JPH08182099A - Sound system - Google Patents

Abstract

PURPOSE: To provide a sound system in which a direction to obtain a correct sound image is easily selected without changing the direction of the sound system. CONSTITUTION: A signal reproduction section gives sound signals SL, SR, SLS, SRS to a signal changeover processing section 16. A position changeover switch 20b of a remote controller 21 provides a transmission signal in response to the operation of a switch section 22 to allow receiving sections 9a-9f to receive the signal. Reception signals Qa-Qf are fed to a microcomputer 17b to discriminate which switch in the switch section 22 is operated. Depending on the operated switch, the microcomputer 17 gives a sound switching signal SC to a signal changeover processing section 16 to select a sound signal fed to speakers 1a-1f. Furthermore, a position display signal SL representing a direction of a correct sound image based on the reproduction sound outputted from the speakers 1a-1f is fed to a display drive section 19, in which a display element in the direction is lighted. A direction in which a correct sound image is obtained is easily switched by operating the switch section 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device which outputs audio signals of a plurality of channels as sounds from a plurality of speakers.

[0002]

2. Description of the Related Art Conventionally, audio signals of a plurality of channels, for example, audio signals of left and right channels and audio signals of left and right channels for surround are respectively supplied to predetermined speakers, and a stereophonic sound field effect is produced by reproduced sounds output from the speakers. Acoustic devices that can be obtained are known.

[0003]

By the way, in such an audio device, since the audio signals of a plurality of channels are converted into reproduced sounds by respective predetermined speakers and outputted,
The listener is at a position corresponding to the playback sound output from the speaker,
That is, the listener cannot obtain a sufficient three-dimensional sound field effect unless the listener is in a position where the reproduced sound of the left channel is output from the left direction and the reproduced sound of the right channel is output from the right direction and the sound image is correct.

For this reason, a sufficient stereoscopic sound field effect cannot be obtained on the side surface or the rear surface of, for example, a CD radio cassette recorder (hereinafter referred to as "CD boombox"), so that the direction of the CD boombox is changed in each direction toward the listener. It was necessary to adjust to the above and the operation was troublesome.

Therefore, the present invention provides an audio device capable of easily switching the direction in which a correct sound image is obtained without changing the direction of the audio device.

[0006]

According to another aspect of the present invention, there is provided an audio apparatus which supplies audio signals of a plurality of channels to a plurality of speakers to obtain reproduced sounds, and switches audio signals supplied to the speakers. The signal switching means includes a signal switching means, a control means for controlling the switching operation of the signal switching means, and a position switching means for supplying a position switching signal to the control means, and the signal switching means is controlled by the control means based on the position switching signal from the position switching means. Is controlled to switch the position where the sound image based on the reproduced sound output from the speaker is correctly obtained.

According to a second aspect of the present invention, in the sound apparatus according to the first aspect, the position change means has a plurality of position change switches, and a direction in which a sound image is correctly obtained corresponding to the switch operation of the position change switches. Is switched.

According to a third aspect of the present invention, in the first aspect of the present invention, the position switching means has a cyclic switch, and the direction in which a sound image is correctly obtained is sequentially obtained each time the cyclic switch is operated. It is to switch.

An audio device according to a fourth aspect of the present invention is the audio device according to any one of the first to third aspects of the present invention, further comprising display means for indicating a direction in which a correct sound image is obtained based on the reproduced sound output from the speaker. It is a thing.

[0010]

According to the first aspect of the invention, the control means controls the switching operation of the signal switching means based on the position switching signal from the position switching means, and the sound image based on the reproduced sound output from the speaker is correctly obtained. Can be switched. Therefore, it is possible to reliably switch the direction in which the sound image based on the reproduced sound output from the speaker is correct without changing the direction of the audio device.

According to the second aspect of the present invention, the position changing means is composed of a plurality of position changing switches, and the direction in which the sound image is correctly obtained is changed corresponding to the switch operation of the position changing switch. Therefore, it is possible to reliably switch the direction in which the sound image is correct with one switch operation.

