JPH0340676A - Control code input device for variable sound field device - Google Patents

Abstract

PURPOSE:To reproduce a sound field synchronously with a video image repetitively by providing an input means inputting a control code controlling a variable sound field device and a recording means recording continuously the control code to a monaural signal recording part of a VTR. CONSTITUTION:A listener selects a desired sound field while observing a video image on a monitor 12 and inputs a control code corresponding to the sound field to an input means 2. The control code is continuously recorded onto a part with a monaural signal recorded thereon in a VTR 1 with a recording means 3 till a succeeding different code is inputted and also inputted to a variable sound field device 6 and the sound field corresponding to the control code is actually reproduced. When the VTR 1 is again reproduced, the recorded control code is reproduced by a reproduction means 4 and outputted to the variable sound field device 6 with an output means 5. Thus, the sound field synchronously with the video image is repetitively reproduced without input of the control code by the input means 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a sound field variable device that can repeatedly record and reproduce any sound field synchronized with the video of a video tape recorder (hereinafter referred to as VTR). This is a control code input device.

Conventional technology In recent years, CD, DAT, and S
-VHS, high-definition, etc. are becoming increasingly popular. Furthermore, in recent years, there has been an increasing need for new AV system devices that combine video and sound.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a conventional control code input device for a sound field variable device capable of generating an arbitrary sound field will be described below with reference to the drawings.

FIG. 2 shows the configuration of a control code input device for a conventional sound field variable device.

In FIG. 2, 7 is an input means for inputting an audio signal (in this case, it is a VTR), 8 is an input means for inputting a control code for controlling the sound field variable device, and 9 is the sound field variable device. be.

The operation of the conventional control code input device for the sound field variable device configured as described above will be described below.

The audio/visual signal input by the input means 7 is input to the sound field variable device 9.

At the same time, the listener watches the video and selects a sound field that suits the scene (for example, if the video shows the inside of a large building, the sound field should be a hall where an orchestra will perform). Then, a control code corresponding to the sound field is inputted using the input means 8. The input control code is input to the sound field variable device 9, and a sound field corresponding to the control code is reproduced. With this configuration, it was possible to reproduce a sound field synchronized with the video.

Problems to be Solved by the Invention However, with the configuration method described above, a sound field that matches the video can only be played once, and if the same video (scene) is to be played again, the same operation as the previous one must be performed. It needed to be done.

In view of the above problems, the present invention provides a control code input device for a sound field variable device that is capable of repeatedly reproducing a sound field synchronized with a video of a VTR.

Means for Solving the Problem In order to solve this problem, a control code input device for a sound field variable device according to the present invention is configured as follows.

an input means for inputting a control code for controlling the sound field variable device; and a part for recording a monaural signal of a video tape recorder capable of recording and reproducing stereo and monaural acoustic signals and image signals. recording means for continuously recording the same code as one control code until the next different control code is input; a reproducing means for reproducing the recorded control code; and a reproducing means for reproducing the recorded control code; and output means for outputting the code to the sound field variable device.

By providing an input means for inputting a control code to control the acting sound field variable device and a recording means for continuously recording the control code in the monaural signal recording section of the VTR, the sound field control code suitable for the video can be input to the video. and stereo signals can be recorded simultaneously. Furthermore, by recording the control code continuously until the next different control code is input, it is possible to reproduce a sound field suitable for the video no matter which part of the VTR is reproduced.

By providing a reproducing means for reproducing the recorded control code and an output means for outputting the control code, it becomes possible to repeatedly reproduce a sound field synchronized with the video.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention. In FIG. 1, l denotes a VTR 12 capable of recording and reproducing stereo and monaural signals, a control code input means for inputting a code to control the sound field variable device, and 3 a control code input means for inputting a code to control the sound field variable device; Recording means for continuously recording the same control code in the part where the monaural signal is recorded until the code is input; 4, control code reproducing means; 5, control code output means; 6, sound field variable device; 1
2 is a monitor for reproducing images.

Further, it is assumed that one code for controlling the sound field variable device in this embodiment corresponds to one certain sound field.

