JPS61293086A - Reproduction system for video signal and voice information signal - Google Patents

Abstract

PURPOSE:To properly understand the correspondence of a video signal and a voice signal by reproducing the voice information signal from one of the speakers of a speaker part that is disposed at a position correspondent to the content of the video information that is displayed by a display part. CONSTITUTION:Speakers 14-17, as shown in the figure, are connected to the positive and negative terminals 10-13 of L and R of a pre-main amplifier 7 by means of speaker matrix connection, to perform 4-channel reproduction. Accordingly, the separation between the speakers 14 and 15 becomes infinitely large, and likewise, that between speakers 16 and 17 also becomes infinitely large. To a video projector 5, the video information signal correspondent to, for instance, the map or the scenery (view from an aircraft) of the terrain of the site is supplied from a video signal reproducing device 1, and the said information is displayed on a screen 6.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a video and audio information signal reproduction system.

(Prior Art) In recent years, information has been transmitted using visual information and audio information.

The costs of transmitting information include advances in recording and reproducing technology and communication technology, but the biggest cost is due to the diverse information provision demands of modern society.

The above-mentioned example of information transmission system Doji-C is a device that provides various guidance etc. using video information and audio information. The video information and audio information provided by this device to the information receiver have a close relationship in order to make it easier for the information receiver to understand.

In addition, although video information and audio information may be provided directly to one person, the information is provided by reproducing video and audio information that has already been recorded on a recording medium such as a video disk or video tape. There is also.

(Problem to be solved) However, when providing information by reproducing information recorded on a recording medium, there is a close relationship between the video information and audio information recorded on the recording medium. However, it may be difficult for those receiving the information to understand this.

This is not a problem if the displayed video information is only about what is being explained in the audio information, but usually related video information is also displayed at the same time to make the explanation easier. As a result, the receiver may not be able to understand which part of the displayed video information is currently being explained by the audio information.
Or they were irritated by the problem of the next piece of information being transmitted before they could understand it.

In addition, if the information provided lacks a sense of realism or if the reception of the information is inappropriate, there is a problem that information cannot be transmitted reliably. It was also right.

Therefore, the present invention displays the video information signal reproduced from the distribution medium on the display section, and the video information signal displayed on the display section among the four speakers (speaker placed at a position corresponding to the information content) By reproducing the audio information signal, the correspondence between video and audio information can be understood appropriately, giving a sense of realism. This is what we provide.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a method for producing video and audio information signals as shown in FIG. This is a block system diagram of the video and audio information signal 8-reproduction method according to the present invention.The video and reputation information signal reproduction method shown in FIG. An information signal recording medium on which a two-channel audio information signal converted from a channel audio information signal is recorded, and an information signal recording medium reproducing device for reproducing a video information signal and a two-channel audio information signal from the information signal recording medium. 1, a display unit 5.6 for displaying video information corresponding to the video information signal reproduced by this information signal recording medium reproduction device 1, and 2-channel audio information reproduced by this information signal recording medium reproduction device 1. It consists of a converting section that converts the signal into a four-channel audio information signal, and two pairs of speakers placed opposite each other, and is placed corresponding to the display section. It consists of speaker sections 14, 15, 16, and 17 that emit audio information signals of channels, and the contents of the video information displayed by the display sections 5 and 6 among the speakers of the speaker sections 14, 15, 16, and 17. The audio information signal is reproduced by a speaker placed at a position corresponding to the audio information signal.

(Example) A video and audio information signal reproducing system according to the present invention will be described below with reference to FIG.

A video and audio information signal reproducing device (hereinafter referred to as a video signal reproducing device) 1 such as a video disc player (or video cheap reloader), which is a program supply source (information signal supply source), outputs a video signal from a video signal output terminal 2. A signal is output, and a two-channel audio signal is output from the audio signal output terminal 3.4.

The video signal output from the video signal reproducing device 1 is supplied to a video projector 5, which is a video signal display device, and is displayed on a screen 60.

The fame signal output from the video signal reproducing device 1 is a two-channel stereo signal, and is output from the output terminal 3 (the - channel audio signal is supplied to the L channel input terminal 8 of the integrated amplifier 7, and is output from the output terminal 4). The output R channel audio signal is supplied to the R channel input terminal 9 of the integrated amplifier 7.

