JP2798084B2 - Automatic rhythm playing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic rhythm playing device for automatically generating percussion instrument sounds, and more particularly, to a player storing a rhythm performance by a percussion instrument sound by himself / herself. The present invention relates to an automatic rhythm playing device that can be used. 2. Description of the Related Art Conventionally, this type of apparatus has been disclosed in, for example,
As shown in Japanese Patent Application Laid-Open No. 3-37395, data representing the operation of the operating element corresponding to the type of percussion instrument is sequentially written to a storage device with the passage of time, and the data written to the storage device is sequentially read with the passage of time. An automatic rhythm performance is performed by generating a percussion instrument sound signal based on the data. However, in the above-mentioned conventional apparatus, only data representing the operation of the operating element is written in the storage device, and the percussion instrument sound source is driven by the data representing this operation. Therefore, the intensity (volume) of the generated percussion instrument sound was constant, the strength of the rhythm to be played was not added, and the rhythm performance was monotonous. [0004] The present invention has been devised in order to address the above-mentioned problem, and an object of the present invention is to provide an automatic rhythm performance device which realizes a rhythm performance rich in musicality without monotonousness. [0005] In order to achieve the above-mentioned object, the structural features of the present invention include a plurality of operators corresponding to a plurality of types of percussion instruments, and each of the plurality of operators. A touch detection unit that detects the operation intensity and outputs touch intensity data respectively representing the detected operation intensity, a storage device, and responds to the operation of the plurality of operators, respectively, and is detected by the touch detection unit. Writing means for combining the touch intensity data indicating the operation intensity of the operated operator and the percussion instrument type data indicating the percussion instrument type corresponding to the operated operator, and sequentially writing the data into the storage device over time. Reading means for sequentially reading out the touch intensity data and percussion instrument type data stored in the storage device over time; and reading out by the reading means. Percussion sound source means for generating a percussion instrument sound signal corresponding to the percussion instrument represented by the percussion instrument type data at an intensity corresponding to the touch intensity data. In the present invention constructed as described above, when the player operates one of a plurality of operators corresponding to a plurality of percussion instrument types, the touch detection means is operated by the operator. The operation intensity is detected, and touch intensity data representing the detected operation intensity is output. Then, the writing means responds to the operation of the plurality of operating elements, and corresponds to touch intensity data which is detected by the touch detecting means and indicates the operation intensity of the operated operating element, and which corresponds to the operated operating element. In combination with the percussion instrument type data representing the percussion instrument type, the data is sequentially written to the storage device over time. This allows
The touch intensity data and the percussion instrument type data are combined and recorded in the storage device over time. on the other hand,
With respect to the reproduction of the recorded data, the reading means sequentially reads out the touch intensity data and the percussion instrument type data stored in the storage device with time, and the percussion instrument sound source means is represented by the read percussion instrument type data. A percussion sound signal corresponding to the percussion instrument generated is generated with an intensity corresponding to the touch intensity data. As described above, according to the present invention, the intensity of operation corresponding to the detected operation intensity is given to the automatically generated rhythm sound while the operation intensity of the plurality of operators is detected. Therefore, the monotony of the rhythm performance is eliminated, and a rhythm performance rich in musicality can be realized. Further, according to the present invention, the touch intensity data representing the operation intensity of the operator and the percussion instrument type data representing the percussion instrument type corresponding to the operated operator are written in the storage device in combination. Touch data can be stored in a single storage area by mixing touch intensity data relating to a plurality of types of percussion instruments without storing the data separately for each type of percussion instrument. Saves space. An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show the configuration. In a percussion instrument group 11, a plurality of types of percussion instruments 11a, 11b... For example, piezoelectric sensors,
Pickups 12a, 12b... Such as microphones are attached. And these percussion instruments 11a, 1
.. Are operated, a pickup signal corresponding to the percussion state or the generated vibration state of the percussion instrument operated is obtained. This pickup signal is transmitted to each of the pickups 12a, 12b.
..Corresponding to each of them, taken out as a vibration wave signal in an amplitude modulation state corresponding to a striking strength, a vibration damping state,
Each pickup signal is an envelope forming circuit 1 composed of a plurality of rectifier circuits respectively corresponding to each percussion instrument.
