JPH04138726A - Mixing device - Google Patents

Mixing device

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Publication number
JPH04138726A
JPH04138726A JP26101690A JP26101690A JPH04138726A JP H04138726 A JPH04138726 A JP H04138726A JP 26101690 A JP26101690 A JP 26101690A JP 26101690 A JP26101690 A JP 26101690A JP H04138726 A JPH04138726 A JP H04138726A
Authority
JP
Japan
Prior art keywords
section
input
microphone
mixing
switch
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
JP26101690A
Other languages
Japanese (ja)
Inventor
Yutaka Saito
裕 斎藤
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.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology 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 Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Priority to JP26101690A priority Critical patent/JPH04138726A/en
Publication of JPH04138726A publication Critical patent/JPH04138726A/en
Pending legal-status Critical Current

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  • Transmitters (AREA)

Abstract

PURPOSE:To surely decrease a sound volume of a background music even when a small voice is inputted to a microphone by providing a level control section between a background broadcast input section and a mixing section to decrease an electric signal from the background broadcast input section to a prescribed level while a switch input detection section detects the operation of a switch. CONSTITUTION:A level control section 6 is provided between a background broadcast input section 2 and a mixing section 3 and decreases an electric signal from the background broadcast input section 20 to a prescribed level and inputs the decreased level to the mixing section while the switch input detection section 5 detects the operation of a switch 5. Thus, even when a sound picked up by a microphone is very low, the sound volume level of the background broadcast is always constant and it causes no unpleasant sense to a listener.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、構内放送設備などに用いられるミキシング装
置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a mixing device used in a public address system or the like.

(従来の技術) 従来のこの種の装置としては、例えばマイク入力部と、
背景放送入力部と、上記マイク入力部およびバックグラ
ンドミュージックなどの背景放送入力部からの電気信号
を合成するミキシング部とを持ったものがあり、マイク
からの電気信号出力状態を検出する検出部を設け、電気
信号検出検出中は背景放送入力部からの電気信号を所定
レベルに下げて上記ミキシング部に入力するものであっ
た。
(Prior Art) Conventional devices of this type include, for example, a microphone input section,
Some devices have a background broadcast input section, a mixing section that combines electrical signals from the background broadcast input section such as the microphone input section and background music, and a detection section that detects the state of the electrical signal output from the microphone. During electrical signal detection, the electrical signal from the background broadcast input section is lowered to a predetermined level and input to the mixing section.

この従来の装置によるとマイクからの音声入力がないと
きすなわちアナウンサーがマイクに対して話している途
中で、台本を読むために話しを時々中断すると、その度
にバックグランドミュージックの音量が急に上がってし
まい、放送を聞く人にとってはとても耳障りとなる不具
合が生じる。
According to this conventional device, when there is no audio input from the microphone, that is, when the announcer is speaking into the microphone and occasionally interrupts speaking to read the script, the volume of the background music suddenly increases. This results in a problem that is very jarring to those listening to the broadcast.

また、マイクに対して話す声が小さいとマイクからの電
気信号出力状態を検出する検出部が動作せずその結果、
バックグランドミュージックの音量が下がらないという
問題も生じる。
Additionally, if the voice speaking into the microphone is low, the detection unit that detects the electrical signal output state from the microphone will not operate, and as a result,
There is also the problem that the volume of background music cannot be lowered.

(発明が解決しようとする課題) 本発明は上記問題点を除去し、放送を聞く人にとって耳
障りとなることがなく、マイクに対して話す声が小さ(
でも、バックグランドミュージックの音量を確実に下げ
ることのできるミキシング装置を提供することを目的と
する。
(Problems to be Solved by the Invention) The present invention eliminates the above-mentioned problems, eliminates the harshness of hearing for those listening to the broadcast, and allows the voice spoken into the microphone to be small (
However, the purpose of the present invention is to provide a mixing device that can reliably lower the volume of background music.

