JPH03163997A - Multichannel audio signal reproducing device - Google Patents

Multichannel audio signal reproducing device

Info

Publication number
JPH03163997A
JPH03163997A JP1304248A JP30424889A JPH03163997A JP H03163997 A JPH03163997 A JP H03163997A JP 1304248 A JP1304248 A JP 1304248A JP 30424889 A JP30424889 A JP 30424889A JP H03163997 A JPH03163997 A JP H03163997A
Authority
JP
Japan
Prior art keywords
channel
audio signal
speakers
low
audio
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.)
Pending
Application number
JP1304248A
Other languages
Japanese (ja)
Inventor
Kazuo Hirasawa
和夫 平沢
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1304248A priority Critical patent/JPH03163997A/en
Publication of JPH03163997A publication Critical patent/JPH03163997A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a sufficient surrounding feeling by extracting the low band component of each channel to adjust the level and adding it to the audio signal of each channel and adjusting the acoustic pressure level in accordance with the number of audio channels or speakers to reproduce sounds from speakers of all channels. CONSTITUTION:Audio signals of respective channels are divided to high band components and low band components with 100Hz as the boundary by HPFs 17, 21, 24, and 27 and LPFs 18, 22, 25, and 28, and low band components are added by an adder 19, and the output signal level is adjusted in an attenuating circuit 30 by the indication of an attenuation indicating part 31. The output of the attenuating circuit 30 is added to high band components of audio signals 2, 7, 10, and 13 of respective channels by adding circuits 20, 23, 26, and 29, and results are converted to sounds through amplifiers 3, 8, 11, and 14 by speakers 4, 9, 12, and 15. Thus, an audio signal reproducing device of sufficient surrounding feeling is obtained without using large-diameter or special woofers.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は多チャンネル音声信号再生装置に関し、詳し
くは低音域の再生音圧を増強する装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multi-channel audio signal reproducing device, and more particularly to a device for enhancing the reproduced sound pressure in the bass range.

〔従来の技術〕[Conventional technology]

第4図は従来の多チャンネル音声信号再生装置のブロッ
ク回路図で、 (1)は音声信号復調回路、(2)は音
声信号復調回路(1)から出力される右チャンネル音声
信号(以下、「音声信号(2)」という)、 (3)は
この音声信号(2)を電力増幅するアンプ、 (4)は
アンプ(3)出力を音声に変換するスピーカ、(5)は
スピーカ(4)を構成するツィータ、 (6)はスピー
カ(4)を構成するウーハ、 (7)は音声信号復調回
路(1)から出力されるセンターチャンネル音声信号(
以下、「音声信号(7)」という)、 (8)はこの音
声信号(7)を電力増幅するアンプ、 (9)はアンプ
(8)の出力を音声に変換するスピーカ、.(10)は
音声信号復調回路(1)から出力される左チャンネル音
声信号(以下、「音声信号(10)Jという) 、(1
1)はこの音声信号(lO)を電力増幅するアンプ、(
l2)はアンプ(lO)の出力を音声に変換するスピー
カ、(13)は音声信号復調回路(1〉から出力される
後方チャンネル音声信号(以下、「音声信号(13)J
という)、(14)はこの音声信号(13)を電力増幅
するアンプ、(15)はアンプ(14)の出力を音声に
変換するスピーカ、(16)は視聴者である。
FIG. 4 is a block circuit diagram of a conventional multi-channel audio signal reproducing device, in which (1) is an audio signal demodulation circuit, and (2) is a right channel audio signal output from the audio signal demodulation circuit (1). (3) is an amplifier that amplifies the power of this audio signal (2), (4) is a speaker that converts the output of the amplifier (3) into audio, and (5) is a speaker (4) that amplifies the power of this audio signal (2). (6) is the woofer that constitutes the speaker (4); (7) is the center channel audio signal (7) output from the audio signal demodulation circuit (1);
(hereinafter referred to as "audio signal (7)"), (8) is an amplifier that amplifies the power of this audio signal (7), (9) is a speaker that converts the output of the amplifier (8) into audio, . (10) is the left channel audio signal (hereinafter referred to as "audio signal (10) J") output from the audio signal demodulation circuit (1), (1
1) is an amplifier that amplifies the power of this audio signal (lO), (
l2) is a speaker that converts the output of the amplifier (lO) into audio, and (13) is a rear channel audio signal (hereinafter referred to as "audio signal (13) J" output from the audio signal demodulation circuit (1)).
), (14) is an amplifier that amplifies the power of this audio signal (13), (15) is a speaker that converts the output of the amplifier (14) into audio, and (16) is a viewer.

