JPH07104755A - Electronic musical instrument-incorporated piano - Google Patents

Abstract

PURPOSE:To provide an electronic musical instrument-incorporated piano which eliminates the need to hole the surface, etc., of the piano for switches, etc., and does not have its outward appearance spoiled. CONSTITUTION:When it is decided that a muffler pedal 16 for setting a mode is stepped on, a sound volume setting mode or timbre setting mode is set according to the stepping-on frequency of the muffler pedal 16. When it is decided that the muffler pedal 16 is stepped on again while a loudness pedal 14 is stepped on by a specific quantity, sound volume is set corresponding to the stepping-on quantity of the loudness pedal 15 at the stepping-on timing of the muffler pedal 16. When it is decided that the muffler pedal 16 is stepped on while the loudness pedal 14 is stepped on by the specific quantity, a timbre is set according to the stepping-on quantity of the loudness pedal 14 at the stepping-on timing of the muffler pedal 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piano with a built-in electronic musical instrument, which has a mechanism for controlling and controlling an electronic sound source in addition to a normal playing mechanism for playing by striking strings.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an electronic musical instrument built-in piano in which an electronic sound source is combined with an acoustic piano so that not only a normal piano performance but also an electronic sound source can be performed (for example, Japanese Patent Laid-Open No. 63-216099). (See Japanese Patent Application No. 5-214411). According to these pianos, when playing with an electronic sound source, it is possible to stop a normal performance sound (hereinafter referred to as a string striking sound) due to a string striking operation by various blocking means (sound stopping means). Therefore, by stopping the string striking sound and listening to the performance sound from the electronic sound source through headphones or the like, there is an advantage that the performance sound does not leak to the outside and the practice at night can be freely performed.

[0003]

In such a piano with built-in electronic musical instrument, it is necessary to provide a volume switch for adjusting the amount of sound at the time of performance in order to adjust the performance by the electronic sound source, and to adjust the tone color. A tone color switch for switching may be provided.

A slide switch is usually used as the volume switch, and a tact switch or the like is used as the tone color switch. However, when these switches are provided on the surface of the piano, it is unnecessary to make holes. It took a lot of time and labor, and the switches were conspicuous, which impaired the appearance of the piano.

The present invention has been made to solve the above-mentioned problems, and provides a piano with a built-in electronic musical instrument which does not require holes to be formed in the surface of the piano for switches and the like and which does not impair the appearance of the piano. With the goal.

[0006]

To achieve this object, the invention of claim 1 incorporates an electronic musical instrument having an electronic sound source in an acoustic piano, as shown in FIG.
In an electronic musical instrument built-in piano that uses a shared keyboard during each performance, pedal movement state detection means M2 for detecting the movement state of the pedal M1 and the pedal movement state detection means when the electronic musical instrument is performing. An electronic musical instrument built-in piano, characterized by comprising: output control means M3 for adjusting an output state of a controlled object which is an output of the electronic musical instrument according to a moving state of the pedal M1 detected by M2. To do.

According to a second aspect of the present invention, in an electronic musical instrument built-in piano in which an electronic musical instrument having an electronic sound source is built into an acoustic piano and a common keyboard is used for each performance, various control objects of the electronic musical instrument are provided. In order to set the output state of the electronic instrument, a setting mode is provided for each controlled object, and as a function of the pedal, mode switching means for switching each setting mode when playing with an electronic musical instrument is provided. The main point is a piano with a built-in musical instrument.

According to a third aspect of the present invention, when a predetermined mode is set by the mode switching function of the pedal of the second aspect, as a function of another pedal, a control target in the set mode is set. A gist of an electronic musical instrument built-in piano is characterized in that output state setting means for setting an output state is provided.

Next, the respective configurations of the present invention will be described. 1. Examples of the piano include an upright piano and a grand piano, and examples of an electronic musical instrument using an electronic sound source include an electronic piano. 2. Examples of the control target include volume, which is a control amount that is adjusted in an analog manner, and switching of timbre.