A positive terminal 10 of the 1-channel output terminal of the integrated amplifier 7 is connected to a positive terminal 22 of the speaker 16 and also to a positive terminal 20 of the speaker 15 .

The positive terminal 12 of the R channel output terminal of the integrated amplifier 7 is connected to the positive terminal 24 of the speaker 17 and also to the negative terminal 21 of the speaker 15.

The positive terminal 18 of the speaker 14 is connected to the negative terminal 23 of the speaker 1G and the negative terminal 25 of the speaker 17, and one negative terminal of the speaker 1/I is connected to the negative terminal 11 of the L channel output terminal of the integrated amplifier 7 and the R channel output. It is connected to the negative terminal 13 of the terminal.

In this way, connect speakers 14 to 17 to speaker 1.
~By connecting the speakers to perform 4-way channel reproduction, the separation between speakers 14 and 15 becomes infinite, and similarly, the separation between speakers 16 and 1 becomes infinite.
The separation between 7 and 7 is also infinite.

Further, the video projector 5 is supplied from the video signal reproducing device 1 with, for example, a color developing image corresponding to a map or a local map (for example, the amount of video information regarding one layer from an airplane,
This video information station is displayed on the screen 6.

J: Instead of arranging four speakers as shown in Figure 1, for example, one speaker is placed as shown in Figure 2.
A speaker 26 and a speaker 27 are arranged on both sides of the speaker 15, and the audio signal B supplied to the speaker 15 is subjected to signal processing related to delay in a delay circuit D2 shown in FIG. The processed audio signal Ba is supplied to a speaker 150 as shown in FIG.
4 speakers 28 and a speaker 29 are arranged on both sides, and the audio signal F supplied to the speaker 14 is subjected to signal processing related to delay in the Y extension circuit D1 as shown in FIG. + supplies the audio signal Fa that has been subjected to signal processing related to attenuation.

Similarly, as shown in FIG.
) There are also two speakers on both sides of the 30. The speaker 31 (speaker 32, speaker 33) is arranged, and the speaker 30. As shown in FIG. 3, the delay circuit D4 (delay circuit The audio signal Ra (la) is supplied after signal processing related to delay is performed in step D3) and signal processing related to attenuation is performed in attenuator ATTA (attenuator ATT3).

By arranging the speakers as described above and supplying a predetermined audio signal to each speaker, for example, if the speaker is located in the front, that is, closer to the speaker 14, and the audio signal in the rear is Even for people who have difficulty listening to the audio signal B emitted from the speaker 15, the speaker 26 and the speaker 2
The information content of the voice signal B generated from the speaker 15 can be understood by the voice signal Ba generated from the speaker 7.

It is not necessary for the listener 11 to always be at the central position with respect to the four directions in which the composite message 8 is transmitted, but it is possible to listen to the audio information at any position.

In addition, instead of using 12 speakers as shown in Fig. 2, it is possible to use the J: Uni four speakers shown in Fig.
In order to obtain an equivalent 4-phone effect using the arrangement of speakers shown in the figure, for example, arrange J: speakers 14 to 17 as shown in Figure 4, and arrange speakers 14 to 17 as shown in Figure 5. An audio signal may be supplied to the speaker 17.

Note that j shown in FIG.
Channel audio signal output terminal 3 and R channel audio signal output width: 2 channel audio signal output from slave 4, R is 4 channel audio signal F,
Output as B, L, R.

Furthermore, the speaker 14 shown in FIG.
A mixing circuit S1 supplies a signal FC which is a mixture of one speech word Bb which has been subjected to delay and attenuation processing in a delay circuit D1 and an attenuator ATT6, and a signal FC as shown in FIG. 5 is supplied to the speaker 15 shown in FIG. "Show": The audio signal B and the audio signal F output from the sea urchin conversion circuit 34 are processed by the delay circuit D5 and the attenuator ATT5 (the audio signal "b" which has been subjected to No. 3 processing) by the R combining circuit S2. The mixed signal 3c is supplied to the speaker 16 shown in FIG.
As shown in the figure, the audio signal R output from the conversion circuit 34 and the audio signal R are connected to a delay circuit D8 and an attenuator ATT.
Audio signal R subjected to signal processing related to delay and attenuation in a
The signal 1c mixed with the audio signal R and the audio signal 1c from the conversion circuit 34 is supplied to the speaker 17 shown in FIG. The audio signal 1b subjected to signal processing regarding delay and attenuation by the circuit D7 and the attenuator ATT7 is mixed with the audio signal 1b by the mixing circuit S4.
If the mixed signal RC is supplied, J: Yes.