According to the third aspect of the present invention, the position switching means is composed of a cyclic switch, and each time the cyclic switch is operated, the direction in which the sound image is correctly obtained is sequentially and repeatedly switched. Therefore, it is easy to simply repeatedly operate the cyclic switch, and it is possible to reliably switch the direction in which the sound image based on the reproduced sound output from the speaker is correct in a small switch space.

According to the present invention, the direction in which the correct sound image is obtained based on the reproduced sound output from the speaker is displayed by the display means. Therefore, by referring to the display of the display means, it is possible to easily confirm whether the correct direction of the sound image is set correctly.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an audio device according to the present invention will be described below with reference to the drawings. FIG. 1 is an external view when the audio device is, for example, a CD radio cassette player.

In FIG. 1, reference numeral 1 is a speaker portion, and FIG. 2 is a schematic sectional view of the speaker portion 1 taken along the line II '. As shown in FIG. 2, the speaker unit 1 is radially arranged so that, for example, six speakers 1a to 1f face the openings 2a to 2f of the cabinet 2 at an angle of 60 °. Audio signals of a plurality of channels are supplied to the speakers 1a to 1f from a signal switching processing unit described later.
Further, punching metals 5a to 5f are arranged outside the openings 2a to 2f of the cabinet 2, respectively.

As shown in FIG. 1, a mounting portion 6 for mounting a cassette tape and a compact disc and an operating portion 7 for switching the operation of the CD radio cassette player are arranged on the upper surface of the speaker portion 1. When the operation unit 7 is operated or a remote control device described later is operated, the reproducing operation of the cassette tape or the compact disc mounted in the mounting unit 6 is performed.

Further, remote control light receiving parts 8a to 8f and remote control light receiving parts 9a to 9f are disposed above the cabinet 2 located between the punching metals 5a to 5f. Here, the remote control light receiving unit 8a is provided II
A schematic cross-sectional view taken along the line -II 'is shown in FIG.

The remote control light receiving portion 8a is mounted on the mounting portion 3a of the cabinet 2 in which the substantially conical hood portion 4a is formed. At this time, the remote control light receiving portion 8a is assumed to be located at the center of the substantially conical hood portion 4a. Although not shown, the remote control light receiving parts 8b to 8f and 9a to 9f are also mounted on the cabinet 2 in the same manner. This remote control receiver 8
Display elements 10a to 10f each including, for example, a light emitting diode or a lamp are attached to a lower portion of the cabinet 2 in which a to 8f and 9a to 9f are attached.

Next, the configuration of the first embodiment will be described with reference to FIG. In the signal reproducing section 15, the mounting section 6 shown in FIG.
The reproducing operation of the cassette tape or the compact disc mounted on the disk is performed. The left channel audio signal SL, the right channel audio signal SR, the left channel surround audio signal SLS, and the right channel surround audio signal SRS obtained by reproducing the cassette tape or the compact disc are supplied to the signal switching processing unit 16.

In the signal switching processing section 16, the left channel audio signal SL, the right channel audio signal SR, the left channel surround audio signal SLS, the right channel surround audio signal are generated based on the audio switching signal SC supplied from the microcomputer 17 described later. One of the SRS audio signals is selected and supplied to the speaker 1a. Similarly, the left channel audio signal SL and the right channel audio signal S are also applied to the speakers 1b to 1f.
One of R, the left channel surround audio signal SLS, and the right channel surround audio signal SRS is selected and supplied. The audio signals supplied to the speakers 1a to 1f are amplified based on the volume setting signal VC from the operation unit 7 and then supplied to the speakers 1a to 1f.

A transmission signal from the remote control device 20 for switching the operation of the CD radio-cassette is transmitted from the remote control light receiving portion 8a.
In the case of being received by, the reception signal Pa having a signal level corresponding to the signal level of the transmission signal received by the remote control light receiving unit 8a is supplied to the microcomputer 17. Similarly, when the remote control light receiving parts 8b to 8f receive the transmission signal, the reception signals Pb to Pc having the signal levels corresponding to the signal levels of the received transmission signals are supplied to the microcomputer 17.