3. Examples of the setting mode include a volume setting mode for setting the volume, a tone color setting mode for setting the tone color, and the like. 4. The output state of the control target in the setting mode includes, for example, the volume of the volume in the volume setting mode, the selection state of various tone colors in the tone color setting mode, and the like.

5. For example, a muffler pedal (or sostenuto pedal) is used as a pedal for switching the setting mode.
Can be adopted, and it is possible to set such that a specific mode is selected when the muffler pedal is depressed or when the muffler pedal is depressed a predetermined number of times. At the same time, when a specific mode is selected, the volume can be set and the tone color can be selected depending on the state in which another loud pedal is depressed (the amount of movement of the pedal or the number of depressions).

6. As a pedal for detecting the moving state, for example, a loud pedal can be cited, and as a means for detecting the moving state (particularly the moving amount) of the loud pedal, the light transmission amount continuously changes in the moving direction. Any thing can be used. For example, the shutter is composed of a semi-transparent filter, and the shade of the shutter changes gradually, the part of the shutter where the light does not pass is shaped like a triangle or a smooth curve, and the part where the light does not pass is a fine dot. It is possible to employ a device in which the number of dots and the size thereof are gradually changed.

[0013]

According to the present invention having the above-mentioned structure, the pedal moving state detecting means M2 detects the moving state of the pedal M1 when playing the electronic musical instrument of the electronic musical instrument built-in piano, and the detected pedal M1 is detected. The output control unit M3 adjusts the output state of the controlled object, which is the output of the electronic musical instrument, according to the moving state. As a result, it is possible to adjust the volume, for example, by depressing a predetermined pedal when playing the electronic musical instrument.

According to a second aspect of the present invention, in the electronic musical instrument built-in piano, a setting mode is provided for each controlled object in order to set the output state of various controlled objects of the electronic musical instrument, and when playing with the electronic musical instrument, With the pedal having the mode switching means, it is possible to switch to each setting mode such as a volume setting mode and a tone color setting mode.

According to the third aspect of the present invention, when the predetermined mode is set by the mode switching function of the pedal of the second aspect, another pedal having an output state setting means is used.
In each setting mode, it is possible to set the output state of the control target such as the volume level and the selection of the tone color.

[0016]

Embodiments of the present invention will now be described with reference to the drawings. Here, FIG. 2 is a block diagram showing a schematic configuration of the upright piano of the present embodiment, and FIG. 3 is an explanatory diagram showing a mechanism of operation of the upright piano.

As shown in FIG. 2, the upright piano 1 of the present embodiment is provided with a string striking mechanism 7 for striking a string in response to an operation of a key 5 of a keyboard 3 as in an ordinary piano, and is an acoustic piano. Can be played as. At the same time, the electronic tone generator 9 controlled according to the operation of the same keyboard 3 is also built in, and can be played as an electronic piano through a speaker or headphones (not shown).

The upright piano 1 includes, in addition to the above-described string striking mechanism 7 and electronic sound source 9, an amplifier 10 connected to the electronic sound source 9, a handphone terminal 11, and a speaker terminal 12.
And a blocking mechanism 13 for blocking the generation of string-striking sound by the string-striking mechanism 7 during performance by the electronic sound source 9, a loud pedal 14, a soft pedal 15, and a muffler pedal 1.
A pedal mechanism 17 composed of 6 and a control unit 19 for controlling the electronic sound source 9 in accordance with the operation of the keyboard 3 to perform a performance are provided.