3 is supplied. Then, the envelope forming circuit 1
From 3, an envelope waveform signal corresponding to the performance state of the percussion instrument that has been operated is extracted for each percussion instrument type. In addition to the actual percussion instrument group 11, there is provided a hand percussion 14 having a plurality of push-button switches 14a, 14b,... Corresponding to the respective types of percussion instruments. 1
4b... By selectively operating the pickups 12a, 12b,.
・ Pickup signal similar to the signal from The pickup signal from the hand percussion 14 is extracted from the touch detection circuit 15 corresponding to each of the switches 14a, 14b,. The hand percussion 14 is selectively used as appropriate with the percussion instrument group 11.
When an actual performer plays 1, an output signal is extracted from the envelope forming circuit 13 as model performance data. Output signals from the envelope forming circuit 13 and the touch detection circuit 15 corresponding to the operation of the selectively used percussion instrument group 11 or the hand percussion 14 are grouped for each type of percussion instrument. 16 sample and hold circuits 16
a, 16b... and at the same time
a, 17b,... The differentiating circuits 17a, 17a,
In 17b..., The rising edge of the envelope waveform signal corresponding to the performance of the corresponding percussion instrument is detected, a differentiated pulse signal is generated, and a sampling command is supplied to the corresponding sample and hold circuits of the sample and hold circuit group 16. For example, the cymbal 1 in the percussion instrument group 11
1a is hit, the envelope forming circuit 1 responds to the pickup signal from the pickup 12a.
3, an output signal is generated, and the signal is supplied to the sample hold circuit 16a and the differentiating circuit 17a. Therefore, a signal of a level corresponding to the striking strength of the cymbal 11a that has been played is sampled and held in the sample-and-hold circuit 16a by the sampling pulse from the differentiating circuit 17a. That is, in accordance with the operation state of the percussion instrument group 11 or the hand percussion 14, a signal corresponding to the operation intensity is
The sample and hold circuits 16a, 16b,... Of the sample and hold circuit group 16 are selectively sampled and held. Then, the sample and hold circuit 16
are supplied to the multiplexer 18. The differentiated pulse signals from the differentiating circuits 17a, 17b,.
Write control register 19 comprising 9a, 19b,.
And a flip-flop circuit corresponding to the differentiated pulse is set. A set output signal corresponding to a performance operation for each percussion instrument type from the control register 19 is supplied to a write control circuit 20. The write control circuit 20 gives a command to the multiplexer 18 corresponding to the set flip-flop circuit, sequentially reads the sampling data of the corresponding sample-hold circuit, and converts the sampled data into a digital signal by the A / D conversion circuit 21. I do. At the same time, with the reading of the sampling data, the corresponding sample hold circuit is cleared and the corresponding flip-flop circuit is reset. In this case, in the write control circuit 20, the multiplexer 18
A conversion start command is given to the A / D conversion circuit 21 together with the select command for the A / D conversion circuit 21.
At the end of the D conversion operation, an end signal is supplied to the write control circuit 20 to sequentially select the sampling data from the sample and hold circuit group 16 and A / D convert the data in series and take it out. The A / D converted digital data corresponding to the performance state of each percussion instrument is supplied to the storage device 22 as write data. In this case, the write control circuit 20 is driven by a system clock φ and reads a signal from the control register 19 in accordance with the clock φ. And the playing strength data of the percussion instrument played is A / D
The state is such that it is taken out of the conversion circuit 21. The storage device 22 is composed of, for example, a RAM, and data corresponding to the type of percussion instrument is supplied from the write control circuit 20 to the storage device 22 in response to a command to the multiplexer 18. It designates which percussion instrument data the output digital data from the conversion circuit 21 is. The storage device 22 stores a tempo clock signal TCL from the tempo oscillator 23.
The count data from the progress counter 24 for counting the number of percussion instruments is also supplied as timing information, and the data corresponding to the level of the percussion instrument sound from the A / D conversion circuit 21 and the timing information combined with the percussion instrument type data from the control circuit 20 are stored. It is supplied to the device 22. When the write command switch 25 is turned on as shown in FIG.
6 corresponding to the .DELTA.WTM signal generated by the control circuit 6 and the turning on of the performance command switch 27 shown in FIG.
OR circuit 29 supplied with the ΔPLY signal obtained from
Is reset and initialized by the output signal from
For example, it counts timing information such as the number of measures and the number of beats since the writing switch 25 or the performance command switch 27 is turned on. The write control circuit 20 further controls the multiplexer 1 according to a signal from the write control register 19.
