JPH03800Y2 - - Google Patents
Info
- Publication number
- JPH03800Y2 JPH03800Y2 JP15653885U JP15653885U JPH03800Y2 JP H03800 Y2 JPH03800 Y2 JP H03800Y2 JP 15653885 U JP15653885 U JP 15653885U JP 15653885 U JP15653885 U JP 15653885U JP H03800 Y2 JPH03800 Y2 JP H03800Y2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- delay circuit
- input
- audio signals
- circuit
- 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.)
- Expired
Links
- 230000005236 sound signal Effects 0.000 claims description 39
- 230000002265 prevention Effects 0.000 claims description 8
- 230000001934 delay Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000002238 attenuated effect Effects 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 4
- 230000005355 Hall effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案はオーデイオ装置に係り、特に臨場感に
秀れたサラウンドシステムを提供できるオーデイ
オ装置に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an audio device, and particularly to an audio device that can provide a surround system with excellent realism.
〈従来技術〉
再生時に臨場感を出すためにＬ−チヤンネルと
Ｒ−チヤンネルのフロントスピーカに加えて、い
くつかのスピーカを聴取者のまわりに配置し、該
新たに加えられた各スピーカにＬ−チヤンネル及
びＲ−チヤンネル信号線上に現われた音声信号を
一定時間毎に逐時所定量づつ減衰させて入力する
サラウンドシステムがある。<Prior art> In order to create a sense of presence during playback, in addition to the front speakers of the L-channel and R-channel, several speakers are placed around the listener, and each of the newly added speakers is connected to the L-channel. There is a surround system in which audio signals appearing on a channel and an R-channel signal line are attenuated by a predetermined amount at regular intervals and then input.
第３図はかかる従来のサラウンドシステムの一
部構成図である。尚、サフイツクスLRを有するユ
ニツトはＬ−チヤンネル及びＲ−チヤンネルそれ
ぞれに配設されている。このサラウンドシステム
においてはＬ−チヤンネル及びＲ−チヤンネル信
号線LCL，RCLに現われた音声信号L0，R0を干
渉防止回路１RLに入力し、その出力を遅延時間可
変の遅延回路２RLに入力する。遅延回路２RLの出
力信号L3，R3は減衰量可変の減衰帰環回路３RLで
出力レベルが所定量減衰されて遅延回路２RLに帰
還されるようになつている。従つて、音声信号
L0，R0が入力されると遅延回路２RLから第４図に
示すように遅延時間D3毎にその出力レベルが所
定量づつ減小する音声信号L3，R3が出力される。
そして、信号L0，R0，L3，R3はそれぞれ低周波
増幅器４ａ〜４ｄを介してスピーカ５ａ〜５ｄに
入力されて出力される。尚、スピーカ５ａはＬ−
チヤンネルフロントスピーカ、５ｂはＲ−チヤン
ネルフロントスピーカ、５ｃはＬ−チヤンネルの
音声信号L3が入力されるサラウンドスピーカ、
５ｄはＲ−チヤンネルの音声信号R3が入力され
るサラウンドスピーカである。 FIG. 3 is a partial configuration diagram of such a conventional surround system. Incidentally, a unit having a suffix LR is provided for each of the L-channel and R-channel. In this surround system, the audio signals L 0 and R 0 appearing on the L-channel and R-channel signal lines LCL and RCL are input to an interference prevention circuit 1 RL , and the output thereof is input to a delay circuit 2 RL with variable delay time. do. The output signals L 3 and R 3 of the delay circuit 2 RL are attenuated by a predetermined amount in the attenuation return circuit 3 RL , which has a variable attenuation amount, and are fed back to the delay circuit 2 RL . Therefore, the audio signal
When L 0 and R 0 are input, the delay circuit 2 RL outputs audio signals L 3 and R 3 whose output levels decrease by a predetermined amount every delay time D 3 as shown in FIG. 4.
