JPH05347015A - Video tape recorder - Google Patents

Abstract

PURPOSE:To optionally select a sound (main sound or subsound) to be recorded with a fixed head at the time of dual broadcasting. CONSTITUTION:This tape recorder is provided with a sound selecting part 16 for selecting a sound to be recorded by sound rotary heads 11 and 12 and a sound changeover circuit 15 for changing over to a sound to be recorded by the fixed head 13 in accordance with a command from the sound selecting part 16. By this constitution, a sound to be recorded by the sound fixed head 13 can be freely selected at the time of dual broadcasting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video tape recorder for recording / reproducing polyphonic broadcasting.

[0002]

2. Description of the Related Art In recent years, video tape recorders are compatible with sound polyphony by recording and reproducing audio signals with a rotary head.
The determined audio signal is automatically recorded.

A conventional video tape recorder will be described below. FIG. 2 is a block diagram of a conventional video tape recorder. In FIG. 2, 1 is a head cylinder equipped with a rotary head for recording / reproducing video / multiplex audio signals on a magnetic tape, 2 and 3 are video rotary heads,
4 and 5 are audio rotary heads, and images are alternately displayed on the magnetic tape.
Record voice or play from magnetic tape. 6
Is an audio fixed head, and 7 images are displayed on the conventional audio track.
Record / playback the audio determined by the audio recording / playback circuit.

[0004]

However, in the above-mentioned conventional configuration, since the sound to be recorded by the sound fixed head cannot be changed, there is a problem that the sub sound cannot be recorded by the sound fixed head in the case of dual broadcasting. I had.

An object of the present invention is to solve the above-mentioned conventional problems, and an object thereof is to provide a video tape recorder capable of arbitrarily selecting a sound to be recorded by a fixed head during dual broadcasting.

[0006]

In order to achieve this object, a video tape recorder according to the present invention comprises an audio selecting section for selecting an audio to be recorded on an audio track by an audio fixed head,
It has a voice switching circuit for switching the voice to be recorded by the voice fixed head in response to a command from the voice selector.

[0007]

With this configuration, it is possible to arbitrarily select the audio to be recorded by the audio fixed head, and it is possible to record the sub audio with the fixed head during the dual broadcasting.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 8 is a head cylinder equipped with a rotary head, 9 and 10 are image rotary heads, 11 and
Reference numeral 12 is an audio rotary head, 13 is a fixed head, 14 is a video / audio recording / reproducing circuit, 15 is an audio switching circuit, and 16 is an audio selecting unit.

The operation of the video tape recorder configured as described above will be described. When recording a dual broadcast, video signals are alternately recorded on the magnetic tape by the video rotary heads 9 and 10, and double audio is recorded on the magnetic tape alternately by the audio rotary heads 11 and 12. In the voice fixing head 13, the voice selected by the voice switching circuit 15 is recorded on the voice track of the magnetic tape in response to a command from the voice selecting unit 16. When playing a dual broadcast recorded as described above,
The voice recorded by the voice rotary heads 11 and 12 or the voice recorded by the fixed head 13 can be freely selected and heard.

As described above, according to the present embodiment, the voice selection unit 16 for selecting the voice to be recorded by the voice rotary heads 11 and 12, and the fixed head 1 according to the command from the voice selection unit 16.
By providing the audio switching circuit 15 for switching the audio to be recorded at 3, it is possible to freely select the audio to be recorded at the audio fixed head 13 in the case of dual broadcasting.

[0012]

As described above, according to the present invention, by providing means for arbitrarily selecting the sound to be recorded by the sound fixing head, it becomes possible to record the sub sound by the sound fixing head in the case of dual broadcasting. When the magnetic tape recorded by the video tape recorder of the present invention is reproduced by a video tape recorder which does not support multi-tone broadcasting, the sub audio can be reproduced, and at the time of variable speed reproduction, the sub audio is reproduced by the pitch control circuit. It is possible to realize an excellent video tape recorder that can be heard at a normal pitch.

[Brief description of drawings]

FIG. 1 is a block diagram of a video tape recorder according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional video tape recorder.

[Explanation of symbols]

 11 voice head 12 voice head 13 fixed head 15 voice switching circuit 16 voice selector

Claims (1)

[Claims] 1. A rotary head mounted on a head cylinder for recording / reproducing an audio signal multiplexed with a video signal on a magnetic tape, a fixed head for recording / reproducing an audio signal on an audio track of a magnetic tape, and the fixed head. 2. A video tape recorder, comprising: a voice selection unit for selecting a voice to be recorded on a voice track, and a voice switching circuit for switching a voice to be recorded by the fixed head according to a command from the voice selection unit.