JP3218655B2 - Audio equipment and its operation display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device capable of processing a video signal and a method of operating and displaying the same.

[0002]

2. Description of the Related Art For example, an audio signal reproduced from a VTR is supplied to audio equipment to improve reproduced sound. In this case, a video signal reproduced from a VTR is simultaneously supplied to the audio equipment, and the audio equipment supplies the video signal to a receiver or another VTR. In the case of supplying the video signal to another VTR for the purpose of dubbing or the like, processing such as amplification suitable for dubbing the video signal may be performed in the audio equipment.

On the other hand, the content of signal processing in audio equipment has recently become diversified. For this reason, for example, with a small-scale display provided on an operation panel of a device, it is becoming difficult to display processing contents as necessary and sufficiently. The present invention has been made in view of such a point.

[0004]

The problem to be solved is that, for example, it is becoming difficult to sufficiently display a display provided on an operation panel of the device.

[0005]

According to a first aspect of the present invention, there is provided an audio apparatus capable of processing an audio signal and having a capability of processing a video signal by connecting a receiver to an arbitrary input signal. Means for processing and outputting sound field characteristics (DSP unit 4), means for setting parameters for processing the sound field characteristics (microcomputer 12, key switch 13);
A means (GDC9) for forming a video signal for displaying the set contents is provided on the receiver, and when the parameters of the wall material of the sound field are set, an image indicating the shape of the sound field is displayed on the receiver. An audio device which is displayed and forms a changed video signal so that the color of a portion corresponding to a wall surface of the image is changed in accordance with a change in the parameter.

A second means according to the present invention forms an image for displaying an image showing a sound field, detects a setting state of a parameter of a wall material of the sound field, and responds to the change of the parameter by detecting a change in the parameter. This is an operation display method of an audio device in which the color of a portion corresponding to a wall surface of an image is changed.

[0007]

According to this, an image showing the sound field is displayed, and the color of a portion corresponding to the wall surface is changed according to the change of the parameter of the wall surface material, so that an extremely clear display can be performed. it can.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes an audio signal input switch. The input switch 1 has a tuner 2
And a CD player (not shown) connected to the input terminal 3 while receiving the AM / FM reception signal from the
Signal from a DAT player (not shown), for example, three systems of video equipment (VIDEO 1, 2, VIDEO 1, 2,.
3: sound signals reproduced from the audio signal are supplied in stereo. The signal from the input changeover switch 1 is supplied to the DSP unit 4 for characteristic processing, and the processed signal is taken out to the output terminal 6 through the muting switch 5.

Reference numeral 7 denotes a video signal input switch. Each of the input changeover switches 7 has an input terminal 8
For example, three systems of video equipment (VIDEO1,
2, 3: not shown) are supplied. The signal from the input changeover switch 7 is supplied to a graphic controller (GDC) 9 which forms a video signal of a display image described later. The signal formed by the GDC 9 and the original signal are selected by the switch 10 and taken out to the output terminal 11.

Reference numeral 12 denotes a microcomputer for controlling the system. The microcomputer 12 is provided with a processing CPU 21, a ROM 22, and a RAM 23, and controls according to a program written in the ROM 22. Then, for example, a signal from a key switch 13 constituting an operation panel is supplied to the microcomputer 12,
Control of the input changeover switches 1 and 7, the tuner unit 2, the DSP unit 4, the GDC 9, and the switches 5 and 10 is performed according to this signal. The status of this control is displayed on the display 14 and the LED 15 on the operation panel.

That is, the operation panel of this device is configured as shown in FIG. 2, for example. In the figure, the operation panel includes at least a power switch 51, an LED 52 indicating that display is to be performed on the receiver, and a display 1
4. A dial knob 53 for volume control and the like are provided. Further, the operation panel is provided with an operation unit corresponding to the key switch 31 for selecting the setting content of the processing of the sound field (surround) characteristics. This key switch 31
Are, for example, ten operation units 3 of 1 to 0.
1a to 32j.

An operation unit corresponding to the key switch 32 for controlling when the user arbitrarily changes the sound field is provided. The operation unit corresponding to the key switch 32 includes, for example, a start operation unit 32s and four operation units 32a for up, down, left, and right.
To 32d.

On the other hand, in the graphic controller (GDC) 9 of this apparatus, a video signal of a display image as shown in FIG. 3 is formed. That is, in FIG. 5A, the characteristics preset in the ROM 22 and the like are displayed on the left side of the image with the names of the basic sound fields. On the right side of the image, the sound field (surround) on / off, the equalizer on / off, and the dynamic range correction on / off are displayed. When a desired sound field name is selected with the above-mentioned key switches 31a to 32j, the display is surrounded by a frame, for example, as shown in the HALL1 portion. As a result, processing with ten basic sound field characteristics is performed.

In this state, the start operation section 32s is operated. As a result, a characteristic setting image as shown in FIG. 3B is displayed. Here, for example, when the operation units 32a to 32d are operated, various characteristics of the sound field (surround) are changed.

