JPH0446319Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a composite musical instrument, and is particularly applicable to those having a mechanical sound source and an electronic sound source.

[Summary of the idea]

This invention is a composite musical instrument that has a mechanical sound source and an electronic sound source. By using a common tuning device, the pitch can be changed and controlled for the musical sound signal of the mechanical sound source system and the musical sound signal of the electronic sound source system.
The pitch of musical tones can be easily changed as necessary by simple operations.

[Conventional technology]

Conventional composite instruments include mechanical sound sources (sound sources that generate musical sounds by vibrating vibrating bodies such as strings and pipe tone plates) and electronic sound sources (sound sources that generate musical sounds using electronic means). A system has been proposed which is equipped with a mechanical sound source and an electronic sound source, and is capable of synthesizing musical sounds generated by a mechanical sound source and an electronic sound source. For example, in US Patent No. 2933004,
A composite musical instrument is disclosed that combines a piano that constitutes a mechanical sound source and an electronic musical instrument that constitutes an electronic sound source. This composite musical instrument uses a common keyboard to simultaneously produce a mechanical sound source sound and an electronic sound source sound of corresponding pitches for each key pressed.

[Problem that the invention attempts to solve]

When trying to perform in ensemble with other instruments using a composite instrument that generates a composite sound consisting of the musical tones of a mechanical sound source and the musical tones of an electronic sound source, it is necessary to change the pitch of the musical tones of the composite instrument to the pitch of the musical tones of the other instruments. However, with conventional composite instruments, the pitch of the mechanical sound source and the pitch of the electronic sound source had to be tuned independently each time before playing in ensemble, which was cumbersome.

This invention was made in consideration of the above points, and is intended to propose a composite musical instrument that allows tuning of musical tones from a mechanical sound source and musical sounds from an electronic sound source through simple operations.

[Means for solving problems]

In order to solve this problem, this invention includes a performance operation section 1, a mechanical sound source device 3 having a vibrating body that vibrates in response to the performance operation of the performance operation section 1, and a mechanical sound source device 3 that a pick-up device 6 for obtaining a pick-up signal S1 corresponding to a body vibration sound; a frequency shift circuit 8 for obtaining a first musical tone signal MS1 by shifting the frequency of the pick-up signal S1 in accordance with a pitch adjustment signal S4; Performance information output circuits 5 and 11 that output performance information corresponding to the performance operation of the operating section 1, and a second musical tone signal MS2 corresponding to the performance information and whose pitch is controlled by the pitch adjustment signal S4. an electronic sound source device 12 that generates a sound, a tuning device 21 that has a tuning operation means 22 and sends out the pitch adjustment signal S4 in response to the operation of the tuning operation means 22;
Musical tone generating devices 9 and 14 are provided which generate musical tones corresponding to the first and second musical tone signals MS1 and MS2.

[Effect]

Pitch adjustment signal S4 obtained from tuning device 21
Accordingly, the frequency shift circuit 8 of the mechanical sound source musical tone system 2
At the same time, the frequency of the musical tone signal MS1 of the electronic sound source musical tone system 4 is controlled, so that the frequency of the musical tone signal MS2 of the electronic sound source musical tone system 4 is controlled.
The pitches of the first musical tone obtained from the electronic sound source musical tone system 4 and the second musical tone obtained from the electronic sound source musical tone system 4 are controlled to be changed simultaneously and by the same amount.

Thereby, the performer can simultaneously tune the pitches of the two musical tones by an arbitrary amount as needed by simply operating the tuning device 21 common to the mechanical tone source musical tone system 2 and the electronic tone source musical tone system 4.

〔Example〕

An embodiment in which this invention is applied to a composite musical instrument formed by combining an electric piano as a mechanical sound source musical tone system and an electronic keyboard instrument as an electronic sound source musical tone system will be described below in detail with reference to the drawings.

In the figure, reference numeral 1 denotes a keyboard, which causes a mechanical sound source device 3 of a mechanical sound source musical tone system 2 and a key switch circuit 5 of an electronic sound source musical tone system 4 to operate in conjunction with each other. The mechanical sound source device 3 has a piano string as a vibrating body that generates a vibration sound, and when a key is operated on the keyboard 1, a corresponding hammer is driven through the action mechanism of the corresponding key, so that a corresponding hammer responds accordingly. The strings vibrate.
This string vibration is converted into a pick-up signal (electrical signal) S1 in a pick-up device 6, and this pick-up signal S1 is sent to a sound system 9 as a first musical tone signal MS1 via an amplifier circuit 7 and a frequency shift circuit 8. As a result, a piano sound is produced from the sound system 9.

On the other hand, the key switch circuit 5 is provided corresponding to each key of the keyboard 1, and has a plurality of key switches that operate when the corresponding keys are operated, and detects the operated key switch by the key press detection circuit 11. Key code data S representing the key operated by
2 is generated and inputted to the electronic sound source device 12. The electronic sound source device 12 receives input key code data S.
2, a musical tone signal MS2 corresponding to the pitch of the pressed key is generated. This electronic sound source device 12
is given performance condition data S3 from the performance condition input device 13.

