JPH02296499A - Television set incorporating acoustic reproducing device - Google Patents

Television set incorporating acoustic reproducing device

Info

Publication number
JPH02296499A
JPH02296499A JP1118007A JP11800789A JPH02296499A JP H02296499 A JPH02296499 A JP H02296499A JP 1118007 A JP1118007 A JP 1118007A JP 11800789 A JP11800789 A JP 11800789A JP H02296499 A JPH02296499 A JP H02296499A
Authority
JP
Japan
Prior art keywords
speaker
signal
center
ray tube
cathode ray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1118007A
Other languages
Japanese (ja)
Other versions
JPH0810959B2 (en
Inventor
Akira Tagami
亮 田上
Seiichi Ishikawa
石川 清一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1118007A priority Critical patent/JPH0810959B2/en
Publication of JPH02296499A publication Critical patent/JPH02296499A/en
Publication of JPH0810959B2 publication Critical patent/JPH0810959B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Stereophonic System (AREA)

Abstract

PURPOSE:To locate a sound image in the center of a cathode ray tube and to make the sound image coincident with the position of a video image by providing an imaginary sound image control means applying digital signal processing to a signal to be reproduced from a center speaker. CONSTITUTION:In order to realize the effect of a signal S inputted by an audio signal input means 1 as the signal were reproduced from an imaginary speaker 4 by using a real speaker 3, an imaginary sound source control means 5 applies the processing of a transmission characteristic BD to the inputted signal, the signal is amplified by an amplifier 2 and outputted from the real speaker 3.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は入力されたオーディオ信号を再生するセンター
スピーカの虚音源をブラウン管中央に作ることにより、
音像をブラウン管中央に定位させることのできる音響再
生装置内蔵型テレビセットに関するものである。
[Detailed Description of the Invention] Industrial Field of Application The present invention creates a virtual sound source in the center of a cathode ray tube for a center speaker that reproduces input audio signals.
This invention relates to a television set with a built-in sound reproduction device that can localize a sound image to the center of a cathode ray tube.

蒜纂暴梅鼻 従来の技術 近年、ビデオやレーザーディスクに代表されるように映
画ソフトが数多く出回ってきた。またテレビの大画面化
が進み、映像は映画館なみの迫力惑、臨場窓を家庭内で
も体感できるようになってきた。それに伴って、大画面
サイズの映像にマツチさせたテレビ用音響再生装置の開
発が進められている。
Conventional technology In recent years, a large number of movie software, typified by video and laser discs, have become available. In addition, as TV screens have become larger, it has become possible to experience the same impressive visuals and immersive windows at home as in movie theaters. In line with this trend, development of sound reproduction devices for televisions that are compatible with large-screen images is underway.

従来の音響再生装万内藏テレビセントの構成を、以下図
面を参照しながら説明する。
The configuration of the conventional sound reproduction equipment Wannai Kuro TV Center will be explained below with reference to the drawings.

第2図は従来の音響再生装置内蔵テレビセットの構成を
示したものである。第2図において、lはオーディオ信
号入力手段、2は増幅器、3はセンタースピーカ、8は
テレビボックス、9はブラウン管である。
FIG. 2 shows the configuration of a conventional television set with a built-in sound reproduction device. In FIG. 2, 1 is an audio signal input means, 2 is an amplifier, 3 is a center speaker, 8 is a television box, and 9 is a cathode ray tube.

以上のように構成された従来の音響再生装置内蔵テレビ
セットの動作について以下説明する。
The operation of the conventional television set with a built-in sound reproduction device configured as described above will be described below.

オーディオ信号入力手段1によって入力されたオーディ
オ信号は増幅器2で増幅され、ブラウン管9の下方に置
かれたセンタースピーカ3で再生される。この様にテレ
ビブラウン管中央下に設置されたセンタースピーカから
オーディオ信号を再生させることによって、音像を左右
方向について中央に定位させることができた。
The audio signal input by the audio signal input means 1 is amplified by the amplifier 2 and reproduced by the center speaker 3 placed below the cathode ray tube 9. By reproducing the audio signal from the center speaker installed below the center of the TV cathode ray tube in this way, it was possible to localize the sound image to the center in the horizontal direction.

