JPS62155879A - Personal computer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

TECHNICAL FIELD The present invention relates to a personal computer configured to move and display a predetermined character on a display monitor.

(Prior Art) In recent years, various personal computers have been proposed and implemented that move and display predetermined characters on a display monitor, such as in so-called video games. This type of personal computer is equipped with a sound means that outputs a predetermined sound as a character displayed on a display monitor moves.

However, since the sound means provided in conventional personal computers had a monaural configuration, there was a problem in that they lacked sound effects when a character moves on the screen of a display monitor.

(Object of the Invention) The present invention has been made in view of the above circumstances, and provides a personal computer that produces a sound effect to create a sense of realism when a character moves on the screen of a display monitor. is intended to provide.

(Structure of the Invention) In order to achieve the above object, the present invention has the following structure.

That is, the personal computer according to the present invention includes at least two left and right channels of sound means whose sound output can be varied by program control, and which outputs the sound of the two left and right channels in response to a change in the position of the character on the display monitor. It is characterized by comprising a control means for individually programmatically controlling the output.

The effects of this configuration are as follows.

For example, when a character moves from left to right on the display monitor screen, the control means gradually reduces the volume of the left channel sound means and gradually decreases the volume of the right channel sound means as the character moves. Enlarge. When the sound means is controlled in this way, the acoustic effect of the character moving from left to right on the screen is increased, and the sense of realism can be improved.

(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

FIG. 1 is a block diagram showing the configuration of a personal convenience store according to an embodiment of the present invention.

In the figure, l indicates a CPU (central processing unit). The CPUI controls the entire system, such as transmitting image data to the display control circuit 5 and controlling the audio output of the audio device 8.9, which will be described later. In connection with this CPU, there are provided a program ROM 2 in which the operating program is written in advance, a work RAM 3 necessary for the program operation of the CPU, and a character generator 4 that generates characters to be displayed on the display monitor 7.

The display control circuit (CRTC) 5 operates the data in the display RAM 6 based on the data given from the CPtJ 1. The display RAM 6 includes a storage area corresponding to the display screen of the display monitor 7.

The audio device L8 and the audio device R9 are capable of changing the volume, tone, interval, rhythm, tempo, etc. of the output audio based on data from the CPUI, and are, for example, a programmable sound device configured as a one-chip IC.・There are products such as Generenita. The audio signal output from the audio device L8 is provided to the left channel speaker 10, and the audio signal output from the audio device R9 is provided to the right channel speaker 11.

Next, the operation of the above-described embodiment will be explained.

FIG. 2 shows an example of a screen displayed on the display monitor 7. As shown in FIG.

As shown in FIG. 1 (al), for example, suppose that an airplane character that was at point A on the screen of the display monitor 7 moves to point B after a certain period of time.

Characters have their own addresses at their display positions. Here, the horizontal component XA of the address
Consider only DR. When the character moves from point A to point B, the XADR is x, x+1, X+2, etc. ...,
It changes as X+n. At this time, in response to the change in XADR, the volumes of the left and right two channel speakers 10 and 11 are changed.
Change the volume as shown in the volume change graph in the same figure (bl).If you change the volume to a sound that corresponds to the character, such as the jet sound of an airplane, the display position of the airplane on the display screen will change from point A to B. As the character moves to a point, the jet sound gradually changes from the left speaker 10 to the right speaker 11. As a result, an effect is produced as if the character had passed right in front of the operator.

Next, the operation of the embodiment shown in FIGS. 1 and 2 will be explained according to the flowchart shown in FIG.

When this system starts, in step a,
The start address, ie, the current horizontal address X of the character, is set in the address storage area XADR of the work RAM 3, and the process moves to step b.

In step b, the volume initial setting value (for example, 16) of the sound device L (PSGL) 8 is set in the volume control register AMPL of the acoustic bag WL8, and the process moves to step C.

In step C, the audio initial setting value (for example, 0) of the audio device R' (PSGR) 9 is placed in the volume control register AMPR of the audio device R9, and the process moves to step d.

In step d, the change ic of the character in the X direction is added to XADH, and the process moves to step e.

In step e, register A for volume control
Only the amount of change d in the volume corresponding to the change ic of the character in the X direction is subtracted from MPL to reduce the volume from the left channel speaker 10, and the process moves to step f.

In step f, register A for volume control
The volume change amount d is added to MPR to increase the volume from the right channel speaker 11, and step g
to move to.

In step g, the horizontal address of the character
It is determined whether the ADR value has reached x+n, and if they match, the process ends. On the other hand, if they do not match, the process moves to step d, and steps d to step g are repeated until XADR matches X+n.

By performing the arithmetic processing in this way, the volume of the speakers 10 and 11 changes as shown in FIG. 2 fbl as the character moves, and a stereo effect is obtained.

Note that in the above-described embodiment, the volume of the speaker was changed in accordance with the horizontal movement of the character on the screen, but the present invention is not limited to this. For example, if the pitch, tone, rhythm, tempo, etc. other than the volume are changed independently on the left and right sides in response to changes in the character's horizontal address XADR, the stereo effect can be further enhanced.

(Effects of the Invention) The personal computer according to the present invention individually controls the audio output of at least two left and right channels of audio means whose audio outputs can be varied by program control in response to changes in the position of the character on the display monitor. Therefore, the position of the sound image, etc. can be changed as the character moves. Therefore, according to the present invention, the expressive power of video and audio of a personal computer can be increased, and the sense of realism can be significantly improved.

In particular, when the present invention is applied to video games played on personal computers, the effects are remarkable.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is an explanatory diagram of the operation of the embodiment, and FIG. 3 is a flowchart showing the processing procedure of the embodiment shown in FIG. 1...CPU, 2...Program ROM, 3...
Work RAM, 4...Character generator, 5.
... Display control circuit, 6... Display RAM, 7... Display monitor, 8.9... Audio device, 10.11.
...Speaker.

Claims (1)

[Claims] (1) A personal computer configured to move and display a predetermined character on a display monitor, including at least two left and right channels of audio means that can vary the audio output under program control, and that corresponds to changes in the position of the character on the display monitor. Then, the left and right 2
1. A personal computer comprising: control means for individually programmatically controlling the audio output of the audio means of the channels.