Next, the recording of the video information signal and audio information described above will be explained with reference to FIG.

For example, voice signal '3 & (for example, microphone 35
~38) are arranged at 90 degree intervals in four directions, and the video information is recorded from a position at a predetermined angle α by directing the microphone 35 oriented in this way. Record using three cameras.

J of the 6th μm: 131.4 channels - 2 channels with 8-voice bow F, B, L, , 1 of 4 blocks 17 channels
The signal is converted into a 2-channel fame signal by the 7-channel converter (φl path/IO) and recorded on a recording medium such as a video disk or video tape.

The audio signal picked up by the microphone 35 is the conversion circuit/
It cannot be supplied to the IO attenuation circuit/11.

In the attenuation circuit/11, for example, the audio signal 1 attenuated by 3 [d13] is input to the - input terminal of the r1 circuit/12 and 1.
It is supplied to one input terminal of the arithmetic circuit/I3.

In addition, the audio signal 1-[
The audio signal gR, which is supplied to the other input terminal of the addition circuit 42 and picked up by the microphone 38, is supplied to the other input terminal of the addition circuit /I3.

The addition circuit '1d42 outputs a signal obtained by adding the attenuated signal of the audio signal F, which is the output signal of the attenuation circuit 41 supplied to one input terminal, and the audio signal 1- inputted to the other input terminal, and performs the addition. The circuit 43 outputs a signal obtained by adding the attenuated signal of the audio signal F, which is the output signal of the attenuation circuit 41, supplied to one input terminal and the audio signal R input to the other input terminal.

The output of the adder circuit 42 is supplied to one input terminal of the adder circuit 44, and the output signal of the adder circuit 43 is supplied to one input terminal of the subtractor circuit 45.

The other input terminal of the adder circuit 44 receives the audio signal B picked up by the microphone 36 through the attenuation circuit 46, for example, 3[
dB] is attenuated and supplied.

The adder circuit 7I4 outputs a signal obtained by adding the output signal of the adder circuit 42 supplied to one input terminal and the audio signal B attenuated by the attenuation circuit /I6 supplied to the other input terminal by IJt to the output terminal /17. Output to.

The other input terminal of the subtraction circuit 45 receives the audio signal B picked up by the microphone 36 through the attenuation circuit 46, for example, 3[
dB] is attenuated and supplied.

The subtraction circuit/15 subtracts the output signal of the addition circuit 43 supplied to one input terminal and the audio signal (IR) attenuated by the attenuation circuit 46 supplied to the other input terminal, and outputs the result to the output terminal 48. Output.

Also, the video signal is above) blurred J: sea urchin microphone 35
Video signals recorded by three video cameras at a position where the angle of rotation is α are outputted from an output terminal 49.

In other words, from the output terminals 47 and 48, the conversion circuit 46 outputs 4
The two-channel audio signals F, B, l, and R are converted into two-channel audio signals L (F+1-B), R(F-1-R-
B') is output, and video signals are output from the four output terminals.

Further, the video signals and audio signals outputted from the output terminals 47 to 4 are recorded on a recording medium such as a video disk or a video tape.

By the way, as for the images displayed on the screen 6 shown in FIGS. 1, 2, and 4, for example, as described above, a map or a local image corresponding to an actual map is displayed. , as shown in Figure 7.
The upper part of the screen 6 is north, the lower part of the screen 6 is south, the right is east, and the left is west.

That is, for example, when explaining the sun that is displayed in the north direction, the explanation is performed using the audio signal F. Therefore,
At this time, the speaker 1/I will mainly produce the sound.

If the speakers placed close to the objects displayed in the figures above mainly emit sounds, there will be a sense of realism, and the explanation will match the video, making it easier to understand.

