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JP2006033077

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2006033077
An object of the present invention is to provide a speaker device which can be easily rearranged
without requiring much time for arranging operation. SOLUTION: Sound signals of a plurality of
channels output from a sound source unit 21 are converted into radio signals and received from
the main unit 20 having a wireless communication unit 29 for transmitting to a speaker
corresponding to each channel The speaker device 1 includes a plurality of speakers 10A to 10E
that convert wireless signals into audio signals and outputs the main device 20, and the main
body unit 20 detects each of the speakers 10A to 10E detected based on the arrangement
position of the center speaker 10C. Speaker arrangement position determination unit 26 that
generates arrangement information indicating the arrangement position of the channel, and
channel setting unit that generates channel setting information to which channels of acoustic
information corresponding to the arrangement positions of the speakers 10A to 10E indicated in
the arrangement information are allocated 27 and the wireless communication unit 29 sends the
channel of the acoustic signal to each speaker based on the channel setting information. To.
[Selected figure] Figure 1
Speaker device
[0001]
The present invention relates to a speaker device that reproduces sound by a plurality of channel
systems.
[0002]
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1
In recent years, home-use AV (Audio Visual) equipment such as a DVD (Digital Versatile Disc or
Digital Video Disc) player such as a Dolby Digital (registered trademark) system or a DTS
(registered trademark) system for a display device such as a plasma display or liquid crystal
display It is possible to build a realistic sound field even at home by combining
For example, Dolby Digital (registered trademark) 5.1 channel (hereinafter simply referred to as
“ch”) is a digital application of Dolby surround system, and it has 1 channel center speaker at
the center of the front and 1 channel at the front left and right It has a configuration provided
with a stereo speaker, a stereo speaker for each of 1ch on the left and right of the rear, and a
speaker for 0.1ch for a subwoofer dedicated to low frequency components. Such 5.1ch speakers
are arranged, for example, with the side on which the display device is installed as the front of
the room. Each speaker is connected by wire from a home AV apparatus such as a DVD player via
an amplifier, and the 5.1 ch output from the DVD player is amplified by the amplifier and then
supplied to each speaker by wire. (See, for example, Patent Document 1).
[0003]
Japanese Patent Application Publication No. 2003-164000
[0004]
When such a speaker device is disposed in a room, in most cases, the entire room is used, and
therefore, the wiring for the speaker device is in a state of being distributed throughout the
room. .
In addition, wiring for such a speaker device is generally considered to be visually disturbing, and
is disposed at a corner or a wall of a room to prevent a person from stumbling due to the wiring. ,
Should be placed under the carpet etc to hide the wiring. Therefore, there is a problem that the
operation of arranging such a speaker device takes time and effort. In addition, even when it is
desired to change the arrangement of the display device by changing the room or the like, the
speaker device is arranged as described above, so there is a problem that the arrangement can
not be easily changed.
[0005]
Because of this, as a problem to be solved by the present invention, there is a problem that the
conventional speaker device takes time and effort for the arrangement operation and can not be
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2
easily rearranged.
[0006]
According to the first aspect of the present invention, a main unit having wireless communication
means for converting acoustic signals of a plurality of channels output from a sound source into
wireless signals and transmitting the signals to speakers corresponding to the respective
channels; And a plurality of speakers for converting the wireless signal into an audio signal and
outputting the audio signal, wherein one of the plurality of speakers is a reference speaker
serving as a reference of the arrangement position, and the main body is Arrangement
information creating means for detecting the arrangement position of each speaker based on the
arrangement position of the reference speaker and creating arrangement information indicating
the arrangement state of each speaker, and corresponding to the arrangement position of each
speaker indicated in the arrangement information And channel setting information creating
means for creating channel setting information to which a channel of the sound information is
assigned, wherein the wireless communication means includes the channel And transmits and
converts the radio signal to a corresponding speaker sound signal from the sound source based
on the fixed information.
[0007]
Hereinafter, preferred embodiments of a speaker apparatus according to the present invention
will be described in detail with reference to the attached drawings.
The present invention is not limited by the present embodiment.
[0008]
Embodiment The present invention can be applied to a speaker apparatus having a plurality of
speakers each outputting an audio signal consisting of a plurality of channels, but in the present
embodiment, a speaker of 5.1 ch The case of the apparatus will be described as an example.
In other words, a speaker device having a center speaker for one channel disposed at the front
center, a speaker for one channel for each of the front and rear, and a speaker for low frequency
components for 0.1 channel for low frequency components The case will be described as an
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3
example.
[0009]
FIG. 1 is a block diagram schematically showing a configuration of a speaker device according to
the present invention. The speaker device 1 includes five speakers 10A to 10F for five channels
including a center speaker disposed at the center of the front, and six speakers for one lowfrequency component speaker 10F for one channel 0.1. The six speakers 10A to 10F are
configured to be provided with a main unit 20 that supplies a wireless signal of a channel
corresponding to each arrangement, and the six speakers 10A to 10F are detachable from the
main unit 20, and the main unit It has a function of performing wireless communication with the
unit 20. The six speakers 10A to 10F have an identifier for identifying each of them. In the
present embodiment, as shown in FIG. 1, the speakers 10A to 10F are given identifiers A to F,
among which the speaker of the identifier C is the center speaker 10C and the speaker of the
identifier F Is the low frequency component speaker 10F. In the present specification, right and
left used in the arrangement of the speakers 10A to 10F mean right and left toward the front
side of the main body 20.
