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JP2008103947

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DESCRIPTION JP2008103947
To realize a speaker system capable of outputting sound with richer audio quality with more
preference. A speaker system 100 includes a plurality of speakers (a first speaker 32a and a
second speaker 32b), adjusts a specific frequency portion in an audio signal input from a tuner
circuit 2, and controls each speaker Since the sound quality of the sound to be output can be
switched, for example, when viewing a news program, switching to an audio mode in which the
language can be clearly heard, or when viewing a music program, the force or presence By
switching to a certain music mode, etc., it is possible to switch to various sound quality suitable
for the content of the program, and to output sound with a more pleasing sound quality.
[Selected figure] Figure 2
スピーカシステム
[0001]
The present invention relates to a speaker system.
[0002]
Conventionally, by providing a plurality of (for example, three, four, six, etc.) speakers in a video
display apparatus for viewing various video contents, the sound and presence that are realistic
with video can be obtained. There are known video display devices that make it possible to enjoy
audio (see, for example, Patent Documents 1 to 4).
01-05-2019
1
Japanese Unexamined Patent Publication No. 2005-175771 Japanese Unexamined Patent
Publication No. 2005-175771 Japanese Unexamined Patent Publication No. 7-222278
[0003]
However, in the case of the above-mentioned prior art, the plurality of speakers provided in the
device is a combination of a low range speaker (woofer) and a middle to high range speaker
(tweeter) or the like, and a speaker system unique to the device Therefore, although it is possible
to enjoy the sound of the predetermined sound quality, for example, the classical music program
and the popular music program must be viewed with the sound of the same sound quality, and
the user's preference is necessarily satisfied I did not let it go.
[0004]
An object of the present invention is to provide a speaker system capable of outputting sound
with richer audio quality.
[0005]
In order to solve the above problems, the invention according to claim 1 is a speaker system
including a plurality of speakers for outputting a sound according to an audio signal input from a
predetermined signal source, which corresponds to the audio signal. Storage means for storing
control data relating to an audio genre in advance; determination means for determining an
audio genre corresponding to the audio signal; Sound quality switching means for switching the
sound quality switching means, the sound quality switching means, based on the control data
stored in the storage means in association with the audio genre determined by the determination
means, It is characterized by switching the sound quality.
[0006]
The invention according to claim 2 is a speaker system including a plurality of speakers for
outputting a sound according to an audio signal input from a predetermined signal source,
wherein a specific frequency portion in the audio signal is adjusted to be each speaker It is
characterized in that it comprises sound quality switching means for switching the sound quality
of the sound outputted every time.
[0007]
The invention according to claim 3 is the speaker system according to claim 2, further
comprising: storage means for storing in advance control data concerning an audio genre
corresponding to the audio signal, wherein the sound quality switching means stores the
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2
information in the storage means. It is characterized in that the sound quality of the sound to be
output is switched for each speaker in accordance with the control data being stored.
[0008]
The invention according to claim 4 is the speaker system according to claim 3, further
comprising: determination means for determining an audio genre corresponding to the audio
signal, wherein the sound quality switching means is an audio genre determined by the
determination means. The sound quality of the sound output for each speaker is switched based
on the control data stored in the storage means in association with the above.
[0009]
According to the first aspect of the present invention, the speaker system includes a plurality of
speakers, adjusts the specific frequency portion in the audio signal input from the predetermined
signal source, and outputs the sound for each speaker. The sound quality can be switched.
That is, the speaker system can adjust the specific frequency part in the audio signal to switch
the sound quality of the sound to be output for each speaker. For example, when watching a
news program, the voice can be heard clearly It is possible to switch to various sound quality
suitable for the contents of the program, such as switching to a mode, or switching to a music
mode with a sense of presence or presence, etc. when viewing a music program It can output
sound with rich sound quality.
Then, the user can enjoy the content with a sound with the optimum sound quality for the
content (program) to be viewed.
[0010]
The speaker system includes storage means for storing in advance control data relating to the
audio genre corresponding to the audio signal, and switches the sound quality of the sound to be
output for each speaker according to the control data stored in the storage means. Therefore, by
storing control data for outputting a desired sound quality sound from the speaker in the storage
means, the speaker system can output various sound quality sounds such as the sound quality
sound desired by the user. .
