JPH02241300A - Control code input device for sound field varying device - Google Patents

Abstract

PURPOSE:To repeatedly realize a sound field, which is matched with a video to be intended, by entracting a vertical synchronizing signal included in a video signal, obtaining synchronization with the video and automatically executing transmission and recording for each fixed time until the next control code is sent. CONSTITUTION:A viewer selects the sound field suitable for the video by a control code input means 2 while the video reproduced by a TV 6 for monitor is observed and a sound reproduced by a sound field varying device is heard. A control code recording means 7 obtains the synchronization with the vertical synchronizing signal included in the video to be inputted from a picture synchronizing signal separating means 5 by using timer function built in the means 7 itself. Until the next control code is sent, the control code presently received is continuously recorded to an audio visual signal recording means 4 for each fixed time, for example, synchronously with the vertical synchronizing signal as mentioned above. Thus, at the time of reproducing, the sound field matched to the video, which is intended when the control code is recorded, can repeatedly be realized.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention extracts a vertical synchronization signal included in a video signal and synchronizes it with the video, and also synchronizes a control code corresponding to an arbitrary sound field with the video. By automatically transmitting and recording at regular intervals until the next control code is sent, a sound field that repeatedly matches the image as intended when the control code was recorded during playback can be realized. Variable In recent years, CDs and DATs that pursue high sound quality and high image quality,
and 5-VH3, high-definition, etc. have become increasingly popular. Furthermore, in recent years, there has been an increasing need for new AV system devices that combine video and sound.

The configuration of a conventional control code input device for a sound field variable device will be described below with reference to the drawings.

FIG. 2 is a block diagram showing the configuration of a conventional control code input device for a sound field variable device.

In FIG. 2, 1 is a sound field variable device that can create any sound field, 2 is a control code output means that outputs a control code uniquely related to sound field data, and 8 is a control code output device that outputs a control code uniquely related to sound field data. A first video tape recorder (hereinafter referred to as VTR) is used for outputting video signals, a second VTR 16 is used to record video signals, audio signals, and control codes on monaural signal tracks, and a monitor TV is used. be.

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

The video signal played on the first VTR 8 is a monitor TV.
6 and the second VTR 9.

Similarly, the audio signal reproduced by the first VTR 8 is transmitted to the second VTR 8.
The signal is input to the TR 9 and also to the sound field variable device 1 that creates an arbitrary sound field. The viewer selects a sound field suitable for the video using the control code output means 2 while viewing the video being played back on the monitor TV 6 and listening to the sound being played back on the sound field variable device. The control code uniquely related to the selected sound field data is manually input to the sound field variable device 1, and the sound field intended by the viewer is reproduced, and the control code is input to the monaural sound field of the second VTR 9. recorded on the signal track. Through these operations, a control code for sound field control synchronized with the video signal and the stereo audio signal is recorded in the second VTR 9.

With such a configuration, it is possible to repeatedly reproduce a sound field synchronized with the video.

Problems to be Solved by the Invention However, in the above configuration, firstly, the control code may not be written depending on the position of the tape to be played back when the control code is played back.

Second, it is difficult to achieve close synchronization with the video, which makes it impossible to reproduce a sound field that is faithful to the viewer's intentions when recording the control code.

In view of the above problems, the present invention extracts the vertical synchronization signal included in the video signal and synchronizes it with the video, and synchronizes a control code corresponding to an arbitrary sound field with the video to send the next control code. To provide a control code input device for a sound field variable device that can repeatedly realize a sound field that matches the image as intended at the time of recording the control code during playback by automatically transmitting and recording at fixed time intervals until the control code is recorded. It is.

Means for Solving the Problems In order to achieve this object, the control code input device for a sound field variable device of the present invention is constructed as follows.

An output means for outputting a control code for controlling a sound field variable device that creates arbitrary sound field data; a video synchronization signal separation means for separating a vertical synchronization signal included in a video signal; and a built-in timer function Recording means that synchronizes with the video vertical synchronization signal obtained from the synchronization signal means and outputs the control code to the outside in synchronization with the video vertical synchronization signal at fixed time intervals until the next control code is sent. A control code input device for a sound field variable device is characterized by comprising the following.