When the remote control light receiving parts 9a to 9f receive the transmission signals, the reception signals Qa to Qf are supplied to the reception signal processing part 18. In the reception signal processing unit 18, one of the reception signals Qa to Qf supplied from the remote control light receiving units 9a to 9f is the remote control signal R.
It is supplied to the microcomputer 17 as C. For example, when the transmission signal from the remote control device 20 is received by the remote control light receiver 9a, the reception signal Qa is supplied to the microcomputer 17 as the remote control signal RC.

FIG. 5 shows the configuration of the remote controller 20. In FIG. 5, reference numeral 20a is an operation switch unit for switching the operation of the CD boombox. When the operation switch unit 20a is operated, a transmission signal which is an operation switching signal coded according to the operation is output from the remote control device 20. This transmission signal is an optical signal coded to control the lighting of an infrared light emitting diode (not shown) of remote control device 20. Also, 20b is a speaker 1a.
It is a position change switch for changing the audio signal supplied to 1f. When the position changeover switch 20b is operated, the infrared light emitting diode is turned on and a non-coded constant level position changeover signal is output as a transmission signal.

Further, as shown in FIG. 4, in the microcomputer 17, the position display signal SL indicating the direction in which the sound image of the reproduced sound output from the speakers 1a to 1f is correct in association with the audio switching signal SC output from the microcomputer 17. Is generated. The position display signal SL is supplied to the display drive unit 19. The display drive unit 19 generates drive signals DSa to DSf for performing lighting drive of the display elements 10a to 10f based on the position display signal SL. This drive signal DSa-D
Sf is supplied to the display elements 10a to 10f, and the lighting of the display elements is controlled.

Next, the operation will be described. When the position changeover switch 20b of the remote control device 20 shown in FIG. 5 is operated and the transmission signal is supplied to the CD radio-cassette from the direction A shown in FIG. 1, for example, the transmission signal is received by the remote control light receiving portion 8a and received. The received signal Pa having a signal level corresponding to the signal level of the transmitted signal is supplied to the microcomputer 17.

At this time, since a substantially conical hood portion is formed in the mounting portion of the cabinet 2 to which the remote control light receiving portions 8a to 8f are mounted as shown in FIG. 3, the opening of the substantially conical hood portion is formed. The transmission signal supplied from a direction other than the direction is limited by the hood section and then supplied to the remote control light receiving section. Therefore, the signal level of the transmission signal received by the remote control light receiving units 8b and 8f is lower than the signal level of the transmission signal received by the remote control light receiving unit 8a.
A received signal Pb having a signal level lower than that of the received signal Pa,
Pf is supplied to the microcomputer 17. Further, since the remote control light receiving parts 8c to 8e do not receive the transmission signal, the reception signals Pc to Pe are not supplied to the microcomputer 17.

The microcomputer 17 has an A / D converter, and after the supplied received signal is A / D converted, the signal levels are compared and the received signal with the highest signal level is detected. . Here, when it is detected that the reception signal having the highest signal level is the reception signal Pa supplied from the remote control light receiving unit 8a, the sound supplied from the microcomputer 17 to the signal switching processing unit 16 as shown in FIG. The left channel audio signal SL is supplied to the speaker 1a based on the switching signal SC. Further, the speaker 1b has a left channel surround sound signal SLS, the speaker 1c has a left channel sound signal SL, the speaker 1d has a right channel sound signal SR, the speaker 1e has a right channel surround sound signal SRS, and the speaker 1f has a right channel sound signal. The signals SR are respectively supplied. In addition, from the microcomputer 17 to the display drive unit 1
Drive signal D based on the position display signal SL supplied to
Sa is generated, and only the display element 10a is turned on by this drive signal DSa.

Similarly, when the transmission signal is supplied from the direction B shown in FIG. 1, the microcomputer 17 detects that the reception signal having the highest signal level is the reception signal Pb from the remote control light receiving unit 8b. At this time, the speaker 1a has a right channel audio signal SR, the speaker 1b has a left channel audio signal SL, the speaker 1c has a left channel surround audio signal SLS, and the speaker 1d has a left channel audio signal SL.
The right channel audio signal SR and the speaker 1 are supplied to the speaker 1e.
The right channel surround audio signal SRS is supplied to each of f. Further, only the display element 10b is turned on based on the position display signal SL supplied from the microcomputer 17 to the display drive section 19.