[0010]
The speakers 10A to 10F each include a wireless reception unit 11 that receives a wireless signal
transmitted wirelessly from the main unit 20, an audio output unit 12 that outputs a wireless
signal of a corresponding channel received from the main unit 20 as sound, When 10A to 10E
are attached to the main unit 20, the attachment confirmation unit 13 performs communication
for identifying the speaker with the main unit 20, and the control unit 14 that controls each
processing unit. , Comprising. The channel for the low frequency component of the radio signal is
only one channel, and the channel component supplied to the low frequency component speaker
10F does not change depending on the location where the low frequency component speaker
10F is disposed. The low-range component speaker 10F always receives only the low-range
channel and outputs an audio signal. Therefore, the speaker setting process of the present
invention described below is not applied to the low frequency component speaker 10F, and
hence the detailed description and illustration of the low frequency component speaker 10F will
be omitted below.
[0011]
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The wireless reception unit 11 has a function of receiving only the wireless signal of the channel
set to each of the speakers 10A to 10E. For example, FIG. 2 is a view showing an example of the
arrangement of speakers, but the speaker 10A is arranged on the front left side on which the
display device 110 of the room 100 is placed, and the speaker 10B is arranged on the right side
in front of the room 100. It is assumed that the center speaker 10C is disposed at the center of
the front of the room 100, the speaker 10D is disposed at the rear left of the room 100, and the
speaker 10E is disposed at the rear right of the room 100. In this case, the wireless reception
units 11 of the speakers 10A to 10E are set to receive only the front left, front right, center, rear
left, and rear right channel components of the radio signals transmitted from the main unit 20.
Ru. Thereby, audio signals corresponding to the arrangement positions of the speakers 10A to
10E are output from the respective speakers. Here, “frontward” refers to the direction in
which the display device 110 such as a television is disposed in the space where the speaker
device 1 such as the room 100 is disposed, and “rearward” is defined with respect to this
reference It shall be. Therefore, even in the same room 100, when the arrangement position of
the display device 110 is different, the front and the rear also point in different directions.
[0012]
The voice output unit 12 has a function of converting a radio signal received by the wireless
reception unit 11 into a voice signal by a demodulation circuit or the like and outputting the
voice signal as sound.
[0013]
The mounting confirmation unit 13 has a function of causing the main body unit 20 to recognize
identifiers of the speakers 10A to 10E mounted on the main body unit 20 and the mounting
positions when the speakers 10A to 10E are mounted on the main body unit 20.
That is, while the attachment confirmation unit 13 identifies the attachment of the speakers 10A
to 10E to the main body unit 20 by the main unit 20, the identifier information of the speakers
10A to 10E attached to the main unit 20 through the attachment confirmation unit 13 is Will be
sent. In the present embodiment, as described later, since it is determined whether the main unit
20 is arranged forward or backward based on the presence or absence of the center speaker 10C
attached to the main unit 20, the mounting confirmation unit 13 is essential to the center
speaker 10C. . Therefore, in the present embodiment, the center speaker 10C corresponds to the
reference speaker in the claims. Further, for the speakers 10A, 10B, 10D, 10E other than the
center speaker 10C, it is preferable to provide the mounting confirmation unit 13 in order to
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5
make the main body unit 20 recognize the mounting position. For example, a pin can be used as
such a mounting confirmation unit 13. When this pin is used, detection means capable of
detecting this pin may be provided on the main body 20 side.
[0014]
The main body unit 20 stores information related to settings of the speaker device 1 and an
input unit 22 serving as an interface between a sound source unit 21 to which sound signals of a
plurality of channels are output and a user of the speaker device 1 (hereinafter referred to as a
user). Setting information storage unit 23, the number-of-speakers detection unit 24 for
detecting the number of speakers mounted on the main unit 20, and the speaker direction
detection unit 25 for detecting the arrangement direction of speakers not mounted on the main
unit 20; Speaker arrangement position determination unit 26 for determining the arrangement
positions of the respective speakers 10A to 10E, a channel setting unit 27 for setting a channel
based on the determined arrangement positions of the speakers 10A to 10E, and a result of the
set channels A channel setting adjustment unit 28 for performing adjustment based on an input
by the user, speakers 10A to 10E, and A wireless communication unit 29 that performs radio
communication with, and a controller 30 that controls these processing units. In the present
embodiment, the number-of-speakers detection unit 24, the speaker direction detection unit 25,
and the speaker arrangement position determination unit 26 correspond to arrangement
information generating means in the claims, and the channel setting unit 27 and the channel
setting adjustment unit 28. Corresponds to the channel setting information generating means in
the claims.