8 and supplies write data to the storage device 22, clears the sample and hold circuit for storing percussion instrument type data corresponding to the written data in the sample and hold circuit group 16, and clears the control register 19
Of the corresponding flip-flop circuit is reset. The clear command from the write control circuit 20 is detected by the OR circuit 30, and this detection signal is supplied to an AND circuit 31 to which a signal WTM generated when the write switch 25 is turned on is supplied. AND circuit 31
Is a write command W to the storage device 22.
Provided as T. In this case, the storage device 22 is supplied with address data from the address counter 32, and the address counter 32
Is incremented by a clock signal obtained through the OR circuit 33. The address counter 32 has an OR circuit 34 to which the signals ΔWTM and ΔPLY are supplied.
Is reset to the initial state by the output signal from. That is, when writing and recording rhythm performance information, the write command switch 25 shown in FIG. 3A is set to be turned on, and a signal .DELTA.WTM is generated in accordance with the turning-on operation, and a progress counter 24 is generated. Then, the address counter 32 is reset and initialized. Then, in this state, the performance by the percussion instrument group 11 or the performance operation by the hand percussion 14 is started. And
For example, if the cymbal 11a in the percussion instrument group 11 is hit, a signal corresponding to the hitting strength is picked up by the pickup 12a, and the picked-up signal is formed into an envelope waveform by the envelope forming circuit 13. Then, a differentiated pulse signal corresponding to the cymbal is generated from the differentiating circuit 17 in accordance with the generation of the envelope waveform, and the striking strength of the cymbal 11a corresponding to the envelope signal, that is, the striking strength of the cymbal 11a corresponding to the envelope signal is generated in the sample and hold circuit 16a of the sample and hold circuit group 16. Data corresponding to the touch intensity is sampled and held. The differentiating circuit 17
The output signal from sets the flip-flop circuit 19a corresponding to the cymbal of the write control register 19,
When the flip-flop circuit 19a is set, an output signal is supplied to the write control circuit 20. The write control circuit 20 drives the multiplexer 18 in response to the signal from the control register 19, and
A signal corresponding to the touch intensity on the cymbal 11a sampled at 6a is read, and the A / D conversion circuit 21
Is supplied to the storage device 22 via the. At this time, the write control circuit 20 responds to the signal detection from the flip-flop circuit 19a,
The data output from the A / D conversion circuit 21 is a cymbal 1
A percussion instrument type signal representing that the signal is of the type 1a is added to the storage device 22, and timing information at that time is supplied from the progress counter 24. In such a state, the write control circuit 20
Generates a clear signal, resets the sample and hold circuit 16a and the flip-flop circuit 19a, obtains an output signal from the OR circuit 30, and generates a signal WT generated when the write command switch 25 is turned on.
A write command WT is given to the storage device 22 via an AND circuit 31 whose gate is opened at M. The output signal from the AND circuit 31 increments the address counter 32. For example, when the performance of the cymbal 11a is first performed, the address data of the address 1 is given to the storage device 22, and the A / D is supplied to the address 1. The converted touch data, percussion instrument type data, and further timing information are written and stored. In this way, in accordance with the rhythm performance by the actual performer in the percussion instrument group 11, percussion instrument performance information comprising a combination of percussion instrument types, touch strengths, and timing data that have been operated is stored in the storage device. 22 is written and stored. In this case, when two or more types of percussion instruments are played at the same time, the touch strength of each of the played percussion instruments is sampled by the corresponding sample / hold circuit of the sample / hold circuit group 16 and is commanded by the write control circuit 20. The data is read out by the multiplexer 18 in accordance with the clock φ in order, A / D converted, and written into the storage device 22. Also, in the case of the percussion operation in the hand percussion 14, similarly to the case of the performance in the actual percussion instrument group 11, the percussion instrument performance information including the combination of the percussion instrument type, the touch strength and the timing data. Is written and stored in the storage device 22. The written information stored in the storage device 22 is read out by turning on the performance command switch 27 shown in FIG. 3B, and is provided for automatic rhythm performance. That is, in the state where the write state as described above is completed and the switch 25 is opened and the switch 27 is turned on, no output signal is generated from the AND circuit 31 and the storage device 22 is set to the read state. You. The signal ΔPLY generated when the switch 27 is turned on
The address counter 32 is reset and initialized, and a step-in command is given to the address counter 32 via an OR circuit 33 from a delay circuit 35 composed of a delayed flip-flop to which the ΔPLY signal is supplied. The percussion instrument performance information at the address is read. The touch intensity data in the performance information read from the storage device 22 is converted into an analog signal by a D / A conversion circuit 36 and supplied to a distribution circuit 37.
The distribution circuit 37 is supplied with percussion instrument type data simultaneously read from the storage device 22 as distribution data, and associates the touch intensity data from the D / A conversion circuit 36 with the percussion instrument type. Further, the timing information read simultaneously from the storage device 22 is supplied to the comparison circuit 38. The timing information from the progress counter 24, which is also reset by the ΔPLY signal and thereafter counted by the tempo clock signal TCL, is supplied to the comparison circuit 38, and the timing coincides with the timing information read from the storage device 22. , An equal signal EQ is generated from the comparison circuit 38, and the equal signal EQ is supplied to the distribution circuit 37. Then, the touch intensity data corresponding to the percussion instrument type is read and the percussion instrument sound source circuit 39 is driven.
Thus, the performance sound of the percussion instrument sound is generated at an intensity corresponding to the touch intensity data. The equal signal E from the comparison circuit 38
The signal Q is supplied to an AND circuit 42 whose gate is opened by a signal PLY generated when the switch 27 is turned on. The output signal from the AND circuit 42 is supplied to the address counter 32 as an address increment signal, and is stored. Device 22
, The next percussion instrument performance information is read. As described above, percussion instrument performance information is read from the storage device 22 in accordance with the timing information, and the percussion instrument sound source circuit 39 is driven to perform the model rhythm performance or the hand percussion 1 in the percussion instrument group 11.
The rhythm performance corresponding to the performance operation in No. 4 is reproduced. An output signal from the distribution circuit 37 is supplied to a drive circuit 43, and each of the percussion instruments 1 of the percussion instrument group 11 is provided.
.. Are automatically performed according to the touch intensity, an automatic performance using an actual percussion instrument can be realized instead of the rhythm performance from the electronic speaker 41.
Further, the touch intensity data for each percussion instrument sound of the percussion instrument group 11 or the hand percussion 14 obtained from the envelope forming circuit 13 and the touch detection circuit 15 is supplied to the percussion instrument sound source circuit 39. Can be. Further, data of the touch strength and the type of percussion instrument of the percussion instrument performance information read out from the storage device 22 as described above are supplied to the control circuit 44, and the display device 45 responds to the readout timing and the type of percussion instrument. For example, the touch intensity can be displayed by a number or the like, and by controlling the printer 46, the touch intensity is printed and expressed by a number on a display line for each type of percussion instrument that represents the passage of time. You can also.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram showing a part of an automatic rhythm playing device according to an embodiment of the present invention. FIG. 2 is a configuration diagram showing another portion of the automatic rhythm performance device. FIGS. 3A and 3B are circuit diagrams showing a circuit for generating a write command and a performance command for the rhythm performance device. [Description of Signs] 11 ... percussion instrument group, 12a, 12b ... pickup, 13 ... envelope forming circuit, 14 ... hand percussion, 15 ... touch detection circuit, 16 ...
..Sample hold circuit group, 17 ... differential circuit group,
18 multiplexer, 19 write control register, 20 write control circuit, 22 storage device, 24 progress counter, 32 address counter, 37 distribution circuit, 38 ... Comparison circuit, 3
9 percussion sound source circuit.

Claims (1)

(57) [Claims] A plurality of operators corresponding to a plurality of percussion instrument types, touch detection means for detecting respective operation intensities of the plurality of operators and outputting touch intensity data respectively representing the detected operation intensities; And touch intensity data representing the operation intensity of the operated operator detected and detected by the touch detection means, respectively, responding to the operation of the plurality of operators, and a percussion instrument type corresponding to the operated operator. Writing means for sequentially writing the percussion instrument type data into the storage device over time, reading means for sequentially reading out the touch intensity data and percussion type data stored in the storage device over time, A percussion instrument sound signal corresponding to the percussion instrument represented by the percussion instrument type data read by the reading means is matched with the touch intensity data. Automatic rhythm performance apparatus characterized by comprising a percussion sound source means for generating at the intensity.