Next, each of the above components will be described in detail. First, as shown in FIG. 3, the string striking mechanism 7 is similar to a conventional upright piano. That is, the string striking mechanism 7
When the key key 5 of the keyboard 3 is depressed by the player's key depression operation and the rear end 5a swings upward, the bat 25 is pushed up by the jack 23 so that the hammer shank 27 approaches the string S. Turn to. Then, when the jack 23 further rises, the bat 25 separates from the jack 23, the hammer shank 27 starts inertial movement (rotational movement), and finally the hammer 29 provided at the tip of the hammer shank 27 is moved. Strike the string S. In addition, the key 5 is
A stepped shutter 31 and key sensors 33 and 35 are provided as means for detecting an operation related to key release. still,
The structure and operation of this type of string striking mechanism 7 are disclosed in detail, for example, in Japanese Patent Application No. 5-214411.

On the other hand, the blocking mechanism 13 is also shown in FIG.
As shown in, the rail 37 is provided between the hammer shank 27 and the string S. The rail 37 is a long member extending in both left and right directions of the piano 1 (the vertical direction of the paper surface of FIG. 3), and is shown in a solid line position (operation blocking position) and dotted position (operation permitting position). ) Is movably provided by a rail drive motor (or solenoid) 38 (FIG. 2) or the like. Therefore, when the blocking mechanism 13 blocks the string-striking sound from being generated by the string-striking mechanism 7 (that is, when an electronic sound source is used for performance),
The rail 37 is fixed to the operation preventing position, and the hammer shank 27 that rotates by the inertial motion comes into contact with the rail 37 at the position indicated by the dotted line in the figure. Therefore, the hammer 29 does not strike a string, and no stringing sound is generated. The structure and operation of this type of blocking mechanism 13 are disclosed in detail in Japanese Patent Application No. 5-214411.

Further, as the pedal mechanism 17, the loud pedal 14 for separating the damper 38 from the string S to produce a sound, the soft pedal 15 for bringing the entire hammer 29 close to the string S to reduce the striking sound, the hammer 29 and the string. A muffler pedal 1 that lowers the felt 39 between S and the volume to reduce the volume.
6 and. Then, the loud pedal 14 pushes up the push rod 41 to rotate the damper 38 via the damper rod 40 and the like, and the soft pedal 15
Moves the hammer rail 43 by pushing up the push rod 42, and the muffler pedal 16 moves the push rod 44.
The felt 39 is rotated via the support member 45 by pushing up.

A movement amount sensor 46 for detecting the movement amount (depression amount) of the loud pedal 14 is attached below the loud pedal 14. This movement amount sensor 4
As shown in FIGS. 4A and 4B, 6 is composed of a shutter 47 attached to the back side of the key 5 and a photodetection section 48 attached to face the shutter 5. The shutter 5 is a plate-shaped member made of semitransparent plastic, and the lower part has a darker black color so that the amount of light transmission becomes smaller. On the other hand, in the photodetector section 48, the light emitting diode 48a and the phototransistor 48b are arranged to face each other with the shutter 5 interposed therebetween. Therefore, FIG.
As shown in (c) and (d), the output voltage Vout of the phototransistor 48b changes depending on the position of the shutter 5. Therefore, based on this output voltage Vout, the loud pedal 14 is driven.
The position and movement amount of can be detected. In particular, in this embodiment, the loud pedal 14 is set so as to function as a half pedal in the case of playing by the ordinary electronic sound source 9, but as will be described later, a specific mode is selected by depressing the muffler pedal 16. If so, it is used for volume setting and tone setting.

On the other hand, below the muffler pedal 16, as shown in FIG. 3, there is provided a selection switch 51 for switching between the volume setting mode and the tone color setting mode when the muffler pedal 16 is depressed. In the present embodiment, for example, the muffler pedal 16 is set to the volume setting mode when it is depressed once, and the tone color setting mode when it is depressed twice.

Further, as shown in FIG. 2, the control section 19 has a well-known CPU 53, ROM 55, RAM 56.
And a switch for selecting, via the input / output interface 57, the electronic sound source 9 and the key sensors 33 and 35, and the performance by the string striking mechanism 7 or the performance by the electronic sound source 9. 58
And a movement amount sensor 46 of the loud pedal 14 and a selection switch 51 of the muffler pedal 16 are connected.