[0015]
The sound source unit 21 is a source for outputting audio signals of a plurality of channels
obtained by reproduction of AV information recorded in a recording medium or AV information
received by broadcasting or communication, and is, for example, a DVD player or an MD (Mini
Disc) player. , AV (Compact Disc) players, tuners, and other AV devices. The sound source unit 21
corresponds to the sound source in the claims.
[0016]
The input unit 22 is an input device such as a button or a cursor attached to the main body unit
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20. In the present embodiment, when the user arranges the speakers 10A to 10E, adjustment for
causing the speaker device 1 to recognize the state The configuration includes a button 221, a
determination button 222 for starting determination of whether or not the speaker arrangement
is appropriate after the user's arrangement of the speakers is completed, and a response button
223 for responding to the result of the determination. ing. The adjustment button 221 is pressed
when the user starts arranging the speakers 10A to 10E, and is a button serving as a trigger for
the speaker device 1 to enter a state in which the speakers 10A to 10E are arranged. That is,
when the adjustment button 221 is pressed, the control unit 30 recognizes that the speakers 10A
to 10E of the speaker device 1 can be arranged. The determination button 222 is pressed after
the user completes the placement of the speakers 10A to 10E, and is a button serving as a trigger
for entering into a determination state whether the placement position of the speakers 10A to
10E is appropriate. . That is, when the determination button 222 is pressed, the control unit 30
determines the arrangement state of the speakers 10A to 10E. The response button 223 is a
button for determining or canceling the result of the channel setting of the speakers 10A to 10E
by the channel setting adjustment unit 28.
[0017]
The setting information storage unit 23 stores information set in the speaker device 1. For
example, arrangement information for storing the arrangement states of the speakers 10A to
10E, and channel setting information for managing channels assigned to the speakers 10A to
10E are stored. These pieces of information are referred to when the wireless communication
unit 29 supplies the wireless signal output from the sound source unit 21.
[0018]
The number-of-speakers detection unit 24 has a function of detecting whether or not the
speakers 10A to 10E are mounted at predetermined positions of the main body unit 20.
Specifically, a center speaker detection unit 241 that detects whether or not the center speaker
10C is mounted on the main body unit 20, and a mounted speaker that detects the speakers 10A,
10B, 10D, and 10E mounted on the main body unit 20. It comprises the detection part 242, and
the number calculation part 243 of speakers which calculates the number of speakers mounted |
worn with the main-body part 20, and the number of speakers which are not mounted | worn.
[0019]
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7
The center speaker detection unit 241 determines whether the center speaker is mounted on the
main body unit 20 by detecting whether the mounting confirmation unit 13 of the center speaker
10C is detected. When the center speaker C is attached, an identifier for identifying the center
speaker 10C and a position on the main body 20 on which the center speaker 10C is attached
are acquired from the signal obtained from the attachment confirmation unit 13.
[0020]
The mounted speaker detection unit 242 detects whether or not the speakers 10A, 10B, 10D,
and 10E other than the center speaker 10C are mounted on the main body unit 20, and the
speakers 10A, 10B, 10D, and 10D mounted on the main body unit 20. It has a function of
obtaining an identifier of 10E and its mounting position.
[0021]
The number-of-speakers calculating unit 243 calculates the number of speakers mounted on the
main body 20 from the results detected by the center speaker detecting unit 241 and the
mounted speaker detecting unit 242, and the total number of speakers 10A to 10E is
predetermined. It has a function of calculating the number of speakers not attached to the main
body 20 from the number of speakers attached to the main body 20 and obtaining the identifier.
[0022]
The speaker direction detection unit 25 has a function of detecting the reception direction of the
response signal of the signal transmitted to the speaker and detecting the arrangement direction
of the speaker, for the speaker not attached to the main body unit 20.
As the speaker direction detection unit 25, for example, a plurality of microphones and a
comparison circuit that compares the magnitudes of audio signals obtained from these
microphones can be used.
FIG. 3 is a view schematically showing an installation state of a microphone as a speaker
direction detection unit attached to the main body. In FIG. 3, the case where three microphones
251 a to 251 c are provided on the surface of the main body 20 is shown. The three
microphones 251a to 251c are arranged so as to be at the apex of a triangle.
10-05-2019
8
[0023]
For example, the intensity of the sound output from the speaker disposed at the position R1 is
considered to be the strongest at the microphone 251a, and lower and equivalent to the
microphones 251b and 251c. Therefore, the speaker direction detection unit 25 can determine
that the speaker is closer to the microphone 251a and located on the rear left side when the
main unit 20 is installed on the front side. Further, it is considered that the intensity of the sound
outputted from the speaker disposed at the position R2 is equal in the microphones 251a and
251b and lower than that in the microphone 251c. Therefore, the speaker direction detection
unit 25 can determine that the speaker is present near the middle between the microphones
251a and 251b in the direction opposite to the microphone 251c, that is, in the rear center
direction. Further, it is considered that the intensity of the sound output from the speaker
disposed at the position R3 is the strongest at the microphone 251c, and lower and the same
intensity at the microphones 251a and 251b. Therefore, the speaker direction detection unit 25
can determine that the speaker is closer to the microphone 251c, that is, on the rear right side. In
this manner, the speaker direction detection unit 25 uses the difference in the reception intensity
of the microphones of the audio signals output from the speakers disposed around the main body
unit 20 to generate the sound source, that is, the speaker. Direction can be detected. The
microphones 251a to 251c in this description correspond to the sound collection unit in the
claims.