The signals L 0 , R 0 , L 3 , and R 3 are input to and output from the speakers 5a to 5d via the low frequency amplifiers 4a to 4d, respectively. Note that the speaker 5a is L-
channel front speaker; 5b is an R-channel front speaker; 5c is a surround speaker into which the L-channel audio signal L3 is input;
5d is a surround speaker to which the R-channel audio signal R3 is input.
〈考案が解決しようとしている問題点〉
しかしながら、従来のサラウンドシステムにお
いて遅延回路２RLから出力される音声信号L3，R3
は実際のコンサートホールで聴いた時の１次反射
群と高次反射群とはならず、単に遅延時間D3毎
に所定量づつ減衰する遅延音声信号となるだけけ
である。このため、従来のサラウンドシステムで
は実際のコンサートホールのような臨場感を出す
ことができなかつた。<Problems to be solved by the invention> However, in the conventional surround system, the audio signals L 3 , R 3 output from the delay circuit 2 RL
does not become a first-order reflection group and a higher-order reflection group when heard in an actual concert hall, but simply becomes a delayed audio signal that attenuates by a predetermined amount every delay time D3 . For this reason, conventional surround systems have been unable to create a sense of presence similar to an actual concert hall.
以上から本考案の目的は、１次反射群と高次反
射群とを分離して生成し、これらを用いて臨場感
に秀れたサラウンドシステムを構築できるオーデ
イオ装置を提供することである。 In light of the above, an object of the present invention is to provide an audio device that can generate a primary reflection group and a high-order reflection group separately and use them to construct a surround system with excellent realism.
本考案の別の目的は様々なコンサートホールの
効果を容易に作り出すことができるオーデイオ装
置を提供することである。 Another object of the invention is to provide an audio device that can easily create various concert hall effects.
〈問題点を解決するための手段〉
第１図は本考案にかかるオーデイオ装置の要部
ブロツク図である。<Means for Solving the Problems> FIG. 1 is a block diagram of the main parts of an audio device according to the present invention.
１１RLは第１の遅延回路、１２RLは干渉防止回
路、１３RLは第２の遅延回路、１４RLは減衰帰環
回路、１５L，１５RはそれぞれＬ−チヤンネル及
びＲ−チヤンネルの音声信号L0，R0が入力され
るフロントスピーカ、１６L，１６Rはそれぞれ１
次反射群の音声信号L1，R1が入力されるフロン
トスピーカ、１７L，１７Rは高次反射群の音声信
号L2，R2が入力されるフロントスピーカである。 11 RL is the first delay circuit, 12 RL is the interference prevention circuit, 13 RL is the second delay circuit, 14 RL is the attenuation return circuit, 15 L and 15 R are the audio signals of the L-channel and R-channel, respectively. Front speakers to which L 0 and R 0 are input, 16 L and 16 R are each 1
Front speakers 17 L and 17 R are input with the audio signals L 1 and R 1 of the next reflection group, and front speakers 17 L and 17 R are input with the audio signals L 2 and R 2 of the higher reflection group.
〈作用〉
Ｌ−チヤンネルの信号ラインLCL及びＲ−チ
ヤンネルの信号ラインRCL上に現われた音声信
号L0，R0をそれぞれ第１の遅延回路１１RLに入力
して該第１の遅延回路から時間D1遅延した１次
反射の音声信号L1，R1を出力する。<Operation> The audio signals L 0 and R 0 appearing on the signal line LCL of the L-channel and the signal line RCL of the R-channel are respectively input to the first delay circuit 11 RL , and the time is output from the first delay circuit. Output D 1- delayed primary reflection audio signals L 1 and R 1 .
１次反射の音声信号L1，R1は所定のスピーカ
に入力されると共に、干渉防止回路１２RLを介し
て第２の遅延回路１３RLに入力され、該第２の遅
延回路１３RLはの１次反射の音声信号L1，R1をそ
れぞれ所定時間D2遅延して２次反射の音声信号
L2，R2を出力する。 The primary reflected audio signals L 1 and R 1 are input to predetermined speakers and are also input to the second delay circuit 13 RL via the interference prevention circuit 12 RL . The primary reflection audio signals L 1 and R 1 are each delayed by a predetermined time D 2 to produce the secondary reflection audio signal.