つぎに動作について説明する。例えばハイビジョンテレ
ビジョン放送の音声信号のように、4チャンネル分の音
声信号情報を含む信号が音声信号復調回路(1)に人力
されると、入力信号が各チャンネルに復調ざれ、各音声
信号(2) . (7)、(1(1)および(13)と
して出力される。各チャンネルにおける以降の動作は同
一であるので、音声信号(2)を例にとって信号処理動
作を説明する。
Next, the operation will be explained. For example, when a signal containing audio signal information for four channels, such as an audio signal from high-definition television broadcasting, is manually input to the audio signal demodulation circuit (1), the input signal is demodulated into each channel, and each audio signal (2 ). (7), (1 (1) and (13)). Since the subsequent operations in each channel are the same, the signal processing operation will be explained using audio signal (2) as an example.

音声信号(2)はアンプ(3)に入力され、電力増幅さ
れた後スピーカ(4)に人力される。スピーカ(4)は
通常複数のスピーカユニットで構成されており、数十H
zから20KHzまでの音声周波数帯域を各スピーカユ
ニットで分担し再生するように構成されており、ツィー
タ(5)にて数百Hz〜20KHzの音声を再生し、ウ
ーハ(6)にて数十Hz〜数百Hzの音声を再生する。
The audio signal (2) is input to an amplifier (3), amplified in power, and then input to a speaker (4). The speaker (4) is usually composed of multiple speaker units, and is made up of several tens of H.
It is configured so that the audio frequency band from z to 20 KHz is shared and reproduced by each speaker unit, the tweeter (5) reproduces audio at several hundred Hz to 20 KHz, and the woofer (6) reproduces audio at several tens of Hz. ~Plays audio at several hundred Hz.

このようにして再生された4チャンネルの音声信号は、
視聴者(16)の前方から3チャンネル分の音声が送出
され、後方から1チャンネルの音声が送出されるので、
視聴者(16)にサラウンド感を与える。
The 4-channel audio signal reproduced in this way is
Three channels of audio are sent from the front of the viewer (16), and one channel of audio is sent from the rear.
To give the viewer (16) a sense of surround sound.

このサラウンド感を十分に与えるためには100Hz以
下の重低音を再生する必要があるので、ウーハ(6)に
は大口径のスピーカユニット、あるいは重低音を再生す
るための特殊な方式が採られたスピーカが用いられるの
が通例である。
In order to fully provide this surround feeling, it is necessary to reproduce deep bass at frequencies below 100Hz, so the woofer (6) uses a large-diameter speaker unit or a special method for reproducing deep bass. Typically, speakers are used.

(発明が解決しようとする課題) 従来の多チャンネル音声信号再生装置は以上のように構
威されているので、サラウンド感を十分に与えるための
重低音再生ウーハを設けなくてはならず、スピーカの形
状が大きくなったり、スピーカにモーショナルフィード
バックを行なったりする特殊なスピーカが必要になる等
の問題点があった。
(Problem to be Solved by the Invention) Since the conventional multi-channel audio signal reproducing device is configured as described above, it is necessary to provide a deep bass reproduction woofer to give a sufficient surround feeling, and the speaker There were problems such as the size of the speaker becoming larger and the need for a special speaker to provide motion feedback to the speaker.