When the performance of the string striking mechanism 7 is selected by the changeover switch 58, the control section 19 moves / fixes the rail 37 of the blocking mechanism 13 to the operation permitting position (see FIG. 3) so that the string striking sound is generated. Set it so that you can play. At this time, the control unit 19 does not control the electronic sound source 9. On the other hand, when the electronic switch performance of the electronic sound source 9 is selected by the changeover switch 58, the rail 37 of the blocking mechanism 13 is moved / fixed to the operation blocking position,
The electronic sound source 9 can be controlled by the control unit 19. In addition, the control unit 19 uses the key sensor 3
Performance information (data) is created according to the signals from 3, 35 and is output to the electronic sound source 9 for control. Further, various modes are selected and the volume and tone of each mode are adjusted according to the depression states of the loud pedal 14 and the muffler pedal 16.

Next, the operation of the upright piano 1 of the present embodiment having the above-mentioned configuration will be described with reference to the flowchart of FIG. First, in S100, it is determined whether or not the muffler pedal 16 for setting the mode is depressed. If an affirmative determination is made here, the process proceeds to S110, and if a negative determination is made, the process proceeds to S120.

In S120, since the mode is not set, the function of pedal operation in an ordinary electronic piano, for example, a so-called half pedal function by the loud pedal 14 (in the case of the electronic sound source 9, the volume at which the sound is resonated according to the amount of depression of the pedal is electronic) The function is set so that it can be temporarily lowered), and this processing is once terminated.

On the other hand, in S110, the muffler pedal 16
Depending on the number of times of depression, for example, if it is depressed once, the volume setting mode proceeds to S130, and if it is depressed twice, the tone color setting mode proceeds to S160.
In S130, the output of the movement amount sensor 46 of the loud pedal 14 is made to correspond to the volume switch, and in the subsequent S140, it is determined whether or not the muffler pedal 16 has been depressed again while the loud pedal 14 has been depressed by a predetermined amount. If a negative determination is made here, the process returns to S100, and if an affirmative determination is made, the process proceeds to S150.

In S150, the volume is set according to the depression amount of the loud pedal 14 at the timing when the muffler pedal 16 is depressed, and the process returns to S100. That is, by the processes of S130 to S150, the volume can be set according to the depression amount of the loud pedal 14 by a predetermined pedal operation. In place of the process of S140, for example, the loud pedal 14 is operated for a fixed time (for example, 2 seconds).
If the player stands still at a certain position, the volume may be set to the sound volume corresponding to the position at S150.

On the other hand, in S160, the output of the movement amount sensor 46 of the loud pedal 14 is made to correspond to the timbre switch, and in the following S170, the muffler pedal 16 is depressed again while the loud pedal 14 is depressed by a predetermined amount. To judge. If a negative determination is made here, the process returns to S100, and if an affirmative determination is made, the process proceeds to S180.

In S180, a tone color is set according to the depression amount of the loud pedal 14 at the timing when the muffler pedal 16 is depressed, and the process returns to S110. That is, by the processes of S160 to S180, the tone color can be set according to the depression amount of the loud pedal 14 by a predetermined pedal operation. In place of the process of S170, for example, the loud pedal 14 is operated for a fixed time (for example, 2 seconds).
When the sound stops at a certain position, a tone color corresponding to the position may be set in S180. Further, instead of S160 to S180, the timbre may be selected according to the number of times the loud pedal 14 is depressed, for example.

Thus, in this embodiment, the loud pedal 1
Since the 4 and the muffler pedal 16 are used as a volume switch and a tone color switch, the volume can be set and the tone color can be switched by operating the pedal. Thereby,
It is not necessary to make a hole in the surface of the piano for the switches and the like, and there is an effect that the appearance of the piano is not spoiled.