Normally, as described above, the display is performed with the information set to north, and in this case, the operating direction of the sea urchin video projector 5 is downward from the -1 side of the screen 6, as shown in FIG. 8(A). However, depending on the program to be displayed, it may be more convenient to set the upper direction to the south. In such a case, the scanning direction of the video projector 5 may be set as shown in FIG. 8(A).
On the contrary, as shown in FIG. 8(B), the screen 6 is changed from the bottom to the top, and the audio signal supplied to the speaker is also changed so as not to correspond to the display on the screen 6 of the video projector 5. In other words, the top is changed from the bottom to the top. In the case of north, the audio signal F is supplied to the speaker 14, but when the setting is changed to indicate that the upper direction is south, the audio signal B is supplied to the speaker 14.

For example, the above-mentioned change in the scanning direction of the video processor 5 can be applied to the video (3) output from the video signal reproducing device if 1.
This can be achieved by recording the first line in the same direction and reading it out in the opposite direction to the recording port 5.

Further, such a change in display format and a change in the audio signal supply destination accompanying the change in display format are changes in the vertical direction (instead of J, it is also possible to change in the horizontal direction, for example).

By the way, an example of the above-mentioned images IJ and Z is an image corresponding to a map or an actual map, and is a so-called two-dimensional image, for example, an image seen from the top of an airplane.

With a 4F program like this, it is easy to recognize the quality relationships on the map, but it is difficult to get a sense of the presence of the actual location. Corresponding to speaker 1/1 to speaker 17,
By arranging four video projectors, it is possible to reproduce images corresponding to the respective directions while standing in the actual location using the four video projectors.

For example, if the direction in which the speaker 14 is arranged is north,
If the direction in which the speaker 15 is arranged is south, the direction in which the speaker 17 is arranged is east, and the direction in which the speaker 16 is arranged is west, then the screen 50 of the video projector will display an image in the north direction. is displayed, the screen 51 of the video projector displays an image in the south direction, the screen 52 of the video projector displays an image in the east direction, and the screen 53 of the video projector displays an image in the west direction. and the video-projector screen 50 (51
, 52, 53) is displayed, the speaker 1/1
By making (15, 16, 17) sound, a sense of realism can be obtained.

In other words, if only the screen 6 of the video projector was displayed, the image would be a two-dimensional image like this. If four units are arranged in a corresponding manner, it is possible to display the image that would appear if you were actually standing in the location and looking around in four directions.

In this case, the audio signal is recorded in advance so that only the speakers corresponding to the video projector to be displayed will produce the sound, that is, the two-channel audio signals t- and R reproduced by the video signal reproducing device 1 will be transmitted to the conversion circuit. 5/I, the signal is processed and converted into a 4-channel audio signal, and the audio signal output from the conversion circuit 54 is passed through the amplifier 55 so that it can be output from a speaker corresponding to the screen of the video projector displaying the image. Audio signals are recorded on a video disc in a recording format that is supplied by a video disc.

Further, the video signals are recorded in order from the north, for example, and the video projector to be displayed can be switched by the switch 10 at the switching portion of each video signal.

The selection of the switch 40 is controlled by an external control signal, and this control signal is, for example, superimposed on the vertical blanking period of the video signal and recorded on a recording medium such as a video disk or magnetic tape. During reproduction, the signal is separated from the video signal reproduced by the video signal reproduction device 1 and supplied to the switch 56.

Next, recording of audio signals in the case shown in FIG. 9 will be explained with reference to FIG. 10.

For example, an audio signal source (e.g., microphone 35-38
) are interspersed at 90 degree intervals in four directions, and the 4-channel audio signals F, B, L, and R are converted into 2-channel audio signals by a conversion circuit 57 that performs 4-channel to 2-channel conversion. It is recorded on a recording medium such as a video disc or video tape.

The audio signal F picked up by the microphone 35 is sent to the conversion circuit 5
It is supplied to an attenuation circuit 59 via an electronic switch 58 of No. 7.

The audio signal "attenuated by, for example, 3 dB" by the attenuation circuit 59 is supplied to one input terminal of the addition circuit 60 and one input terminal of the addition circuit 61.

Also, the audio signal 1- picked up by the microphone 37 is supplied to the other input terminal of the adding circuit 60 via the electronic switch 62, and the audio signal R picked up by the microphone 38 is supplied to the other input terminal of the adding circuit 60.
is supplied to the other input terminal of the jltl calculation circuit 61 via the electronic switch 63.