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3
In particular, the speaker system can determine the audio genre corresponding to the audio
signal input from the predetermined signal source, and based on the control data stored in the
storage unit in association with the determined audio genre. Since the sound quality of the sound
to be output can be switched for each speaker, the speaker system controls, for example, an
audio genre corresponding to the audio signal based on identification data (for example, EPG
data) included in the audio signal. Data can be acquired as selected from the storage means, and
based on the acquired control data, a sound with optimum sound quality can be automatically
output from each speaker.
[0011]
According to the second aspect of the present invention, the speaker system includes a plurality
of speakers, adjusts the specific frequency portion in the audio signal input from the
predetermined signal source, and outputs the sound for each speaker. The sound quality can be
switched.
That is, the speaker system can adjust the specific frequency part in the audio signal to switch
the sound quality of the sound to be output for each speaker. For example, when watching a
news program, the voice can be heard clearly It is possible to switch to various sound quality
suitable for the content of the program, such as switching to a mode or to switch to a music
mode with a sense of presence or presence, etc. It can output rich sound quality.
Then, the user can enjoy the content with the sound having the optimum sound quality for the
content (program) to be viewed.
[0012]
According to the invention of claim 3, it goes without saying that the same effect as that of the
invention of claim 2 can be obtained, and the speaker system stores in advance control data
regarding an audio genre corresponding to the audio signal. Since the means is provided, the
sound quality of the sound output for each speaker can be switched according to the control data
stored in the storage means.
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That is, by storing control data for causing the speaker to output a desired sound quality sound
in the storage means, the speaker system can output various sound quality sounds such as the
sound quality sound desired by the user.
[0013]
According to the invention of claim 4, it goes without saying that the same effect as the invention
of claim 3 can be obtained, and the speaker system is an audio genre corresponding to an audio
signal input from a predetermined signal source. The sound quality of the sound output for each
speaker can be switched based on the control data stored in the storage means in association
with the determined audio genre. That is, for example, based on identification data (for example,
EPG data) included in the audio signal, the speaker system acquires control data related to the
audio genre corresponding to the audio signal from the storage unit so as to be selected. Based
on the acquired control data, it is possible to automatically output the sound with the optimum
sound quality from each speaker.
[0014]
Hereinafter, specific embodiments of the speaker system according to the present invention will
be described with reference to the drawings. However, the scope of the invention is not limited to
the illustrated example. In the present embodiment, the case where the speaker system according
to the present invention is applied to a television receiver will be described as an example. FIG. 1
is an external perspective view showing a television receiver 10 provided with a speaker system
100, and FIG. 2 is a block diagram showing the main configuration of the television receiver 10.
As shown in FIG.
[0015]
As shown in FIG. 2, the television receiver 10 receives a broadcast signal present in a frequency
band corresponding to a desired channel via the antenna 1, and a broadcast signal received by
the tuner circuit 2. A control unit 3 for taking out an audio signal and a video signal from a
speaker system, a speaker system 100 for outputting a sound based on the audio signal taken
out by the control unit 3, and a monitor 4 for displaying a video based on the video signal taken
out by the control unit 3 And an EEPROM 5 as storage means for storing in advance control data
corresponding to an audio genre relating to an audio signal, and an infrared light receiver 6 for
communicating with the remote control 11.
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[0016]
In the speaker system 100, a first amplifier 31a, first speakers 32a and 32a connected to the first
amplifier 31a, a second amplifier 31b, and second speakers 32b and 32b connected to the
second amplifier 31b. And.
The frequency characteristics of the first amplifier 31a and the second amplifier 31b in the
speaker system 100 are different. For example, as shown in FIG. 3, the output of the second
amplifier 31b is output based on the reference level of the output of the first amplifier 31a. Is set
low (for example, 4 dB lower). On the other hand, since the high frequency and low frequency
levels are the same at the same frequency, the boost amounts of the first amplifier 31a and the
second amplifier 31b are different from each other. Since the boost amount of the second
amplifier 31b is increased, it is possible to increase the force of the speaker output by the second
amplifier 31b.
[0017]
As shown in FIG. 1, the first speaker 32 a and the second speaker 32 b of the speaker system
100 are respectively disposed on the left and right of the television receiver 10. That is, the
speaker system 100 includes four speakers for outputting a sound corresponding to the audio
signal input from the tuner circuit 2 which is a predetermined signal source.
[0018]
The tuner circuit 2 can receive a broadcast signal according to a desired channel selection
frequency via the antenna 1, amplifies the received broadcast signal, and outputs the amplified
signal to the control unit 3. The tuner circuit 2 performs a channel selection process of switching
a broadcast program so as to select a broadcast signal according to a channel input from the
remote control 11 or the like among a plurality of broadcast signals related to broadcasts of
many receivable channels. .
