type, and “0” = second contact (b or d) (2M) and “1” = first contact (a or c) (1M). Further, the first bit represents the event type, and indicates “0” = off (open) and “1” = on (closed).

  For example, in the example of FIG. 18 (A), the key event type data KV (0) = “101” B in the 0th channel (channel number = 0) (the symbol “B” is a numerical value immediately before the binary number) Indicates the ON (closed) event of the second contact b (2M) of the shallow switch 47, and the key event type data KV (1) = "" of the first channel (channel number = 1). 010 ″ B indicates an off (open) event of the first contact c (1M) of the deep switch 48.

The time difference measurement mode flag TC (n) shown in FIG. 19 takes four state values “00” B, “01” B, “10” B, “11” B according to the history of the key event, and these states. The value represents the following state as shown in the margin of FIG.
[1] TC (n) = “00” B → A state in which neither an on-time difference Ton (n) nor an off-time difference Toff (n + 16) is measured due to an interruption,
[2] TC (n) = “01” B → A state in which an on-time difference Ton (n) is measured by an interruption
[3] State where TC (n) = “10” B → OFF time difference Toff (n + 16) is measured by interruption [4] TC (n) = “11” B → On time difference Ton (n), Off time difference Toff (n + 16) Further, as shown in FIG. 19B, the counter area constitutes a counter register of an on time difference Ton (n) and an off time difference Toff (n + 16) corresponding to each channel number.

  FIGS. 4A and 4B are diagrams for explaining an example of musical tone generation in the embodiment. FIG. 4A shows a case of sudden sound generation, and FIG. 4B shows a case of non-rush sound generation. In the process of the key stroke of the key pressing operation, the ON time difference Ton (n) from the time t1 when the first contact a of the shallow switch 47 is closed (ON) to the time t2 when the second contact b is closed is shown in FIG. Key-on touch data V1on (n) is acquired from the “Ton → Von conversion” table TBL1 shown in FIG.

  In the case of the first embodiment, when the key-on touch data V1on (n) exceeds the predetermined value A1, the rush sound of (a) is generated, and in the second to fourth embodiments, the DP value = “0” which is a set value. "" In this rush sounding, the key-on waveform is read out by the sound source means 7 immediately after the time t2 when the second contact b is closed, and a musical sound corresponding to the key-on touch data Von (n) = V1on (n) is generated. Is done.

  On the other hand, when the key-on touch data V1on is equal to or less than the predetermined value A1 in the first embodiment and when the DP value is not “0” in the second to fourth embodiments, the key-on waveform is not read at time t2, and the sound generation is controlled. It is left to the state of the deep switch 48 thereafter. That is, by the on-time difference Ton (n) from the time t3 when the first contact c of the deep switch 48 is closed (ON) to the time t4 when the second contact d is closed, “Ton → Key-on touch data V2on (n) is acquired from the “Von conversion” table TBL2. When the key-on touch data V2on (n) exceeds the predetermined value A2, the non-rush sound of (b) is generated, and the key-on waveform is read out by the sound source means 7 immediately after the time t4 when the second contact d is closed. Then, a tone corresponding to the key-on touch data Von (n) = V2on (n) is generated.

  When the key-on touch data V2on (n) is equal to or less than the predetermined value A2, the key-on waveform is not read and is not sounded. In the fourth embodiment, when the DP value = “1”, a medium non-intrusive sound (shown by a broken line) immediately after the time t3 when the first contact c of the deep switch 48 is closed. Become.

  In either case of rush sound or non-rush sound, the key-on waveform starts to decay at the rate Ron from the time t5 when the second contact b of the shallow switch 47 is opened (turned off). Here, the example of FIG. 4 is an example in which a key-off sound is added like a piano tone, and the attenuation of the key-on waveform is started and the key-off waveform is read and increased at the rate R0. Thereby, the cross-fade processing of the key-on waveform and the key-off waveform is performed. Then, the key-off touch data Voff (n + 16) is acquired by the off time difference Toff (n + 16) from the time t5 when the second contact b of the shallow switch 47 is opened to the time t6 when the first contact a is opened, and the first contact a is The key-off waveform starts to attenuate at the rate R1 and is muted from the time t6 when it is opened. This rate R1 is controlled according to the key-off touch data Voff (n + 16).

