JPH0262200A - sound image control device - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sound image control device that enables continuous sound image movement to arbitrary two-dimensional or three-dimensional positions.

2. Description of the Related Art In recent years, the digitalization of both hardware and software, as seen in CDs, DATs, etc., has been remarkable, and the shift to Hi-Pi audio equipment is progressing. In addition, interest in not only equipment but also playback sound fields has increased, and there has been a desire to develop digital sound field control devices and sound image control devices that can freely control sound fields.

The configuration of a conventional sound image control device will be described below with reference to the drawings.

FIG. 6 shows the configuration of a conventional sound image control device. In FIG. 6, 13 is an input means for inputting an audio signal, 14 is a group of variable resistors that change the resistance value in a uniquely defined relationship, 15 is an amplifier, and 16 is a speaker.

The operation of the conventional sound image control device configured as described above will be explained below.

The audio signal input by the input means 13 is 4
The signal is input to a variable resistor group 4 having several resistors, and is attenuated according to the respective resistance values to obtain audio signals with different output levels. Each audio signal that has passed through the variable resistor is passed through an amplifier 15 to a speaker 16.
is output from. With such a configuration, it was possible to move the sound image.

Problems to be Solved by the Invention However, the configuration method described above has the problem that it is difficult to move the sound image accurately as intended by the listener (for example, when moving the sound image in a circular shape). had.

Also, when repeating the same sound image movement that was performed previously, etc.
It was impossible to reproduce exactly.

In view of the above-mentioned problems, the present invention provides a sound image control device that can accurately realize desired sound image movement and can accurately reproduce sound image movement that has already been performed.

Means for Solving the Problems In order to solve this object, the sound image control device of the present invention is configured as follows.

A first input means for inputting a plurality of sound image positions, a second input means for inputting a time for setting a sound image at a certain position, and a set of positions and times input by the first and second input means. A first storage means for storing data, a display means for displaying a sound image position, a time for setting the sound image, and a reduced form of the listening room, a second storage means for storing data for setting the sound image, and inputting an audio signal. a signal processing means for generating a signal that enables sound image movement through signal processing; and a signal processing means for inputting data stored in the second storage means according to the time stored in the first storage means. The signal processing apparatus is composed of a control means for setting the signal, and an output means for outputting the signal processing result.

A first input means for inputting a plurality of sound image positions, a second input means for inputting a time for setting the sound image at a certain position, and a second memory uniquely associated with the input sound image positions. By providing the means, it is possible to set an arbitrary sound image position, the setting time of the sound image can be set arbitrarily, and these times are controlled by the control means, so that precise and arbitrary sound image movement is possible. Become. Further, by providing the first storage means with a timer and automatically storing the sound image position and time, accurate reproduction of the sound image movement becomes possible.

Embodiment Hereinafter, a sound image control device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a sound image control device according to a first embodiment of the present invention.

In Fig. 1, 1 is a position input circuit for inputting the position of a sound image, 2 is a setting input circuit for inputting a time to set a sound image at a certain position, and 3 is a circuit for storing the input sound image position and setting time. 4 is a display circuit that displays the input sound image position and setting time; 5 is a data storage circuit that stores the input sound image position data and corresponding signal processing data; 6 is a display circuit that stores the input sound image position data and corresponding signal processing data; 7 is an input terminal for inputting an audio signal; 8 is a signal processing circuit that generates a signal for setting a sound image based on the input signal and the data stored in 5; 9 is an output terminal that outputs a signal to the outside.

The operation of the sound image control device configured as described above will be explained below.

In FIG. 1, first, the display circuit 4 is caused to display a reduced form of the listening room. In other words, the coordinate positional relationship between the listening room on the reduced drawing and the actual listening room corresponds to a pair. Then, the listener or the person performing the operation inputs a desired sound image position on the reduced version of the listening room displayed on the display circuit 4 using the position input circuit 1. At the same time, the time for setting the sound image at the sound image position is inputted by the set time input circuit 2. The storage circuit 3 stores these input data in sets in the order in which they were input. (If the display circuit 4 can no longer display the sound image position, you may delete what is being displayed.) When the input of the sound image position and set time is completed, the control circuit 6 stores the sound image position in the memory circuit 3. Reads the stored data in order, extracts sound image position data according to the set time, controls the data storage circuit 5, and sets data for signal processing corresponding to the data to the signal processing circuit 8 according to the sound image position data. let

The data storage circuit stores output level data when outputting a signal to the outside.