Outputs L 2 and R 2 .
第２の遅延回路の出力信号L2，R2はそれぞれ
減衰帰環回路１４RLで所定量減衰されて該第２の
遅延回路入力側に帰還される。 The output signals L 2 and R 2 of the second delay circuit are each attenuated by a predetermined amount by the attenuation return circuit 14 RL and fed back to the input side of the second delay circuit.
以後、第２の遅延回路１３RLから所定時間D2毎
に逐次所定量づつ減衰したＬ−チヤンネル及びＲ
−チヤンネルの３次、４次……の反射音声信号、
すなわち高次反射音声信号L2，R2が得られる。 Thereafter, the L-channel and R are sequentially attenuated by a predetermined amount every predetermined time period D2 from the second delay circuit 13 RL .
-Reflected audio signals of the 3rd and 4th order of the channel,
That is, high-order reflected audio signals L 2 and R 2 are obtained.
そして、音声信号L0，R0はそれぞれＬ−チヤ
ンネル及びフロントスピーカ１５L，１５Rに入力
され、第１の遅延回路１１RLから出力される１次
反射の音声信号L2，R2はサラウンドスピーカ１
６L，１６Rに入力され、第２の遅延回路１３RLか
ら出力される高次反射の音声信号L2，R2はそれ
ぞれサラウンドスピーカ１７L，１７Rに入力され
る。 The audio signals L 0 and R 0 are input to the L-channel and front speakers 15 L and 15 R , respectively, and the primary reflected audio signals L 2 and R 2 output from the first delay circuit 11 RL are used as surround sound signals. Speaker 1
The high-order reflected audio signals L 2 and R 2 inputted to 6 L and 16 R and outputted from the second delay circuit 13 RL are inputted to surround speakers 17 L and 17 R , respectively.
〈実施例〉
第１図は本考案にかかるオーデイオ装置の要部
ブロツク図である。尚、サフイツクスRLを有する
ユニツトはＬ−チヤンネル及びＲ−チヤンネルに
それぞれ全く同一に設けられており、サフイツク
スLを有するユニツトはＬ−チヤンネル用、サフ
イツクスRを有するユニツトはＲ−チヤンネル用
である。<Embodiment> FIG. 1 is a block diagram of the main parts of an audio device according to the present invention. The units having the suffix RL are provided identically for the L-channel and the R-channel, and the unit having the suffix L is for the L-channel, and the unit having the suffix R is for the R-channel.
１１RLはＬ−チヤンネル及びＲ−チヤンネルの
第１の遅延回路であり、遅延時間D1は可変であ
る。１２RLはゲイン１のバツフアアンプ等で構成
された干渉防止回路であり、図中Ａ矢印方向には
信号を通過させるが、Ｂ矢印方向には信号を通過
させない。１３RLはＬ−チヤンネル及びＲ−チヤ
ンネルの第２の遅延回路で遅延時間D2は可変で
ある。１４RLは減衰帰環回路であり、第２の遅延
回路１３RLから出力される信号L2，R2の減衰量を
変更できるようになつている。１５L，１５Rはそ
れぞれＬ−チヤンネル及びＲ−チヤンネルの音声
信号L0，R0が入力されるフロントスピーカ、１
６L，１６Rはそれぞれ１次反射の音声信号L1，R1
が入力されるサラウンドスピーカ、１７L，１７R
は高次反射群の音声信号L2，R2が入力されるサ
ラウンドスピーカである。１８L，１８R，１９L，
１９R，２０L，２０Rはそれぞれ低周波増幅器で
ある。 11 RL is a first delay circuit for the L-channel and R-channel, and the delay time D 1 is variable. 12 RL is an interference prevention circuit composed of a buffer amplifier with a gain of 1, etc., which allows signals to pass in the direction of arrow A in the figure, but does not allow signals to pass in the direction of arrow B. 13 RL is a second delay circuit for the L-channel and R-channel, and the delay time D 2 is variable. 14 RL is an attenuated return circuit, which can change the amount of attenuation of the signals L 2 and R 2 output from the second delay circuit 13 RL . 15 L and 15 R are front speakers to which the L-channel and R-channel audio signals L 0 and R 0 are respectively input;
6 L and 16 R are first-order reflected audio signals L 1 and R 1 , respectively.
surround speakers, 17 L , 17 R
are surround speakers to which the high-order reflection group audio signals L 2 and R 2 are input. 18 L , 18 R , 19 L ,