It is needless to say that the present invention is not limited to the above embodiments and can be implemented in various modes within the scope of the gist of the present invention. For example, in the above-described embodiment, the loud pedal and the muffler pedal are used as the volume switch and the tone color switch, but other than that, a soft pedal may be used.

Also, the shutter is attached to the key side,
On the contrary, the photodetector may be attached to the key side. Further, although the amount of light transmission is reduced toward the front end side of the shutter, conversely, the amount of light transmission may be increased toward the front end side.

As a blocking mechanism for blocking the sounding by the string striking mechanism, a rail 63 for blocking the movement of the catcher shank 61 may be provided as shown in FIG. 3, for example.
Further, the blocking mechanism does not necessarily have to block the movement of the hammer which is inertially moving. That is, as described in, for example, Japanese Patent Laid-Open No. 63-216099, the hammer rail is rotated by the pressing means to press the hammer against the string, and the locking means holds the hammer in this pressed state. Such a blocking mechanism (sound stop mechanism) may be used.

Of course, the present invention can also be applied to a grand piano incorporating an electronic musical instrument. The grand piano is described in detail in Japanese Patent Application No. 5-214411 by the present applicant.

[0037]

As described in detail above, according to the invention of claim 1, the movement state of the pedal is detected when the electronic musical instrument of the piano with built-in electronic musical instrument is played, and the detected movement state of the pedal is detected. Then, the output state of the controlled object which is the output of the electronic musical instrument is adjusted. This makes it possible to adjust the volume, for example, by depressing a predetermined pedal when playing the electronic musical instrument.

According to the second aspect of the invention, a setting mode is provided for each controlled object in order to set the output state of various controlled objects of the electronic musical instrument, and when the electronic musical instrument is played, a specific pedal is used, for example. It is possible to switch to each setting mode such as the volume setting mode and the tone color setting mode.

According to the third aspect of the present invention, when a predetermined mode is set by the pedal mode switching function of the second aspect, for example, the volume of the volume or the tone color in each setting mode is changed by another pedal. The output state of the controlled object such as selection can be set. In this way, since the pedal can be used to adjust the volume and to change the tone, for example, it is not necessary to make a hole in the surface of the piano for the switches and the appearance of the piano is not damaged. It has remarkable features.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram illustrating a configuration of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the upright piano of the present embodiment.

FIG. 3 is an explanatory diagram showing a configuration of an upright piano of the present embodiment.

FIG. 4 is an explanatory diagram showing a movement amount sensor of the present embodiment.

FIG. 5 is a flowchart showing a control process of this embodiment.

[Explanation of symbols]

1 ... Upright piano 3 ... Keyboard 5 ... Key 7 ... String striking mechanism 13 ... Blocking mechanism 14 ... Loud pedal 16 ... Muffler pedal 17 ... Pedal mechanism 19 ... Control part 46 ... Movement amount sensor 51 ... Selection switch

Claims (3)

[Claims] 1. An electronic musical instrument equipped with an electronic sound source in an acoustic piano, wherein a shared keyboard is used for each performance of the electronic musical instrument built-in piano. When the electronic musical instrument plays, the pedal movement state is set. A pedal moving state detecting means for detecting the moving state of the pedal, and an output control means for adjusting the output state of the controlled object which is the output of the electronic musical instrument according to the moving state of the pedal detected by the pedal moving state detecting means. A piano with a built-in electronic musical instrument. 2. In an electronic musical instrument built-in piano in which an electronic musical instrument having an electronic sound source is built into an acoustic piano and a common keyboard is used for each performance, the output states of various controlled objects of the electronic musical instrument are set. In order to do so, a setting mode is provided for each controlled object, and a mode switching means for switching each setting mode when playing with an electronic musical instrument is provided as a function of the pedal. 3. When the pedal mode switching function according to claim 2 is set to a predetermined mode, the output state of the controlled object in the set mode is set as a function of another pedal. A piano with a built-in electronic musical instrument, which is provided with output state setting means.