  The key-off waveform is used as described above. For example, in a piano, when the key is released without stepping on the pedal, the damper is gradually applied to the string to forcibly attenuate the vibration of the string. This is to reproduce the musical sound realistically. Also, in order to smoothly and smoothly reproduce the transition from the key-on waveform to the key-off waveform, the waveform transitions to the key-off waveform while performing the crossfading process, and the key-off waveform is reproduced with volume reduction and timbre change. The As for waveform storage / reading for timbres such as violada gamba and double bass which are non-intrusive instruments of stringed instruments instead of the piano, a system may be used to read off waveforms from off (t5) only for the pizzicato method.

  In the case of a tone that does not use the key-off waveform, the key-on waveform may be attenuated from the time t6 when the first contact a of the shallow switch 47 is opened, or the key-on waveform is generated from the time t5 when the second contact b is opened. It may be attenuated. In the following embodiment, as shown in FIG. 4, the key-off waveform is read after the key-on waveform. However, in the case of a tone that does not use the key-off waveform, the key-on is started from the time t6 when the first contact a is opened. The waveform shall be attenuated.

  Further, the time difference (time interval) between t2 to t3 or t2 to t4 or t3 to t4, that is, the time lag caused by the rush sound / non-rush sound, is a mode of the player's key touch (for example, “slowly at the beginning and fast thereafter. The key can be controlled by pressing the key, pressing the key quickly from the beginning and then pressing the key quickly, pressing the key slowly from the beginning to the end). Therefore, it is possible to express carefully in a deep part of the key pressing operation such as a musical sound expressed by pianissimo immediately before the end of the music. This representation approximates an acoustic piano.

  Next, the operation of the embodiment will be described based on a flowchart. [Main Process] FIG. 8 is a flowchart of the main process in the electronic musical instrument of the embodiment, and is common to the respective examples. When this process is started, first, in the initialization routine RT1, the key buffer KEYBUF, flag buffer TCBUF, counter area, and the like in the RAM 3 are initialized, and various initialization processes such as setting a default tone color are executed. In the next musical sound control parameter input processing routine RT2, a predetermined value A1 (first embodiment) and a predetermined value A2 (for controlling “protruding pronunciation / non-protruding pronunciation”) corresponding to each embodiment described later, respectively. First to fourth embodiments), personal data (second embodiment, third embodiment) or DP value (fourth embodiment) input, selection of timbre (instrument type, etc.), various input processes by the performer A process for setting the parameter designated by the above in the corresponding register of the RAM 3 is executed.

  Subsequently, in the key release / removal processing routine RT3, sound generation / mute control information is generated in response to the player's key release operation on the keyboard device 10, and the sound generation / mute control information is sent to the sound source means 7 for sound generation / mute. Instructs execution of processing. Then, the process returns to the musical tone parameter setting processing routine RT2, and thereafter, the processing of routines RT2 and RT3 is repeated.

  In this embodiment, in parallel with this main process, a timer interrupt process is started in response to a timer interrupt clock from the clock generator 9 generated every predetermined time (for example, 1 μsec). This interrupt process is executed while being linked to the key release process, and performs an on-time difference and off-time difference measurement process during keystrokes, the details of which will be described later.

[Musical Sound Control Parameter Input Process] FIG. 9 is a flowchart showing details of the musical sound control parameter input process (RT2 in FIG. 8). First, in step P1, the presence / absence of an on event for any of the personal data input or personal data key is determined. If there is no on event, the process proceeds to step P7, and if there is any on event, the process proceeds to step P2. It is determined whether or not there is a channel with a key code among all the channels of the key buffer KEYBUFU. If there is a key code in one channel, it is currently sounding, so input is prohibited and the process proceeds to step P7. If there is no key code in all channels, no sound is currently being produced, and input processing is performed after step P3.

  In step P3, “P data key input possible” is displayed on the display 12, or the cursor is blinked at the tip of the input possible part in the input part of the display 12 and the input possible state is displayed by this blinking. Next, input processing is performed in step P4. This input process includes a process of inputting numbers or characters using a numeric keypad, a character key, or a push key, a process of displaying the input character on the display 12, and a process of shifting the cursor position. In step P5, it is determined whether or not there is an on event of the return key (key for specifying input), and input processing is performed by P3 and P4 until there is an on event of the return key. If there is a return key ON event, the process proceeds to step P6. In step P6, the blinking of P3 is stopped and the input ready display is turned off.