発明が解決しようとする課題 しかしながら上記のような構成において、テレビ放送等
のようにおもに人が画面中央に映っている場合、左右方
向の定位に関しては映像と一致させることができるが、
上下方向に関しては音像がセンタースピーカの位置(こ
の場合はブラウン管の中央下)に定位してしまい、映像
はブラウン管中央、音像はブラウン管中央下というよう
に、映像と音像との上下方向がずれてしまうという問題
点を有していた。
Problems to be Solved by the Invention However, in the above configuration, when people are mainly shown in the center of the screen, such as in TV broadcasts, it is possible to match the localization in the left and right direction with the image;
In the vertical direction, the sound image is localized to the center speaker position (in this case, the bottom center of the cathode ray tube), and the image and sound image are misaligned in the vertical direction, such as the image at the center of the cathode ray tube and the sound image at the bottom center of the cathode ray tube. There was a problem.

本発明は上記問題点に鑑み、センタースピーカから再生
された信号をブラウン管中央に定位させ、映像の位置と
一致させることのできる音響再生装置内蔵テレビセット
を提供するものである。
In view of the above problems, the present invention provides a television set with a built-in sound reproduction device that can localize the signal reproduced from the center speaker at the center of the cathode ray tube and match the position of the image.

課題を解決するための手段 上記課題を解決するために、本発明の音響再生装置内蔵
テレビセットは次のように構成されている。
Means for Solving the Problems In order to solve the above problems, the television set with a built-in sound reproduction device of the present invention is configured as follows.

オーディオ信号が入力される信号入力手段と、テレビブ
ラウン管の中央に音像を定位させるために入力された信
号をディジタル信号処理する虚音源制御用手段と、テレ
ビブラウン管の中央下に、あるいは中央上に、あるいは
その両方に音響放射面を持つセンタースピーカとを具備
し、虚音源制御ヰ段の出力がセンタースピーカに印加さ
れるような構成となっている。
a signal input means into which an audio signal is input; an imaginary sound source control means for digitally processing the input signal to localize a sound image at the center of the television cathode ray tube; and below or above the center of the television cathode ray tube. Alternatively, both of them are provided with a center speaker having an acoustic radiation surface, and the output of the virtual sound source control stage is applied to the center speaker.

作用 センタースピーカから再生されるべき信号をディジタル
信号処理する虚音像制御手段を設けることによって、そ
の音像をブラウン管中央に定位させ、映像の位置と一致
させることが可能となる。
By providing a virtual sound image control means that digitally processes the signal to be reproduced from the effect center speaker, it becomes possible to localize the sound image at the center of the cathode ray tube and match the position of the image.

実施例 以下、本発明の一実施例について図面を参照しながら説
明する。
EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

第1図は、本発明の音響再生装置内蔵テレビセントを示
すものである。第1図において、■はオーディオ信号入
力手段、2は増幅器、3はセンター実スピーカ(以下、
実スピーカと記す)、4はセンター虚スピーカ(以下、
環スピーカと記す)、5は入力した信号を信号処理し環
スピーカ4を作るための虚音源制御手段、8はテレビボ
ンクス、9はブラウン管である。受聴者がブラウン管9
の中心を向いていると仮定すると、実スピーカから左耳
に達する伝達関数と右耳に達する伝達関数とは等しくな
る。環スピーカからの伝達関数の場合も同様である。6
は実スピーカ3から受聴者の左及び右の耳に達する伝達
関数であり■]。で記述することとし、ブラウン管中央
に位置した環スピーカ4からの伝達関数Rを7として図
面では示している。オーディオ信号人力手段1によって
入力された信号Sが環スピーカ4であたかも再生されて
いるような効果を実スピーカ3を用いて実現するために
、虚音源制御手段5は人力された信号にEDという伝達
特性の処理を施して、その信号が増幅器2によって増幅
され実スピーカ3から出力される。このとき受聴者の左
、右の耳元における信号PRL、PRRは PRL=PRR=S*E、*HD   −・・・・・(
1)である。また環スピーカ4で信号Sを再生したとき
の受聴者の左、右の耳元における信号PIL。
FIG. 1 shows a TV station with a built-in sound reproduction device according to the present invention. In Fig. 1, ■ is an audio signal input means, 2 is an amplifier, and 3 is a center real speaker (hereinafter referred to as
4 is the center imaginary speaker (hereinafter referred to as the real speaker), and 4 is the center imaginary speaker (hereinafter,
5 is an imaginary sound source control means for signal processing the input signal to create the ring speaker 4, 8 is a television box, and 9 is a cathode ray tube. Listener is CRT 9
Assuming that the speaker is facing the center of the speaker, the transfer function from the actual speaker to the left ear is equal to the transfer function from the right ear. The same applies to the transfer function from the ring loudspeaker. 6
are the transfer functions from the real speaker 3 to the listener's left and right ears; The transfer function R from the ring speaker 4 located at the center of the cathode ray tube is shown as 7 in the drawing. In order to use the real speaker 3 to realize an effect as if the signal S inputted by the audio signal human input means 1 is being played back by the ring speaker 4, the virtual sound source control means 5 transmits the signal ED to the human input signal. After processing the characteristics, the signal is amplified by an amplifier 2 and output from an actual speaker 3. At this time, the signals PRL and PRR at the left and right ears of the listener are PRL=PRR=S*E, *HD -... (
1). Also, when the signal S is reproduced by the ring speaker 4, the signal PIL is at the listener's left and right ears.