That is, the characteristics of the sound field (surround) include parameters such as the size of the room (shape of the sound field), the material of the wall surface, the position of the seat, the level of the surround effect, the length of reverberation, and the like. If any of these parameters are
The selection is made by operating the operation units 32a and 32b. And when the parameter of the material of the wall is selected in this state,
An image for setting the wall material as shown in FIG. 4 is displayed.

Further, in this state, the parameters of the wall material are changed by operating the operation units 32c and 32d, and the image is changed as shown in A or B in FIG. That is, these figures show the shape of the sound field, and the color of the portion corresponding to the wall surface is changed according to the operation of the operation units 32c and 32d. That is, the mixing ratio of the colors red (R), green (G), and blue (B) displayed in this portion is changed as shown in Table 1 below.

[0017]

[Table 1] According to Table 1, the color of the upper side (soft material) is displayed in a warm color, and the lower side (hard material) is displayed in a cool color.

The parameters of the wall material correspond to changes in the frequency characteristic (filter) with respect to the initial reflected sound and the reverberant sound as shown in FIG. 5A or 5B. However, it is difficult to understand the meaning of the expression as shown in FIG.
Therefore, by displaying the change in the color of the portion corresponding to the wall surface as described above, it is possible to easily grasp visually.

According to the above-described apparatus, an image indicating a sound field is displayed, and the color of a portion corresponding to the wall surface is changed in accordance with a change in the parameter of the wall surface material, so that an extremely clear display is provided. Is what you can do.

FIG. 6 shows a flowchart of the key processing. That is, in the figure, when the key processing is started, it is determined in step [1] whether or not the key switch 32 has been operated, and when the result is NO, the processing proceeds to the next processing. If the answer is YES in step [1], the RAM 2
The filter coefficient data stored in 3 or the like is read and set in the DSP unit 4. In step [3], display processing on the display 14 is performed, and in step [4], the switch 10 is switched to the GDC 9 side.

In step [5], the display data of the shape of the sound field is supplied to the GDC 9, and in step [6], the color data (RGB) of the wall material of the sound field set to fill in the portion corresponding to the wall surface. ) Is supplied. In step [7], numerical display data is supplied, and the process proceeds to the next process. Thus, the above-described display can be performed.

When setting the above-mentioned parameters of the seat position, the positions of the arrows shown in FIG. 4 are moved forward, backward, left and right in accordance with the setting. When setting the parameters of the level of the surround effect, an image of the original sound, initial reflection and reverberation as shown in FIG. 7A is displayed, and the height of the graph showing the initial reflection and reverberation is changed. You. Further, when setting the parameter of the reverberation length, an image of the original sound, the initial reflection and the reverberation as shown in FIG. 7B is displayed, and the length of the graph showing the reverberation is changed. Thus, these displays can be clearly performed.

FIG. 8 is a display image when the sound level is set. In this figure, A indicates the surround level, and B indicates the center level, each of which is indicated by the number of thick lines. This makes it possible to clearly display the level.

[0024]

According to the present invention, an image showing the sound field is displayed, and the color of the portion corresponding to the wall surface is changed according to the change of the parameter of the wall material, so that a very clear display is provided. Now you can do it.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an example of an audio device according to the present invention.

FIG. 2 is a configuration diagram of the operation panel.

FIG. 3 is a diagram illustrating an example of an operation display method.

FIG. 4 is a diagram illustrating an example of an operation display method.

FIG. 5 is a diagram for explaining parameters of wall surface material.

FIG. 6 is a flowchart for the explanation.

FIG. 7 is a diagram for explaining another example of the operation display method.

FIG. 8 is a diagram for explaining another example of the operation display method.

[Explanation of symbols]

Reference Signs List 1 input switch for audio signal 2 tuner section 3 input terminal 4 DSP section for sound field processing 5 switch for muting 6 output terminal 7 input switch for video signal 8 input terminal 9 graphic controller for forming video signal of display image DESCRIPTION OF SYMBOLS 10 Switch 11 Output terminal 12 Microcomputer for system control 13 Key switch which comprises operation panel 14 Built-in display 15 LED

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10K 15/00 G09G 5/00 H04N 5/44

Claims (2)

(57) [Claims] 1. An audio device which is capable of processing an audio signal and having a capability of processing a video signal by being connected to a receiver, for processing an input signal into an arbitrary sound field characteristic and outputting the signal.
Means for setting the parameters of the processing of the sound field characteristics, and means for forming a video signal for displaying the set contents on the receiver; and An audio device that displays an image showing the shape of a sound field on the machine and forms a video signal that is changed so that the color of a portion corresponding to the wall surface of the image is changed in accordance with the change of the parameter. . 2. An image for displaying an image showing a sound field is formed, a setting state of a parameter of a wall material of the sound field is detected, and a portion corresponding to a wall surface of the image is changed according to the change of the parameter. The operation display method of the audio equipment in which the color of the sound is changed.