  The process of step P7 differs depending on each embodiment. In the first embodiment, the numerical value input from the numeric keypad is set as the predetermined value A1 or the predetermined value A2. In the second and third embodiments, the input character string is identified, and the drop table TBL1 (x) of FIG. 6 or the drop table TBL2 (FIG. 7) corresponding to each embodiment is identified by the identified character string MOJI. x), the DP value corresponding to each embodiment is set to a predetermined value (“0” / “1”) with this character string. Also, a predetermined value A2 is set. Further, in the fourth embodiment, a numerical value (“0” / “1” / “2”) input from the numeric keypad is set as the DP value, and a predetermined value A2 is set. That is, the predetermined value A1, A2 or DP value corresponding to each embodiment is determined in step P7, and the process proceeds to step P8. In step P8, the display 12 is changed from the personality data display mode to the timbre display mode to perform timbre input processing or other input processing, and the process returns to the main routine.

  10 to 12 are flowcharts showing details of the key pressing / releasing process (RT3 in FIG. 8) in the embodiment. First, the first embodiment will be mainly described. FIG. 10 is common to the first to fourth embodiments, FIG. 11 is almost common to the first to fourth embodiments, and FIG. This is almost common to the third embodiment, and different parts are cut off each time, and the details will be described later.

(First Embodiment) In the first embodiment, a player inputs a first predetermined value A1 and a second predetermined value A2 which are threshold values of a key touch signal for determining whether to sound suddenly or not. Although it is set, it may be set corresponding to the tone color as described later. First, in step K1 in FIG. 10, it is determined whether or not there is a key event for any key. If there is a key event, the process proceeds to step K2, and if there is no key event, the process immediately returns to the main routine.

  In step K2, it is determined whether or not there is a channel (CH) storing the key code KC (n) of the generated key event in the key buffer KEYBUF, and there is a channel (CH) storing the key code. If YES, go to step K4. On the other hand, if there is no such channel (CH), the process proceeds to step K3, and “key channel (CH)” in which the key code data KC (n) is not stored in the key code area CR in the key buffer KEYBUF on the RAM 3 exists. Check if there is any. As a result, if there is an empty channel (CH), the process proceeds to step K4, and if not, the process immediately returns to the main routine. Here, returning to the main routine is because many events have occurred in the past short time and many sound generation / mute processes are being executed, so that no new key pressing process is possible. Processing, ignores the event that has just occurred.

  In step K4, the channel (CH) to which the sound is assigned is determined. Subsequently, in step K5, in the key buffer KEYBUF, the key code region CR and the key event type region corresponding to the determined channel number n in the channel number region NR. After writing the key code KC (n) and key event type KV (n) of the generated key event in VR, the process proceeds to step K6.

  In step K6, it is determined whether or not a key event is generated from the shallow switch 47. If the key event is for the shallow switch 47, the process proceeds to step K7. If not, the key event is for the deep switch 48. Proceed to In Steps K7 and K8, it is determined whether the event is an on / off event, and the control flow changes according to the type of switch in which the event occurred and the type of event.

  Here, in the process from the generation of the musical sound to the disappearance, normally, the key pressing stroke shown in FIG. 3 is changed to the key releasing stroke, and events are generated in the order corresponding to the key pressing stroke. Therefore, the sequence of events that occur in this key pressing stroke → key release stroke process (contact a on → contact b on → contact c on → contact d on → contact d off → contact c off → contact b off → contact a off) ) To explain the operation.

<< Contact a ON >> First, since the ON event of the first contact a of the shallow switch 47 occurs, the process proceeds from step K7 in FIG. 10 to step A1 in FIG. Note that step A6 in FIG. 11 is the process of the first embodiment, and the processes other than step A6 in FIG. 11 are common to the first to fourth embodiments. In step A1, it is determined whether the on-event is the first contact a or the second contact b. Since this is an on-event of the first contact a, the process proceeds to step A2, and the time difference measurement mode flag TC (n) is set to “ Set 01 "B and return to the original routine. Thereby, the counting (measurement) of the on-time difference Ton (n) is started in the channel n corresponding to the counter area by the timer interruption process that is proceeding simultaneously.

<< Contact b ON >> Next, since the ON event of the second contact b of the shallow switch 47 occurs, the process proceeds from step K7 in FIG. 10 to step A3 through step A1 in FIG. In step A3, the first touch data TBL1 (Ton (n)) is acquired from the on-time difference Ton (n) of the shallow switch 47 based on the conversion table TBL1, and is set to V1on (n) of the KEYBUF (key-on touch data area VnR). Capture and go to step A4. The ON time difference Ton (n) is the time from the ON event of the first contact a to the ON event of the second contact b.