[0019]
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The control unit 3 stores various processing data, for example, a CPU that executes various
processing and control, a program for executing various processing and control, a ROM storing
various data, and various processing data. It has a RAM as a work area. The control unit 3 is
selected by tuning a predetermined channel based on a channel signal accompanying the
operation of the remote control 11 or a channel signal accompanying the channel button (not
shown) of the television main body. A process of causing the tuner circuit 2 to receive a
broadcast signal according to the frequency of the channel is executed. Further, the control unit
3 executes a process of extracting an audio signal and a video signal from the broadcast signal
received by the tuner circuit 2.
[0020]
Then, the control unit 3 executes a process of outputting an audio signal in the broadcast signal
to the first amplifier 31a and the second amplifier 31b of the speaker system 100, and functions
as a part of the speaker system 100. Further, the control unit 3 executes a process of outputting
a video signal in the broadcast signal to the monitor 4.
[0021]
In particular, the control unit 3 functions as a determination unit that determines an audio genre
corresponding to an audio signal input from the tuner circuit 2 that is a predetermined signal
source. Specifically, based on program guide data (EPG data) included in the audio signal, the
control unit 3 as the determination means determines, for example, a general audio genre in the
audio mode corresponding to the audio signal. Control is performed to determine whether the
genre is a popular genre of music mode, a jazz genre, a classical genre, etc.
[0022]
The control unit 3 also functions as a sound quality switching unit that adjusts the specific
frequency part of the input audio signal to switch the sound quality of the sound output for each
speaker. For example, the control unit 3 as the sound quality switching means is associated with
the audio genre switching signal based on the audio genre switching signal accompanying the
depression and operation of a button (not shown) provided on the operation panel of the remote
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control 11. In accordance with the control data (for example, control data stored in the EEPROM
5), control is performed to adjust the specific frequency portion in the audio signal and switch
the sound quality of the sound to be output for each speaker. Further, the control unit 3 as the
sound quality switching means is based on the control data stored in the EEPROM 5 in
association with the audio genre determined by the control unit 3 as the determination means,
the sound quality of the sound output for each speaker Execute control to switch.
[0023]
Specifically, based on control data stored in the EEPROM 5, the control unit 3 as the sound
quality switching means executes control processing of boosting or cutting a specific frequency
in the audio signal in an equalizer (not shown). Thus, the control signal, which is an audio signal
whose sound quality has been adjusted, is output to each amplifier to switch the sound quality of
the sound to be output for each speaker.
[0024]
The EEPROM 5 stores in advance an audio genre relating to an audio signal and control data
corresponding to various sound output modes.
Specifically, for example, as control data corresponding to a general voice genre in the standard
voice mode, first control data (CONT1) for outputting a signal in which the frequency
characteristic of the voice signal is flattened to the first amplifier 31a. And second control data
(CONT2) for turning off the output of the second amplifier 31b are set in combination. The
control data enables the speaker system 100 to output a clear and clear sound from the first
speaker 32 a by adjusting the specific frequency output to adjust the sound quality. Also, for
example, as control data corresponding to a popular genre in the music mode, first control data
(CONT1) for outputting a signal whose frequency characteristic is made flat to the first amplifier
31a, It is set in combination with second control data (CONT2) for outputting to the second
amplifier 31b a signal in which the bass / treble part is high-level boosted. Based on this control
data, the speaker system 100 adjusts the specific frequency output to adjust the sound quality,
and the sound with emphasis on realism by boosting the safe level (general level) can be
transmitted from the first speaker 32a and the second speaker 32b. It becomes possible to
output. Also, for example, as control data corresponding to the jazz genre in the music mode, a
first control data for outputting a signal in which the bass portion of the audio signal is high level
boost and the high tone portion is high level boosted to the first amplifier 31a. (CONT1) and
second control data (CONT2) for outputting to the second amplifier 31b a signal in which the
bass part of the audio signal is high-level boosted and the treble part is high-level boosted . With
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this control data, the speaker system 100 can output the sound of the HiFi powerful sound
whose sound quality has been adjusted by adjusting the specific frequency output from the first
speaker 32 a and the second speaker 32 b. Also, for example, as control data corresponding to
the classical genre in the music mode, a first control data for outputting a signal in which the low
tone part of the audio signal is medium level boost and the high tone part is medium level
boosted to the first amplifier 31a. (CONT1) and second control data (CONT2) for outputting to
the second amplifier 31b a signal in which the bass part of the audio signal is boosted at the
middle level and the treble section is boosted at the middle level .