[0024]
The speaker placement position determination unit 26 determines the placement positions of the
five speakers 10A to 10E excluding the low frequency component speaker 10F, and creates and
sets placement information in which the identifiers of the speakers 10A to 10E are associated
with the placement positions. It has a function of storing in the information storage unit 23.
Specifically, with regard to the speakers mounted on the main body 20, it is possible to obtain
from the information obtained by the number-of-speakers detection unit 24 at which position of
the main body 20 the speaker having the identifier is mounted. As for the speakers not attached
to the main body 20, it is possible to obtain from which direction the speaker of the identifier is
arranged in which direction from the speaker direction detection unit 25. Therefore, the
arrangement position of each speaker is determined from these information. . At this time, the
identifiers of the speakers 10A to 10E are associated with the arrangement positions thereof.
[0025]
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The channel setting unit 27 associates the radio signals of the center, front left and right, and
rear left and right channels from the sound source unit 21 with the speakers 10A to 10E based
on the arrangement information obtained by the speaker arrangement position determination
unit 26. Have the ability to When the five speakers 10A to 10E are arranged substantially in the
front center, right and left, and rear left and right, set channels according to the arrangement of
the speakers 10A to 10E as 5.1 ch, and set five speakers When the channels 10A to 10E are
deviated from the above arrangement and can be set as 2ch, the channels are associated with the
necessary speakers as 2ch, and when the channels can not be set up as 2ch, the association is not
performed.
[0026]
The channel setting adjustment unit 28 has a function of notifying the user of the result of
associating the identifiers of the speakers 10A to 10E set by the channel setting unit 27 with the
channels of the wireless signal and performing adjustment processing by the user on the result. .
It also has a function of storing the adjustment result in the setting information storage unit 23
as channel setting information.
[0027]
The wireless communication unit 29 converts the acoustic information output from the sound
source unit 21 into a wireless signal based on the channel level information adjusted by the
channel setting adjustment unit 28 and converts each channel of the wireless signal into a
corresponding speaker. It has a supply function.
[0028]
Here, the process procedure of arrangement | positioning of the speakers 10A-10E in the
speaker apparatus 1 and a setting is demonstrated.
FIG. 4 is a flow chart showing a procedure in arranging a speaker by the speaker device of the
present invention. The control unit 30 of the main body unit 20 determines whether or not the
adjustment button 221 has been pressed by the user (step S11). If the adjustment button 221 is
not pressed (in the case of No at step S11), the process waits until it is pressed. When the
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10
adjustment button 221 is pressed (Yes in step S11), the speakers 10A to 10E are placed by the
user (step S12). Thereafter, the control unit 30 determines whether the user has pressed the
determination button 222 (step S13). That is, until the arrangement of the speakers 10A to 10E
by the user is completed (in the case of No in step S13), the waiting state is established. When
the user presses determination button 222 after the end of arrangement of speakers 10A to 10E
(in the case of Yes in step S13), the number-of-speakers detecting unit 24 determines the number
of speakers mounted on the main body 20 and the speakers not mounted. Detection processing
of the number of (step S14).
[0029]
FIG. 5 is a flowchart showing the procedure for detecting the number of speakers. First, the
center speaker detection unit 241 of the number-of-speakers detection unit 24 determines
whether the center speaker 10C is attached to the main body unit 20 (step S101). That is, the
attachment of the center speaker 10C to the main body 20 is confirmed depending on whether
the attachment confirmation unit 13 of the center speaker 10C is detected. When the center
speaker 10C is attached to the main body 20 (Yes in step S101), it is assumed that the main body
20 is disposed forward (step S102). Thereby, the position of each of the speakers 10A to 10E is
used as a reference in the following processing. In addition, the center speaker detection unit
241 acquires the mounting position of the center speaker 10C on the main body 20 from the
mounting confirmation unit 13 of the center speaker 10C (step S103). On the other hand, when
the center speaker 10C is not attached to the main body 20 at step S101 (No at step S101), it is
assumed that the main body 20 is disposed rearward (step S104). Thereby, the position of each
of the speakers 10A to 10E is used as a reference in the following processing.
[0030]
After that or after step S103, the attached speaker detection unit 242 of the number-of-speakers
detection unit 24 acquires the number of speakers other than the center speaker 10C attached to
the main unit 20 (step S105). That is, the mounting speaker detection unit 242 acquires, as the
number of speakers, the number of detections of the mounting confirmation unit 13 of the
speakers 10A, 10B, 10D, 10E other than the center speaker 10C. Next, identifiers and mounting
positions of the speakers 10A, 10B, 10D, 10E other than the center speaker 10C on the main
body 20 are acquired via the mounting confirmation unit 13 of each speaker (step S106). The
number-of-speakers calculation unit 243 of the number-of-speakers detection unit 24 determines
whether or not the center speaker 10C acquired at step S101 is attached to the main body 20,
and the center speakers 10C mounted at the main body 20 acquired at step S105. The number of
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11
speakers attached to the main unit 20 is calculated using the number of speakers (step S107).