  In step A4, the on-time difference register Ton (n) is reset. In step A5, "11" B is stored in the time difference measurement mode flag TC (n) to set the non-measurement mode, and the process proceeds to step A6. In step A6, it is determined whether or not the touch data V1on (n) exceeds the predetermined value A1, and if it is equal to or smaller than the predetermined value A1, the sound generation postponement flag WAIT (n) is set to “1” in step A7. Return to the routine (first embodiment). The processing of the second to fourth embodiments corresponding to step SA6 will be described later. On the other hand, if the touch data V1on (n) exceeds the predetermined value A1, the touch data V1on (n) is stored in the sound source sending register Von (n) in step A8, and the sound generation process is performed in step A9. Return to the routine. In this sound generation process, channel data (n), key code KC (n), key-on (n), and Von (n) are sent to the sound source means 7, thereby generating a musical sound.

  As described above, the ON time difference Ton (n) is detected at the ON event of the second contact b of the shallow switch 47, and when the touch data V1on (n) corresponding to the time difference exceeds the predetermined value A1, that is, strongly If so, at step A9, sound generation is started immediately, and "rush sound" is obtained. Further, when the touch data V1on (n) is equal to or less than the predetermined value A1, that is, when played softly, the sound generation is postponed and, as will be described later, determination of sound generation / non- sound generation based on the touch data of the subsequent deep switch 48, as will be described later. It is entrusted to.

  << Contact c ON >> Next, the key depression proceeds and an ON event of the first contact c of the deep switch 48 occurs, so the process proceeds from step K8 in FIG. 10 to step B1 in FIG. FIG. 12 is a process common to the first to third embodiments. In the case of the fourth embodiment, the process proceeds from step K8 in FIG. 10 to step B101 in FIG. In step B1 of FIG. 12, it is determined whether the on-event is the first contact c or the second contact d. Since this is an on-event of the first contact c, the process proceeds to step B2, and in this step B2, the time difference measurement mode is selected. The flag TC (n) is set to “01” B, and the process returns to the original routine. Thereby, measurement of the time difference of the contact by the deep switch 48 is started.

  << Contact d ON >> Next, since the ON event of the second contact d of the deep switch 48 occurs, the process proceeds from step K8 in FIG. 10 to step B3 through step B1 in FIG. In the case of the fourth embodiment, the process proceeds from step K8 in FIG. 10 to step B101 in FIG. In Step B3 of FIG. 12, the second touch data TBL2 (Ton (n)) is acquired from the on-time difference Ton (n) of the deep switch 48 based on the conversion table TBL2, and is taken into V2on (n) of the KEYBUF. Step B4 Proceed to The ON time difference Ton (n) is the time from the ON event of the first contact c to the ON event of the second contact d.

  In step B4, the on-time difference register Ton (n) is reset, and in step B5, "11" B is stored in the time difference measurement mode flag TC (n) to set the non-measurement mode (time measurement end state). Proceed to B6. In step B6, it is determined whether or not the touch data V2on (n) exceeds a predetermined value A2. If the touch data V2on (n) is equal to or smaller than the predetermined value A2, the process returns to the original routine. On the other hand, if the touch data V2on (n) exceeds the predetermined value A2, it is determined in step B7 whether or not “1” is set in the pronunciation postponement flag WAIT (n), and “1” must not be set. Returns to the original routine. If "1" is set, the touch data V2on (n) is set as touch data Von (n) for sound source transmission in step B8, the sound generation process is performed in step B9, and the sound generation postponement flag WAIT (n) is processed in step B10. ) To return to the original routine. In the sound generation process, channel data (n), key code KC (n), key-on (n), and Von (n) are sent to the sound source means 7, thereby generating sound.

  Thus, when sound generation is postponed from the on event of the shallow switch 47 without rushing sound generation, sound is generated by the second touch data V2on (n) corresponding to the time difference by the deep switch 48 and the second predetermined value A2. It is judged whether to pronounce or not to pronounce. When the second touch data V2on (n) exceeds the predetermined value A2, sound generation is started, and “non-rush sound generation” is set.

  Further, no sound is generated when the second touch data V2on (n) is equal to or smaller than the second predetermined value A2. For example, the second predetermined value A2 is set to a small value with respect to normal touch data, and by suppressing the sound generation with the predetermined value A2, it is possible to prevent erroneous sound generation due to exploration or the like. In this embodiment, the second predetermined value A2 is input and set. However, the second predetermined value A2 may be a preset value or a value set for each tone color.

<< Contact d Off, Contact c Off >> Next, when the key release is started, an off event of the second contact d and an off event of the first contact c of the deep switch 48 are sequentially generated. In either case, Returning to the original routine from step K8 in FIG. 10, no processing is performed.