この発明は上記のような問題点を解消するためになされ
たもので、大口径ウーハや、特殊なスピーカを用いずど
も十分な低音音圧の得られる多チャンネル音声信号再生
装置を得ることを目的とする。
This invention was made to solve the above-mentioned problems, and its purpose is to provide a multi-channel audio signal reproducing device that can obtain sufficient low sound pressure without using a large-diameter woofer or special speakers. shall be.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係る多チャンネル音声信号再生装置は、各チ
ャンネルの音声信号の低音域成分を抜き出して他のチャ
ンネルに加算する手段を備えた点を特徴とする。
The multi-channel audio signal reproducing apparatus according to the present invention is characterized in that it includes means for extracting low frequency components of the audio signal of each channel and adding them to other channels.

〔作用〕[Effect]

この発明における各チャンネルの低音域成分を抜き出し
て他のチャンネルに加算する手段は、各チャンネルの低
域成分を抜きとり、この抜きとった低域成分を各チャン
ネルに加算するので、全チャンネルのスピーカから各チ
ャンネルの低域成分が再生される。このため、低域成分
の音圧が十分に高くなり、小口径のウーハを用いてもサ
ラウンド効果を十分に上げることができる。
The means for extracting the low frequency components of each channel and adding them to other channels in this invention extracts the low frequency components of each channel and adds the extracted low frequency components to each channel. The low frequency components of each channel are reproduced. Therefore, the sound pressure of the low frequency component becomes sufficiently high, and even if a small diameter woofer is used, the surround effect can be sufficiently enhanced.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を図について説明する。第1
図において、 (17) . (21) , (24)
 , (27)は音声信号の高域成分を通すハイバスフ
ィルタ(以下、rH P FJ という)、 (ta)
 , (22) , (25) , (27)は音声信
号の低域成分を通すローバスフィルタ(以下、rLPF
Jという)、(19),(20).(23),(28)
 , (2!l)は入力信号を加算する加算回路、(3
0)は減衰回路、(3l)は減衰回路(30)の減衰量
を設定する減衰指示部である。
An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (17). (21) , (24)
, (27) is a high-pass filter (hereinafter referred to as rH P FJ ) that passes the high-frequency components of the audio signal, (ta)
, (22), (25), and (27) are low-pass filters (rLPF) that pass the low-frequency components of the audio signal.
J), (19), (20). (23), (28)
, (2!l) is an addition circuit that adds input signals, (3!
0) is an attenuation circuit, and (3l) is an attenuation instruction unit that sets the amount of attenuation of the attenuation circuit (30).

つぎに、動作について説明する。Next, the operation will be explained.

各チャンネルの音声信号(2) , (7) , (1
0) , (13)は、それぞれH P F (17)
 , (21) , (24) , (27)およびL
 P F (18) , (22) , (25) ,
 (28) によって、1 00Hzを境界として高域
成分と低域成分に分けられ、低域成分は、加算器(19
)で加算され、減衰回路(30)で、減衰指示都(31
)の指示にしたがって出力信号レベルが調整される。
Audio signals of each channel (2), (7), (1
0) and (13) are respectively H P F (17)
, (21), (24), (27) and L
P F (18) , (22) , (25) ,
(28), it is divided into high-frequency components and low-frequency components with 100Hz as the boundary, and the low-frequency components are divided into high-frequency components and low-frequency components by an adder (19
), and the attenuation circuit (30) adds the attenuation instruction capital (31
) the output signal level is adjusted according to the instructions.

この減衰回路(30)は、例えば、音声チャンネル数の
多寡あるいは使用するスピーカの数の多少により音量を
調整するためのものである。すなわち、スピーカの数が
多い場合には高音域音声との音圧バランスを取る必輿か
らである。
This attenuation circuit (30) is for adjusting the volume depending on, for example, the number of audio channels or the number of speakers used. That is, when there are a large number of speakers, it is necessary to balance the sound pressure with high-frequency sounds.