Furthermore, the number-of-speakers calculating unit 243 calculates the number of speakers not
attached to the main unit 20 using the total number of speakers 10A to 10E and the number of
speakers attached to the main unit 20 calculated in step S107 (step S108). For example, in the
description of the present embodiment, the arrangement of the speakers excluding the lowfrequency component speaker among the 5.1 ch speakers is determined, so the total number of
the speakers is five. Therefore, for example, in the case where the number of speakers attached
to main body 20 determined in step S107 is three, the number of speakers not attached to main
body 20 is calculated to be 5−3 = 2. Thus, the process of detecting the number of speakers by
the number-of-speakers detecting unit 24 ends, and the process returns to the flowchart of FIG.
4.
[0031]
Thereafter, the speaker direction detection unit 25 performs a process of determining the
arrangement direction of the speakers not attached to the main body unit 20 (step S15). FIG. 6 is
a flowchart showing the procedure of the arrangement direction detection process of the
speakers. First, the speaker direction detection unit 25 acquires an identifier of a speaker not
mounted on the main body unit 20 from the results of the processes of steps S101 and S106 in
FIG. 5 (step S121). Next, a wireless signal is transmitted to one of the unmounted speakers via
the wireless communication unit 29 (step S122). Here, as for the correspondence between the
speakers 10A to 10E and the channels of the wireless signal, it is assumed that the state before
the process of changing the arrangement of the speakers and the setting or the state of the initial
setting is maintained.
[0032]
The speaker receives the wireless signal of the corresponding channel from the wireless
receiving unit 11, converts the signal into an audio signal by the audio output unit 12, and
outputs the audio signal. For example, when the speaker direction detection unit 25 has a
plurality of microphones as audio signal detection means, when the audio signals from the
speakers are received by the respective microphones (step S123), the differences in the intensity
of the audio signals received by the respective microphones The source direction of the audio
signal is specified from such as (step S124). That is, the arrangement direction of the speakers is
specified by the received audio signal. Then, the speaker identifier and the arrangement direction
are stored (step S125), and the speaker direction detection unit 25 determines whether or not
the arrangement direction is specified for all the speakers not attached to the main body unit 20
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(step S126). ).
[0033]
If there is a non-mounted speaker whose arrangement direction is not specified (in the case of No
at step S126), the process returns to step S122 and repeats the above-described process until
there is no non-mounted speaker whose arrangement direction is not specified. Do. On the other
hand, when there is no unmounted speaker whose arrangement direction is not specified (in the
case of Yes in step S126), the arrangement direction detection process of the speaker by the
speaker direction detection unit 25 ends, and the process of FIG. Will return.
[0034]
Next, the speaker placement position determination unit 26 creates placement information in
which the placement positions of all the speakers 10A to 10E have been determined based on the
results obtained in steps S14 to S15 (step S16). FIG. 7 is a diagram showing an example of the
arrangement information. The arrangement information of FIG. 7 is created based on the
arrangement of the speakers of FIG. The speaker placement position determining unit 26
determines the anteroposterior relationship of the speakers 10A to 10E based on the setting in
step S102 or S104 described above. The generated arrangement information is stored in the
setting information storage unit 23.
[0035]
Next, the channel setting unit 27 assigns channels to the speakers 10A to 10E based on the
arrangement information (step S17). Specifically, the wireless signal is composed of five channels
of front left, front center, front right, rear left and rear right, but these channels substantially
correspond to the arrangement positions of the respective speakers 10A to 10E. Assignment of
channels of radio signals. For example, when the speakers 10A to 10E have arrangement
information arranged at the front center, right and left, and rear right and left, channel
assignment is performed so that the speaker device 1 functions as 5.1 ch. Further, from the
arrangement information, if five channels are not assigned to the speakers 10A to 10E, they are
assigned to be two channels, and if two channels are not assigned, the channels are not assigned
to the speakers 10A to 10E.
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[0036]
Here, a specific example of the arrangement state of the speaker device 1 and the channel setting
will be described. 8-1 to 8-2 are plan views showing an example of the speaker device according
to the present invention, and FIG. 8-1 is a view showing a state in which the speaker is attached
to the main body, and FIGS. 2 is a figure which shows the state which the speaker was removed
from the main-body part. The speaker device 1 includes a disk-shaped main body portion 20 in
which a DVD player and a tuner serving as a sound source are incorporated, and five circular arc
shaped speakers 10A to 10E which can be attached to and removed from the peripheral portion
of the main body portion 20. It consists of The five speakers 10A to 10E have the same outer
dimensions, and can be attached to any of the speaker attachment holes 31a to 31e provided in
the peripheral portion of the main body 20. Here, identifiers of A to E are attached to the
respective speakers 10A to 10E, and the speaker 10C indicated by the identifier C is a center
speaker, and a mark 13C is attached to the drawing for the sake of convenience. Further, it is
assumed that the speaker mounting holes 31a to 31e of the main body unit 20 have identifiers a
to e, respectively. This is used to specify the position of the speaker mounted on the main body
20.