<< Contact b Off >> Next, when an off event of the second contact b of the shallow switch 47 occurs, the process proceeds from step K7 in FIG. 10 to step C1 in FIG. FIG. 13 is a flow corresponding to the key-off process, and is common to the first to fourth embodiments. In step C1, it is determined whether the off event is the first contact a or the second contact b. Since the off event is the second contact b, the process proceeds to step C2, and the tone currently set in step C2 is determined. It is determined whether or not the timbre (for example, piano) to which a key-off waveform is added. If the timbre to which the key-off waveform is not added, the process proceeds directly to step C4. If the timbre is to add the key-off waveform, in step C3, Ron is set to the rate value Rn (n) and R0 to the rate R (n + 16), and the sound source. The data is output to the means 7 to instruct cross-fade processing of the key-on waveform and the key-off waveform, and the process proceeds to Step C4.

  In step C4, the time difference measurement mode flag TC (n + 16) is set to “10” B (Toff measurement) to start the measurement of the off time difference Toff (n + 16), and the process returns to the original routine.

<< Contact a Off >> Next, when an off event of the first contact a of the shallow switch 47 occurs, the process proceeds from step K7 in FIG. 10 to step C5 through step C1 in FIG. In Step C5, the third touch data TBL2 (Toff (n + 16)) is acquired from the OFF time difference Toff (n + 16) of the shallow switch 47 based on the conversion table TBL2, and Voff (n + 16) of KEYBUF (key-off touch data storage area VfR). And proceed to Step C6. The off time difference Toff (n + 16) is the time from the off event of the second contact b to the off event of the first contact a.

  Next, in step C6, the off-time difference register Toff (n + 16) is reset, and in step C7, mute processing is performed. In the silencing process in step C7, the rate R1 is obtained from the key-off touch data Voff (n + 16), and the channel data (n), the key code KC (n), the key-off (n), and the rate R1 are sent to the sound source means 7. The data of the channel in the key buffer KEYBUF and the counter area is cleared, and the process returns to the original routine. Thereby, the sound source means 7 is muted.

[Timer Interrupt Processing] FIG. 14 is a flowchart of timer interrupt processing. In this timer interruption process, the on-time difference Ton (n) or the off-time difference Toff (n + 16) is measured according to the state value of the time difference measurement mode flag TC (n). First, in step T1, the time difference measurement mode flags TC (0) to TC (31) of all the channels (CH) of the flag buffer TCBUF are “00” B or “11” B (untimed state / timed state). If the flags TC (0) to TC (31) of all the channels are “00” B or “11” B, the process returns to the original routine, and if not, the process proceeds to step T2.

  In step T2, a time difference measurement mode flag that is not “00” B or “11” B is identified in the flag buffer TCBUF, and a channel (CH) number n is determined. In this case, the first number value n is “1” (or the smallest channel (CH) number among the corresponding channels (CH) having a time difference measurement mode flag other than “00” B or “11” B). ). That is, the channel number is scanned from the minimum value to the maximum value, and all channels that are not “00” B or “11” B are extracted. The method is various, but includes a process of updating the channel number.

  Next, in step T3, it is determined whether or not the determined time difference measurement mode flag TC (n) of channel n is “01” B. When TC (n) is “01” B (Ton measurement), the on-time difference Ton (n) (count value up to now) of the counter area is incremented by “1” in Step T4, and the process proceeds to Step T6. On the other hand, when TC (n) is not “01” B, the OFF time difference Toff (n) (count value up to now) of the counter area is incremented by “1” in step T5, and the process proceeds to step T6. In step T6, it is determined whether or not the current channel number n is the maximum channel number value MAX (the maximum channel number to be searched in step T2), and the channel number n is the maximum channel number value MAX. If not, the process returns to the original routine. If not, the process proceeds to step T2 to extract other channel numbers that do not include the previous channel number value n, and then perform the processing after step T3.

  By the above processing, the on-time differences Ton (n) of the shallow switch 47 and the deep switch 48 and the off-time differences Toff (n) of the shallow switch 47 and the deep switch 48 are obtained. In this embodiment, only the time difference data of the shallow switch 47 is used, and the OFF time difference data of the deep switch 48 is not used for processing, but some control (for example, tone control: off-velocity has a greater tone of a musical tone that is being sounded). It may be used for increasing the harmonic content.

  As described above, the key-on touch data obtained from the shallow switch 47 can generate a plunging sound by a key pressing operation that exceeds a predetermined value A1, and a non-pushing sound can be generated by a key pressing operation that is equal to or less than the predetermined value A1. It becomes possible. Then, the key-on touch data obtained from the depth switch 48 causes a non-rush sound by a key pressing operation that exceeds a predetermined value A2. Therefore, for example, even beginners have an increased expressive power and articulation, and the electronic musical instrument is easy to play. Further, since the sound is not produced when the key-on touch data obtained from the depth switch 48 is less than the predetermined value A2, no sound is produced. In other words, even if you try to play, it is often not pronounced because the touch should be weak.

  Further, if the predetermined value A1> the predetermined value A2, the condition of the staccato playing method is satisfied, so that the staccato playing method is improved. This is because it is difficult to pronounce in the playing method. In addition, it is possible to squeeze sound only when the key is pressed with a strong touch, and with a weak touch, the sound is slightly delayed (more precisely, the sounding position sinks in the key-pressing direction). It acts as the same feeling and makes Pianissimo (PP) more like an acoustic piano. Further, if the predetermined value A1 <predetermined value A2, if A2 is relatively small, it is possible to generate a plunging sound even with a weak touch, and the expressive power with a weak little finger is strengthened, and if A1 is relatively large, If you do not make a relatively large touch, it will not be pronounced, so it will be a finger practice.

  In the above embodiment, when “1” is not set in the sound generation postponement flag WAIT (n) in step B7 in FIG. 12, that is, when the rush sound generation is performed, the process returns to the original routine as it is. However, the process shown in FIG. 15A may be performed as a process after the determination in step B7 is NO. That is, if “1” is not set in the pronunciation postponement flag WAIT (n) in step B7, the key-on touch data V2on (n) detected based on the depth switch 48 in step B7-1 is based on the shallow switch 47. It is determined whether or not the detected key-on touch data V1on (n) is exceeded. If not, the process returns to the original routine. On the other hand, if V2on (n) exceeds V1on (n), in step B7-2, the key-on touch data V2on (n) is stored in the register Von (n) and sent to the sound source means 7 to generate sound. The key-on touch data Von (n) is rewritten.

  As a result, as shown in FIG. 15B, when V2on (n)> V1on (n) is not satisfied, the sound volume becomes a musical sound corresponding to the staccato performance as shown by the broken line, but V2on (n)> V1on. In the case of (n), the sound volume changes as shown by a solid line and becomes a musical sound corresponding to the case of pushing. Note that times t2 and t4 in FIG. 15B correspond to t2 and t4 in FIG.

  In the first embodiment described above, the predetermined value A1 or A2 is input by an operator such as a numeric keypad of the panel switch 11. However, for example, an existing operator such as a slide operator or a wheel operator, The input setting may be made by an operator provided separately.

  In the first embodiment described above, the player inputs and sets the first predetermined value A1 for determining whether or not to rush sound. For example, the table shown in FIG. The predetermined value A1 may be set corresponding to the tone color. For example, in a tone that simulates a pipe organ, violada gamba, bassoon, horn, oboe, etc., the actual sound will be delayed due to its envelope (that is, the sound of the acoustic instrument described above is a musical tone from a predetermined sounding timing). This means that there is a time lag for growing to the extent that it can be heard by the human ear, and the volume of sound (tone value) (which is easy to understand when considered as sound energy) is actually perceived. Is slightly delayed from the actual sounding start timing), and by setting the predetermined value A1 to “0”, it always becomes “rush sounding”, and even if a beginner plays, it is possible to prevent the sounding timing from being delayed. . Also, since the sound of the koto and xylophone sounds quickly, the predetermined value A1 is set to the maximum value (Velocity “127” of the MIDI standard) and is always “non-intrusive pronunciation”.

(Second Embodiment) In the second embodiment, a DP value for determining whether to sound suddenly or not is inputted and set according to "how many players". That is, in steps P4 to P7 of the musical tone control parameter input process of FIG. 9, for example, the drop table TBL1 (x) of FIG. 6 is referred to by the input character string MOJI, and this character string (player name, etc.) is used for DP. The value is set to a predetermined value (“0” / “1”). The second predetermined value A2 is input by the performer. Then, after the key pressing process of FIG. 10, the same process as in the first embodiment is performed except for step A6 of FIG.

  In the second embodiment, the process of FIG. 16 is performed instead of step A6 of FIG. That is, the touch data V1on (n) is acquired from the ON time difference of the shallow switch 47 by closing the second contact b of the shallow switch 47, and “11” B is stored in the time difference measurement mode flag TC (n) in step A5. After that, the process proceeds to step A6 ′. In step A6 ', it is determined whether or not the DP value is "0". If the DP value is not "0", in step A7, the pronunciation postponing flag WAIT (n) is set to "1" and the original routine is returned to. Return. If the DP value is “0”, the touch data V1on (n) is stored in the sound source sending register Von (n) in step A8, and the sound generation process is performed in step A9 (FIG. 11). The process of FIG. 12 is performed when the deep switch 48 is on, and the process of FIG. 13 is performed when the shallow switch 47 is off, as in the first embodiment.

  In the second embodiment described above, when the DP value is “0”, “intrusive sound generation” is obtained, and when the DP value is “1”, “non-intrusive sound generation” is obtained. As shown in FIG. 6, when the personal data is “how many players”, if it is input as a player such as piano, guitar, iron koto, xylophone, etc., the DP value = 0, and viola dagamba, bassoon, DP value = 1 when input as a player such as oboe, horn, pipe organ. Therefore, for example, when a tone color that tends to be delayed, such as a pipe organ, is currently selected, the “player” of piano to xylophone can prevent a delay in sound generation timing due to the sudden sound. The “player” of Viorada Gamba to Pipe Organ can play normally.

  Also, for example, when a piano tone is currently selected, the piano-xylophone “player” has a fine articulation that does not feel the delay in pronunciation due to the transmission delay peculiar to the conventional piano transmission mechanism due to the rushing pronunciation. The sounding of the timing, violadagamba-pipe organ "player" can be obtained by non-rushing pronunciation, as well as piano sound with excellent articulation.

(Third Embodiment) In the third embodiment, the DP value for determining whether to sound suddenly or not is determined by whether the player is “how many players” and “professional or amateur”. Input is set accordingly. That is, in steps P4 to P7 of the musical tone control parameter input process of FIG. 9, the character string MOJI is referred to, for example, the drop table TBL2 (x) of FIG. 7, and this character string (player name, “pro” / The DP value is set to a predetermined value (“0” / “1”) with “Ama” or the like. The second predetermined value A2 is input by the performer. The control according to the DP value and the predetermined value A2 is the same as in the second embodiment.

  As a result, for example, in the case of a piano player, when an amateur is selected, even a beginner who is slow to perform will be able to perform professionally with increased expressiveness and articulation, making it an easy-to-play electronic musical instrument .

(Fourth Embodiment) In the fourth embodiment, the performer inputs and sets the DP value for determining whether to pronounce suddenly or non-protrusively from among three stages. The second predetermined value A2 is input by the performer. That is, in the musical tone control parameter input process of FIG. 9, the DP value is input by selecting “0”, “1” or “2” with the numeric keypad, for example. In the fourth embodiment, processing similar to that in the second embodiment shown in FIGS. 10, 11, 16, and 13 is performed. When the DP value is “0”, the processing shown in FIGS. 11 and 16 is performed. When the sound is generated and the DP value is other than “0”, the sound generation is postponed through steps A6 ′ and A7 of FIG. When the deep switch 48 is on, the process proceeds from step K8 in FIG. 10 to step B101 in FIG.

  In step B101, it is determined whether or not “1” is set in the pronunciation postponing flag WAIT (n). If “1” is not set, the process returns to the original routine. If “1” stands, it is determined in step B102 whether the DP value is “1”. If the DP value is not “1”, the process proceeds to step B105, and the DP value is “1”. If so, the process proceeds to step B103. In step B103, the touch data V1on (n) is stored in the sound source sending register Von (n). In step B104, the sound generation process similar to that described above is performed. In step B115, the sound generation postponement flag WAIT (n) is reset. Return to the original routine. As a result, as shown in FIG. 4, the medium non-rush sounding is performed immediately after the time t3 when the first contact c of the deep switch 48 is closed.

  In Step B105, it is determined whether or not the DP value is “2”. If the DP value is not “2”, the process returns to the original routine. If the DP value is “2”, the processing after Step B106 is performed. I do. The processing in steps B106 to B110 is the same as the processing in steps B1 to B10 in FIG. 12. When the DP value is “2”, the shallow switch 47 is turned on and the first contact c of the depth switch 48 is set. When the second touch data V2on (n) exceeds the predetermined value A2 immediately after the second contact d of the deep switch 48 is closed, the sound generation is started. "Intrusive pronunciation". Further, no sound is generated when the second touch data V2on (n) is equal to or smaller than the second predetermined value A2. When the deep switch 48 is an off event, the process returns to the original routine from step K8 in FIG. 10, and when the shallow switch 47 is an off event, the process of FIG. 13 is performed as in the other embodiments. is there.

