JPS62207U - - Google Patents

Description

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

第１図は本考案の１実施例のブロツク図、第２
図は従来例のブロツク図である。 １ａ，１ｂ……回転ヘツド、７ａ，７ｂ……固
定ヘツド、９……ＡＭ検波器、１１……スイツチ
ング回路、１４……ノーマル音声検出器。 Figure 1 is a block diagram of one embodiment of the present invention;
The figure is a block diagram of a conventional example. 1a, 1b...Rotating head, 7a, 7b...Fixed head, 9...AM detector, 11...Switching circuit, 14...Normal audio detector.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転ヘツドによりハイフアイ音声が記録、再生
され、且つ固定ヘツドによりノーマル音声が記録
、再生されるハイフアイ方式ＶＴＲにおいて、前
記回転ヘツドにより再生されるハイフアイ音声の
有無を検知するハイフアイ音声検知手段と、前記
固定ヘツドにより再生されるノーマル音声の有無
を検知するノーマル音声検知手段と、前記ハイフ
アイ音声検知手段及びノーマル音声検知手段の各
検知出力に基いてそれぞれハイフアイモード、ノ
ーマルモードに切換えるとともに両検知出力がな
くなつたときミユーテイングモードに切換えるス
イツチング手段とを具備してなる音声再生装置。 In a high-frequency VTR in which a rotating head records and reproduces high-frequency sound and a fixed head records and reproduces normal sound, a high-frequency sound detecting means for detecting the presence or absence of high-frequency sound reproduced by the rotary head; The normal sound detection means detects the presence or absence of normal sound played by the head, and the high-speed sound detection means and the normal sound detection means switch to high-speed mode and normal mode, respectively, based on the detection outputs of the high-speed sound detection means and normal sound detection means, and both detection outputs are switched off. An audio reproduction device comprising switching means for switching to a muting mode when tired.