[発明の構成] (課題を解決するための構成) 請求項1の発明のミキシング装置は、マイク入力部と、
背景放送入力部と、上記マイク入力部およびバックグラ
ンドミュージックなどの背景放送入力部からの電気信号
を合成するミキシング部とを持ち、マイク入力部とミキ
シング部との間に設けられマイクからの音声入力可能状
態を検出するスイッチ入力検出部と、背景放送入力部と
ミキシング部との間に設けられ上記スイッチ入力検出部
の動作に応じて上記スイッチ入力検出部の検出中上記背
景放送入力部からの電気信号を所定レベルに下げて上記
ミキシング部に入力するレベルコントロール部とを具備
したことを特徴とする請求項2の発明のミキシング装置
は、請求項1の発明に加え、マイク入力部は複数個有り
、上記各マイク入力部とミキシング部との間に共通に設
けられ少なくとも1つのマイクからの音声入力可能状態
を検出するスイッチ入力検出部を具備したことを特徴と
する。
[Structure of the invention] (Structure for solving the problem) The mixing device of the invention of claim 1 includes a microphone input section,
It has a background broadcast input section and a mixing section that synthesizes electrical signals from the microphone input section and the background broadcast input section such as background music, and is provided between the microphone input section and the mixing section to receive audio input from the microphone. A switch input detection section is provided between a switch input detection section that detects a possible state, a background broadcast input section, and a mixing section, and is configured to detect electricity from the background broadcast input section during detection by the switch input detection section according to the operation of the switch input detection section. In addition to the invention of claim 1, the mixing device further comprises a level control section that lowers the signal to a predetermined level and inputs the signal to the mixing section. The present invention is characterized in that it includes a switch input detection section that is commonly provided between each of the microphone input sections and the mixing section and detects a state in which audio input from at least one microphone is possible.

を具備したことを特徴とするものである。It is characterized by having the following.

上記スイッチ入力検出部としては、マイクに付属のオン
、オフ スイッチを操作する度にミキシング部に出力さ
れる信号を検出してレベルコントロール部を制御する手
段のほか、ミキシング装置にマイク、ミキシング部間を
人切りして音声入力可能状態にするスイッチを設けこの
スイッチの動作に応じてレベルコントロール部を制御す
る手段でもよい。さらには、スイッチ入力検出部自体が
マイク、ミキシング部間を人切りするスイッチであって
もよい。
The switch input detection section described above can be used to detect the signal output to the mixing section each time the on/off switch attached to the microphone is operated, and to control the level control section. It is also possible to provide a switch that turns off the input signal to enable voice input, and to control the level control section in accordance with the operation of this switch. Furthermore, the switch input detection section itself may be a switch for switching between the microphone and the mixing section.

(作用) 本発明のミキシング装置の作用をその仕様状態の一例に
もとずき説明する。
(Function) The function of the mixing device of the present invention will be explained based on an example of its specification state.

(請求項1)まず、背景放送入力部から電気信号がミキ
シング部に入力され、ミキシング部は出力部を通じてス
ピーカ側に電気信号と出力する。
(Claim 1) First, an electrical signal is input from the background broadcast input section to the mixing section, and the mixing section outputs the electrical signal to the speaker side through the output section.

次ぎに、たとえばマイクに付属のオン、オフスイッチを
オン側に操作したり、あるいはミキシング装置に設けら
れたマイク、ミキシング部間を人切りするスイッチを入
側に操作すると、上記スイッチ入力検出部が状態を検知
してレベルコントロール部を付勢する。レベルコントロ
ール部はこのとき上記スイッチ入力検出部の検出中上記
背景放送入力部からの電気信号を所定レベルに下げて上
記ミキシング部に入力する。ミキシング部は、上記マイ
ク入力部および背景放送入力部からの電気信号を合成す
るとともに出力部を通じてスピーカ側に電気信号と出力
する。
Next, for example, when the on/off switch attached to the microphone is operated to the on side, or when the switch for switching between the microphone and mixing section on the mixing device is operated to the on side, the switch input detection section is activated. Detects the condition and energizes the level control section. At this time, the level control section lowers the electrical signal from the background broadcast input section to a predetermined level during detection by the switch input detection section and inputs it to the mixing section. The mixing section combines the electrical signals from the microphone input section and the background broadcast input section, and outputs the electrical signals to the speaker side through the output section.

(請求項2)基本的な作用は、請求項1と同じであるが
、これに加え、上記共通のスイッチ入力検出部は、各マ
イク入力部のうちたとえば少なくとも1つのマイクの付
属オン、オフ スイッチをオン側に操作した場合でもレ
ベルコントロール部を付勢する。
(Claim 2) The basic operation is the same as that in Claim 1, but in addition to this, the common switch input detection section includes an attached on/off switch of, for example, at least one microphone among each microphone input section. The level control unit is energized even when the switch is turned on.

(実施例) 第1図は本発明に係るミキシング装置の一実施例を示す
概略図である。
(Embodiment) FIG. 1 is a schematic diagram showing an embodiment of a mixing device according to the present invention.