Further, when the transmission signal from the remote control device 20 is supplied from the C direction, D direction, E direction, and F direction, the same processing is performed, and the audio signals supplied to the speakers 1a to 1f are switched. Switching of the display element that is turned on is also performed.

The transmission signal from the remote control device 20 is also received by the remote control light receiving parts 9a to 9f, but since the transmission signal is not a coded transmission signal, even if the remote control signal RC is supplied to the microcomputer 17, it operates. Is never switched. When the operation switch section 20a of the remote control device 20 is operated and the coded reception signal RC is supplied to the microcomputer 17 to switch the operation, the signals are supplied to the speakers 1a to 1f. Switching of the audio signal to be performed is prohibited.

As described above, even if the user is not at the front of the CD radio-cassette, simply by operating the position changeover switch 20b of the remote controller 20, the speakers 1a ...
Since the audio signal supplied to 1f can be switched, CD
A correct sound image can be easily obtained from a distant position without changing the direction of the boombox. In addition, the speaker 1a ~
Since the direction in which the sound image based on the reproduced sound output from 1f is correct is revealed by the lighting of the display elements 10a to 10f, it is possible to easily confirm whether or not the audio signal is set correctly.

Further, since the remote control device 20 is provided with the operation switch section 20a and the position changeover switch 20b, the remote control device 20 can be easily operated by one remote control device without switching the operation of the audio device and changing the direction of the audio device. The correct sound image can be obtained. Further, since the transmission signal is generated by controlling the lighting of the infrared light emitting diode, the remote controller 20 can be configured without increasing the cost.

By the way, in the remote control device 20, when the position changeover switch 20b is operated, the infrared light emitting diode outputs a non-coded constant level optical signal, but the signal is transmitted from the infrared light emitting diode. The output is not limited to the infrared light to be output. For example, if a laser diode is used and the signals of the laser light output from the laser diode are received by the remote control light receiving units 8a to 8f, the direction of the laser light is directed. Since the transmission signal is not received by the plurality of remote control light receiving units because of its high performance, it is not necessary to compare the signal levels of the reception signals Pa to Pf. Therefore, it is possible to easily and surely switch the audio signals supplied to the speakers 1a to 1f.

Next, the second embodiment will be described. Second
In this embodiment, the position changeover switch 20 of the remote control device 20 is used.
When b is operated, a coded transmission signal corresponding to the operation of the position changeover switch 20b is output, and
This transmission signal is received by the remote control light receiving units 9a to 9f without using the remote control light receiving units 8a to 8f.

FIG. 7 shows the configuration of the second embodiment,
Portions corresponding to those in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted. In FIG. 7, the reception signals Qa to Qf output from the remote control light receiving units 9a to 9f are the first signals.
It is supplied to the microcomputer 17a corresponding to the microcomputer 17 of the embodiment.

Here, when the position changeover switch 20b of the remote control device 20 is operated and a transmission signal is supplied to the CD radio-cassette from the direction A shown in FIG. 1, for example, based on the transmission signal received by the remote control light receiving section 9a. And the reception signal Qa is supplied to the microcomputer 17a. At this time, a substantially conical hood portion is formed in the mounting portion of the cabinet 2 in which the remote control light receiving portions 9a to 9f are mounted, similarly to the mounting portion of the cabinet 2 in which the remote control light receiving portions 8a to 8f are mounted. Therefore, the signal levels of the transmission signals received by the remote control light receiving units 9b and 9f are low. For this reason, the remote control light receiving parts 9b and 9f do not form the coded reception signals Qb and Qf based on the received transmission signal.
Only a is supplied.