減衰指示部(31)の構成は例えば、 ■ 低音域調整ボリュームを内蔵しており、操作者がこ
のボリュームによってその音量を自在に調整できるもの
The structure of the attenuation instruction section (31) is, for example: (1) It has a built-in low frequency adjustment volume, and the operator can freely adjust the volume using this volume.

■ スピーカ数を入力できるように構成されており、ス
ピーカの数に応じて減衰回路(30)の減衰率を指示す
るもの。
(2) It is configured so that the number of speakers can be input, and the attenuation rate of the attenuation circuit (30) is instructed according to the number of speakers.

■ 音声チャンネル数を入力できるように構成されてお
り、音声チャンネル数に応じて減衰回路(30)の減衰
率を指示するもの。
(2) It is configured so that the number of audio channels can be input, and the attenuation rate of the attenuation circuit (30) is instructed according to the number of audio channels.

のいずれか、またはこれらを組み合せたものである。or a combination of these.

つぎに、減衰回路(30)の出力は、加算回路(20)
 , (23) , (2B) , (29)によって
各チャンネルの音声信号(2) , (7) . (1
0) , (13)の高域成分とそれぞれ加算され、ア
ンプ(3) , (8) , (11) , (14)
を介してそれぞれスピーカ(4) , (9) , (
12) , (15)で音声に変換される。
Next, the output of the attenuation circuit (30) is sent to the addition circuit (20).
, (23), (2B), (29), the audio signals (2), (7) . (1
0), (13) and are added to the high frequency components of amplifiers (3), (8), (11), (14).
via speakers (4), (9), (
12) and converted to voice in (15).

このようにすると、4つのスピーカ(4) , (9)
 ,(12) , (15)からは、各チャンネルの低
域成分が加算された音声が送出されるので、大口径のウ
ーハや、特殊なウーハを用いなくてもサラウンド感の大
きい多チャンネル音声信号再生装置が得られる。
In this way, four speakers (4), (9)
, (12) and (15) output the audio with the low frequency components of each channel added, so a multi-channel audio signal with a great surround feel can be achieved without using a large diameter woofer or a special woofer. A playback device is obtained.

第2図はこの発明の他の実施例のブロック回路図で、第
1図の実施例の異なる点は、減衰回路(30)および減
衰指示部(31)に代えて、利得調整回路(40) ,
 (41) , (42) , (43)および利得制
御回路(44)を設けた点である。
FIG. 2 is a block circuit diagram of another embodiment of the present invention, and the difference from the embodiment of FIG. ,
(41), (42), (43) and a gain control circuit (44) are provided.

つぎに、この実施例の動作を説明する。Next, the operation of this embodiment will be explained.

加算回路(l9)の出力は利得調整回路(40) , 
(41) ,(42) , (43)へ導かれ、それぞ
れ信号レベルが各チャンネルの必要に応じて増幅または
減衰されて出力される。その利得の値は利得制御回路(
44)により指示される。この利得の値の制御は次のよ
うな必要性があって行われるものである。
The output of the adder circuit (l9) is sent to the gain adjustment circuit (40),
(41), (42), and (43), and the signal level is amplified or attenuated according to the needs of each channel and output. The gain value is determined by the gain control circuit (
44). This control of the gain value is performed due to the following necessity.

■ 使用するスピーカが全て同一でない場合、各スピー
カにおいて低音域を再生するスピーカユニットの感度が
異なり、再生音圧のバランスを取るため各音声チャンネ
ルごとに信号レベルの調整を取る必要がある。
■ If the speakers used are not all the same, the sensitivity of the speaker unit that reproduces the low frequency range will be different for each speaker, and it will be necessary to adjust the signal level for each audio channel in order to balance the reproduced sound pressure.