PrRは P l  = P I R= S * R・・・・・・
(2)である、受聴者の左の耳元での信号PRL、PI
Lが等しく、受聴者の右の耳元での信号PRR。
PrR is P l = P I R = S * R...
(2), the signals PRL and PI at the listener's left ear are
L is equal and the signal PRR at the listener's right ear.

PIRが等しければ、実スピーカ3で再生しても、環ス
ピーカ4で再生したときと同し効果が得られる。したが
って上式から、 E、=R/HD           ・・・・・・(
3)としてE。が決定される。虚音源制御手段5におい
て式(3)で表されるEDを実現することによって環ス
ピーカ4を作ることができ、実スピーカ3で再生された
信号をブラウン管中央に定位させることができる。
If the PIRs are equal, the same effect can be obtained even when the real speaker 3 reproduces the signal as when the ring speaker 4 reproduces the signal. Therefore, from the above formula, E, = R/HD (
3) as E. is determined. By realizing the ED expressed by equation (3) in the virtual sound source control means 5, the ring speaker 4 can be created, and the signal reproduced by the real speaker 3 can be localized at the center of the cathode ray tube.

また実スピーカをブラウン管中央上に設置、した場合の
虚音源制御手段5で実現する伝達特性E。
Also, the transfer characteristic E achieved by the virtual sound source control means 5 when a real speaker is installed above the center of the cathode ray tube.

は(4)式で表される。is expressed by equation (4).

EU=R/H,=−−−・−(4) HIJ ニブラウン管中央上に設置した実スピーカから
耳に達する伝達関数 また実スピーカをブラウン管中央下と上に設置した場合
は、入力信号にE、の伝達特性の処理を施した信号を中
央下のスピーカから、E、の伝達特性の処理を施した信
号を中央上のスピーカから再生すればよい。
EU=R/H,=----・-(4) HIJ N Transfer function from the real speaker installed above the center of the cathode ray tube to the ears.Also, if the real speakers are installed below and above the center of the cathode ray tube, the input signal has E. It is sufficient to reproduce the signal processed with the transfer characteristic of , from the lower center speaker, and the signal processed with the transfer characteristic of E, from the upper center speaker.

これらの場合も実スピーカで再生された信号をブラウン
管中央の虚スピーカの位置に定位させることができる。
In these cases as well, the signal reproduced by the real speaker can be localized to the position of the imaginary speaker at the center of the cathode ray tube.

発明の効果 センタースピーカから再生されるべき信号をディジタル
信号処理する虚音像制御手段を設けることによって、そ
の音像をブラウン管中央に定位させ、映像の位置と一致
させることが可能となる。
Effects of the Invention By providing a virtual sound image control means that digitally processes the signal to be reproduced from the center speaker, it becomes possible to localize the sound image at the center of the cathode ray tube and match the position of the image.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明特許請求範囲の一実施例である音響再生
装置内蔵テレビセットのブロック図、第2図は従来の音
響再生装置内蔵テレビセットのブロック図である。 1・・・・・・オーディオ信号入力手段、2・・・・・
・増幅器、3・・・・・・センター実スピーカ、4・・
・・・・センター虚スピーカ、5・・・・・・虚音源制
御手段、6・・・・・実スピーカからの伝達関数、7・
・・・・・虚スピーカからの伝達関数、8・・・・・・
テレビボックス、9・・・・・・ブラウン管。
FIG. 1 is a block diagram of a television set with a built-in sound reproduction device, which is an embodiment of the claims of the present invention, and FIG. 2 is a block diagram of a conventional television set with a built-in sound reproduction device. 1...Audio signal input means, 2...
・Amplifier, 3...Center real speaker, 4...
... Center imaginary speaker, 5 ... Imaginary sound source control means, 6 ... Transfer function from real speaker, 7.
...Transfer function from imaginary speaker, 8...
TV box, 9... CRT.