In FIG. 1, a stereo signal reproduced by a VTRI is input to a sound field variable device 6, and a video signal is input to a monitor 12, where they are respectively reproduced. The listener selects a desired sound field while viewing the video, and inputs a control code corresponding to the sound field into the input means 2. The input control code is continuously recorded in the part where the monaural signal of the VTRI is recorded by the recording means 3 until a different control code is input.At the same time, the control code changes the sound field. The signal is input to the device 6, and a sound field corresponding to the control code is reproduced at the actual interval. Then, when the VTR 1 is played back again, the recorded control code is played back by the playback means 4 and outputted to the sound field variable device 6 by the output means 5. Since this control code is recorded in synchronization with the video, it is possible to repeatedly reproduce the sound field synchronized with the video without inputting the control code using the input means 2. Furthermore, since the recording means 3 continuously records the control coat, it is possible to reproduce a sound field that matches the video in the same way as when it was recorded, no matter which part of the VTR is reproduced.

Furthermore, since the part that records the control code uses the VTR's monaural signal trunk, the VTR can be modified very easily.

FIG. 3 shows a tape pattern of a VTR capable of recording and reproducing stereo and monaural signals. In the present invention, a control code is recorded on the monaural signal track 10 shown in FIG. 3 and reproduced.

FIG. 4 is a block diagram showing a second embodiment of the present invention.

It is assumed that the sound field variable device of this embodiment requires a set of two or more control codes in order to reproduce a certain sound field.

In FIG. 4, parts having the same functions as those in FIG. 1 are numbered.

In FIG. 4, reference numeral 1 denotes a VTR 22 capable of recording and reproducing stereo and monaural signals, a control code input means for inputting a code for controlling the sound field variable device, and 3 a control code input means for inputting a control code inputted by the input means to control the following different controls. Recording means 13 continuously records the same control code in the part where the monaural signal is recorded until the code is input, and 13 outputs a code to reset the control code reception state to the sound field variable device if there is no control code. , if there is a control code, a reproduction means for reproducing the recorded control code as it is; 5 is a control code output means; 6 is a sound field variable device; 12 is a monitor for reproducing images.

With this configuration, when the codes that control the sound field variable device are divided into two or more sets, when the VTR is rewound midway, the last played control code is
Even if there is only one of the control codes, the sound field variable device is reset and returns to the state of waiting for the first control code, so that normal operation can be performed.

Furthermore, in the present invention, a normal VTR is used as a signal recording and reproducing device, but even if the device is capable of recording and reproducing video and audio signals and control codes separately, it is difficult to synchronize the respective devices. A similar effect can be obtained.

An input means for inputting a control code for controlling the sound effect field variable device of the invention, and the input means for a monaural signal recording portion of a video tape recorder capable of recording and reproducing stereo and monaural sound signals and image signals. By providing a recording means that continuously records one control code inputted by the same code until a different control code is inputted next time, the control code of the sound field suitable for the video is recorded. can do. Further, by providing a reproduction means for reproducing the recorded control code and an output means for outputting the control code, it becomes possible to repeatedly reproduce a sound field synchronized with the video.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control code input device for a sound field variable device according to a first embodiment of the present invention, FIG. 2 is a block diagram of a control code input device for a conventional sound field variable device, and FIG. 3 is a block diagram of a control code input device for a conventional sound field variable device. A tape pattern diagram of a VTR capable of recording and reproducing stereo and monaural signals is shown. FIG. 4 is a block diagram of a control code input device for a sound field variable device according to a second embodiment of the present invention.

Claims (2)

[Claims] (1) An input means for inputting a control code to control a sound field variable device that generates an arbitrary sound field, and a monaural signal of a video tape recorder capable of recording and reproducing stereo and monaural audio signals and image signals. a recording means for continuously recording the same code as one control code inputted by the inputting means on a recording portion until a different control code is inputted next; and a recording means for reproducing the recorded control code. 1. A control code input device for a sound field variable device, comprising: a playback device for outputting the reproduced control code; and an output device for outputting the reproduced control code to the sound field variable device. (2) According to claim (1), the reproducing means sends a certain code to the sound field variable device and resets the code receiving state of the sound field variable device if there is no control code within a certain period of time. Control code input device for the sound field variable device.