The adder circuit 60 has an attenuation circuit 5 supplied to one input terminal.
The adder circuit 61 outputs a signal obtained by adding the attenuated signal of the audio signal F, which is the output signal of the input terminal 9, and the audio signal inputted to the other input terminal. A signal obtained by adding the attenuated signal of the audio signal F and the audio signal R input to the other input terminal r is output.

The output signal of the adder circuit 60 is supplied to one input terminal of the subtracter circuit 64, and the output signal of the adder circuit 61 is supplied to the adder circuit 65.
is supplied to one input terminal of

Further, the audio signal B picked up by the microphone 36 is supplied to an attenuation circuit 67 via an electronic switch 66, and is attenuated by, for example, 3 [dB] to a subtraction circuit 64.
and the other input terminal of the adder circuit 65, respectively.

The subtraction circuit 671 outputs a signal obtained by subtracting the audio signal B attenuated by the attenuation circuit 67 supplied to the other input terminal from the output signal of the addition circuit 60 supplied to one input terminal to the output terminal 68. .

The adder circuit 65 is an adder circuit 6 supplied to one input terminal.
A signal obtained by subtracting the audio signal B attenuated by the attenuation circuit 67 supplied to the other input ☆i: child from the output signal of the first output signal is output to the output terminal 69.

Further, the electronic switches 58, 62, 63, and 66 mentioned above are selectively switched by a switch 60.

The electronic switch 58.66 is selectively supplied with a positive voltage or a negative voltage by the switch 71, and when the switch 71 is selectively switched to the terminal 72 side, the electronic switch 58.66 is supplied with a negative voltage. Voltage is supplied, the electronic switches 58, 66 are inactive, and the audio signal F is not supplied to the five attenuation circuits, nor is the audio signal B to the attenuation circuit 67. In addition, when the switch 1 is selectively switched to the terminal 73 side, a positive voltage is supplied to the electronic switch 58.66, the electronic switch 58.66 is in the operating state, and the audio signal is " is supplied to the attenuation circuit 59, and the audio signal B is also supplied to the attenuation circuit 67.
It will be in a state where it is supplied to

Similarly, the electronic switches 62 and 63 are selectively supplied with positive voltage or negative voltage by the switch 74, and when the switch 74 is selectively switched to the terminal 75 side, the electronic switches 62 and 63 are supplied with a positive voltage or a negative voltage. Positive voltage is supplied,
The electronic switches 62 and 63 are in a non-operating state, and the audio signal is not supplied to the adder circuit 60, and the audio signal No. 13B is also not supplied to the adder circuit 61. On the other hand, when the switch 74 is selectively switched to the terminal 76 side, a negative voltage is supplied to the electronic switches 62 and 63, the electronic switches 62 and 63 are in the operating state, and the audio signal F is transferred to the adder circuit. 60, and the audio signal B is also not supplied to the adder circuit 61.

Furthermore, the switches 71 and 74 are interlocked, so that when one switch is supplying a positive voltage, the side switch is in a state of supplying a negative voltage.

In other words, when the audio signals F and B are processed by the conversion circuit 57 and output (the switch 71 is set to the terminal 73 side)
When the switch 7/I is switched to the terminal 75 side), the audio signal 1-1R is not processed by the conversion circuit 57, so the audio signal F-B is output from the output terminal 68. Output*: Voice message e from child 69
F-1-B is output.

On the other hand, when the audio signals R and R are processed and output by the conversion circuit 57 (when the switch 71 is selectively switched to the terminal 74 side and the switch 74 is selectively switched to the terminal 76 side), the audio signal F , B are not processed by the conversion circuit 57, so the output terminal 68 outputs the audio signal q1, and the output terminal 69 outputs the audio signal R.

For example, when recording a reputation signal corresponding to the screen 50 disposed in the north direction shown in FIG.
The data may be recorded on a recording medium such as a video disc or a video tape by selectively switching the switch 74 to the terminal 73 side and the switch 74 to the terminal 76 side.

Next, recording of audio signals in the case shown in FIG. 9 will be explained with reference to FIG. 11.