The signal input to the input terminal 7 is processed by the signal processing circuit 8 with the data of the set data storage circuit, and is output from the output terminal 9 to the outside.

FIG. 2 shows an example of the position of the sound image displayed by the display circuit 4 in the first embodiment, a reduced view of the listening room, and the time when the sound image is set at a certain position.

In this case, the reduced view of the listening room is shown in 1) as a plan view, 12 represents the position of the listener, and the position of the sound image is represented by a circle. Further, the setting time of the sound image is indicated by a numerical value above the circle indicating the position.

In the embodiment, the reduced view of the listening room displayed on the display circuit 4 is a plan view, but when sound image control is performed in three dimensions, a three-dimensional view is used.

FIG. 3 shows a flowchart of the operation in the first embodiment.

FIG. 4 shows a sound image control device according to a second embodiment of the present invention.

In FIG. 4, reference numeral 10 is an evening timer that sets in the memory circuit 3 the time when the position input circuit 1 inputs the position of the sound image. Hereinafter, components having the same functions as those in the first embodiment are indicated by the same numbers.

The operation will be explained below.

In FIG. 4, the listener or the operator inputs a desired sound image position using the position input circuit 1 on the reduced version of the listening room displayed on the display circuit 4. In FIG. At this time, the timer 10 simultaneously sets the time at which the input was made in the memory circuit 3. The memory circuit 3 stores the input data in the order in which they were input on the string. When the input of the sound image position is completed, the control circuit 6 sequentially reads out the data stored in the storage circuit 3, and thereafter performs the same operation as in the first embodiment. FIG. 5 shows a flowchart of the operation in the second embodiment.

Note that by changing the setting time read out by the control circuit 6 by a certain magnification, there is an effect that the sound image setting can be controlled at a speed slower or faster than the set time.

A first input means for inputting the position of the sound effect image of the invention, a second input means for inputting the time for setting the sound image, a first storage means for storing the input position and time, and a first input means for inputting the position of the sound image. By providing a second storage means that stores data corresponding to each other, precise and arbitrary movement of the sound image becomes possible. Furthermore, by having a timer, the time at which the sound image position is input by the first input means can be automatically set in the first storage means, making it possible to accurately reproduce the sound image settings made twice. .

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a sound image control device according to a first embodiment of the present invention, Fig. 2 is an explanatory diagram showing a display circuit in the first embodiment, and Fig. 3 shows the operation of the first embodiment. 4 is a block diagram of a sound image control device according to a second embodiment of the present invention, FIG. 5 is a flowchart showing the operation of the second embodiment, and FIG. 6 is a block diagram of a conventional sound image control device. It is a diagram. ]・・・Position input circuit, 2・Old・Setting time input circuit, 3・・・・Storage circuit, 4・・・Display circuit, 5・・・・Data storage Circuit, 6... Control circuit, 7... Input terminal, 8... Signal processing circuit, 9... Output terminal, 1o... Black timer.

Claims (2)

[Claims] (1) A first input means for inputting a plurality of sound image positions, a second input means for inputting a time for setting a sound image at a certain position, and the position and time input by the first and second input means. a display means for displaying a position input by the first input means, a time for setting the sound image input by the second input means, and a reduced form of the listening room; , a second storage means for storing sound image setting data uniquely associated with the sound image position input by the first input means; a fourth input means for inputting an audio signal; a signal processing means for generating a signal that enables sound image movement by signal processing the data stored in the second storage means and the audio signal input by the fourth input means;
control means for setting the data stored in the second storage means in the signal processing means according to the movement start time stored in the storage means; and outputting a signal processing result obtained by the signal processing means. A sound image control device comprising an output means. (2) The first storage means has a timer, and when position data is input from the first input means, the position data and the time at which the data was input are automatically stored as a pair. The sound image control device according to claim (1).