図において9は、ミキシング装置本体であり、1はオン
、オフ スイッチ付属マイク、10は、マイク入力部と
しての端子、2はたとえば有線放送端末機等背景放送出
力部、20は放送入力部都市手の端子、3はミキシング
部、4はスピーカ、40は、出力部としての端子、5は
マイクエとミキシング部3との接続を入りきりするスイ
ッチ55を有し、制御信号を後述するレベルコントロー
ル部に出力するスイッチ入力検出部、6は、背景放送出
力部2とミキシング部3との間に設けられ上記スイッチ
55の動作に応じて上記スイッチ入力検出部5の検出中
上記背景放送入力部20からの電気信号を所定レベルに
下げて上記ミキシング部に入力するレベルコントロール
部、60は、上記レベルを設定するボリューム、7は、
アンプである。上記端子10、スイッチ55は、それぞ
れ複数個有るが、その他の端子20.40、あるいは有
りいは、スイッチ入力検出部5、ボリューム60が複数
個有っても良いものである。
In the figure, 9 is the main body of the mixing device, 1 is a microphone with an on/off switch, 10 is a terminal as a microphone input section, 2 is a background broadcast output section such as a cable broadcast terminal, and 20 is a broadcast input section. 3 is a mixing section, 4 is a speaker, 40 is a terminal as an output section, 5 is a switch 55 for connecting the microphone and the mixing section 3, and a control signal is sent to a level control section to be described later. A switch input detection section 6 for outputting is provided between the background broadcast output section 2 and the mixing section 3 and detects the output from the background broadcast input section 20 during detection by the switch input detection section 5 according to the operation of the switch 55. a level control unit that lowers the electrical signal to a predetermined level and inputs it to the mixing unit; 60 is a volume that sets the level; 7 is a
It's an amplifier. Although there are a plurality of each of the terminals 10 and switches 55, there may be a plurality of other terminals 20, 40, or a plurality of switch input detection sections 5 and volumetric volume 60.

本実施例の説明をする。This example will be explained.

第2図のaは、スイッチ入力検出部の検知状態を示すも
ので、図中Tの区間ではスイッチ55のいずれかが入り
にされている状態を示す。すなわちこの状態では、マイ
クからの音声入力可能状態といえる。図中す、cはそれ
ぞれ背景放送、マイク放送のスピーカからの音量を示す
。図から明らかなように、Tの区間ではマイク音量が極
めて低いときであっても背景放送の音量レベルは、常に
一定であり、聞く人にとって耳障りとなることがないこ
とがわかる。
A in FIG. 2 shows the detection state of the switch input detection section, and in the section T in the figure, one of the switches 55 is turned on. That is, in this state, it can be said that voice input from the microphone is possible. In the figure, s and c indicate the volume from the speakers of background broadcasting and microphone broadcasting, respectively. As is clear from the figure, even when the microphone volume is extremely low in the section T, the volume level of the background broadcast is always constant and does not cause any harshness to the listener.

[発明の効果] 本発明の請求項1のミキシング装置によれば、マイク入
力部とミキシング部との間に設けられマイクからの音声
入力可能状態を検出するスイッチ入力検出部と、背景放
送入力部とミキシング部との間に設けられ上記スイッチ
入力検出部の動作に応じて上記スイッチ入力検出部の検
出中上記背景放送入力部からの電気信号を所定レベルに
下げて上記ミキシング部に入力するレベルコントロール
部とを具備したので、放送を聞く人にとって耳障りとな
ることがなく、マイクに対して話す声が小さくても、バ
ックグランドミュージックの音量を確実に下げることが
できる。さらに請求項2のミキシング装置によれば、請
求項1と同じ効果に加え、上記共通のスイッチ入力検出
部は、各マイク入力部のうちたとえば少なくとも1つの
マイクの付属オン、オフ スイッチをオン側に操作した
場合でもレベルコントロール部を付勢するので。複数の
マイク入力に対して回路の共通化が図ることができ、結
果として低コスト化が望まれる。
[Effects of the Invention] According to the mixing device according to claim 1 of the present invention, there is provided a switch input detection section that is provided between the microphone input section and the mixing section and detects a state in which audio input from the microphone is possible, and a background broadcast input section. and the mixing section, the level control lowers the electric signal from the background broadcasting input section to a predetermined level and inputs it to the mixing section during the detection of the switch input detection section according to the operation of the switch input detection section. Since the broadcasting device is equipped with a section, the volume of the background music can be reliably lowered even if the voice speaking into the microphone is low, so that it will not be jarring to the ears of those listening to the broadcast. Further, according to the mixing device of claim 2, in addition to the same effects as in claim 1, the common switch input detection section is configured to turn on/off the attached switch of at least one microphone among each microphone input section to the on side. The level control section is energized even if it is operated. It is possible to use a common circuit for a plurality of microphone inputs, and as a result, it is desired to reduce costs.

