JPH08321999A - TV with voice print function - Google Patents

Abstract

(57) [Summary] [Purpose] Synchronize with the content of music and enable display with a relation to the position of the TV display screen. [Structure] Bandpass filter 12 for frequency-dividing a sound signal
, Multiplexer 531 and A / D converter 53
2, a palette conversion processing software 533 for converting into display colors, a memory 13 for temporarily storing display information, and a writing timing generation processing software 5 for the memory 13.
34, the read timing generation processing software 535, and the D / A converter 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television with a voice print function.

[0002]

2. Description of the Related Art Conventionally, a television at that time is connected to a home-use television by connecting an audio device such as a CD player and listening to music using a speaker of the television, or when it is matched with a dedicated music channel of BS or CS broadcasting. As the video, a video completely unrelated to the music currently being listened to is displayed, or a blue back video is displayed depending on the input setting. The fact that this video content is irrelevant to the music content has a negative effect on the interior environment of the TV installation place due to the waste of electricity costs due to the projection of video that you do not want to see positively, and the display of extraneous video. It was happening.

FIG. 11 shows a sound display device disclosed in Japanese Patent Laid-Open No. 214896/1990, which is composed of a sound processing circuit 110 and an adding circuit 115. First, the audio signal from the CD player is input to the logarithmic conversion circuit 711, and the logarithmically converted audio signal is input to the band pass filter 112R of the next stage.
It is supplied to 112G and 112B. These band-pass filters 112R, 112G, 112B have band center frequencies of 1 kHz, 2 kHz, and 8 kHz, respectively, so that the audio signal is divided into frequency bands centered at 1 kHz, 2 kHz, and 8 kHz. The frequency-divided audio signals are respectively supplied to the bottom clamp circuits 113R, 113G, 11
3B and peak hold circuits 114R, 114G, 11
Adder circuits 116R, 116G, and 116B through 4B superimpose with the three primary color signals R, G, and B or the color video signal. Bottom clamp circuit 113R, 113G, 113B
The audio signal input to is clamped at its bottom position, and the audio signal is displayed as a horizontal stripe color change on the tube surface of the color cathode ray tube at a predetermined cycle. As a result, it is possible to display a red color signal near 1 kHz, a green color near 2 kHz, and a blue color signal near 8 kHz.

[0004]

When listening to music using only the speaker of the TV, such as when connecting a music CD player to the TV or listening to a program of a music specialized channel of BS or CS broadcasting, the If it is possible to give meaning to an irrelevant TV image, it is possible to eliminate the waste of the display, which has conventionally been inevitable regardless of whether or not a TV image meaningless to music is liked. When listening to music, for example, if the contents of the TV screen also change in synchronization with the contents of the music, the TV screen can also be focused on the listener, and the display itself is not wasted. Therefore,
It tries to change the contents of the TV screen in synchronization with the contents of music, but in the conventional configuration as described above, the displayed screen is simply a horizontal stripe pattern, and the amount of information analyzed by frequency analysis and the TV There is no relation with the display position on the screen,
Also, the display colors are too poor to change with only the three primary colors.

An object of the present invention is to use a microcomputer for controlling a television and synchronize with the contents of music to make a change in the relation between the amount of information analyzed by frequency and the display position on the television screen. It is to enable rich display.

As a result, even when listening to music using only the speaker of the television, the listener can be comfortably used as an interior, and the amount of information subjected to frequency analysis and the amount on the television screen are analyzed. By having a relationship with the display position, if you look at the TV screen display,
The magnitude of each frequency component of the currently input sound information at that time can be known.

[0007]

In order to solve the above-mentioned problems, the present invention provides means for frequency-dividing an input sound signal by using a plurality of band pass filters, and a frequency-divided sound signal, A means for sequentially performing analog / digital conversion by writing timing generation processing software for arbitrary display using a microcomputer for controlling a television, and a converted sound signal by a palette conversion processing software. A means for converting the display color corresponding to the volume of the divided sound signal, a storage means for storing the converted display data, and a read timing generation processing software for generating the read timing based on the television control signal. Means to read from storage means to perform digital / analog conversion, and add to video signal of TV And configured to include a means for.

[0008]

With the above structure, the contents of the TV screen can be variedly displayed in synchronization with the contents of music.
In addition, since it is possible to correlate the amount of frequency-analyzed information with the display position on the TV screen, even when listening to music using only the TV speakers, the listener is comfortable and the interior Also, since the magnitude of each frequency component of the currently input sound information at that time can be known from the TV screen display, another way of enjoying is possible. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a television with a sound print display function of the present invention will be described below with reference to FIGS.

First, the structure of the present invention will be described with reference to FIGS.

The sound print processing circuit of the television with a sound print display function of the present invention shown in FIG. 1 is mainly composed of a sound print processing circuit 11 by hardware, an internal circuit of a television control microcomputer and sound print processing control software 53. Composed.