■ 音声チャンネル数が増すと低音域の再生チャンネル
数も増すので、音声チャンネル数に応じた減衰を低音域
信号に与える必要がある。
■ As the number of audio channels increases, the number of bass-range reproduction channels also increases, so it is necessary to apply attenuation to the bass-range signal in proportion to the number of audio channels.

■ 使用するスピーカの数が増すと低音域の再生スピー
カ数が増すので、スピーカ数に応じた減衰を低音域信号
に与える必要がある。
■ As the number of speakers used increases, the number of speakers that reproduce bass frequencies increases, so it is necessary to provide attenuation to the bass frequency signal in proportion to the number of speakers.

つぎに、利得制御回路(44)は、例えば次のように構
成されている。
Next, the gain control circuit (44) is configured as follows, for example.

■ 利得制御回路(44)内に各利得調整回路(40)
〜(43)の利得調整用ボリュームを内蔵しており、操
作者がこのボリュームによってその利得を自在に調整で
きるもの、 ■ 音声チャンネル数を人力できるように構成されてお
り、音声チャンネル数に応じて利得調整回路(30)〜
(43)の利得を制御するもの、■ スピーカ数を入力
できるように構成されており、スピーカの数に応じて利
得調整回路(40)〜(43)の利得を制御するもの、 のいずれか、またはこれらを組合せたものである。
■ Each gain adjustment circuit (40) in the gain control circuit (44)
~ (43) A built-in gain adjustment volume that allows the operator to freely adjust the gain using this volume; Gain adjustment circuit (30) ~
(43) A device that controls the gain of the gain adjustment circuits (40) to (43), which is configured so that the number of speakers can be input, and that controls the gain of the gain adjustment circuits (40) to (43) according to the number of speakers. or a combination of these.

このようにすると、各チャンネルのスピーカの特性が相
違する場合でも、また、使用するスピーカの数が変わっ
ても、それぞれ再生した低域音圧レベルを最適レベルに
調整できる効果が得られる。
In this way, even if the characteristics of the speakers of each channel are different, or even if the number of speakers used changes, it is possible to adjust the reproduced low frequency sound pressure level to the optimum level.

第3図はこの発明の他の実施例のブロック回路図で、第
1図および第2図に示した実施例と相違する点は、各チ
ャンネルの低域成分なLPF(18) . (22) 
, (25) . (211)で抜き出し、加算器(5
0),(51) . (52) , (53)でそれぞ
れ他のチャンネルの低域成分を加算し、利得調整回路(
40) . (41) , (42) ,(43)でそ
れぞれ出力レベルを調整して加算回路(20) , (
23) . (28) . (29)で当該チャンネル
の音声信号(2) , (7) . (10) . (
13)で加算する構成とした点である。
FIG. 3 is a block circuit diagram of another embodiment of the present invention, which differs from the embodiment shown in FIGS. 1 and 2 by the LPF (18) . (22)
, (25). (211), adder (5
0), (51). (52) and (53) add the low frequency components of the other channels, respectively, and add the gain adjustment circuit (
40). (41), (42), and (43) respectively adjust the output level and add the adder circuits (20) and (
23). (28). (29), the audio signal of the channel (2), (7) . (10). (
This is the point in which the addition is performed in step 13).

このようにすると、利得調整回路(40)〜(43)に
よって、当該チャンネル以外のチャンネルの低域成分の
加算量を、チャンネルごとに調整することができ、HP
Fを省略して第2図の実施例と同様の効果が得られる。
In this way, the gain adjustment circuits (40) to (43) can adjust the amount of addition of low frequency components of channels other than the relevant channel for each channel.
By omitting F, the same effect as the embodiment shown in FIG. 2 can be obtained.

なお、上記実施例ではハイバスフィルタと、ローパスフ
ィルタのカットオフ周波数が100Hzの場合を示した
が、必要に応じて近傍の異なる周波数であっても良く、
また、ハイパスフィルタとローパスフィルタのカットオ
フ周波数が異なっていても良い。
In addition, in the above embodiment, the case where the cutoff frequency of the high-pass filter and the low-pass filter is 100 Hz is shown, but if necessary, different frequencies in the vicinity may be used.
Further, the cutoff frequencies of the high-pass filter and the low-pass filter may be different.