【図面の簡単な説明】 第1図は、本発明の一実施例の全体ブロック図をを示し
、第2図は、同上のスピーカから流れる音声を示すタイ
ミングチャートを示す図である。 10・・・マイク入力部、20・・・背景放送入力部、
5・・・スイッチ入力検出部、6・・・レベルコントロ
ール部、40・・・出力部。 特許出願人    東芝ライチック株式会社代理人  
 弁理士   小野田芳弘 第2」
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an overall block diagram of an embodiment of the present invention, and FIG. 2 is a timing chart showing audio flowing from the same speaker. 10... Microphone input section, 20... Background broadcast input section,
5... Switch input detection section, 6... Level control section, 40... Output section. Patent applicant: Toshiba Lightic Co., Ltd. Agent
Patent Attorney Yoshihiro Onoda 2nd

Claims (2)

【特許請求の範囲】[Claims] (1)マイク入力部と; 背景放送入力部と; 上記マイク入力部および背景放送入力部からの電気信号
を合成するミキシング部と; 上記ミキシング部の合成電気信号をスピーカ側に出力す
る出力部と; マイク入力部とミキシング部との間に設けられマイクか
らの音声入力可能状態を検出するスイッチ入力検出部と
; 背景放送入力部とミキシング部との間に設けられ上記ス
イッチ入力検出部の動作に応じて上記スイッチ入力検出
部の検出中上記背景放送入力部からの電気信号を所定レ
ベルに下げて上記ミキシング部に入力するレベルコント
ロール部と; を具備したことを特徴とするミキシング装置。
(1) A microphone input section; A background broadcast input section; A mixing section that combines electrical signals from the microphone input section and the background broadcast input section; An output section that outputs the combined electrical signal of the mixing section to the speaker side; ; a switch input detection unit provided between the microphone input unit and the mixing unit to detect a state in which audio input from the microphone is possible; and a switch input detection unit provided between the background broadcast input unit and the mixing unit to detect the operation of the switch input detection unit. A mixing device comprising: a level control section that lowers an electrical signal from the background broadcast input section to a predetermined level and inputs it to the mixing section during detection by the switch input detection section;
(2)上記マイク入力部は複数個有り、上記各マイク入
力部とミキシング部との間に共通に設けられ少なくとも
1つのマイクからの音声入力可能状態を検出するスイッ
チ入力検出部を具備したことを特徴とする特許請求の範
囲(1)記載のミキシング装置。
(2) There are a plurality of the microphone input sections, and a switch input detection section is provided in common between each of the microphone input sections and the mixing section to detect a state in which audio input from at least one microphone is possible. A mixing device according to claim (1) characterized in that:
JP26101690A 1990-09-29 1990-09-29 Mixing device Pending JPH04138726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26101690A JPH04138726A (en) 1990-09-29 1990-09-29 Mixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26101690A JPH04138726A (en) 1990-09-29 1990-09-29 Mixing device

Publications (1)

Publication Number Publication Date
JPH04138726A true JPH04138726A (en) 1992-05-13

Family

ID=17355885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26101690A Pending JPH04138726A (en) 1990-09-29 1990-09-29 Mixing device

Country Status (1)

Country Link
JP (1) JPH04138726A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078108A1 (en) * 2005-01-18 2006-07-27 Moon-Jong Seo System and method for synthesizing music and voice, and service system and method thereof
JP2011098070A (en) * 2009-11-06 2011-05-19 Asahi Keisoku:Kk Background music device for medical instrument apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078108A1 (en) * 2005-01-18 2006-07-27 Moon-Jong Seo System and method for synthesizing music and voice, and service system and method thereof
KR100819740B1 (en) * 2005-01-18 2008-04-07 서문종 System and method for synthesizing music and voice, and service system and method thereof
JP2011098070A (en) * 2009-11-06 2011-05-19 Asahi Keisoku:Kk Background music device for medical instrument apparatus

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