[0037]
FIGS. 9-1 to 9-7 schematically show the arrangement of the speakers, and FIGS. 9-1 to 9-4
schematically show the arrangement when the main body is in the front arrangement. FIG. 9-5 to
FIG. 9-7 are diagrams schematically showing an arrangement state in the case where the main
body portion is arranged in the rear direction. 10-1 to 10-7 are diagrams showing arrangement
information corresponding to the arrangement of the speakers in FIGS. 9-1 to 9-7, and FIGS. 11-1
to 11-5 are arrangements FIG. 5 shows the result of channel assignment based on status; In FIG.
9-1 to FIG. 9-7, an identifier is attached to each speaker and each speaker mounting hole as a
code.
[0038]
When the speakers A to E are arranged as shown in FIG. 9-1, the arrangement information as
shown in FIG. 10-1 can be obtained by the number-of-speakers detection unit 24, the speaker
direction detection unit 25, and the speaker arrangement position determination unit 26. . The
arrangement of the loudspeakers A to E is an ideal arrangement position of the loudspeakers in
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order to set the audio signal of 5ch in the front-rear direction. That is, as shown in FIG. 11A, the
channel setting unit 27 assigns channels to the speakers A to E, and the speaker device 1
functions as 5.1 ch. In the arrangement of the speakers A to E shown in FIG. 9-2, the positions of
the speakers A and D mounted on the main body 20 are not symmetrical, but the speakers A and
D in both the left and right directions with respect to the center speaker C Is located. Therefore,
as in the case of FIG. 9-1, the arrangement information of FIG. 10-2 is obtained, and the channel
setting unit 27 sets the channels to the speakers A to E as shown in FIG. 11-1 based on the
arrangement information. , And the speaker device 1 can function as 5.1 ch.
[0039]
In the arrangement of the speakers A to E shown in FIG. 9-3, the rear speakers A and E are
located in the left and right directions of the main body 20, but the speakers B and D other than
the front center speaker C are center speakers C. However, two of them are disposed in the right
direction (speaker mounting parts e and b of the main body 20). Therefore, it does not function
as 5.1 ch (Fig. 10-3). Since the speakers A and E arranged at the rear are arranged in the left and
right directions with respect to the main body 20, the channel setting unit 27 functions only the
two speakers A and E at the rear and the front speakers Channels are allocated to the speakers A
and E so that the speaker device 1 can function with 2 channels by disabling B, C, and D (FIG. 112). In FIG. 11B, "-" in the channel column indicates that a channel is not assigned.
[0040]
In the arrangement of the speakers A to E shown in FIG. 9-4, two speakers B and C including the
center speaker C are arranged in the front, and three speakers A, D and E are arranged in the
rear. (FIG. 10-4). In this arrangement, since the center speaker C is mounted on the main body
portion 20, the main body portion 20 is arranged forward. However, in the front, the right
speaker B is present but the left speaker is not present. Therefore, the speaker device 1 does not
function as 5.1 ch. In the rear, three speakers A, D, and E are disposed on the left, center, and
right sides of the main body 20, and therefore, they can not function as two channels. Therefore,
in this case, the channel setting unit 27 determines that it does not function as either 5.1 ch or 2
ch, and no channel is assigned to each of the speakers A to E (FIG. 11-3). In FIG. 11-3, "-" in the
channel column indicates that a channel is not assigned.
[0041]
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15
In the arrangement of the speakers A to E shown in FIG. 9-5, the center speaker C and the two
speakers A and B removed from the main body unit 20 in front are located at the center, left side
and right side with respect to the main body unit 20 Two speakers D and E which are disposed
and attached to the rear of the main body 20 are respectively disposed on the left and right sides
with respect to the main body 20 (FIG. 10-5). As in FIG. 9A, in order to set both 5.1 ch audio
signals in the front-rear direction, it is an ideal speaker arrangement position. That is, as shown
in FIG. 11-4, the channel setting unit 27 assigns channels to the speakers A to E, and the speaker
device 1 functions as 5.1 ch. Further, in the arrangement of the speakers A to E shown in FIG. 96, the positions of the rear speakers D and E mounted on the main body 20 are not symmetrical
in the left and right directions with respect to the center of the main body 20 Two speakers D, E
are located. Therefore, the arrangement of FIG. 10-6 is obtained as in the case of FIG. 9-5, and
the channel setting unit 27 sets the channels to the speakers A to E as shown in FIG. 11-4 based
on the arrangement information. The speaker device 1 can be assigned to function as 5.1 ch.
[0042]
In the arrangement of the speakers A to E shown in FIG. 9-7, four speakers A, B, D, E other than
the center speaker C are mounted on the main body 20, and only the center speaker C is
removed from the main body 20. (Figure 10-7). In this case, since there is no speaker in the leftright direction of the center speaker C, the speaker device 1 does not function as 5.1 ch.