With this control data, the speaker system 100 can output, from the first speaker 32a and the
second speaker 32b, a HiFi powerful sound whose sound quality has been adjusted by adjusting
a specific frequency output and a sound that emphasizes realism Become. Also, for example, as
control data corresponding to the music mode dynamic mode, first control data (CONT1) for
outputting a signal in which the frequency characteristic of the audio signal is flat to the first
amplifier 31a, and The second control data (CONT2) for outputting the signal whose frequency
characteristic is flattened to the second amplifier 31b is set in combination. The control data
enables the speaker system 100 to output, from the first speaker 32a and the second speaker
32b, the sound of the powerful sound whose sound quality has been adjusted by adjusting the
specific frequency output.
[0025]
The monitor 4 is, for example, a liquid crystal display device, and displays an image or an image
corresponding to a video signal in a broadcast signal received by the tuner circuit 2 through the
antenna 1.
[0026]
The infrared light receiving unit 6 receives a remote control signal transmitted by the remote
control 11 in response to depression of a button (not shown) provided on the operation panel of
the remote control 11 and is operated, and outputs the remote control signal to the control unit
3.
[0027]
Then, the television receiver 10 having such a configuration adjusts the specific frequency
portion of the audio signal in the broadcast signal received via the tuner circuit 2 based on the
predetermined control data to set each speaker (first The sound quality of the sound to be output
can be switched for each of the speaker 32a and the second speaker 32b), and various sound
quality sounds richer in preference can be output.
01-05-2019
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[0028]
Specifically, when viewing video content according to a broadcast signal received by the
television receiver 10, the control unit 3 as the sound quality switching means corresponds to
the audio genre and the sound output mode stored in the EEPROM 5. Based on the control data,
it is possible to switch the sound quality of the sound to be output for each speaker.
In particular, the control unit 3 as the sound quality switching means refers to the program guide
data (EPG data) included in the audio signal, and is optimum for the video content based on the
control data regarding the audio genre corresponding to the audio signal Sounds of a reasonable
quality can be automatically output from the speakers (the first speaker 32a and the second
speaker 32b).
In addition, the control unit 3 as the sound quality switching means can output the sound of the
user-desired sound quality, which is switched by the operation of the remote control 11 by the
user, from each speaker.
That is, when watching a news program or the like in the television receiver 10, clear voice
output is performed according to the standard voice mode (general voice genre), and a classical
orchestra concert is watched in the music program. In this case, a sound with a sense of presence
corresponding to the classical genre in the music mode is output, etc., and the sound quality is
suitable for the program to be viewed, and is a sound with a more pleasing tone quality. It is
possible to output Then, the user can enjoy the program (image content) with the sound quality
that is optimum for the program to be viewed.
[0029]
As described above, in the case of the television receiver 10 provided with the speaker system
100 according to the present invention, the sound quality of the sound output from the first
speaker 32a and the sound quality of the sound output from the second speaker 32b are made
different from each other With various sound quality sounds, such as a standard sound mode
where you can clearly hear the language, a music mode where you can enjoy music such as jazz
and classical music, etc. Since it is possible to output sound of sound quality richer in preference,
the user can enjoy various programs (video content) with sound of desired sound quality.
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[0030]
In the above embodiment, although the case where the speaker system 100 is applied to the
television receiver 10 has been described as an example, the present invention is not limited to
this, and the speaker is used for other AV devices. The system may be applied.
Further, the number of speakers is not limited to four, and may be any number, such as
arranging six speakers of three each on the left and right.
[0031]
In addition, it is needless to say that other specific details and the like can be appropriately
changed.
[0032]
It is a perspective view showing a television receiver provided with a speaker system concerning
the present invention.
It is a block diagram which shows the principal part structure of a television receiver provided
with the speaker system which concerns on this invention. It is explanatory drawing regarding
the frequency characteristic of the 1st amplifier in a speaker system, and a 2nd amplifier.
Explanation of sign
[0033]
DESCRIPTION OF SYMBOLS 2 Tuner circuit (signal source) 3 Control part (judgment means,
sound quality switching means) 31a 1st amplifier 31b 2nd amplifier 32a 1st speaker 32b 2nd
speaker 4 monitor 5 EEPROM (storage means) 10 television receiver 100 speaker system
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