The microcomputer 17a determines that the transmission signal is supplied from the direction of the remote control light receiving portion 9a based on the reception signal Qa, and the speaker 1a is the same as in the first embodiment.
Is supplied with the left channel audio signal SL. Further, the speaker 1b has a left channel surround sound signal SLS, the speaker 1c has a left channel sound signal SL, the speaker 1d has a right channel sound signal SR, the speaker 1e has a right channel surround sound signal SRS, and the speaker 1f has a right channel sound signal. The signals SR are respectively supplied. Also, microcomputer 1
Position display signal SL supplied from 7a to the display drive unit 19
The drive signal DSa is generated based on the above, and only the display element 10a is turned on by this drive signal DSa.

The transmission signal from the remote control device 20 is received by the remote control light receiving parts 9b and 9f, and the reception signals Qb and Qf are received from the remote control light receiving parts 9b and 9f.
When it is supplied to the remote control light receiving unit 9a, it is determined that the transmission signal is supplied from the direction of the remote control light receiving unit 9a located in the center of the three remote control light receiving units 9a, 9b, 9f that supply the reception signals Qa, Qb, Qf. The audio signal is switched. Similarly, when a transmission signal is supplied from the direction B shown in FIG. 1, the microcomputer 17a receives the reception signal Q from the remote control light receiver 9b.
It is detected that b is supplied. At this time, the speaker 1a has a right channel audio signal SR, the speaker 1b has a left channel audio signal SL, the speaker 1c has a left channel surround audio signal SLS, the speaker 1d has a left channel audio signal SL, and the speaker 1e has a right channel. Audio signal SR,
The right channel surround sound signal SRS is supplied to the speaker 1f. Further, only the display element 10b is turned on based on the position display signal SL supplied from the microcomputer 17a to the display drive section 19.

Further, when the transmission signal from the remote control device 20 is supplied from the C direction, D direction, E direction, and F direction, the same processing is performed, and the audio signals supplied to the speakers 1a to 1f are switched. Switching of the display element that is turned on is also performed.

As described above, even if the player is not in front of the CD radio-cassette, simply by operating the position changeover switch 20b of the remote control device 20, the signals are supplied to the speakers 1a-1f according to the direction of the transmission signal as in the first embodiment. Since the audio signals to be reproduced are switched, a correct sound image can be easily obtained from a distant position without changing the direction of the CD radio-cassette.
Further, since the direction in which the sound image based on the reproduced sound output from the speakers 1a to 1f is correct is revealed by the lighting of the display elements 10a to 10f, it is easy to confirm whether or not the audio signal is set correctly. be able to. Further, since the remote control light receiving parts 8a to 8f of the first embodiment are not required, the cost can be reduced.

In the second embodiment as well, as in the first embodiment, the remote control device 20 uses a laser diode, and the laser light signal output from the laser diode is transmitted to the remote control light receiving parts 8a to 8f. If received, the audio signals supplied to the speakers 1a to 1f can be easily and reliably switched.

Next, a third embodiment will be described. Third
In the embodiment, as shown in FIG. 8, a plurality of position changeover switches (for example, six position changeover switches 2) are provided in the position changeover switch portion 22 of the remote control device 21 corresponding to the remote control device 20.
2a to 22f) are provided, different coded transmission signals are output according to the operation of these position changeover switches, and the voice output mode shown in FIG. 10 is selected according to the plurality of position changeover switches. .

FIG. 9 shows the configuration of the third embodiment.
Portions corresponding to those in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted. In FIG. 9, the microcomputer 17b
The operation unit 7a corresponds to the microcomputer 17 and the operation unit 7, and the position switching signal CS is supplied from the operation unit 7a to the microcomputer 17a.

Here, for example, when the position changeover switch 22a for selecting the position mode "A" (when listening to the reproduced sound from the direction A in FIG. 1) of the position changeover switch section 22 of the remote controller 21 is operated, this operation is performed. A corresponding coded transmission signal is output. This transmission signal is received by any of the remote control light receiving units 9a to 9f, and the reception signal is supplied to the reception signal processing unit 18. In the reception signal processing unit 18, one of the reception signals Qa to Qf from the remote control light receiving units 9a to 9f is selected and used as the remote control signal RC by the microcomputer 1.
7b. For example, when the transmission signal from the remote control device 21 is received by the remote control light receiver 9a, the reception signal Qa is supplied to the microcomputer 17b as the remote control signal RC.