However, since the speakers A, B, D, and E are disposed symmetrically on the left and right of the
main body portion 20, it is possible to cause the speaker device 1 to function as 2ch. Therefore,
the channel setting unit 27 causes the speaker device 1 to function with two channels by causing
the speakers A, B, D, and E disposed at the rear to function and preventing the front center
speaker C from functioning. That is, the left channel is assigned to the speakers A and B disposed
on the left side of the main body 20, and the right channel is assigned to the speakers D and E
disposed on the right side of the main body 20 (FIG. 11-5) . In FIG. 11-5, "-" in the channel
column indicates that a channel is not assigned.
[0043]
As described above, the channel setting unit 27 assigns channels to the speakers A to E based on
the arrangement information. Thereafter, the channel setting adjustment unit 28 performs
adjustment processing of the assigned channel setting (step S18). In this adjustment processing,
adjustment of channel setting of the speakers 10A to 10E and adjustment processing of left and
right balance processing are performed based on the content input from the input unit 22 by the
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user.
[0044]
FIG. 12 is a flow chart showing an example of the procedure for adjusting the channel setting.
First, the channel setting adjustment unit 28 determines whether the assigned speakers 10A to
10E function as 5.1 ch (step S141). If the channel functions as 5.1 ch (Yes in step S141), the user
is notified of the contents of the channel allocated in step S17 (step S151), and the channel
setting adjustment processing is completed, as shown in FIG. The process returns to the
flowchart.
[0045]
If the assigned speakers 10A to 10E do not function as 5.1 ch (No in step S141), it is determined
whether the left / right balance of the speakers 10A to 10E is bad (step S142). For example, with
reference to the arrangement information, when the numbers of the right and left of the
arrangement position are not equal, it is determined that the left and right balance of the
speakers 10A to 10E is bad. If the balance between the left and right of the speakers 10A to 10E
is bad (in the case of Yes in step S142), it is determined whether or not it functions as 5.1 ch if
corrected (step S143). This determination may be performed based on the table, for example,
whether the channel setting adjustment unit 28 holds in advance a table as to whether it
functions as 5.1 ch by correction with respect to the arrangement of the possible speakers 10A
to 10E. it can. When it functions as 5.1ch by correction (in the case of Yes in step S143), that is
notified to a user (step S144). Thereafter, it is determined whether or not the change is made by
the user (step S145). This determination can be made based on the input result by the user from
the response button 223 of the input unit 22. If a change is made by the user (Yes in step S145),
the process returns to step S12 in FIG. 4 and, for example, after rearranging the speakers 10A to
10E based on the content notified in step S144, Processing is repeatedly executed.
[0046]
If the left-right balance of the speakers 10A to 10E is not bad at step S142 (No at step S142), if it
does not function as 5.1 ch even if it is corrected at step S143 (No at step S143), or step S145 If
the user does not change the setting contents of the channel (No in step S145), it is determined
whether the speaker functions as 2ch (step S146). When it does not function as 2ch (in the case
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of No in step S146), it is determined whether the balance of the left and right of the speakers
10A to 10E is bad (step S147). If the left-right balance of the speakers 10A to 10E is not good (in
the case of Yes in step S147), it is further determined whether or not it functions as 2ch if
corrected (step S148). When it functions as 2ch by correction (in the case of Yes in step S148),
that is notified to a user (step S149). Thereafter, it is determined whether or not the change is
performed by the user (step S150), and if the change is performed by the user (in the case of Yes
in step S150), the process returns to step S12 of FIG. After rearranging the speakers 10A to 10E
based on the contents to be processed, the above-described process is repeatedly performed.
[0047]
On the other hand, if it functions as 2ch at step S146 (if Yes at step S146) or if the balance
between the left and right of the speaker is not bad at step S147 (if No at step S147), the user is
prompted at step S17. The content of the allocated channel is notified (step S151), the
adjustment processing of the channel setting is completed, and the processing returns to the
flowchart of FIG. In addition, even if it is not functioned as 2ch even if it is corrected in step S148
(No in step S148) or when the setting contents of the channel are not changed by the user in step
S150 (No in step S150), The user is warned that a channel can not be assigned (step S152), and
the process ends.
[0048]
Note that the notification to the user in steps S144, S149, S151, and S152 described above can
be notified, for example, via all the speakers or any of the speakers. In addition, a display unit
made of a liquid crystal display or the like may be provided in the main body unit 20, and the
setting contents of the above-described channel may be notified to the display unit.
[0049]
Returning to the flowchart of FIG. 4 again after step S151, the channel setting adjustment unit 28
determines the control method of the speakers 10A to 10E, that is, the content of the channel
setting (step S19). At this time, the contents of the determined channel setting are stored in the
setting information storage unit 23 as channel setting information, and the set channel is
assigned to each of the speakers 10A to 10E. Then, the channel setting adjustment unit 28
notifies the user of the completion of the process of arranging the speakers 10A to 10E (step
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S20). As described above, this notification may be notified from the speakers 10A to 10E by
sounds or predetermined sounds, or may be displayed on the display unit when the speaker
device 1 has the display unit. . Thus, the process of arranging the speaker device 1 is completed.
