JPH087708Y2 - Voice switching amplifier - Google Patents

Voice switching amplifier

Info

Publication number
JPH087708Y2
JPH087708Y2 JP1987002885U JP288587U JPH087708Y2 JP H087708 Y2 JPH087708 Y2 JP H087708Y2 JP 1987002885 U JP1987002885 U JP 1987002885U JP 288587 U JP288587 U JP 288587U JP H087708 Y2 JPH087708 Y2 JP H087708Y2
Authority
JP
Japan
Prior art keywords
switching amplifier
switching
cut
voice
amplifier
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 - Lifetime
Application number
JP1987002885U
Other languages
Japanese (ja)
Other versions
JPS63113343U (en
Inventor
一彦 笠井
益雄 和田
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 Corp
Original Assignee
Toshiba 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 Corp filed Critical Toshiba Corp
Priority to JP1987002885U priority Critical patent/JPH087708Y2/en
Publication of JPS63113343U publication Critical patent/JPS63113343U/ja
Application granted granted Critical
Publication of JPH087708Y2 publication Critical patent/JPH087708Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 [考案の目的] (産業上の利用分野) この考案は、例えば放送局の音声送出切換器におい
て、送出素材を切換えるための音声切換増幅器に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an audio switching amplifier for switching a transmission material in an audio transmission switching device of a broadcasting station, for example.

(従来の技術) 従来の音声切換増幅器では、素材Aを素材Bに切換え
る場合、第5図に示すように、カットアウト、カットイ
ンの連続操作によって行なっている。しかし、このよう
な切換手段では、切換時の出力波形が不連続となるた
め、ノイズが発生する。
(Prior Art) In the conventional audio switching amplifier, when the material A is switched to the material B, as shown in FIG. 5, the cutout and the cutin are continuously performed. However, in such a switching means, since the output waveform at the time of switching becomes discontinuous, noise is generated.

(考案が解決しようとする問題点) 上記のように、従来の音声切換増幅器では素材の切換
をカットアウト、カットインのモードで行ないため、出
力波形が不連続となってノイズが発生する。
(Problems to be Solved by the Invention) As described above, in the conventional audio switching amplifier, the material is switched in the cut-out and cut-in modes, so that the output waveform becomes discontinuous and noise is generated.

この考案はこのような問題を解決するためになされた
もので、素材切換時の出力波形を連続させてノイズ発生
を防止することのできる音声切換増幅器を提供すること
を目的とする。
The present invention has been made to solve such a problem, and an object thereof is to provide an audio switching amplifier capable of preventing the occurrence of noise by making the output waveform continuous during material switching.

[考案の構成] (問題点を解決するための手段) すなわち、この考案に係る音声切換増幅器は、カット
アウト−カットイン時のゲイン制御に時間に対する傾斜
特性を持たせるようにしたことを特徴とするものであ
る。
[Configuration of Device] (Means for Solving Problems) That is, the voice switching amplifier according to the present invention is characterized in that gain control during cut-out-cut-in is provided with a slope characteristic with respect to time. To do.

[作用] 上記構成による音声切換増幅器では、出力中の音声素
材を時間的傾斜特性を持つカットアウトモードで極短時
間に減衰させ、次の音声素材を同じく時間的傾斜特性を
持つカットインモードで極短時間に増強させることで、
送出信号の波形を瞬時に連続させ、これによってカット
アウト−カットインによる音声切換時のノイズ発生を防
止する。
[Operation] In the audio switching amplifier having the above configuration, the audio material being output is attenuated in the cutout mode having the temporal inclination characteristic for an extremely short time, and the next audio material is also cut in the mode having the temporal inclination characteristic. By increasing it for an extremely short time,
The waveform of the signal to be transmitted is made instantaneously continuous, which prevents noise from occurring during voice switching due to cutout-cutin.

(実施例) 以下、第1図乃至第4図を参照してこの考案の一実施
例を説明する。
(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

第1図はこの考案が適用される音声切換増幅器の構成
を示すもので、音声入力はバッファアンプ11で増幅され
た後、スイッチ回路12の8個のスイッチS1〜S8により、
選択的にアッテネータ回路13の8段のラダー抵抗回路R1
〜R8へ導出される。各ラダー抵抗回路R1〜R8に入力され
た音声信号は加算され、帰還増幅器14、バッファアンプ
15を介して出力される。
FIG. 1 shows the configuration of a voice switching amplifier to which the present invention is applied. The voice input is amplified by a buffer amplifier 11 and then by eight switches S1 to S8 of a switch circuit 12,
8 stage ladder resistor circuit R1 of attenuator circuit 13 selectively
~ Derived to R8. The audio signals input to each ladder resistor circuit R1 to R8 are added, and feedback amplifier 14 and buffer amplifier
Output via 15.