The microcomputer 17b determines that the position changeover switch 22a for selecting the position mode "A" of the position changeover switch unit 22 of the remote control device 21 is operated based on the supplied remote control signal RC, and the microcomputer 17b is operated.
From the audio switching signal SC supplied from the signal switching processing unit 16 from
10, the left channel audio signal SL for the speaker 1a, the left channel surround audio signal SLS for the speaker 1b, and the left channel audio for the speaker 1c are shown in FIG. 10, which shows the relationship between the position mode and the audio signal supplied to the speaker. The signal SL, the right channel audio signal SR is supplied to the speaker 1d, the right channel surround audio signal SRS is supplied to the speaker 1e, and the right channel audio signal SR is supplied to the speaker 1f. Further, the drive signal DSa is generated based on the position display signal SL supplied from the microcomputer 17a to the display drive section 19, and only the display element 10a is turned on by the drive signal DSa.

Similarly, the position mode "B" to "F" of the position changeover switch section 22 of the remote control device 21 (B to F in FIG. 1).
When any of the position changeover switches 22b to 22f for selecting (when listening to the reproduced sound from the direction) is operated and a signal is transmitted, the signal is received by any of the remote control light receiving parts 9a to 9f and the remote controller is sent to the microcomputer 17b. The signal RC is supplied to determine which of the position changeover switches 22b to 22f of the position changeover switch unit 22 is operated, and the operated position changeover switch 22b.
The audio output mode is selected in accordance with ~ 22f. The voice switching signal SC is supplied from the microcomputer 17b to the signal switching processing unit 16 according to the selected position mode, so that the speakers 1a to 1f according to the selected position mode.
The audio signal supplied to the display element is switched and the display element that is turned on is switched.

Further, the position changeover switches 22a to 22f of the position changeover switch section 22 of the remote control device 21 are replaced by 1
Assuming that one cyclic switch is provided, a coded transmission signal corresponding to the operation of the cyclic switch is output, and the transmission signal is received by any of the remote control light receiving units 9a to 9f, and the microcomputer 17b is received.
If it is determined that the cyclic switch has been operated, the position mode is repeatedly switched from position mode “A” to position mode “F”.
Position changeover switch 22b of the position changeover switch section 22 of
By repeatedly operating the cyclic switch without selecting and operating any of 22f, it is possible to easily obtain the correct sound image without changing the direction of the CD radio-cassette.

A cyclic switch is provided in the operation unit 7, and an operation signal CS is supplied to the microcomputer 17b every time the cyclic switch is operated, and the position mode is set each time the operation signal CS is supplied. If switched, it is possible to switch the audio signals supplied to the speakers 1a to 1f without using the remote control device 21.

As described above, since the position mode can be arbitrarily set only by operating the position changeover switches 22a to 22f of the remote control device 21, the reproduced sound output from the speakers 1a to 1f without changing the direction of the CD radio cassette player. The direction in which the sound image based on is correct can be reliably switched. In addition, the directions in which the sound image based on the reproduced sound output from the speakers 1a to 1f becomes correct are the display elements 10a to 10f.
Since it is revealed by the lighting of f, it is possible to easily confirm whether or not the audio signal is set correctly. Further, if the position changeover switches 22a to 22f are one cyclic switch, it is easy to operate the same switch repeatedly, and the position mode can be surely changed over with a small switch space. Of course, the position mode is not limited to the six modes "A" to "F".

As described above, according to the first to third embodiments,
As shown in FIG. 11, even when the user sits at any position around the audio device 25 (CD radio cassette player), the position changeover switch is operated on the remote control device or the operation unit 7 to supply the sound to the speakers 1a to 1f. Since the audio signal can be switched, a correct sound image can be easily obtained without changing the direction of the acoustic device 25. Also, the speaker 1
Since the direction in which the sound image based on the reproduced sound output from a to 1f is correct is revealed by the lighting of the display elements 10a to 10f, it is possible to easily confirm whether or not the audio signal is set correctly. .

