JP2000333300A - Virtual mobile sound source system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optionally control a position of a virtual sound source. SOLUTION: A plurality of variable resistors 2 interconnect left right channel inputs of left and right amplifiers 3 and loudspeakers 4 in a stereophonic acoustic device or the like, or a recording device and sliders of the variable resistors receive a signal from a plurality of microphones or pickups 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating a sound source in a virtual space.

[0002]

2. Description of the Related Art Conventionally, a mixing switcher generally operates a mixing volume each time, as seen in stereophonic recording, in a manner similar to the purpose of the present invention.

[0003]

For example, in the case of music performance by an orchestra, a musical instrument 1 is used in order to enhance the effect.
It is an object of the present invention to virtually move the position of a musical instrument from (sound source 1) to musical instrument n (sound source n) to a required virtual position individually or for a plurality of musical instruments freely.

[0004]

As in the case of a stereophonic device, two sets of left and right amplifiers (3) and speakers (4) or the input of a recording device are bridged to the left and right channels by a plurality of volumes (2). In advance, signals of a plurality of microphones or pickup general devices (1) arbitrarily arranged at the midpoint of the volume are injected.

FIG. 1 shows that a sound source can be reproduced at a position different from reality depending on the position of the midpoint of the volume. This example is an example in which a person reproduces a sound source at a virtual position by performing manual conversion.

Next, when it is desired to program a change in the position of the virtual sound source,

As shown in FIG. 2, the volume (2) is replaced by a resistance element that can be changed by an electric signal, for example, a Cds photocoupler (8), and the resistance ratio is changed in an analog manner. An analog inverter (7) is provided so that the change in the resistance values of the left and right photocouplers is reversed.

The controller (6) is a microcomputer or R
Using the OM or the like, the sound source is programmed to the contents to be virtually moved.

Embodiments of the present invention will be described below with reference to the drawings.

[0007] Of the two examples,

FIG. 1 shows a case in which the sound source 2 is an artificial operation. In the case of the sound source 2, if the position of the volume (VR2) is intermediate, the sound source exists in the middle of the left and right speakers (4), that is, in the center.
By the way, the sound source 1 seems to be present on the left because the resistance value of the volume (VR1) is low on the left and high on the right from the figure. Similarly, it goes without saying that the sound source n exists on the right side.

As described above, the position of the sound source can be freely and instantaneously moved by intentionally operating the positional relationship of the real sound source.

[0009]

In the example of FIG. 2, regarding the signal source 1, the resistance value of the left photocoupler 1 is reduced by increasing or decreasing the analog signal or the pulse book signal of the stored program. It moves from left to right.

Similarly, the movement of n sound sources occurs instantaneously by the program.

【The invention's effect】

As described above, in the case of music, the position of a heavy musical instrument moves instantaneously, and in the case of nature, the sound of animals, the sound of rivers, etc., can freely fly in space. It has the effect of creating a virtual sound space.

[Brief description of the drawings]

Fig. 1 Manually operated virtual sound source moving device

FIG. 2 Program control unit

[Explanation of symbols]

 Reference Signs List 1 sound source such as microphone 2 left and right control volume 3 amplifier 4 speaker 5 audience 6 manual controller 7 analog inverter 8 Cds photocoupler 9 control unit

Claims (2)

[Claims] A plurality of sound sources can be electrically moved left and right individually. 2. A plurality of sound sources can be automatically moved right and left by a program.