Here, the performance condition input device 13 includes a tone selection switch, an effect selection switch, a volume adjustment operator, etc. arranged on the operation panel surface, and is used by the performer to generate musical tone signals to be generated by the electronic sound source device 12.
The MS2's tone, effects, volume, etc. can be selected and adjusted according to preference.

This musical sound signal MS2 is converted into a musical sound in the sound system 14, and as a result, a piano sound generated in the sound system 9 of the mechanical sound source musical sound system 2 and a sound system 1 of the electronic sound source musical sound system 4 are generated.
An ensemble effect can be obtained by the electronic musical tones generated in step 4.

In addition to the above configuration, this composite instrument has a tuning device for adjusting the pitch of each musical tone of the mechanical sound source musical tone system 2 and the electronic sound source musical tone system 4 to the pitch of musical tones of other instruments that play in ensemble with the composite instrument, for example. It has 21. The tuning device 21 has a tuning volume 22 as a tuning operation means, and a tuning data generation circuit 23, and the tuning data S4 corresponding to the operating position (adjustment position) of the tuning volume 22 is frequency-biased. The signal is supplied to the transfer circuit 8 and the electronic sound source device 12 as a pitch adjustment signal.

Here, the frequency shift circuit 8 shifts the frequency of the pick-up signal S1 sent from the pick-up device 6 upward or downward by a shift amount corresponding to the pitch adjustment signal S4, thereby causing the sound system 9 to generate sound. The pitch of the musical tone to be played is changed and controlled according to the adjustment position of the tuning volume 22.

The electronic sound source device 12 also receives a pitch adjustment signal S.
4 adjusts the frequency of the clock pulse for forming a musical tone signal obtained from a mask oscillator, for example, thereby controlling the frequency of the generated musical tone signal MS2 in accordance with the adjustment position of the tuning volume 22, thus controlling the sound system 14. It is possible to adjust the pitch of the electronic musical instrument sound produced by the .

In this way, according to the composite musical instrument of this embodiment, the pitch of the musical tone signal MS1 of the mechanical sound source musical tone system 2 and the musical tone signal MS2 of the electronic sound source musical tone system 4 can be tuned using the common tuning device 21. Therefore, by simply adjusting the tuning volume 22, the pitch of the two musical tones obtained from the sound systems 9 and 14 can be tuned to the pitch of the musical tones of the other instruments playing in the ensemble all at once. can.

In the above-mentioned embodiment, the mechanical sound source device 3 uses a vibration sound generating means of a piano, but instead of this, other vibration sound generating means such as an organ, a cembalo, etc. may be used. The same effect as the above case can also be obtained.

In addition, in the above embodiment, a case has been described in which the sound systems 9 and 14 are provided for the mechanical sound source musical tone system 2 and the electronic sound source musical tone system 4, respectively. A sound system may also be provided.

Further, in the above embodiment, the pitch adjustment signal S4 of various values can be generated by using the volume 22 as a tuning operation means, but instead of this, a multi-stage changeover switch can be used, etc. Any structure capable of generating pitch adjustment signals necessary for tuning may be used.

Furthermore, in the above embodiment, the pitch adjustment signal S4 may be an analog signal or a digital signal, and in some cases, the pitch adjustment signal S4 for the mechanical sound source musical tone system 2 and the electronic sound source musical tone system 4 may be
One may be an analog signal and the other may be a digital signal.

[Effect of idea]

As described above, according to this invention, the pitch of the musical tones of both mechanical tone generators can be adjusted at once by using a tuning device that is provided in common for a mechanical tone generator musical tone system having a mechanical tone generator device and an electronic tone generator musical tone system having an electronic tone generator device. By making it adjustable, the 2
To make it possible to tune two musical tones at once by a simple operation.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of a compound musical instrument according to this invention. 2... Mechanical sound source musical tone system, 3... Mechanical sound source device,
4...Electronic sound source musical tone system, 5...Key switch circuit, 6...Pickup device, 8...Frequency shift circuit, 9, 14...Sound system, 11...
Key press detection circuit, 12...Electronic sound source device, 21...
Tuning device, 22...Tuning volume, 2
3...Tuning data generation circuit.

Claims (1)

[Claims for Utility Model Registration] (a) a performance operation section; (b) a mechanical sound source device having a vibrating body that vibrates in response to the performance operation of the performance operation section; a pick-up device for obtaining a corresponding pick-up signal; (d) a frequency shift circuit for obtaining a first musical tone signal by shifting the frequency of the pick-up signal in accordance with a pitch adjustment signal; and (e) a frequency shift circuit for obtaining a first musical tone signal; (f) an electronic sound source device that generates a second musical tone signal corresponding to the performance information and whose pitch is controlled by a pitch adjustment signal; (g) a tuning device having a tuning operation means and transmitting the pitch adjustment signal in response to the operation of the tuning operation means; (h) musical tones corresponding to the first and second musical tone signals; A composite musical instrument characterized by comprising a musical tone generating device that generates a musical tone.