In the first to third embodiments, the description has been made by using the CD radio cassette as the audio device, but the audio device is the CD.
Of course, it is not limited to the boombox. Further, the speaker of the audio device is not limited to the one in which a plurality of speakers are radially arranged like the above-mentioned CD radio cassette player, and for example, four speakers are arranged at four corners of a room and supplied to this speaker. The listener may obtain the correct sound image by switching the audio signal.

[0052]

According to the invention of claim 1, the control means controls the switching operation of the signal switching means based on the position switching signal from the position switching means so that the sound image based on the reproduced sound output from the speaker is correctly generated. The resulting position is switched.
Therefore, it is possible to reliably switch the direction in which the sound image based on the reproduced sound output from the speaker is correct without changing the direction of the audio device.

According to the second aspect of the present invention, the position changing means is composed of a plurality of position changing switches, and the direction in which the sound image is correctly obtained is changed according to the switch operation of the position changing switch. Therefore, it is possible to reliably switch the direction in which the sound image is correct by one switch operation.

According to the third aspect of the present invention, the position switching means is composed of a cyclic switch, and each time the cyclic switch is operated, the direction in which the sound image is correctly obtained is sequentially and repeatedly switched. Therefore, it is easy to simply operate the cyclic switch repeatedly, and the direction in which the sound image based on the reproduced sound output from the speaker is correct can be reliably switched with a small switch space.

According to the invention of claim 4, the direction in which the correct sound image is obtained based on the reproduced sound output from the speaker is displayed by the display means. Therefore, by referring to the display of the display means, it is possible to easily confirm whether the correct direction of the sound image is set correctly.

[Brief description of drawings]

FIG. 1 is a diagram showing an appearance of a first embodiment of an audio device according to the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line I-I ′.

FIG. 3 is a schematic cross-sectional view taken along line II-II ′.

FIG. 4 is a diagram showing a configuration of a first embodiment of an audio device according to the present invention.

5 is a diagram showing a configuration of a remote control device 20. FIG.

FIG. 6 is a diagram showing an operation of the first embodiment.

FIG. 7 is a diagram showing a configuration of a second embodiment of an audio device according to the present invention.

FIG. 8 is a diagram showing a configuration of a remote control device 21.

FIG. 9 is a diagram showing the configuration of a third embodiment of an audio device according to the present invention.

FIG. 10 is a diagram showing a relationship between a position mode and an audio signal supplied to a speaker.

FIG. 11 is a diagram showing an operation of the audio device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 speaker part 1a-1f speaker 2 cabinet 2a-2f opening part 3a mounting part 4a hood part 5a-5f punching metal 6 mounting part 7,7a operation part 8a-8f, 9a-9f remote control light receiving part 10a-10f display element 15 signal Playback unit 16 Signal switching processing unit 17, 17a, 17b Microcomputer (microcomputer) 18 Received signal processing unit 19 Display driving unit 20, 21 Remote control device 20a Operation switch unit 20b, 22a to 22f Position changeover switch 22 Position changeover switch unit 25 Acoustic apparatus

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location H04B 10/22 H04Q 9/00 301 B 371 B H04R 3/12 A H04S 3/00 Z

Claims (4)

[Claims] 1. An audio device for supplying reproduced sound by supplying audio signals of a plurality of channels to a plurality of speakers, comprising signal switching means for switching the audio signals supplied to the speakers, and switching operation of the signal switching means. It has a control means for controlling and a position switching means for supplying a position switching signal to the control means, and the control means controls the switching operation of the signal switching means on the basis of the position switching signal from the position switching means. An acoustic device characterized by switching a position at which a sound image based on a reproduced sound output from a speaker is correctly obtained. 2. The position changing means has a plurality of position changing switches, and changes the direction in which a sound image is correctly obtained in response to a switch operation of the position changing switch. Sound equipment. 3. The acoustic device according to claim 1, wherein the position switching means has a cyclic switch, and a direction in which a sound image is correctly obtained is sequentially switched each time the cyclic switch is operated. 4. The acoustic device according to claim 1, further comprising display means for indicating a direction in which a correct sound image is obtained based on a reproduced sound output from the speaker.