The vertical synchronization signal included in the working video signal is taken out and synchronized with the video, and the control code corresponding to the arbitrary sound field is synchronized with the video and is sent at regular intervals until the next control code is sent. By automatically transmitting and recording, it is possible to provide a control code input device for a sound field variable device that can repeatedly realize a sound field that matches the video as intended at the time of recording the control code during playback.

Embodiment Hereinafter, a control code input device for a sound field variable device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, 1 is a sound field variable device that can create an arbitrary sound field, 2 is a control code output means that outputs a control code uniquely related to sound field data, and 3 is a control code output device that outputs a control code that is uniquely related to sound field data. audio/visual signal input means for output;
4 is an audio/visual signal recording means capable of recording a control code uniquely related to a video signal, a sound signal, and sound field data; 5 is a video synchronization signal separation means for extracting a vertical synchronization signal contained in the video signal; , 6 is a monitor TV, and 7 is a control code uniquely related to the sound field data that is synchronized with the vertical synchronization signal included in the video signal and outputted to the audio/visual signal recording means at regular intervals. control code recording means.

The operation of the conventional control court human-powered device for a sound field variable device configured as described above will be described below with reference to the drawings.

The video signal generated by the audio/visual signal input means 3 is input to the monitor TV 6, the audio/visual signal recording means 4, and the video synchronization signal separation means 5 for extracting the vertical synchronization signal contained in the video signal. Similarly, the audio signal generated by the audio/visual signal input means 3 is input to the audio/visual signal recording means 4, and the sound field variable device 1 creates an arbitrary sound field.
is input. The viewer selects a sound field suitable for the video using the control code input means 2 while viewing the video reproduced on the monitor TV '6 and listening to the sound reproduced on the sound field variable device. The control code uniquely defined for the selected sound field is then input to the sound field variable device 1, and the sound field intended by the viewer is reproduced. On the other hand, said control code is input into a control code recording means 7.

The control code recording means 7 uses a built-in timer function to record the control code as an audio/visual signal in synchronization with the vertical synchronization signal included in the video input from the video synchronization signal separation means 5. Record in means 4. Further, the control code recording means 7 records the currently accepted control code at regular intervals, for example, in synchronization with the vertical synchronization signal, until the next control code is sent to the audio/visual signal recording means 4. Continue to record. However, the control code recording means is set so that if the same control code as the control code currently being accepted is sent, that code will not be accepted.

All of the above operations are performed in real time.

With such a configuration, it is possible to provide an input device for a sound field variable device that can repeatedly realize a sound field that matches the video as intended at the time of recording the control code during playback.

Effects of the Invention The present invention extracts a synchronization signal included in a video signal, synchronizes it with the video, and synchronizes a control code corresponding to an arbitrary sound field with the video until the next control code is sent. Now, we have developed an excellent control code for a sound field variable device that can repeatedly create a sound field that matches the image as intended when the control code was recorded during playback by automatically transmitting and recording it at fixed intervals. This makes it possible to realize an input device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a control code input device for a sound field variable device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional control code input device for a sound field variable device. 1...Sound field variable device, 2...Control code output means, 3...Audio/visual signal input means, 4...Audio/visual signal recording Means, 5... Video synchronization signal separation means, 6
- Old... Monitor TV, 7... Control code recording means, 8... First ■TR, 9...
2nd VTR0

Claims (1)

[Claims] An output means for outputting a control code for controlling a sound field variable device that creates arbitrary sound field data; a video synchronization signal separation means for separating a vertical synchronization signal included in a video signal; and a built-in timer function recording means that synchronizes with the video synchronization signal obtained from the synchronization signal means and outputs the control code to the outside in synchronization with the video vertical synchronization signal at fixed time intervals until the next control code is sent; This is a control code input device for a sound field variable device, characterized by comprising: