JP4054019B2 - Performance parameter input device - Google Patents

Description

  The present invention relates to a performance parameter input device for inputting performance parameters or performance parameter values prior to or during the production of a musical sound.

Conventionally, in an electronic musical instrument, an automatic performance device, and the like, operators such as an up / down key, a data entry slider, and a rotary encoder are widely used for setting performance parameters. In addition, operators independent of the keyboard, such as a pitch bender and a wheel, are widely used to control the musical sound being generated.
JP-A-6-202656

  However, conventionally, when setting parameters, since the display device and the operation element are separated, there is a problem for the user to intuitively operate the operation element while viewing the display on the display device. Also, with respect to the musical sound control, it is necessary to operate an operator such as a pitch bender and a wheel together with the keyboard, and a great effort is required to master the operation.

  Patent Document 1 uses a cordless electronic pen and a magnetic electronic pen sensor integrated on a lower surface of a display, and is based on position data of the electronic pen obtained by a resonance phenomenon between the electronic pen and the electronic pen sensor. Thus, a technique for setting parameters has been proposed. For example, it is described that parameter setting is performed by continuously incrementing / decrementing numerical data at a predetermined speed by holding the electronic pen after pressing the electronic pen against the display and pulling it upward / downward. Therefore, according to this method, the parameter setting operation is simple.

  However, since this technique uses an electronic pen or the like, the circuit configuration is complicated, which increases costs. In addition, when the numerical data is continuously incremented / decremented only at the initial speed, it may be difficult to set the amount of change in the numerical data that suits both cases when there are few and many numerical data. For this reason, one aspect lacking appropriate operability in parameter setting can be seen.

  In view of the above circumstances, an object of the present invention is to provide a performance parameter input device capable of inputting performance parameters or parameter values of performance parameters with a simple operation.

The performance parameter input device of the present invention that achieves the above object includes a touch panel for detecting a contact position, and a display panel that is arranged on the back side of the touch panel and the display content can be visually recognized through the touch panel. In a performance parameter input device for inputting performance parameters or parameter values for performance parameters according to the display content of the display panel and the operation state of the touch panel,
The touch panel surface is divided into a plurality of areas corresponding to a plurality of pressing means having different pressing areas, and in detecting the contact position on the touch panel, the contact position is in any of the plurality of areas. Contact position detection means for detecting the contact position using different position detection methods depending on whether there is,
The contact position detecting means is configured to detect the position in a region corresponding to a pressing means having a relatively small pressing area among a plurality of areas corresponding to the plurality of pressing means having different pressing areas. Position detection is performed in a shorter time than when position detection is performed in an area corresponding to a large pressing means,
When position detection is performed in an area corresponding to a pressing means having a relatively large pressing area, position detection is performed over a longer time than when position detection is performed in an area corresponding to a pressing means having a relatively small pressing area. A performance parameter input device for performing position detection using different position detection methods.

  In the operation of the touch panel, when a region mainly operated with a finger or the like and a region mainly operated with a pen are mixed, a finger having a larger contact area takes longer to determine a contact position. At this time, if it is uniformly inserted for finger operation, the contact position judgment in the area operated with the pen will be slow and lack high-speed response. If it is adjusted to the position, there is a possibility that the contact position is erroneously determined when operated with a finger.

  According to the performance parameter input device of the present invention, since the detection method is divided according to the region, the most effective touch position detection is performed on the entire touch panel, and both detection accuracy and high-speed response can be achieved.

  As described above, according to the present invention, a performance parameter input device with good operability is realized.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a block diagram of an electronic musical instrument in which a first embodiment of a performance parameter input device of the present invention is incorporated.

  The display 11 shown in FIG. 1 displays icons such as various parameters and keyboards described later.

  The touch panel 12 is an analog transparent panel disposed on the display 11 and outputs position information indicating the touched position as an analog signal.

  The ROM 13 stores a program for controlling the entire electronic musical instrument shown in FIG.

  The CPU 14 performs necessary processing based on the program stored in the ROM 13. Further, the CPU 14 is provided with an A / D converter (not shown), and the CPU 14 A / D converts position information and press information from the touch panel 12 with this A / D converter.

  The RAM 15 temporarily stores position information and pressing information A / D converted by the CPU 14 and data necessary for the CPU 14 to execute the program stored in the ROM 13.

  The sound source 16 generates musical sounds based on each piece of information on the touch panel 12.

  FIG. 2 is a diagram showing an operation panel including the display and the touch panel shown in FIG.

  The operation panel 20 shown in FIG. 2 includes a display device 11 and a transparent touch panel 12 disposed on the display device 11. Since the touch panel 12 is transparent, the operation panel 20 touches the touch panel 12 while looking at the parameters and icons displayed on the display screen 11a of the display unit 11, so that the parameter setting operation and the icon change are intuitively performed. Operations can be performed.

  FIG. 3 is a diagram for explaining the position detection principle of the touch panel shown in FIG. 2, and FIG. 4 is a circuit diagram of an interface unit interposed between the touch panel and the CPU.

  FIG. 3 shows an explanatory diagram (a) for detecting the position in the x direction in the position information of the touch panel 12 and an explanatory diagram (b) for detecting the position in the y direction.

  First, the principle of detecting the position in the x direction will be described with reference to FIGS.

  The touch panel 12 shown in FIG. 3A is composed of two sheets 12x and 12y that are coated with resistors uniformly and stacked one above the other at a predetermined distance.

  The sheet 12x is provided with terminals 12x1 and 12x2 on the two left and right sides of FIG. 3A facing the sheet 12x, and the sheet 12y is facing the sheet 12y of FIG. 3A facing each other. Terminals 12y1 and 12y2 are provided on two upper and lower sides.

  On the other hand, both of the ports 1 and 2 of the CPU 14 shown in FIG. 4 output an “H” level signal, whereby both the tristate buffer 36a and the transistor 36b constituting the interface unit 36 are turned on, and the terminal 12x1 is grounded. The voltage V is applied to the terminal 12x2. On the other hand, both the ports 3 and 4 of the CPU 14 output ‘L’ level signals, whereby both the tristate buffer 34c and the transistor 34d are cut off. Here, when the point x shown in FIG. 3A of the touch panel 12 is pressed by the touch pen 31, the sheet 12x and the sheet 12y come into contact with each other, and the sheet 12x is located at the position in the x direction of the point x pressed by the touch pen 31. A corresponding voltage drop occurs, and the dropped voltage is output from the terminal 12y2. The voltage output from the terminal 12y2 is input to the A / D1 of the CPU 14 via a circuit including the resistor 32 and the capacitor 33, and is A / D converted. In this way, the position in the x direction is detected.

  Further, in order to detect the position in the y direction, both the ports 3 and 4 of the CPU 14 shown in FIG. 4 output an “H” level signal, whereby both the tristate buffer 36c and the transistor 36d become conductive. The terminal 12y1 is grounded, and the voltage V is applied to the terminal 12y2. Further, both of the ports 1 and 2 of the CPU 14 output an 'L' level signal, whereby both the tristate buffer 34a and the transistor 34b are cut off. Here, when the point x shown in FIG. 3B of the touch panel 12 is pressed by the touch pen 31, a voltage drop corresponding to the position of the sheet 12y in the y direction of the point x pressed by the touch pen 31 occurs. The voltage dropped due to the voltage drop is output to the terminal 12x2. This voltage in the y direction is input to the A / D 2 via the circuit composed of the resistor 34 and the capacitor 35 and A / D converted. In this way, the position in the y direction is detected.

  An operation of detecting the pressed position on the touch panel by alternately detecting the positions in the x direction and the y direction described above by the CPU 14 will be described.

  For convenience of explanation, the terminal 12x1 for detecting the position in the x direction is grounded, the voltage V is applied to the terminal 12x2, and the position in the x direction is detected by the voltage output from the terminal 12y2. It shall be. At this time, the capacitor 35 connected to the terminal 12x2 to which the voltage V is applied is also charged. Next, when the position in the y direction is detected, the voltage V applied to the terminal 12x2 is first cut off. Then, the charged electric charge of the capacitor 35 is discharged to the ground through the resistor 34, the terminal 12x2, the sheet 12x and the terminal 12x1, and the capacitor 35 is discharged. Next, the terminal 12y1 is grounded, and after a predetermined time when the capacitor is sufficiently discharged, the terminal 12x1 grounded when detecting the position in the x direction is disconnected from the grounded state to be in a high impedance state. Next, the voltage V is applied to the terminal 12y2, and the position in the y direction is detected by the voltage output from the terminal 12x2.

  Next, when the position in the x direction is detected, the above switching operation x and y are switched, the switching operation is performed with the capacitor 33 and the resistance 32, and these switching operations are alternately performed on the touch panel. The pressing position of is detected.

  Here, when not pressed, the detecting capacitor 33 or 35 is always discharged, so that the ground level voltage is detected. The CPU also detects whether or not it is pressed by comparing the detected voltage with the voltage at or near the ground level, and whether or not the pressed position is an operation area on the touch panel. These scans are processed every time the CPU 14 generates a periodic interrupt of a timer (not shown).

  In this way, the voltage output from the touch panel 12 is A / D converted and read as a digital code into the CPU 14 for processing, whereby “touch panel 12 is pressed (change)” and “touch panel 12 is pressed. (State) ”,“ Pressed position on touch panel 12 when pressed or pressed ”,“ Change of pressed position (sliding operation) when pressed ”,“ Touch panel 12 from pressed It is possible to obtain information such as “open (change)” and “touch panel 12 is not pressed (state)”.

  The processing for obtaining these pieces of information can be easily determined by sequentially storing the press and press position information within a predetermined time on the RAM 15.