[0050]
An audio output process of the speaker device 1 in which the speakers 10A to 10E are arranged
as described above will be described. The wireless communication unit 29 transmits acoustic
signals of a plurality of channels from the sound source unit 21 to the corresponding speakers
10A to 10E as wireless signals based on the channel setting information of the setting
information storage unit 23. The wireless receiving unit 11 of each of the speakers 10A to 10E
receives the wireless signal of the corresponding channel, converts it into an audio signal by the
audio output unit 12, and outputs it as a sound. As a result, audio signals corresponding to the
arrangement position are output from the speakers 10A to 10E, and a realistic sound field is
constructed.
[0051]
In the above description, the case of the 5.1ch speaker device 1 has been described as an
example, but the present invention is not limited to this, and the same applies to a speaker device
that outputs audio signals of a plurality of channels. It is possible. In the above description,
whether the position of the main unit 20 is forward or backward is determined depending on
whether the center speaker 10C is attached to the main unit 20 or not. Not limited to the speaker
10C, other speakers 10A, 10B, 10D, and 10E may be used.
[0052]
According to the present embodiment, the audio signal from the main unit 20 is supplied to each
of the speakers 10A to 10E by wireless, and the front and rear left and right of the speakers 10A
to 10E are determined depending on whether the center speaker 10C is attached to the main unit
20. Since the arrangement relationship of is specified, the speakers 10A, 10B, 10D, 10E other
than the center speaker 10C are automatically assigned channels according to their arrangement
positions. That is, the user can freely arrange the speakers 10A, 10B, 10D, 10E other than the
center speaker 10C without being aware that this speaker is the front left speaker and this
speaker is the rear right speaker. Can. In addition, since the channels to be allocated to the
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speakers 10A to 10E are determined based on the arrangement result of the free speakers 10A
to 10E by the user, the users having no knowledge of the channel setting can easily arrange the
speakers 10A to 10E. Can do.
[0053]
It is a block diagram which shows typically the structure of the speaker apparatus by this
invention. It is a figure showing an example of arrangement of a speaker. It is a figure which
shows typically the installation state of the microphone attached to the main-body part. It is a
flowchart which shows the procedure in the case of the arrangement | positioning of the speaker
by the speaker apparatus of this invention. It is a flowchart which shows the procedure of a
detection process of the number of speakers. It is a flowchart which shows the procedure of the
arrangement | positioning direction detection process of a speaker. It is a figure which shows an
example of arrangement | positioning information. It is a top view which shows an example of
the speaker apparatus by this invention, and is a figure which shows the state in which the main
body part was equipped with the speaker. It is a figure which shows the state from which the
speaker was removed from the main-body part by the speaker apparatus of FIG. 8-1. It is a figure
which shows typically an example of the arrangement | positioning state of a speaker. It is a
figure which shows typically an example of the arrangement | positioning state of a speaker. It is
a figure which shows typically an example of the arrangement | positioning state of a speaker. It
is a figure which shows typically an example of the arrangement | positioning state of a speaker.
It is a figure which shows typically an example of the arrangement | positioning state of a
speaker. It is a figure which shows typically an example of the arrangement | positioning state of
a speaker. It is a figure which shows typically an example of the arrangement | positioning state
of a speaker. It is a figure which shows the arrangement | positioning information corresponding
to the arrangement | positioning state of the speaker of FIG. 9-1. It is a figure which shows the
arrangement | positioning information corresponding to the arrangement | positioning state of
the speaker of FIG. 9-2. It is a figure which shows the arrangement | positioning information
corresponding to the arrangement | positioning state of the speaker of FIG. 9-3. It is a figure
which shows the arrangement | positioning information corresponding to the arrangement |
positioning state of the speaker of FIG. 9-4. It is a figure which shows the arrangement |
positioning information corresponding to the arrangement | positioning state of the speaker of
FIGS. 9-5. It is a figure which shows the arrangement | positioning information corresponding to
the arrangement | positioning state of the speaker of FIGS. 9-6. It is a figure which shows the
arrangement | positioning information corresponding to the arrangement | positioning state of
the speaker of FIGS. 9-7. It is a figure which shows the result of the channel setting based on the
arrangement | positioning state of FIGS. 10-1. It is a figure which shows the result of channel
setting based on the arrangement | positioning state of FIG. 10-3. It is a figure which shows the
result of channel setting based on the arrangement | positioning state of FIG. 10-4. It is a figure
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which shows the result of channel setting based on the arrangement | positioning state of FIG.
10-5. It is a figure which shows the result of channel setting based on the arrangement |
positioning state of FIGS. 10-7. It is a flowchart which shows an example of the procedure of
adjustment processing of a channel setting.
Explanation of sign
[0054]
DESCRIPTION OF SYMBOLS 1 speaker device 10A to 10E speaker 10F speaker for low frequency
components 11 wireless receiver 12 audio output unit 13 attachment check unit 14, 30 control
unit 20 main body unit 21 sound source unit 22 input unit 23 setting information storage unit
24 speaker number detection unit 25 Speaker direction detection unit 26 Speaker placement
position determination unit 27 Channel setting unit 28 Channel setting adjustment unit 29
Wireless communication unit
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