19 R , 20 L and 20 R are low frequency amplifiers, respectively.
つぎに第１図の動作を説明する。 Next, the operation shown in FIG. 1 will be explained.
Ｌ−チヤンネルの信号ラインLCL及びＲ−チ
ヤンネルの信号ラインRCL上に現われた音声信
号L0，R0はそれぞれ低周波増幅器１８L，１８Rを
介してフロントスピーカ１５L，１５Rに入力され
ると共に、第１の遅延回路１１RLに入力される。 Audio signals L 0 and R 0 appearing on the L-channel signal line LCL and the R-channel signal line RCL are input to front speakers 15 L and 15 R via low frequency amplifiers 18 L and 18 R , respectively. The signal is also input to the first delay circuit 11 RL .
第１の遅延回路１１RLは音声信号L0，R0を所定
量減衰させると共に時間D1遅延して１次反射の
音声信号L1，R1を出力する。 The first delay circuit 11 RL attenuates the audio signals L 0 and R 0 by a predetermined amount, and outputs primary reflected audio signals L 1 and R 1 after being delayed by a time D 1 .
１次反射の音声信号L1，R1は低周波増幅器１
９L，１９Rを介してサラウンドスピーカ１６L，
１６Rに入力されると共に、干渉防止回路１２RL
を介して第２の遅延回路１３RLに入力される。 The primary reflected audio signals L 1 and R 1 are transmitted to the low frequency amplifier 1.
Surround speakers 16L , 9L and 19R
16 R , and an interference prevention circuit 12 RL.
The signal is input to the second delay circuit 13 RL via.
第２の遅延回路の１３RLはこの１次反射の音声
信号L1，R1をそれぞれ所定時間D2遅延して２次
反射の音声信号L2，R2を出力する。 The second delay circuit 13RL delays the primary reflection audio signals L 1 and R 1 by a predetermined time D 2 and outputs the secondary reflection audio signals L 2 and R 2 .
第２の遅延回路１３RLの出力信号L2，R2はそれ
ぞれ低周波増幅器２０L，２０Rを介してサラウン
ドスピーカ１７R，１７Lに入力されると共に減衰
帰環回路１４RLに入力され、ここで所定量減衰さ
れて該第２の遅延回路の入力側に帰還される。 The output signals L 2 and R 2 of the second delay circuit 13 RL are input to the surround speakers 17 R and 17 L via the low frequency amplifiers 20 L and 20 R , respectively, and are also input to the attenuation feedback circuit 14 RL , Here, the signal is attenuated by a predetermined amount and fed back to the input side of the second delay circuit.
以後、第２の遅延回路１３RLから所定時間D2毎
に逐次所定量づつ減衰したＬ−チヤンネル及びＲ
−チヤンネルの音声信号、換言すれば高次反射群
の音声信号L2，R2が得られ、これら高次反射群
の音声信号L2，R2はサラウンドスピーカ１７L，
１７Rに入力される。 Thereafter, the L-channel and R are sequentially attenuated by a predetermined amount every predetermined time period D2 from the second delay circuit 13 RL .
- Channel audio signals, in other words, high-order reflection group audio signals L 2 , R 2 are obtained, and these high-order reflection group audio signals L 2 , R 2 are transmitted to the surround speakers 17 L ,
17 Input to R.
尚、第２図に各音声信号のレベルと発生時刻と
の関係を示す。 Incidentally, FIG. 2 shows the relationship between the level of each audio signal and the time of occurrence.
