KR950010851B1 - Electronic keyboard musical instruments for using personal computer - Google Patents

Abstract

a keyboard unit provided with a switch turned on/off, for outputting note information; a parallel cable for supplying the note information to a personal computer in a parallel data format; a parallel interface for receiving a key scancode value as the note information inputted through the parallel cable; a key scancode value input unit for supplying the key scancode value to a data converting unit; the data converting unit for recognizing a pressed key corresponding to the key scancode value, digital-processing the code value to convert the digital signal into instrument sound data; a sound source data code output unit for outputting the instrument sound data outputted from the data converting unit as a sound source data code; a sound source module for generating instrument sound of tone corresponding to the sound source data code; and a speaker for outputting the instrument sound generated from the sound source module.

Description

Electronic keyboard instrument and instrument sound output control method using personal computer

1 is a block diagram of a first embodiment of an electronic keyboard musical instrument of the present invention.

2 is a flowchart of a method for controlling musical instrument sound output of the electronic keyboard musical instrument of the present invention.

3 is a block diagram of a second embodiment of an electronic keyboard musical instrument of the present invention.

4 is a block diagram of a third embodiment of an electronic keyboard musical instrument of the present invention.

* Explanation of symbols for main parts of the drawings

1: Keyboard part 2: Parallel label

2A: Serial Cable 2B: Keyboard Cable

3: parallel interface 3A: serial interface

3B: Keyboard Buffer 4: Keys Scan Code Input

5: data conversion processing section 6: sound source data code output section

7: sound module 8: speaker

The present invention relates to an electronic keyboard musical instrument and a method for controlling the musical sound output by connecting an electronic keyboard to a personal computer to generate and output musical notes by data conversion and signal processing in the computer. will be.

Conventional electronic keyboard musical instruments include a processor for controlling the keyboard and instrument sound output, a program and sound source data memory, a sound source IC, a digital / analog converter, a filter, an amplifier, a speaker, and a switch for function selection (rhythm, tone, auto accompaniment, etc.). Since it is composed of one independent product as a component, it is expensive for a general user to purchase, and there is a complicated circuit configuration.

On the other hand, there is also a product provided with a sound source generating device (e.g., ADLIB, SOUND BLASTER, jade sound, MIDI card) in the personal computer, and can be output to configure the instrument sound with a personal computer, in this case, the user Since the keyboard should be used as a substitute for the keyboard and the musical instrument must be configured and outputted, it will inevitably lead to a decrease in the sense of performance due to the inability to play with the keyboard. Since the key must be pressed, the actual performance is difficult, and only a simple sheet music can be played. Therefore, there is a problem in that the use of a personal computer as an electronic keyboard musical instrument is extremely limited and only a limited playing effect can be obtained.

The present invention eliminates a separate processor, various memories, and digital signal processing circuits, and includes only an electronic keyboard for fingering the score, and connects the electronic keyboard to a personal computer using a parallel cable, a serial cable, or a keyboard cable. The personal computer generates means for reading the key code value of the key pressed by the electronic keyboard, a means for processing the key code value and converting the key code value into instrument sound data, and an instrument sound corresponding to the instrument sound data. It provides a low-cost electronic keyboard instrument device with a simple circuit configuration by providing a means for outputting, and can perform actual performance with a keyboard using an existing personal computer, and easily generate musical instrument sounds with a personal computer. The electronic keyboard musical instrument using a personal computer and the sound output control method thereof Turning to the construction and operational effects of the present invention with reference to the accompanying drawings and for the purpose that, following attachment device as follows.

First, referring to FIG. 1, the electronic keyboard musical instrument of the present invention is provided with a key corresponding to each pitch and scale, and is provided with a switch that is turned on / off as the key is pressed to output note information. The keyboard unit 1, a parallel cable 2 for supplying the knot information output from the keyboard unit 1 to the personal computer in parallel data format, and the knot information input through the parallel cable 2 A parallel interface 3 that accepts a can code value, a key scan code input unit 4 that supplies a key scan code value received by the parallel interface 3 to the data converting unit 5, and the input key scan A data conversion processing unit (5) which finds out the key pressed in correspondence with the code value, converts the key scan code into instrument sound data corresponding to the pressed key, and outputs the result; A sound source data code output unit 6 for outputting a sound source data code for generating a corresponding instrument sound in the sound source module 7, and a sound source for generating and outputting a sound of a tone and a pitch corresponding to the output sound source data code A module 7 and a speaker 8 for outputting the generated musical sound.

On the other hand, referring to Figure 2, the instrument sound output control method of the electronic keyboard musical instrument of the present invention, the first step of determining the presence or absence of the pressed key by scanning the keyboard unit 1, and the key pressed as a result of the first process determination A second process of decoding the key scan code value generated in the second process; a third process of converting the key scan code value decoded in the second process into musical instrument sound data corresponding thereto; and the instrument sound data obtained in the third process. The fourth step of generating a musical instrument sound of the pitch and tone corresponding to the output to the speaker.

The instrument sound output operation in the personal computer according to the present invention apparatus and method as described above is as follows.