Claims (1)

【特許請求の範囲】[Claims] オーディオ信号が入力される信号入力手段と、テレビブ
ラウン管の中央に音像を定位させるために入力された信
号をディジタル信号処理する虚音源制御手段と、テレビ
ブラウン管の中央下に、あるいは中央上に、あるいはそ
の両方に音響放射面を持つセンタースピーカとを具備し
、虚音源制御手段の出力がセンタースピーカに印加され
ることを特徴とする音響再生装置内蔵テレビセット。
a signal input means into which an audio signal is input; an imaginary sound source control means for digital signal processing of the input signal in order to localize a sound image at the center of the television cathode ray tube; What is claimed is: 1. A television set with a built-in sound reproduction device, comprising a center speaker having sound radiation surfaces on both sides, and an output of the virtual sound source control means being applied to the center speaker.
JP1118007A 1989-05-11 1989-05-11 TV set with built-in sound reproduction device Expired - Lifetime JPH0810959B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1118007A JPH0810959B2 (en) 1989-05-11 1989-05-11 TV set with built-in sound reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1118007A JPH0810959B2 (en) 1989-05-11 1989-05-11 TV set with built-in sound reproduction device

Publications (2)

Publication Number Publication Date
JPH02296499A true JPH02296499A (en) 1990-12-07
JPH0810959B2 JPH0810959B2 (en) 1996-01-31

Family

ID=14725743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1118007A Expired - Lifetime JPH0810959B2 (en) 1989-05-11 1989-05-11 TV set with built-in sound reproduction device

Country Status (1)

Country Link
JP (1) JPH0810959B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078176A1 (en) * 2007-12-19 2009-06-25 Panasonic Corporation Video/audio output system
WO2009090822A1 (en) * 2008-01-15 2009-07-23 Sharp Kabushiki Kaisha Audio signal processing device, audio signal processing method, display device, rack, program, and recording medium
JP2009253344A (en) * 2008-04-01 2009-10-29 Sharp Corp Av system and operating method of av system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850781U (en) * 1981-09-18 1983-04-06 三洋電機株式会社 speaker boxes
JPS58155193U (en) * 1982-04-09 1983-10-17 松下電器産業株式会社 speaker device
JPS6016800A (en) * 1984-06-12 1985-01-28 Matsushita Electric Ind Co Ltd Acoustic reproducing device
JPS62269599A (en) * 1986-05-19 1987-11-24 Mitsubishi Electric Corp Speaker device
JPS63287300A (en) * 1987-05-20 1988-11-24 Mitsubishi Electric Corp Stereo reproducing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850781U (en) * 1981-09-18 1983-04-06 三洋電機株式会社 speaker boxes
JPS58155193U (en) * 1982-04-09 1983-10-17 松下電器産業株式会社 speaker device
JPS6016800A (en) * 1984-06-12 1985-01-28 Matsushita Electric Ind Co Ltd Acoustic reproducing device
JPS62269599A (en) * 1986-05-19 1987-11-24 Mitsubishi Electric Corp Speaker device
JPS63287300A (en) * 1987-05-20 1988-11-24 Mitsubishi Electric Corp Stereo reproducing device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078176A1 (en) * 2007-12-19 2009-06-25 Panasonic Corporation Video/audio output system
US20100034403A1 (en) * 2007-12-19 2010-02-11 Ko Mizuno Video and audio output system
US8433085B2 (en) 2007-12-19 2013-04-30 Panasonic Corporation Video and audio output system
JP5366827B2 (en) * 2007-12-19 2013-12-11 パナソニック株式会社 Audiovisual output system
WO2009090822A1 (en) * 2008-01-15 2009-07-23 Sharp Kabushiki Kaisha Audio signal processing device, audio signal processing method, display device, rack, program, and recording medium
JP5095758B2 (en) * 2008-01-15 2012-12-12 シャープ株式会社 Audio signal processing apparatus, audio signal processing method, display apparatus, rack, program, and recording medium
JP2009253344A (en) * 2008-04-01 2009-10-29 Sharp Corp Av system and operating method of av system

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Publication number Publication date
JPH0810959B2 (en) 1996-01-31

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