For example, an audio signal source (e.g. Microbon 35-38
) are arranged at 90 degree intervals in four directions, and the 4-channel audio signals F, B, L, , R are converted into 2-channel audio signals by a conversion circuit 77 that performs 4-channel to 2-channel conversion. It is recorded on a recording medium such as a video disc or video tape.

The audio signal F picked up by the microphone 35 is sent to the conversion circuit 7
The audio signal "is supplied to the attenuation circuit 79 via the fader 78 of 7, and is attenuated by, for example, 3 [dB] in the attenuation circuit 79.
The audio signal B, which is supplied to the first input terminal of the microbon 3G and collected by the microbon 3G, is supplied to the attenuation circuit 83 via the fader 82 of the conversion circuit 77.
The [dB] attenuated audio signal B is supplied to the second input terminal of the subtraction circuit 80 and the second input terminal of the addition circuit 81.

Further, the audio signal R picked up by the microphone 37 is supplied to the third input terminal of the subtraction circuit 80 via a fader 84, and the audio signal R picked up by the microphone 38 is supplied to the addition circuit 81 via a fader 85. is supplied to the third input terminal of.

The subtraction circuit 80 is connected to the attenuation circuit 7 supplied to the first input terminal.
A signal obtained by subtracting the attenuation signal of the audio signal B, which is the output signal of the attenuation circuit 83 supplied to the second input terminal, from the attenuation signal of the audio signal B, which is the output signal of 9, is supplied to the third input terminal. The audio signal which is the output signal of the fader 81!I [
Outputs the signal with the addition of -.

The addition circuit 81 is connected to the attenuation circuit 7 supplied to the first input terminal.
9, the attenuated signal of the audio signal B which is the output signal of the attenuation circuit 83 inputted to the second input terminal, and the audio signal R which is the output signal of the fader 85). Outputs the added signal.

-2/l- The output signal of the subtraction circuit 80 is outputted from the output terminal 87 via the amplifier circuit 86, and the output signal of the addition circuit 81 is outputted from eight output terminals via the amplifier circuit 88.

Further, the IC faders 78, 82, 84, 85 mentioned above are selectively switched by a potentiometer 90.

The faders 78, 82 are supplied with voltages that are continuously varied from positive to negative by potentiometers 91, and when the potentiometers 91 are set to the terminal 92 side, the faders 78, 82 are supplied with voltages that are continuously variable from positive to negative. A negative voltage is supplied, and the amount of attenuation of the fader 78° 82 becomes infinite as shown in FIG. state.

On the other hand, when the potentiometer 91 is set to the terminal 93 side, a positive voltage is supplied to the fader 78.82, and the amount of attenuation of the fader 78.82 becomes zero as shown in FIG. The audio signal F is supplied to the attenuation circuit 79, and the audio signal B is also supplied to the attenuation circuit 83.

Similarly, the faders 84 and 85 are supplied with voltages that are continuously varied from positive voltage to negative voltage by a potentiometer 94, and when the potentiometer 94 is set to the terminal 95 side, the electronic switch 62, 63 The fader 84. ．． 85 is supplied with a positive voltage, the amount of attenuation of the fader 84.85 becomes infinite as shown in FIG. It becomes a state where it is not supplied.

On the other hand, when the potentiometer 94 is set to the terminal 96 side, the fader 84.

85 is supplied with a positive voltage, the amount of attenuation of the faders 84 and 85 becomes zero as shown in FIG. 12, and the audio signal R is supplied to the subtraction circuit 80.
1 is supplied.

Furthermore, potentiometer 91 and potentiometer 94
The two potentiometers are interlocked, so that when one potentiometer is supplying a positive voltage, the other potentiometer is supplying a negative voltage.

In other words, when the potentiometer 91 is set to the terminal 92 side and the potentiometer 94 is set to the terminal 95 side, the audio signals F and B are sent to the signal processor 1! by the conversion circuit 77. p
! No, voice message 1-. Only R is subjected to signal processing by the conversion circuit 77, and the output J terminal 87 outputs an audio signal, and the output terminal 89 outputs an audio signal R.

