JPS6232794B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic performance device that selects a preset piece of music, reads it out from a memory, supplies predetermined musical tone information to a musical tone generating section, and automatically plays the musical piece.

Since conventional programmable automatic performance devices automatically play music according to a predetermined tempo clock and volume, the output musical sounds are monotonous and lack interest.

Therefore, even as a performer, he is unable to incorporate his own unique emotions into the performance of the piece of music, making it feel like he is operating a machine.

This invention has been made in view of the above circumstances, and uses a conductor's baton as a means of transferring the performer's performance emotion when reading and playing a preset piece of music.
The present invention aims to provide an automatic performance device that controls the performance tempo and volume of a musical piece using the movement of the conductor's baton.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments. In the figure, reference numeral 1 indicates a baton having a structure as described in detail below. That is, this baton 1 is hollow inside and is equipped with a weight 2 that can be moved in the longitudinal direction.Tension coil springs 3, 3 are provided at both ends of the weight 2, and one of the coil springs 3, 3 is It is connected and fixed to an internally fixed bracket 4, and the other side is connected to a magnet 5a on the Hall element 5 side.

Therefore, when the weight 2 moves within the baton 1, the Hall element 5 changes the output voltage as shown in FIG. 3 due to a change in magnetic flux density due to a change in the position of the magnet 5a. Therefore, when swinging the baton 1, a large acceleration acts on the baton 1 at the beginning and end of the swing, the weight 2 moves within the baton 1, and the output voltage of the Hall element 5 increases at every beat. Changes greatly. The above output voltage is differentiated by a CR differentiation circuit 6 shown in FIG. The signal obtained via the converter 7 is processed by a processing circuit 8 such as a logic circuit or a well-known microprocessor in a range of 100 m·sec to several seconds.
It is divided into frame sections of 100 msec, and the timing of each peak level and the absolute value and polarity of the level at that time are detected. Then, the detected value of each frame section is compared with the detected value of the previous frame section, and output to the next stage is made only when the peak is larger than the previous frame. Further, the detected signal corresponding to the acceleration of the weight 2 inside the baton is limited to the + side, and the - side is discarded. This corresponds to the playing style and also prevents chattering due to vibration of the springs 3, 3. What is output from the processing circuit 8 are peak level data and a peak timing signal, and the peak timing signal is given to a tempo clock generator 9, which outputs a tempo clock to produce a desired piece of music. It is applied to a preset automatic performance memory 10 (consisting of RAM, etc.). However, in this case, the movement of the baton 1 is basically one beat at a time, and the peak timing signal also matches this, so before performing, practice swinging in advance and generate the peak timing signal. Then, this signal is given to the tempo clock generator 9, and the start signal of the tempo clock is used as a read command for the automatic performance memory 10. In other words, the tempo obtained by practice swinging is detected in advance, and then the control unit is used to start the performance, the cycle of the previous beat is memorized, and the cycle of the next beat is predicted using that value. However, the tempo clock generating section 9 includes means for creating minute clocks such as 1/4 beat and 1/8 beat based on the expected tempo. The automatic performance memory 10 is controlled by a control switch 11 as is well known.
The stored information of the music piece selected under the control of is sequentially given to the musical tone generator 12 in accordance with the tempo clock, and is decoded as a signal of a predetermined pitch and timbre. In this case, a gate signal is supplied from the control switch 11 to the musical tone generating section 12.
A musical tone signal is supplied from the musical tone generation section 12 to the volume control section 13, and since the volume control section 13 is supplied with peak level data from the processing circuit 8, the musical tone signal includes data indicating changes in volume. The signal is added, and the resulting signal is provided to the acoustic transducer 14. The acoustic conversion section 14
Then convert the given digital signal to analog,
The output is given to the speaker 15.

Incidentally, the configuration of the baton 1 is not limited to the above embodiment, and the point is that the amount of change in the movement element provided in the baton is detected to obtain a control signal according to the commanding motion. It's fine as long as it's something.

In addition, the preset songs may be inputted into a storage means such as RAM, for example, by keyboard operation, as in the above embodiment, and various other modifications and applications are possible without departing from the gist of the present invention. Of course it is.

As described in detail above, the present invention generates a corresponding tempo clock signal based on an operation timing signal detected by a timing detection means provided on a baton that is operated in swing, and detects the generation timing of this tempo clock signal. Accordingly, since the musical sound data stored in the musical sound data storage means is configured to be read out, the reading tempo speed of the musical sound data is determined in accordance with the swinging operation timing of the baton. can do. Therefore,
The conductor can fully empathize with the speed of the performance tempo through the swing operation timing during the swing operation of the baton.

Further, the present invention controls the volume of the musical tone generated by the musical tone generating means based on the level data corresponding to the amount of change in the rocking operation detected by the detection means provided on the baton that is operated to swing. With this configuration, the volume of the generated musical sound can be freely changed in accordance with the amount of change in the swinging operation of the baton. Therefore, it is possible to achieve the effect that the conductor can fully empathize with the volume of the generated musical tones constituting the music being played.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a baton showing an embodiment of the present invention, FIG. 2 is a control block diagram of the present invention, and FIG. 3 is a chart showing the relationship between the operation of the baton and the output voltage. be. DESCRIPTION OF SYMBOLS 1... Conductor's baton, 5... Hall element, 8... Processing circuit, 9... Tempo clock generating section, 12... Musical tone generating section, 13... Volume control section, 14... Acoustic conversion section.

Claims (1)

[Scope of Claims] 1. Continuously reading the musical tone data from a musical tone data storage means storing continuous musical tone data,
In an automatic performance device that automatically generates a musical tone corresponding to the musical tone data from the musical tone generating means, an oscillation is performed to determine the speed of the reading tempo of the musical tone data to be continuously read out from the musical tone data storage means. A baton to be operated; a timing detection means provided on the baton for detecting the operation timing of the swinging operation of the baton; and an operation timing corresponding to the operation timing detected by the timing detection means. a control means for outputting a signal and controlling the operation timing signal to generate a tempo clock signal for determining the reading timing of the musical tone data from the musical tone data storage means; and based on the control of the control means, An automatic performance device comprising: tempo clock signal generating means for generating a tempo clock signal corresponding to the operation timing and reading musical tone data from the musical tone data storage means in accordance with the generation timing of the tempo clock signal. 2. In the automatic performance device according to claim 1, the timing detection means detects, as the operation timing, a timing at which a peak of the swinging operation speed occurs when the baton is swinging. An automatic performance device featuring: 3. Continuously reading out the musical tone data from the musical tone data storage means storing the continuous musical tone data,
In an automatic performance device that automatically generates a musical tone corresponding to the musical tone data from a musical tone generating means, a swinging operation is performed to determine the readout tempo speed of the musical tone data to be continuously read out from the musical tone data storage means. a conducting baton, a detecting means provided on the baton to detect the operating timing and the amount of change in the swinging operation of the conducting baton, and a detecting means corresponding to the operating timing detected by the detecting means. control means for controlling the control means to output an operation timing signal to perform the operation, and generate a tempo clock signal for determining the readout timing of musical tone data from the musical tone data storage means based on the operation timing signal; tempo clock signal generating means for generating a tempo clock signal corresponding to the operation timing based on the operation timing and reading musical tone data from the musical tone data storage means in accordance with the generation timing of the tempo clock signal; an automatic performance device comprising: a volume control means for controlling the volume of musical tones generated by the musical tone generating means based on level data corresponding to the amount of change in the rocking operation. 4. The automatic performance device according to claim 3, wherein the detection means detects, as the level data, a peak level of a change in swing operation when the conductor baton is swing operated. automatic performance device.