Parallel interface (3) and parallel cable (2) in a control means comprising a key scan code input section (4), a data conversion processing section (5), and a sound source data code output section (6) as shown in FIGS. Key scans whether or not there is a key pressed in the keyboard (1).

If there is a key pressed as a result of the key scan, the note information corresponding to the key is input to the parallel interface 3 through the parallel cable 2 to supply the key scan code value to the key scan code input unit 4. The key scan code value inputted to the key scan code input unit 4 is supplied to the data conversion processing unit 5, and the data conversion processing unit 5 interprets the input key scan code value to determine the pressed key, and the pressed key. Convert the sound source data code (ROL, MIDI FORMAT) corresponding to the output.

The output sound source data is supplied to the sound source module 7 (ADLIB, SOUND BLASTER, Oksori, MIDI FORMAT) through the sound source data code output unit 6, and the sound source module 7 has a pitch corresponding to the input sound source data code. It generates the sound of the instrument and the tone and outputs it to the speaker (8).

3 shows the configuration of the second embodiment of the apparatus of the present invention, and the same parts as in the first embodiment will be denoted by the same reference numerals and redundant description thereof will be omitted.

However, in this embodiment, the serial cable 2A for supplying the knot information output from the keyboard unit 1 to the personal computer in serial data format, and the knot scan code for the knot information input through the serial cable 2A. It contains a serial interface 3A that accepts a value.

Therefore, in this embodiment, the knot information of the keyboard portion 1 is supplied to the serial interface 3A as serial data through the serial cable 2A, and the serial interface 3A transfers the input knot information to the key scan code of the corresponding keyboard. By supplying the value to the key scan code input unit 4, the instrument sound output signal processing corresponding to the keyboard operation is performed in the same manner as in the first embodiment.

4 shows the configuration of the third embodiment of the apparatus of the present invention, and the same parts as in the first embodiment will be denoted by the same reference numerals and redundant description thereof will be omitted.

In this embodiment, however, a keyboard cable 2B for supplying the note information output from the keyboard unit 1 to the personal computer side in a computer keyboard data format, and the note information input through the keyboard cable 2B. It includes a keyboard buffer (3B) that accepts as a key scan code value.

Thus, in this embodiment, the note information of the keyboard portion 1 is supplied to the keyboard buffer 3B in a data format from a general computer keyboard via the keyboard cable 2B, and supplied to the keyboard buffer 3B. The note information is read from the key scan code input section 4 as the key scan code value of the corresponding key and supplied to the data converting section 5 so that the instrument sound output signal corresponding to the keyboard operation is the same as in the first embodiment. The process is performed.

As described above, according to the present invention, since only the keyboard portion can be connected to a personal computer through a signal transmission line without a separate processor or digital signal processing circuit, the keyboard musical instrument performance can be performed. Since it is possible to use the sound source generator provided in the existing personal computer, it is possible to further simplify the instrument circuit configuration, and to improve the computer function and overcome the limitations of instrument operation using a computer.

Claims (4)

A keyboard corresponding to each pitch and scale is provided, and a switch for turning on / off as the key is pressed is provided to output note information, and is output from the keyboard 1. Parallel cable (2, 2A, 2B) that supplies the note information to the personal computer in parallel data format, and a parallel interface that receives the note information input through the parallel cable (2, 2A, 2B) as a key scan code value. (3,3A, 3B), a key scan code input unit 4 for supplying a key scan code value received by the parallel interface 3, 3A, 3B to the data conversion unit 5, and the key scan code input unit. A data conversion processing section (5) for finding out the key pressed in response to the key scan code value inputted in (4), converting the key scan code into musical instrument sound data corresponding to the pressed key, and outputting the result; Of the conversion processing section 5 A sound source data code output unit 6 for outputting the sound instrument sound data as a sound source data code for generating the corresponding instrument sound in the sound source module 7, and corresponding to the output sound source data codes of the sound source data code output unit 6 An electronic keyboard musical instrument apparatus using a personal computer comprising a sound source module (7) for generating and outputting a musical sound of a tone and a pitch, and a speaker (8) for outputting the musical sound generated in the sound source module (7). The cable connecting the keyboard unit 1 to the personal computer side supplies the note information output from the keyboard unit 1 to the personal computer in a parallel or serial data format. The electronic keyboard musical instrument using a personal computer, characterized in that the received parallel or serial note information is received as a key scan code value and input to the key scan code input unit (4). The cable connecting the keyboard unit 1 to the personal computer side supplies the note information output from the keyboard unit 1 to the personal computer side in a computer keyboard data format. An electronic keyboard musical instrument using a personal computer, characterized in that the note information of the input computer keyboard data format is received as a key scan code value and input to the key scan code input unit (4). A first step of determining whether or not a key is pressed by scanning the keyboard unit 1 connected through a cable on the personal computer side, and a second step of deciphering a key scan code value generated in a key pressed on the first step determination result. A second step of converting the key scan code value decoded in the second step into musical instrument sound data corresponding to the same using a sound source data processing unit provided in the personal computer; 4. A method for controlling the musical sound output of an electronic keyboard musical instrument using a personal computer, comprising a fourth step of generating musical sound of a pitch and a tone corresponding to data using a sound source module provided in the personal computer and outputting the same to a speaker.