When the potentiometer 91 is set to the terminal 93 side and the potentiometer 94 is set to the terminal 96 side,
Since the audio signals R and R are not processed by the conversion circuit 77, and the audio signals F and B are processed by the conversion circuit 77, the audio signal F-8 is output from the output terminal 87.
An audio signal F+B is output from the output terminal 89.

For example, when recording an audio signal corresponding to the screen 50 arranged in the north direction shown in FIG.
6 side and record on a recording medium such as a video disc or a videotape.

(Effects of the Invention) Since the present invention is as described above, the correspondence between video information and audio information can be quickly and appropriately understood without using any special equipment, giving a sense of realism, and information can be received by hand. It has the advantage that one piece of information can be transmitted regardless of the viewing position.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a first embodiment of the video and audio information signal reproduction system according to the present invention, FIG. 2 is a diagram showing an example of speaker arrangement, and FIG. 3 is a diagram showing the speaker arrangement shown in FIG. 2. A diagram illustrating the supply of audio signals to each speaker,
4 is a diagram showing an example of speaker arrangement, FIG. 5 is a diagram for explaining the supply of audio signals to each speaker in the speaker arrangement shown in FIG. 4, and FIG. 6 is a diagram showing an example of the speaker arrangement shown in FIG. 1. FIG. 7 is a block system diagram of the recording system of a recording medium reproduced by the video and audio information signal reproduction method according to the present invention, and FIG. A) and CB) are diagrams for explaining the method of displaying video information in the video and audio information signal reproduction method shown in FIG. 7, and FIG. FIG. 10 and FIG. 11 show the third embodiment.
A block system diagram of the recording system of the recording medium reproduced by the video and audio information signal reproduction method shown in the figure, FIG.
FIG. 3 is a diagram showing the relationship between the output of a potentiometer and the attenuation amount of a fader used in the recording system shown in the figure. 1... Video and audio information signal reproducing device (video signal reproducing device), 2... Video signal output terminal, 3.4... Audio signal output terminal, 5... Video projector, 6.50.51 .52.53...Screen, 7...
・Bremain amplifier, 8... L channel input terminal, 9... R channel input terminal, 10... River-channel output width 1 positive terminal 11...
・“Channel output terminal negative pole Q21; child 12...R
Positive terminal 13 of channel output terminal 1 terminal...Negative terminal terminal 14, 15, 16, 17.2 of R channel output terminal
6.27, 28° 29.30.31, 32.33...
Speaker 18... Positive terminal of speaker 14, 19... Negative terminal of speaker 14, 20... Positive terminal of speaker 15, 21... Negative terminal of speaker 15, 22... Positive terminal of speaker 16. , 23... Negative electrode terminal of speaker 16, 24... Positive electrode width of speaker 17: terminal, 25... Negative electrode terminal of speaker 17, 34.40.54.57.77... Conversion circuit, 35.
36.37.38...Microphone, 39...Video camera, 41.46.59.67.79.83...Attenuation circuit,
42.43.44.60.61゜65.81...Addition circuit, 45.64.80...Subtraction circuit, 47.48,49.6B,69,87.89...Output terminal, 55 ...Amplifier, 56.70.71.74...Switch, 58.62.
63.66...electronic switch, 72.73, 75.7
6.92, 93.95°96... terminal, 78.82.84.85... fader, 86.88...
...Amplification (i'il path, 90.91.94...Potentiometer, D+-De
...Delay circuit, ATT+~ΔT''Is...Attenuator, 81~S4
...Mixed circuit. North Xiong t7 FfI

Claims (1)

[Claims] An information signal recording medium on which a video information signal and a 2-channel audio information signal converted from a 4-channel audio information signal related to the video information signal are recorded; an information signal recording medium reproducing device that reproduces an information signal and a two-channel audio information signal; a display section that displays video information corresponding to the video information signal reproduced by the information signal recording medium reproducing device; and this information signal recording. It consists of a converting section that converts a 2-channel audio information signal reproduced by a media reproducing device into a 4-channel audio information signal, and a pair of speakers arranged at opposite positions, and corresponds to the display section. and a speaker section that outputs the four-channel audio information signal converted by the converting section, and a speaker section of the speaker section that is placed at a position corresponding to the content of the video information displayed by the display section among the speakers of this speaker section. A video and audio information signal reproducing method characterized in that the audio information signal is reproduced by a speaker arranged.