  However, when the touch panel 12 is pressed from a state where the touch panel 12 is not pressed, a voltage representing a correct pressing position is not immediately output, and therefore it is generally necessary to allow for a slight time lag. Moreover, this time lag becomes so large that it presses with a thing with a big press area (for example, finger | toe), and time is required for position determination with respect to a press. Accordingly, it is desirable to change the position determination method for the pressing operation mainly in a region operated with a small pressing area such as a touch pen and a region operated mainly with a large pressing area such as a finger.

  By the way, in order to determine the actual pressing position (coordinates) on the touch panel 12 from the digital value read from the touch panel 12 to the CPU 14, it is necessary to first calibrate the digital value and the actual position.

  FIG. 5 is an explanatory diagram of calibration in the touch panel.

The calibration operation can be performed using, for example, a pair of diagonal points in the detection area of the touch panel 12 as shown in FIG. In FIG. 5, first, point A is pressed with a touch pen or the like, and voltage data (XA, YA) at point A is obtained. Next, the point B is pressed in the same manner to obtain voltage data (XB, YB) at the point B. Here, assuming that the distance in the x direction determined by the points A and B on the touch panel 12 is LX, and the distance in the y direction is LY, the above-described display device is determined by the distance LX in the x direction and the distance LY in the y direction. 11 displayable area is determined, and this area does not change practically. Therefore, if the voltage data when pressing an arbitrary point C in this area on the touch panel 12 is (XC, YC), the touch panel 12 The absolute position (LXc, LYc) of the pressing point with respect to point B is
LXc = (LX / (XA−XB)) × (XC−XB)
LYc = (LY / (YA−YB)) × (YC−YB)
It becomes.

  However, here, it is assumed that the point B generates a lower voltage value when pressed compared to the point A, and the resistance value change depending on the position on the touch panel 12 has sufficient linearity.

  As described above, in the operation panel 20 of the present embodiment, the positions of the display unit 11 and the touch panel 12 are aligned with each other so that the pressing operation and the sliding operation on the touch panel 12 can be performed on the display elements on the display unit 11. Can be associated with a position.

  FIG. 6 is a view showing a display example on the operation panel shown in FIG.

  A “keyboard” icon 61 simulating a keyboard shown in FIG. 6 represents the keyboard of the selected part. By touching this keyboard, the tone range of the keyboard and the tone of the selected part are displayed. Various musical sounds can be controlled with respect to the musical sound being pronounced by performing a sliding operation.

  The “<” and “>” icons 62 are for shifting the tone generation range of the keyboard indicated by the “keyboard” icon 61 in octave units.

  The “OCT” icon 63 serves to return the keyboard sound range indicated by the “keyboard” icon 61 to the reference range regardless of the current sound range.

  The “V.PARA” icon 64 is an icon for switching to a musical sound parameter setting screen controlled by a vertical sliding operation of the keyboard of the selected part.

  The “H.PARA” icon 65 is an icon for switching to a musical sound parameter setting screen controlled by a horizontal sliding operation of the keyboard of the selected part.

  The “INST” icon 66 is an icon for switching to a screen for assigning a tone color to be sounded to the keyboard of the selected part.

  The “+” and “−” icons 67 blink when the changeable display element is touched with the touch pen. When the display is blinking, the “+” and “−” icons 67 are touched. This is an icon for changing the value. In order not to change the value carelessly, when the display element is not blinking, the value does not change even if these “+” and “−” icons 67 are pressed.

  The message display area 68 has a display area of a size of 16 characters × 1 line, and for example, a timbre name is displayed when touched.

  Here, the “keyboard” icon 61, the “<” “>” icon 62, the “OCT” icon 63, and the message display area 68 are areas that are mainly operated with a touch pen. On the other hand, the “V. PARA” icon 64, the “H. PARA” icon 65, the “INST” icon 66, and the “+” and “−” icons 67 are regions operated mainly with fingers. The region operated by these fingers takes time to determine the operation position as compared with the region operated by the touch pen.

  That is, in the area operated with the touch pen, scanning is performed twice, and the position touched with the second value is determined. In the area operated with the finger, scanning is performed three times, and the third value is used. The touched position is determined. In this case, the method of determining the number of scans is to detect the approximate position on the touch panel with the value of the first scan, and that value is the value of the second scan corresponding to the area operated with the touch pen, and the value is If it corresponds to an area operated by a finger, the position is determined by the third value.

  In addition, as described above, the number of scans is not determined in advance, but the values output by the scan are sequentially stored in the buffer, and the position is determined by the value when the value converges within a certain range. You may do it.

  Furthermore, instead of determining the number of scans based on the value of the first scan, a touch panel that has been divided into two according to the number of scans in advance is used, the position of one of the divided touch panels is determined by the second scan, and the other touch panel Then, the determination may be detected by the third scanning.

  As described above, when the area mainly operated with a finger or the like and the area mainly operated with a pen are mixed on the touch panel, the determination of the pressed position on the touch panel differs depending on the area to be determined. By adopting the position determination method, for example, it is uniformly adjusted for finger operation, the position determination is delayed until it should be operated with the touch pen, or conversely, it is uniformly adjusted for touch pen operation, It is possible to prevent a possibility that the position of the area to be operated with a finger is erroneously determined. Therefore, by dividing the determination method according to the area, the most efficient determination can be performed on the entire touch panel, and a comfortable operation system can be realized.

  In the present embodiment, by touching the “keyboard” icon 61 on the operation panel 20, the 16-part built-in multitimbral sound source is sounded, and the sound is being generated by a sliding operation described later in the vicinity of the “keyboard” icon 61. The musical tone parameters can be controlled. In addition to the control of the musical sound being sounded, it is possible to assign a timbre to each part of the multitimbral and to set a musical sound parameter to be controlled at the time of sounding using the “keyboard” icon 61. These will also be described later.

  FIG. 7 is a diagram (display example) for explaining an operation for assigning a timbre (instrument) to each part on the operation panel.

  When the “INST” icon 66 on the operation panel 20 is touched, “part08 = A.Piano2” shown in FIG. 7A is displayed in the message display area 68. This display indicates that a timbre (instrument) named “A. Piano2” is assigned to part 08 of the multitimbral. Next, when the display area 68a displaying “A.Piano2” in the message display area 68 is touched with the touch pen 31, the character string “A.Piano2” blinks.

  When the touch pen is slid above the display area 68a as shown by the up arrow (↑) in FIG. 7B while touching, the tone is “A. Piano 2” in FIG. It switches at regular intervals in the order of the arrows drawn upward. When the touch pen is slid below the display area 68a as shown by the down arrow (↓) in FIG. 7B, the timbre is in the order of the arrows written below “A. Piano 2” in FIG. Switch at regular intervals. As long as the touch is stopped even if the sliding operation is stopped, the parameter for setting the timbre is switched at regular intervals (hereinafter, the state in which the parameter is switched at regular intervals is referred to as “fast forward”). The amount of change (for example, whether to increase or decrease by 2 or 3 by 3 in the order of the timbres stored in the table shape) changes according to the sliding distance.

  For example, it is impossible to change the value setting in 256 steps, etc., with a constant amount of change for every constant sliding distance. However, as described above, the parameter or the parameter setting value depends on the sliding operation distance. By changing the change speed (rapid feed speed), that is, it is always in the fast feed state as long as it is pressed, and the feed speed (or the degree of change = for example, increasing by 1 or increasing by 3) is slid. By changing according to the moving distance, values in various ranges can be easily set even in a limited region.

  The setting (value) is changed by this operation when the display area 68a is slid beyond the upper end or the lower end of the range surrounded by the broken line shown in FIG. 7B.

  Although it is conceivable to change the setting when a certain distance slide operation is performed from the initial pressing position, there is a problem that the display may be difficult to see with the touch pen 31. Therefore, when the sliding operation stays within the predetermined range on the touch panel, a dead zone is provided so that the parameter or the parameter setting value is not changed. The setting is changed when sliding outside (), so the display is easy to see and comfortable to operate.

Further, when “part08 = A.Piano2” is displayed in the message display area 68, the display area 68a of “A.Piano2” is touched with the touch pen 31, and the character string “A.Piano2” blinks. ,
By sliding left or right while touching, you can switch to the part corresponding to the sliding distance, and the timbre name assigned to that part is displayed in conjunction with the part switching. Is done. For example, when sliding for a certain distance in the direction of the left arrow (←) in FIG. 7B, switching from “part08 = A.Piano2” to “part07 = A.Bass” as shown in FIG. It is done. Similarly, when sliding in the direction of the right arrow (→), “part08 = A.Piano2” is switched to “part09 = T.Sax”.

  The setting (value) is changed by this operation when the display area 68a is slid beyond the left end or the right end.

  Here, the concept of a set necessary for the following explanation will be explained. A set refers to a set of parameters having a certain correlation, and here corresponds to a part.

  In this way, the musical tone parameter (in this case, the parameter for setting the timbre) is adjusted according to the sliding distance up and down, and if the slider slides a certain distance to the right, the same parameter (timbre is set in the next set (Part 09). Parameter) to be set, and by further sliding up and down while pressing, the same parameter value (here, T.Sax) of the set (Part 09) can be changed.

  Also, if you hold down and slide to the left for a certain distance, you can set the same parameters (parameters for setting the tone) of the previous set (Part 07 here), and if you hold down and slide further up and down, the set The parameter value of (Part07) (here, A. Bass) can be changed.

  In the conventional electronic musical instrument, when the same parameter can be set in multiple sets, it is necessary to perform the set changing operation and the parameter setting operation separately. In this way, the set changing operation and the parameter changing operation are not performed. It is comfortable because it can be done uniformly. For example, it is possible to easily set music parameters for each part of a multitimbral sound source.

  In the present embodiment, as will be described in detail later, it is possible to control a musical tone that is being generated by changing a musical tone parameter set in advance by sliding the “keyboard” icon 61 in the vertical and horizontal directions with a touch pen.

  FIG. 8 is an explanatory diagram (display example) of an operation for setting in advance the musical tone parameters that change when the “keyboard” icon is slid in the vertical direction during the musical tone generation.

  When the “V.PARA” icon 64 on the operation panel 20 is touched with the touch pen 31 or a finger, “V.Para1 = CUTOF” is displayed in the message display area 68 as shown in FIG. Thus, a musical sound parameter setting screen controlled by a vertical sliding operation with the “keyboard” icon 61 is displayed.

  Next, when the touch pen 31 is used to touch the display area 68a displaying "CUTOF" in the message display area 68, the character string display of "CUTOF" blinks. Here, when the display unit 68a is slid upward with the touch pen 31 being touched, it changes to “MODUL” and “BEND” as shown in FIG. 8B. On the other hand, if the user slides downward while touching, it changes to “RESON” and “AFTER” as shown in FIG.

The musical sound parameters that can be set are as follows. (Description of the contents controlled by each musical tone parameter is omitted.)
BEND: Pitch bend MODUL: Modulation CUTOF: Cut-off frequency RESON: Resonance AFTER: Aftertouch VOL: Volume EXP: Expression PAN: Pan WAH: Wow effect VIB: Vibrato rate LFO: LFO rate REV: RVO Delay send OFF: No setting When the musical tone parameter is set to “OFF”, the musical tone parameter is controlled even when the “keyboard” icon 61 is slid vertically while the musical tone is being sounded, as will be described later. Absent.

  FIG. 8C is a switching display diagram when sliding left and right while touching. That is, when sliding to the right while being pressed, V.V. Para2, V.I. When sliding to the left in the state of pressing Para3, it is not indicated by an arrow in the drawing, but V.V. Para3, V.D. It is possible to switch to a parameter to be set in the order of Para2. In this way, the setting of the musical sound parameter that changes when the “keyboard” icon 61 is slid in the vertical direction is designated by “V. Para1 to V. Para3”.

  Here, up to three musical tone parameters set from “V. Para1” to “V. Para3” are controlled simultaneously by a vertical sliding operation of a “keyboard” icon 61 during musical tone generation, which will be described later. Can do.

  Note that the sliding operation and the method of changing the setting (fast forward, etc.) are the same as in the case of timbre assignment to the above-mentioned part.

  FIG. 9 is an explanatory diagram (display example) of an operation for setting in advance the musical sound parameters that change when the musical instrument is slid horizontally on the “keyboard” icon.

  When the “H.PARA” icon 65 on the operation panel 20 is touched with the touch pen 31 or a finger, “H.Mode = PORTA” is displayed in the message display area 68 as shown in FIG. Thus, a musical sound parameter setting screen controlled by a horizontal sliding operation with the “keyboard” icon 61 is displayed.

  Here, when the display area 68 a displaying “PORTA” in the message display area 68 is touched with the touch pen 31, the character string display of “PORTA” blinks. When the touch pen 31 is slid up and down while touching, it changes to “GLIS” or “OFF” as shown in FIG. 9B.

  On the other hand, when the display area 68a in which “PORTA” is displayed in the message display area 68 is touched with the touch pen 31, the character string display of “PORTA” blinks. Here, when the touch pen 31 is slid to the right in the touched state, as shown in FIG. 9C, “H. Para 1”, “H. Para 1”, H. Para. It is possible to switch to “Para 2” and “H. Para 3” (not shown).

  Further, when the touch pen is slid to the left in a touched state, an H.D. Para3, H.M. Para2, H.M. It can be switched in order of Para1.

  The musical sound parameters set in “H. Para 1”, “H. Para 2”, and “H. Para 3” are the musical sound parameters set in “V. Para 1”, “V. Para 2”, and “V. Para 3” described above. Is the same. Here, up to three musical tone parameters set from “H. Para1” to “H. Para3” can be controlled simultaneously.

  In the horizontal control, unlike the above-described vertical control, there is a mode setting of “H.Mode”. When “H.Mode” is set to other than “OFF”, the settings of “H.Para1” to “H.Para3” are handled as “OFF”.

  Here, the tone parameter (see FIG. 9B) set to “H. Mode” will be described.

  In “GLIS”, a musical sound corresponding to a keyboard area is generated by pressing an arbitrary keyboard area with a touch pen. The glissando performance is made possible by instructing the tone signal corresponding to the keyboard area to be sounded. “H. Para 1” to “H. Para 3” are all handled as “OFF”.

  In “PORTA”, a musical sound corresponding to a keyboard area is generated by pressing an arbitrary keyboard area with a touch pen, and every time a keyboard area enters another keyboard area by sliding in the horizontal direction, Portamento by controlling the pitch of the musical signal so that the pitch smoothly changes from the pitch before entering another keyboard region to the pitch corresponding to the keyboard region after entering another keyboard region by sliding movement. The performance is possible. “H. Para 1” to “H. Para 3” are all handled as “OFF”.

  “OFF” means a musical tone control pronunciation instruction corresponding to the keyboard area, even in the case of “GLIS” or “PORTA”, even if a different key area is entered by a horizontal sliding operation while sounding with one key. The settings of “H. Para1” to “H. Para3” are valid, and musical sound control is performed with respect to the sound being generated in the horizontal sliding operation.

  Returning to FIG. 9A again, the description will be continued.

  In the state shown in FIG. 9A, “PORTA” blinks when the display area of “PORTA” is touched with the touch pen 31. If it slides to the right as it is, a setting display of “H. Para *” (* indicates any of 1 to 3) is displayed. Here, “H. Para1 = CUTOF” is displayed. Next, when the display area of “CUTOF” is touched with a touch pen, “CUTOF” blinks. If you slide upward while touching, it will change to “MODUL”, “BEND”. On the other hand, if the user slides downward while touching, it changes to “RESON”, “AFTER”,. Here, when “OFF” is set, the musical tone parameter control is not performed even if the keyboard is slid in the horizontal direction during the musical tone generation.

  In this embodiment, the musical sound parameters that can be set by “H. Para *” are the same as “V. Para *” as described above. However, the parameters that should be given directionality in the control are not necessarily vertical. The horizontal setting candidates do not have to be the same, and all or some of the vertical and horizontal setting candidates may be different from each other.

  FIG. 10 is an explanatory diagram of pronunciation and musical tone control by the “keyboard” icon.

However, here
V. PARA1 = "BEND"
V. PARA2 = "PAN"
V. PARA3 = "OFF"
H. MODE = "GLIS"
H. PARA1 = "OFF"
H. PARA2 = "OFF"
H. PARA3 = "OFF"
It is assumed that it is set to.

  When the display area of the key “E” in the keyboard icon 61 shown in FIG. 10A is touched with the touch pen 31, the tone of the tone of the currently selected part is set with the “<” “>” icon 62. Pronounced with an E pitch in the octave range. While sounding, “●” as shown in FIGS. 10B and 10C is lit in the display area of the keyboard “E”.

  When sounding, the sounding message may be transmitted to an external device using MIDI or the like.

  When the user slides upward while touching, the pitch increases (V.PARA1 = “BEND”) and stereo localization according to the vertical sliding distance starting from position 1 shown in FIG. Is shifted to the right and (V.PARA2 = “PAN”) is slid downward, the pitch is lowered starting from position 2 shown in FIG. 10B and the stereo localization is shifted to the left. At this time, the changed parameter and its value are displayed in the message display area 68 (see FIG. 11; described later).

  Further, when sliding in the horizontal direction while being touched, a retrigger operation is performed for each key area at positions 3 and 4 shown in FIG.

  H. In the example shown here, PARA is all “OFF” (invalid), but if it is valid, musical tone control is performed according to the sliding distance in the horizontal direction according to the setting of “H.PARA *”.

  In this way, by performing a sliding operation while pressing the display area of the key “E”, which is the pitch finger area, the musical sound generation instruction and the value of the musical sound parameter for controlling the musical sound being generated are changed. Can do. In general, the keyboard + bender, keyboard + ribbon controller, keyboard + wheel configuration takes time to learn the operation technique. In this way, more intuitive and simple operation is possible by controlling the musical sound on the keyboard. It becomes.

  Musical sound control by these vertical and horizontal sliding operations can be controlled according to the sliding distance from the pressing point, but the pressing point is slightly different each time. There is no choice but to do. Therefore, since intuitive control becomes difficult, in the present embodiment, an effect appears when the key area is slid out of the key area where pressing is started. In this way, when the sliding operation stays within a predetermined range on the touch panel, the dead band area serves as a kind of “guide” for operation by providing a dead band that does not change the musical tone parameter. Since the position where the control effect begins to appear is fixed, it can be operated intuitively regardless of variations in the pressing start position.

  FIG. 11 is an explanatory diagram of pronunciation and musical tone control by the “keyboard” icon, which is different from FIG. 10.

  In the message display area 68 shown in FIG. 11, the change of the musical sound parameter due to the upward sliding operation after touching the touch pen with the key “E” area is schematically displayed. Here V. Para1, V. Each control state of pitch bend (BEND) and pan (PAN) set in Para 2 is represented by display symbols 111 and 112, and V.P. * Indicating “OFF” set in Para3 is displayed.

  In FIG. 11, an upward triangle mark (▲) means that the parameter is controlled in the increasing direction, and a downward triangle mark (▼) means that the parameter is controlled in the decreasing direction (not shown).

  Further H. Para1, H. Para2, H. * Indicating three “OFF” set in Para3 is also displayed.

  Thus, by displaying the change in the musical sound parameter by the sliding operation, the effect can be confirmed not only by sound but also by visual observation. In this embodiment, the message display area 68 is schematically displayed due to the size of the message display area. However, when there is a margin in the display area, the present invention is not limited to this, and the parameter value itself and the effect of the sound control are graphically displayed. It may be expressed as

  In general, there are many cases where it is practically sufficient to control the musical sound parameters together without giving independent control to each other so as to correlate with each other. Therefore, for example, one type of musical sound parameter is controlled by a vertical sliding operation, and one type of musical sound parameter is controlled by a horizontal sliding operation. A plurality of types of musical tone parameters may be simultaneously controlled by sliding operations in the direction and the horizontal direction. The present embodiment is configured to realize such control, and many musical sound parameters can be freely mixed by sliding operations in the vertical direction and the horizontal direction. Therefore, rich and innovative performance expressions that are not possible with conventional electronic musical instruments are possible.

  As described above, in the present embodiment, since a plurality of musical sound parameters controlled by the vertical and horizontal sliding motions can be selected, the control effects can be freely selected and combined according to the preference of the operator. Musical sound control not possible with conventional musical instruments becomes possible. In addition, since the direction of operation can be freely selected, for example, in the case of pitch change, the horizontal direction (that is, bender lever or glissando) is selected for keyboard operation, and the vertical direction (for example, choking) is selected for the guitarist. The operation direction most suitable for the operator can be selected.

  In this embodiment, a sound source is built in, but an external sound source may be connected via MIDI. In that case, if the MIDI messages such as pitch bend and modulation are defined, the sound source may be controlled using them, or the sound source may be controlled using a system exclusive message that can recognize the sound source. Good. Further, the sound source may be controlled by a protocol other than MIDI by connecting to the sound source via an interface other than the MIDI standard such as RS-422.

  In addition, the configuration of the present embodiment may include an automatic performance device or be connected to the outside so that musical tone control information by a sliding operation can be recorded / reproduced. The musical tone control parameter controlled by the sliding operation may be other than those described in the present embodiment. Further, in the display device according to the present embodiment, the “keyboard” icon is one octave + 1 note, but may have more keys. As the display, any liquid crystal, CRT, fluorescent display tube, LED, or the like may be used.

  Further, in the present embodiment, an analog touch panel is used, but a matrix type (digital type) transparent touch panel with sufficiently high resolution may be used. In this case, assuming that switches are arranged at all detectable positions, the position may be detected by a process similar to that of a normal mechanical switch.

  Next, a second embodiment of the present invention will be described.

  FIG. 12 is a diagram showing an operation panel provided in an automatic performance apparatus incorporating the second embodiment of the performance parameter input apparatus of the present invention.

  This automatic performance apparatus can perform automatic performance, and its basic configuration is the same as the block diagram shown in FIG. Further, the position detection technique of the touch panel constituting the operation panel is the same as that in the first embodiment described above.

  An operation panel 120 shown in FIG. 12 includes a display device 121 and a transparent touch panel 122 arranged on the display device 121.

  First, the screen displayed on the operation panel 120 will be described.

  “TEMPO” 123 displays the current performance tempo. In FIG. 12, 120 is displayed as the tempo value.

  The “PATTERN” 124 displays the currently selected pattern. Here, ROCK_24 / ORG is displayed.

  In “DRUM SET” 125, the name of the drum set assigned to the currently selected pattern is displayed. Here, “ROOM” is displayed.

  The reset icon 126 is used to return to the head of the selected pattern by pressing when the performance is stopped.

  The stop icon 127 is for stopping the pattern performance when pressed during performance.

  The play icon 128 is used to start playing the selected pattern when pressed while the performance is stopped.

  In this embodiment, a preset rhythm pattern can be selected and played automatically. The rhythm pattern is a set of 6 patterns, and is composed of 6 patterns: intro (INT), ending (END), original (ORG), variation (VAR), fill-in 1 (FL1), fill-in 2 (FL2). It is configured. These categories are called “divisions”.

  By pressing the play icon 128 and the stop icon 127, the selected pattern can be played repeatedly.

  Here, to change the performance tempo of the pattern, the display area of the tempo value in FIG. 12 is touched with a touch pen and then slid.

  In order to change the pattern type / division, the pattern name display area 124a in FIG. 12 is touched with a touch pen and then slid.

  Rhythm instruments used for rhythm performance can be assigned to each pattern (including division) in units of sets, and this set is called a “drum set”. In this drum set, an optimal one is assigned in advance for each pattern (preset set), but the assignment can be temporarily changed by an operation to be played.

  In order to change the drum set assignment, the drum set name display area 125a in FIG. 12 is touched with a touch pen and then slid.

  FIG. 13 is an explanatory diagram of the tempo changing operation on the operation panel shown in FIG.

  As shown in FIG. 13, when the tempo value display area 123a is slid in the vertical direction with the touch pen, the value can be changed by 10 for every fixed sliding distance. The value can be changed one by one.

  Therefore, the tempo can be easily adjusted with a simple operation because it is only necessary to slide up and down to make a large change and to slide left and right to make a fine adjustment.

  In this way, if parameters are roughly adjusted according to the vertical sliding distance and finely adjusted according to the horizontal sliding distance, there is no need to perform fast-forward operation when setting parameters with a wide setting range. Even in a limited area, setting can be performed easily and accurately.

  This operation method can be applied to all parameters requiring coarse adjustment and fine adjustment without being caught by this example.

  FIG. 14 is an explanatory diagram of a rhythm pattern changing operation on the operation panel shown in FIG.

  As shown in FIG. 14, the pattern type can be changed by sliding the pattern name display area 124a in the vertical direction with a touch pen, and the division can be changed by sliding in the horizontal direction.

  Therefore, if you want to select something with a different rhythm style, you can slide it up and down, and if you want to select each role in the song while fixing the rhythm style, you can slide it to the left and right. Can be selected.

  This operation method can also be applied to the setting of all parameters having elements that are conceptually highly independent and selection elements that are conceptually strongly related, without being caught by this example.

  For example, the application may be performed such that the music genre of the pattern is selected in the vertical direction, and the pattern variation is selected from the music genres selected in the horizontal direction.

  FIG. 15 is an explanatory diagram of the drum set assignment changing operation used in the rhythm pattern on the operation panel shown in FIG.

  As shown in FIG. 15, the drum set can be temporarily selected by sliding the drum set name display area 125a in the vertical direction. This is in the middle of selecting a target set while playing a pattern. This is because they don't play with other drum sets.

  Then, after making a temporary selection and sliding to the right, the drum set to be changed is confirmed and the set is actually switched.

  If it is accidentally selected, it can be returned to the previous set by releasing the touch pen from the touch panel in the temporarily selected state.

  Further, when returning to a preset (default value), it is possible to return to a preset (default value) by temporarily selecting and then sliding to the left.

  If you want to return to a preset set (default value) after performing a performance by performing a confirmation operation several times, you can return to the preset set by temporarily selecting it and then sliding it to the left.

  Therefore, according to this method, it is possible to change the setting of the rhythm set without changing the performance state carelessly, and to restore the initial setting at any time after the change, in a unified and simple operation. This operation method can also be applied to all parameters that require a confirmation operation without being caught by this example.

1 is a block diagram of an electronic musical instrument in which a first embodiment of a performance parameter input device of the present invention is incorporated. FIG. It is a figure which shows the operation panel comprised from the indicator and touch panel shown in FIG. It is a figure for demonstrating the position detection principle of the touch panel shown in FIG. It is a circuit diagram of the interface part interposed between a touch panel and CPU. It is explanatory drawing of the calibration in a touch panel. FIG. 3 is a diagram showing a display example on the operation panel shown in FIG. 2. It is a figure for demonstrating allocation operation of the timbre (instrument) to each part in an operation panel. It is explanatory drawing of operation which sets beforehand the musical tone parameter which changes when it slides on the "keyboard" icon in the vertical direction during a musical tone sound generation. It is explanatory drawing of operation which sets beforehand the musical tone parameter which changes when it slides on a "keyboard" icon in a horizontal direction during a musical tone sound generation. It is explanatory drawing of the pronunciation and musical tone control by a "keyboard" icon. FIG. 11 is an explanatory diagram of pronunciation and musical tone control using a “keyboard” icon different from FIG. 10. It is a figure which shows the operation panel with which the 2nd Embodiment of the performance parameter input device of this invention was integrated was equipped. It is explanatory drawing of tempo change operation in the operation panel shown in FIG. It is explanatory drawing of the change operation of a rhythm pattern in the operation panel shown in FIG. FIG. 13 is an explanatory diagram of a drum set assignment changing operation used in a rhythm pattern on the operation panel shown in FIG. 12.

Explanation of symbols

11, 121 Display 11a Display screen 12, 122 Touch panel 12x, 12y Sheet 12x1, 12x2, 12y1, 12y2 Terminal 13 ROM
14 CPU
15 RAM
16 Sound source 20, 120 Operation panel 31 Touch pen 32, 34 Resistor 33, 35 Capacitor 36 Interface unit 36a, 36c Tristate buffer 36b, 36d Transistor 61 “Keyboard” icon 62 “<” “>” icon 63 “OCT” icon 64 “ "V.PARA" icon 65 "H.PARA" icon 66 "INST" icon 67 "+""-" icon 68 Message display area 68a Display area

Claims (1)

A touch panel for detecting the contact position;
A display panel that is arranged on the back side of the touch panel and the display content is visually recognized through the touch panel, and the display content can be changed freely;
In a performance parameter input device for inputting performance parameters or parameter values of performance parameters according to the display content of the display panel and the operation state of the touch panel,
The touch panel surface is divided into a plurality of areas corresponding to a plurality of pressing means having different pressing areas, and in detecting the contact position on the touch panel, the contact position is in any of the plurality of areas. A contact position detection means for detecting the contact position using different detection means depending on whether there is,
The contact position detecting means scans a plurality of regions corresponding to a plurality of pressing means having different pressing areas at the same predetermined interval,
When position detection is performed in an area corresponding to a pressing means having a relatively small pressing area, the position is detected after the area is detected, compared to when position detection is performed in an area corresponding to a pressing means having a relatively large pressing area. Reduce the time to judge,
When position detection is performed in an area corresponding to a pressing means having a relatively large pressing area, the position is detected after the area is detected, compared to when position detection is performed in an area corresponding to a pressing means having a relatively small pressing area. A performance parameter input device characterized in that position detection is performed by a different position detection method of increasing the time until determination.

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