また、上記実施例では、4チャンネル音声信号の場合を
示したが、チャンネル数は4チャンネルに限るものでな
く、ざらにスピーカ数も4個のスピーカに限らず他の数
であっても上記実施例と同様の効果を奏する。
In addition, although the above embodiment shows the case of a 4-channel audio signal, the number of channels is not limited to 4 channels, and the number of speakers is not limited to 4, but the above implementation can also be performed with other numbers. It has the same effect as the example.

また、上記実施例では、スピーカのシステムを2ウェイ
の2スピーカユニットで構成したものを示したが、この
構成に限られるものではなく、最低域の音域を再生する
スピーカユニットに、ローパスフィルタを経由した信号
を加えるよう構成することにより上記実施例と同様の効
果を奏する。
In addition, in the above embodiment, the speaker system is configured with 2-way 2-speaker units, but the configuration is not limited to this. By configuring to add the signal, the same effects as in the above embodiment can be obtained.

(発明の効果) 以上のように、この発明によれば、各チャンネルの音声
信号の低域成分を抜き出してレベルを調整して各チャン
ネルの音声信号に加算し、全てのチャンネルのスピーカ
から全チャンネルの低域成分を音声チャンネル数あるい
はスピーカの数に応じてその音圧レベルを調整して再生
するように構成したので、大口径のウーハや、特別な低
域音声再生用のスピーカを用いずども十分なサラウンド
感が得られる多チャンネル音声信号再生装置が得られる
効果がある。
(Effects of the Invention) As described above, according to the present invention, the low-frequency components of the audio signals of each channel are extracted, the levels are adjusted, and the components are added to the audio signals of each channel. Since the structure is configured to adjust the sound pressure level and reproduce the low frequency components according to the number of audio channels or the number of speakers, it can be played without using a large diameter woofer or special speakers for low frequency audio reproduction. This has the effect of providing a multi-channel audio signal reproducing device that provides a sufficient surround feeling.

1111

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

第1図ないし第3図はこの発明のそれぞれ異なる一実施
例のブロック回路図、第4図は従来の多チャンネル音声
再生装置のブロック回路図である。 (1)・・・音声信号復調回路、 (3) . (8)
 , (o) . (14)・・・アンプ、 (4) 
. (9) , (12) . (15)・・・スピー
カ、(17) . (21) . (24) , (2
7)・・・H P F,   (18),(22).(
25),(28)  ・・・L P  F ,  (1
9),(20),(23),(26).(29) . 
(50) . (51) . (52) , (53)
・・・加算回路、(30・・・減衰回路、(31)−・
・減衰指示部、 (40) , (41) . (42
) .(43)・・・利得調整回路、(44)・・・利
得制御回路。 なお、各図中、同一符号は同一 または相当部分を示す
1 to 3 are block circuit diagrams of different embodiments of the present invention, and FIG. 4 is a block circuit diagram of a conventional multi-channel audio reproduction apparatus. (1)...Audio signal demodulation circuit, (3). (8)
, (o). (14)...Amplifier, (4)
.. (9), (12). (15)...Speaker, (17). (21). (24) , (2
7)...HP F, (18), (22). (
25), (28) ... L P F , (1
9), (20), (23), (26). (29).
(50). (51). (52) , (53)
...addition circuit, (30...attenuation circuit, (31)--
- Attenuation instruction section, (40), (41). (42
). (43)...gain adjustment circuit, (44)...gain control circuit. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (3)

【特許請求の範囲】[Claims] (1)多チャンネルの音声信号を高域成分と低域成分と
にそれぞれ分離する手段と、各チャンネルの低域成分を
加算する手段と、この低域成分加算信号のレベルをチャ
ンネル数またはスピーカの数に応じて適当な音圧レベル
が得られるレベルに調整する手段と、この低域成分加算
信号を各チャンネルの高域成分にそれぞれ加算する手段
と、これら各チャンネルの音声信号で当該チャンネルの
スピーカをそれぞれ駆動する手段とを備えた多チャンネ
ル音声信号再生装置。
(1) A means for separating a multi-channel audio signal into high-frequency components and low-frequency components, a means for adding the low-frequency components of each channel, and a means for adjusting the level of this low-frequency component addition signal depending on the number of channels or speakers. means for adjusting the level to obtain an appropriate sound pressure level according to the number of speakers; means for adding this low-frequency component addition signal to the high-frequency components of each channel; and a means for adding the low-frequency component addition signal to the high-frequency component of each channel, A multi-channel audio signal reproducing device comprising means for driving each of the.
(2)請求項1において、各チャンネルの高域成分に加
算する低域成分加算信号のレベルを、各チャンネルごと
に調整する手段を備えたことを特徴とする多チャンネル
音声信号再生装置。
(2) The multi-channel audio signal reproducing apparatus according to claim 1, further comprising means for adjusting the level of the low-frequency component addition signal to be added to the high-frequency component of each channel for each channel.
(3)多チャンネルの音声信号からそれぞれ低域成分を
取り出す手段と、この各チャンネルの低域成分を当該チ
ャンネルを除いた組み合せでもってそれぞれ加算する手
段と、これらの低域成分加算信号のレベルを各別に調整
して当該チャンネルの音声信号にそれぞれ加算する手段
と、これら各チャンネルの音声信号で当該チャンネルの
各スピーカをそれぞれ駆動する手段とを備えた多チャン
ネル音声信号再生装置。
(3) means for extracting low-frequency components from multi-channel audio signals; means for adding the low-frequency components of each channel in combination excluding the channel; and means for adjusting the level of these low-frequency component addition signals. A multi-channel audio signal reproducing device comprising means for adjusting each channel separately and adding them to the audio signal of the channel, and means for driving each speaker of the channel with the audio signal of each channel.
JP1304248A 1989-11-21 1989-11-21 Multichannel audio signal reproducing device Pending JPH03163997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1304248A JPH03163997A (en) 1989-11-21 1989-11-21 Multichannel audio signal reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1304248A JPH03163997A (en) 1989-11-21 1989-11-21 Multichannel audio signal reproducing device

Publications (1)

Publication Number Publication Date
JPH03163997A true JPH03163997A (en) 1991-07-15

Family

ID=17930773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1304248A Pending JPH03163997A (en) 1989-11-21 1989-11-21 Multichannel audio signal reproducing device

Country Status (1)

Country Link
JP (1) JPH03163997A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010538572A (en) * 2007-09-06 2010-12-09 エルジー エレクトロニクス インコーポレイティド Audio signal decoding method and apparatus
US8359113B2 (en) 2007-03-09 2013-01-22 Lg Electronics Inc. Method and an apparatus for processing an audio signal
US8463413B2 (en) 2007-03-09 2013-06-11 Lg Electronics Inc. Method and an apparatus for processing an audio signal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8359113B2 (en) 2007-03-09 2013-01-22 Lg Electronics Inc. Method and an apparatus for processing an audio signal
US8463413B2 (en) 2007-03-09 2013-06-11 Lg Electronics Inc. Method and an apparatus for processing an audio signal
US8594817B2 (en) 2007-03-09 2013-11-26 Lg Electronics Inc. Method and an apparatus for processing an audio signal
JP2010538572A (en) * 2007-09-06 2010-12-09 エルジー エレクトロニクス インコーポレイティド Audio signal decoding method and apparatus
US8422688B2 (en) 2007-09-06 2013-04-16 Lg Electronics Inc. Method and an apparatus of decoding an audio signal
US8532306B2 (en) 2007-09-06 2013-09-10 Lg Electronics Inc. Method and an apparatus of decoding an audio signal

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