上記スイッチ回路12の各スイッチS1〜S8はマイクロコ
ンピュータ等の制御器16からの8ビットのパラレルデー
タによってオン・オフ制御される。制御器16は図示しな
い操作スイッチによって指定されるモードに従って、順
次スイッチS1〜S8をオン・オフ制御し、音声入出力間の
ゲインを制御するものである。操作モードには、第2図
(a)〜(e)に示すカットアウト、カットイン、フェ
ードアウト、フェードイン、BGの他に同図(f),
(g)に示すように、それぞれ時間的傾斜特性を持つカ
ットアウト、カットインのモードを有する。
The switches S1 to S8 of the switch circuit 12 are on / off controlled by 8-bit parallel data from a controller 16 such as a microcomputer. The controller 16 sequentially controls ON / OFF of the switches S1 to S8 in accordance with a mode designated by an operation switch (not shown) to control a gain between voice input and output. In addition to the cutout, cut-in, fade-out, fade-in, and BG shown in FIGS. 2 (a) to (e), the operation modes include (f) in FIG.
As shown in (g), each has a cut-out mode and a cut-in mode having a temporal inclination characteristic.

すなわち、素材Aを素材Bに切換える場合、従来のよ
うにカットアウト、カットインの連続操作によって切換
えると、第3図(a)に示すように波形が不連続となっ
て、切換時点でノイズが発生する。しかし、第4図に示
すように、素材Aを時間的傾斜特性を持つカットアウト
で一旦減衰させ、続いて素材Bに切換えて時間的傾斜特
性を持つカットインで増強することにより、第3図
(b)に示すように波形が連続となる。
That is, when the material A is switched to the material B, if the cutout and the cutin are continuously switched as in the conventional case, the waveform becomes discontinuous as shown in FIG. appear. However, as shown in FIG. 4, the material A is once attenuated by the cutout having the temporal inclination characteristic, and then the material B is changed to the cut-in having the temporal inclination characteristic to enhance it. The waveform becomes continuous as shown in (b).

したがって、上記構成による音声切換増幅器は、出力
中の音声素材を時間的傾斜特性を持つカットアウトモー
ドで極短時間に減衰させ、次の音声素材を同じく時間的
傾斜特性を持つカットインモードで極短時間に増強させ
ることができるので、素材切換を高速で波形を連続して
実行することができ、これによってノイズの発生を防止
することができる。
Therefore, the audio switching amplifier with the above configuration attenuates the audio material being output in the cut-out mode having the temporal inclination characteristic in a very short time, and polarizes the next audio material in the cut-in mode having the temporal inclination characteristic. Since it can be enhanced in a short time, the material can be switched at a high speed and the waveform can be continuously executed, whereby the generation of noise can be prevented.

[考案の効果] 以上のようにこの考案によれば、素材切換時の出力波
形を連続させてノイズ発生を防止することのできる音声
切換増幅器を提供することができる。
[Advantage of the Invention] As described above, according to the present invention, it is possible to provide a voice switching amplifier capable of preventing the occurrence of noise by making the output waveform continuous at the time of material switching.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの考案に係る音声切換増幅器の一実施例を構
成を示す回路図、第2図は同実施例の有するフェードモ
ードを説明するための波形図、第3図及び第4図はそれ
ぞれ同実施例の素材切換手段を説明するための波形図、
第5図は従来装置の素材切換手段を説明するための波形
図である。 11…バッファアンプ、12…スイッチ回路、S1〜S8…スイ
ッチ、13…アッテネータ回路、R1〜R8…ラダー抵抗回
路、14…帰還増幅器、15…バッファアンプ、16…制御
器。
FIG. 1 is a circuit diagram showing the configuration of an embodiment of a voice switching amplifier according to the present invention, FIG. 2 is a waveform diagram for explaining a fade mode of the embodiment, and FIGS. 3 and 4 are respectively. Waveform diagram for explaining the material switching means of the same embodiment,
FIG. 5 is a waveform diagram for explaining the material switching means of the conventional device. 11 ... Buffer amplifier, 12 ... Switch circuit, S1-S8 ... Switch, 13 ... Attenuator circuit, R1-R8 ... Ladder resistance circuit, 14 ... Feedback amplifier, 15 ... Buffer amplifier, 16 ... Controller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】音声信号をカットアウト−カットインの連
続操作により他の音声信号に切り換える音声切換増幅器
において、前記カットアウト−カットイン時のゲイン制
御に時間に対する傾斜特性を持たせるようにしたことを
特徴とする音声切換増幅器。
1. A voice switching amplifier for switching a voice signal to another voice signal by continuous cutout-cutin operation, wherein gain control during the cutout-cutin is provided with a slope characteristic with respect to time. A voice switching amplifier characterized by.
JP1987002885U 1987-01-14 1987-01-14 Voice switching amplifier Expired - Lifetime JPH087708Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987002885U JPH087708Y2 (en) 1987-01-14 1987-01-14 Voice switching amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987002885U JPH087708Y2 (en) 1987-01-14 1987-01-14 Voice switching amplifier

Publications (2)

Publication Number Publication Date
JPS63113343U JPS63113343U (en) 1988-07-21
JPH087708Y2 true JPH087708Y2 (en) 1996-03-04

Family

ID=30782139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987002885U Expired - Lifetime JPH087708Y2 (en) 1987-01-14 1987-01-14 Voice switching amplifier

Country Status (1)

Country Link
JP (1) JPH087708Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016059776A (en) * 2014-09-17 2016-04-25 由美 小田 Cutter shirt wrinkle-smoothing hanger drying tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656018A (en) * 1979-10-12 1981-05-16 Hitachi Denshi Ltd Fade voltage generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016059776A (en) * 2014-09-17 2016-04-25 由美 小田 Cutter shirt wrinkle-smoothing hanger drying tool

Also Published As

Publication number Publication date
JPS63113343U (en) 1988-07-21

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