尚、以上はサラウンドスピーカを４つ設けた場
合であるが２つにしてそれぞれにL1＋L2，R1＋
R2を入力するようにしてもよい。 The above is a case where four surround speakers are installed, but if you use two surround speakers and each has L 1 + L 2 and R 1 +
Alternatively, R 2 may be input.
〈考案の効果〉
以上本考案によれば、１次反射群と高次反射群
の音声信号を分離生成して所定のサラウンドスピ
ーカに入力し、しかもとれぞれの遅延時間を別個
に調整するようにしたから、コンサートホールに
おけると同様の臨場感が得られ、しかも様々なコ
ンサートホールの効果を容易に作り出すことがで
きる。<Effects of the invention> According to the invention, the audio signals of the first-order reflection group and the higher-order reflection group are generated separately and inputted to a predetermined surround speaker, and the delay time of each is adjusted separately. Because of this, a sense of presence similar to that in a concert hall can be obtained, and various concert hall effects can be easily created.
第１図は本考案にかかるオーデイオ装置の要部
ブロツク図、第２図は各音声信号のレベルと発生
時刻の関係図、第３図は従来のオーデイオ装置の
ブロツク図、第４図は第３図における各音声信号
のレベルと発生時刻との関係図である。
１１RL……第１の遅延回路、１２RL……干渉防
止回路、１３RL……第２の遅延回路、１４RL……
減衰帰環回路、１５L，１５R……フロントスピー
カ、１６L，１６R，１７L，１７R……サラウンド
スピーカ。
Fig. 1 is a block diagram of the main parts of the audio device according to the present invention, Fig. 2 is a diagram showing the relationship between the level and generation time of each audio signal, Fig. 3 is a block diagram of a conventional audio device, and Fig. 4 is a block diagram of the conventional audio device. FIG. 3 is a relationship diagram between the level and generation time of each audio signal in the figure. 11 RL ...first delay circuit, 12 RL ...interference prevention circuit, 13 RL ...second delay circuit, 14 RL ...
Attenuation return circuit, 15 L , 15 R ...Front speakers, 16 L , 16 R , 17 L , 17 R ...Surround speakers.
Claims (1)
L0，R0をそれぞれ所定時間D1遅延する第１の遅
延回路と、 入力信号と出力信号の干渉を防止する干渉防止
回路と、 干渉防止回路を介して入力される前記第１の遅
延回路からの信号L1，R1をそれぞれ所定時間D2
遅延する第２の遅延回路と、 該第２の遅延回路の出力信号L2，R2をそれぞ
れ所定量減衰させて第２の遅延回路の入力側に帰
還させる減衰帰環回路を有し、 前記各信号L0，R0，L1，R1，L2，R2を所定の
スピーカに入力することを特徴とするオーデイオ
装置。[Claims for utility model registration] L-channel and R-channel audio signals
a first delay circuit that delays L 0 and R 0 by a predetermined time D 1 ; an interference prevention circuit that prevents interference between the input signal and the output signal; and the first delay circuit that is inputted via the interference prevention circuit. The signals L 1 and R 1 from
It has a second delay circuit that delays, and an attenuation return circuit that attenuates the output signals L 2 and R 2 of the second delay circuit by a predetermined amount and feeds them back to the input side of the second delay circuit, An audio device characterized in that each signal L 0 , R 0 , L 1 , R 1 , L 2 , R 2 is input to a predetermined speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15653885U JPH03800Y2 (en) | 1985-10-15 | 1985-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15653885U JPH03800Y2 (en) | 1985-10-15 | 1985-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266499U JPS6266499U (en) | 1987-04-24 |
| JPH03800Y2 true JPH03800Y2 (en) | 1991-01-11 |
Family
ID=31078246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15653885U Expired JPH03800Y2 (en) | 1985-10-15 | 1985-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03800Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5892043B2 (en) * | 2012-11-09 | 2016-03-23 | オンキヨー株式会社 | Audio processing device |
-
1985
- 1985-10-15 JP JP15653885U patent/JPH03800Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6266499U (en) | 1987-04-24 |
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