  As described above, in the fourth embodiment, the first two contacts of the shallow switch 47 and the deep switch 48 are used for acquiring the touch data V1on (n), and the touch data V1on (n) The mode for starting sound generation at the second contact point obtained (DP value = 0), the mode for starting sound generation at the ON event of the first contact c of the deep switch 48 (DP value = 1), and the second contact point d of the deep switch 48 There is a mode (DP value = 2) in which sound generation is started by an on event.

  According to the fourth embodiment, it is possible to select a sudden sound, a medium non-rush sound, and a non-rush sound, and the electronic musical instrument becomes easier to play. For example, for piano to xylophone “players” with a DP value = 0 for “sounding pronunciation”, and for violada gamba to pipe organ “players” DP values = 1 for “moderate non-intrusive pronunciation”, and for piano-like timbres, the “player” of piano to xylophone sets DP value = 0 or 1 to “intrusive or intermediate non-intrusive pronunciation” The “player” of Viorada Gamba to pipe organ may be set to “non-intrusive pronunciation” with DP value = 2.

  Further, a technique for sensing the key position in the entire stroke of the key stroke may be used. However, according to the fourth embodiment, the control is performed by only two mechanic switches such as the shallow switch 47 and the deep switch 48. Therefore, the key stroke detection accuracy (accuracy) is high. Furthermore, the control flow is simple, and software processing such as full-stroke sensing is not required, and the processing speed can be increased in response to a key pressing operation.

  In the above embodiment, the sound generation timing is controlled according to the ON / OFF of the four contacts, but the touch acquired from the time difference between the two contacts before the key pressing stroke using the key switch of the three contacts. Depending on the data, you may make a rush sound.

  In addition, the number of contacts in a keystroke may be increased, or the number of DP values that can be set is increased using full-stroke sensing, so that the non-rush sounding mode (sounding timing) can be set in multiple stages. , It may be set steplessly. In this case, as touch data, data immediately before sound generation, initial key pressing, intermediate, or data obtained by mixing them may be used.

It is a block diagram of the electronic musical instrument of the embodiment of the present invention. It is a figure which shows the keyboard apparatus which concerns on embodiment. It is a figure for demonstrating the function of the key switch in embodiment. It is a figure explaining an example of musical tone generation in an embodiment. It is a figure which shows an example of the table in the case of setting the predetermined value by tone color in embodiment. It is a figure which shows dropping table TBL1 (2nd Example) in embodiment. It is a figure which shows dropping table TBL2 (3rd Example) in embodiment. It is a flowchart of the main process in embodiment. It is a flowchart of a musical tone control parameter input process in the embodiment. It is a part of flowchart of the key release process in embodiment. It is another part of the flowchart of the key release key process in an embodiment. It is another part of the flowchart of the key release key process in an embodiment. It is another part of the flowchart of the key release key process in an embodiment. It is a flowchart of the timer interruption process in the embodiment. It is a figure explaining the flowchart and effect | action of the other Example which changes the touch data at the time of performing the rush sound generation in embodiment. It is a flowchart which concerns on the 2nd Example in embodiment. It is a flowchart which concerns on the 4th Example in embodiment. It is a figure which shows the format of the key buffer and key event kind data in embodiment. It is a figure which shows the format of the flag buffer TCBUF and counter area | region in embodiment. It is a figure which shows "Ton-> Von conversion" table TBL1 and "Ton-> Von conversion" table TBL2 in embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... CPU, 7 ... Sound source means, 10 ... Keyboard device, 21W ... White key, 21B ... Black key, 47 ... Shallow switch, 48 ... Deep switch

Claims (1)

Timbre setting means for setting the timbre,
The key to be pressed and released,
A first touch sensor that generates a first key touch signal at a shallow position in the keystroke when the key is pressed, and a second touch that generates a second key touch signal at a deep position in the keystroke and the sensor, and the key touch sensor means consisting of,
Musical tone control means for controlling a musical tone having the set timbre based on a key touch signal generated by the key touch sensor means;
Performer information input means for inputting performer information ;
Depending on the player information input by the player information input means, or sound immediately after the first key touch signal generated by shallower of said key stroke is obtained, the deeper of said key stroke An electronic musical instrument comprising sound generation timing control means for switching whether sound generation / non- sound generation is controlled according to the generated second key touch signal.

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