JPH0756540Y2 - TV broadcast audio switching control circuit - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an audio switching control circuit for television broadcasting, and particularly to a television using a so-called audio dubbing cinecoder for broadcasting foreign language such as movie film and Japanese audio. The present invention relates to a broadcast audio switching control circuit.

[Conventional technology]

Generally, when dubbing a foreign movie or the like into a Japanese sound by dubbing it in a television broadcasting station, it is necessary to broadcast the image by the film projector and the Japanese sound output from the cinecoder in synchronization. In this case, Fig. 2 (a)
As shown in the block diagram of FIG. 1, a movie film is projected on the film projector 11 to form an optical image m, and the television camera 12 produces a television image signal n. Further, the audio signal Q of the original language is also output and is output as a television audio signal. Further, as shown in the block diagram of FIG. 2B, for example, when it is desired to output the Japanese dubbing audio signal P as a television audio signal, the cinecoder 10 is used to output the dubbing audio signal P. This is used as a television audio signal. On the other hand, in the case of audio multiplex broadcasting using the main channel and the sub-channel such as conventional stereo broadcasting and bilingual broadcasting,
Three types of video and two audio signals are simultaneously broadcast so that the receiver selects one of the two audio signals. In this case, as a matter of course, the broadcasting station must switch three of one video and two audio signals at the same time. There is no problem in the case of operation by the automatic program control device adopted as a broadcasting automation system, but in the case of manual program creation, it is usually necessary for two people to switch these three signals at the same time, which is applicable from many materials. Selecting and manipulating things requires considerable skill. Therefore, in order to facilitate the operation and save the labor, the main channel and the sub-channel are always interlocked with each other so that the material selection operation button of the audio is reduced to half and the size is reduced, and the operability has been conventionally improved.

[Problems to be solved by the device]

The above-described conventional audio main / sub channel interlocking switch and one control circuit have no problem when the three signals of the main channel and the sub channel of video and audio are output together. But,
As a special example, when a foreign language movie for theater is to be broadcast in two languages by dubbing the original language and Japanese, there is a drawback that the conventional simple interlocking switching cannot be used to create these programs.

An object of the present invention is to provide a voice switching control circuit capable of supporting the special interlocking switching as described above.

[Means for Solving the Problems]

The TV broadcast audio switching control circuit according to the present invention is a TV broadcasting audio switching control circuit provided with a main / sub channel switching unit provided in an audio multiplex broadcasting apparatus for bilingual broadcasting of TV broadcasting. A precondition setting control unit that sets the switching condition of the operation condition using an operation button, a precondition holding unit that temporarily stores the setting contents of the precondition setting control unit, and a material that selects and instructs a plurality of preset audio materials. A selection control unit, a film projector reproduction start control unit for instructing reproduction start of video and audio of a movie film which is one of the materials, contents held in the case condition holding unit and selections output from the material selection control unit The switching control condition collating unit that collates the contents of the selected material, and the main / sub channel switching unit by the signal output when the conditions are matched in the switching control condition collating unit. First means changing reproduction start instruction signal of the film projector reproduction start control unit and, in the case of the content signal and to be interlocked by matching retention contents set by the operation buttons of the preconditions holding unit,
A second means for controlling the cinecoder section and the film projector section by the output signal to output the dubbing audio material and the video material is provided.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In the embodiment shown in FIG. 1, a precondition control unit 1 for controlling information for setting a program condition of a television broadcast by an operation button or the like, and a precondition holding unit including a so-called latch circuit for temporarily storing control information by the operation button. 2, the above-mentioned precondition control unit 1
In the material selection control unit 3, which specifies the material selection as to whether to send the material preset in or to send other material, on the other hand, start the reproduction of the film projector for extracting the image from the movie film and the cinecoder for extracting the dubbed sound. Projector / Cinecoder playback start control unit 4, Precondition holding unit 2 and material selection control unit 3 Switching control condition collating unit 5 for switching audio interlocking switching material, Precondition holding unit 2 and projector / Cinecoder playback start An interlocking condition collating unit 6 that interlocks the reproduction of the film projector and the cinecoder by inputting a signal from the control unit 4, a film projector unit 8 that operates under the control of the interlocking condition collating unit, a cinecoder unit 9, and finally a main / sub channel. Voice control operation by the main / sub channel switching unit 7 for switching to the voice signal from the cinecoder unit 7. It is.

Next, the operation of this embodiment will be described. The button of the pre-condition setting control unit 1 is a switch for pre-setting the cine-link condition and also a switch for replacing the interlocking switching material of voice, and this control information is stored in the holding unit 6.
Held by. The switching control condition matching unit 5 outputs control information for replacing the interlocking switching material of the main channel and the sub channel audio to the audio switching element (cross point) which is the main / sub channel switching unit 7 when a certain condition is matched. However, the audio signal itself is switched or replaced.
Further, the button of the material selection control unit 3 is a manual material selection switch for interlocking the switching of each material of the main channel and the sub channel of the broadcast program. That is, the above-mentioned voice switching element (cross point) that switches the voice signal itself
Is the traffic control performed by the switching control condition collating unit 5 on the output of the precondition holding unit 2 for switching the interlocking switching material of the voice and the switching control information of the material selection control unit 3 by matching a certain condition. It receives and moves. On the other hand, the cinelink operation is performed as follows. The film projector unit 8 is controlled by the button of the cine / projector reproduction start control unit 4 to start reproduction. At the same time, when the output of the precondition setting control holding unit 2 and the film projector reproduction starting unit 4 for preliminarily giving the condition of the cinelink by the interlocking condition collating unit 6 of the cinecoder, the interlocked reproduction is started in the cinecoder unit 9. Take control. When the switch of the precondition setting control unit 1 is off, there is no collation match, so that the cinecoder unit does not interlock and only the reproduction of the film projector is performed.

[Effect of device]

As described above, by adopting the configuration of the present invention, it is possible to cope with program making such as voice dubbing of a movie when the main channel and the sub channel of the voice are not normally linked.
Further, it is effective in labor saving in making a complicated program.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention. 2A and 2B are block diagrams for extracting video and audio signals from a general movie film signal. 1 ... Precondition setting unit, 2 ... Precondition holding unit, 3 ... Material selection control unit, 4 ... Film projector playback start control unit,
5 ... Switching control condition matching unit, 6 ... Interlocking condition matching unit, 7 ... Main / sub channel switching unit, 8 ... Film projector unit,
9 ... Cinecoder department.

Claims (1)

[Scope of utility model registration request] 1. A television broadcast audio switching control circuit having a main / sub-channel switching unit provided in a multi-language audio broadcasting system for TV broadcasting such as bilingual broadcasting. Operation buttons for switching a plurality of audio materials. Etc., a precondition setting control unit, a precondition holding unit that temporarily stores the setting contents of the precondition setting control unit, a material selection control unit that instructs to select a plurality of preset audio materials, and a material A film projector reproduction start control unit for instructing reproduction start of video and audio of a movie film, which is one of the following, content stored in the case condition storage unit, and content of the selected material output from the material selection control unit. A switching control condition collating unit for collating, and a first means for switching the main / sub channel switching unit by a signal output when a condition is matched in the switching control condition collating unit, When the reproduction start instruction signal of the film projector reproduction start control unit and the contents of the held contents set by the operation buttons of the precondition holding unit are collated and interlocked,
An audio switching control circuit for television broadcasting, comprising: a second means for controlling a cinecoder section and a film projector section by an output signal to output a dubbed audio material and a video material.