More specifically, a bandpass filter 12 for frequency-dividing a sound signal from a TV tuner or a video tape recorder or a sound signal from a CD player, etc., and a multiplexer 5 for sequentially selecting the frequency-divided sound signal.
31, an A / D converter 532 for converting sequentially selected sound signals into digital data, a palette conversion processing software 533 for converting into a display color corresponding to the converted digital data, and a memory 13 for temporarily storing display information.
And write timing generation processing software 534 that generates a write address and write timing corresponding to the display screen of the display unit for the memory 13, and read that also generates a read address and a read timing from the television control signal for the memory 13. Timing generation processing software 535 and D for converting the digital data read from the memory 13 into a video signal for display
And / A converter 14.

The television with a voice print display function of the present invention shown in FIG. 2 has a voice print processing circuit 1 by the hardware shown in FIG.
1 and the internal circuit of the television control microcomputer 50 and the voice print processing control software 53, a tuner IF circuit 21 for receiving a television signal, a sound signal of the received television signal, A sound selection amplifier circuit 22 for selecting a sound signal from a video tape recorder and a sound signal of a CD player or the like and sounding a sound print processing circuit 11 and a speaker in the next stage, and a television video signal and a video tape recorder. An adding circuit 23 for adding the video signal and the display signal from the sound print processing circuit 11, a detection video circuit 24 for amplifying the added video signal, and a synchronization control signal for displaying an image from the amplified video signal. And a color signal processing circuit 26 that performs processing for displaying an image from a video signal with the generated synchronization control signal.
And the color control tube 28 from the generated synchronization control signal.
A deflection high voltage circuit 27 for generating a high voltage for displaying an image and a blue back generating circuit 29 for displaying a blue back when no image is being viewed.

In addition, a television control microcomputer 50 is also provided.
There are tuner control software 51, voice selection control software 52, addition control software 54, which are the internal circuits and control software of the above, and a remote control circuit and remote control software 55 are provided.

Next, the operation of the present invention will be described with reference to FIGS. When the tuner IF circuit 21 shown in FIG. 2 is receiving a television signal, or when watching a video recorded by connecting a video tape recorder, or when not watching any video. In the blue back display state, a sound signal from a television signal, a sound signal from a video tape recorder, or a sound signal from a CD player or the like is selected by the sound selection / amplification circuit 22 and is sent to the sound print processing circuit 11 in the next stage. Is entered. The input sound signal is at least 6 divisions in each of R and L by the band pass filter 12 shown in FIG. 1, and 10 divisions or more even when R and L are combined,
Preferably, frequency division is performed in about 10 divisions for each of R and L, and about 16 divisions even when R and L are combined.

The frequency-divided sound signal is processed by the writing timing generation processing software 5 of the television control microcomputer.
The color information corresponding to the information amount of the sound, which is sequentially selected by the multiplexer 531 according to the write address and the write timing by 34, converted into digital data by the A / D converter 532, and frequency-divided by the palette conversion processing software 533. And is written in the memory 13. Digital data to be converted is at least 3
It is good to use 8-bit data, preferably 4-bit 16-level data.

Next, the read operation will be described. Based on the control signal from the synchronization control circuit 25 shown in FIG. 2, the memory 13 is read from the read timing generation processing software 535 shown in FIG.
The display data is read from. The read data is converted into an analog signal by the D / A converter 14. The converted analog signal is added to the adder circuit 2 shown in FIG.
In 3, the television video signal from the tuner IF circuit 21, the video signal from the video tape recorder, or the blue back display signal from the blue back generation circuit 29 when no video is being watched is added to the detected video circuit. Two
It is amplified by 4.

A luminance signal is connected to the color cathode ray tube 28 from the amplified video signal, and the amplified video signal is synchronously separated by the sync control circuit 25 to generate a horizontal sync signal and a vertical sync signal. In the color signal processing circuit 26,
The chromaticity signal modulated at 3.58 MHz included in the amplified video signal is separated and connected to the color CRT 28. Further, a high voltage sawtooth wave is generated in the deflection high voltage circuit 27 from the horizontally separated vertical synchronization signal and the vertical synchronization signal, which are applied to the deflection yoke coil of the color cathode ray tube 28.

The write timing generation processing software 534 shown in FIG. 1 determines what kind of pattern is to be displayed on the television screen depending on how the write address of the memory 13 and the write timing are generated.

Next, a display example on the television screen of the present invention will be described with reference to FIGS. 3, 4, 5, and 6.

FIG. 3 shows an example of a display on the television screen. The upper part of the screen corresponds to the sound input L channel 301, and the lower part of the screen corresponds to the sound input R channel 302. The time change of the sound signal is displayed.

In the display of the frequency-divided sound signal, the high frequencies 303 and 304 are displayed at the top of the L channel 301 and the R channel 302 of the sound input, respectively, and the lower frequencies are displayed in order downward. Cage,
For example, 24 kHz, 15 kHz, 9.
6kHz, 3.8kHz, 2.4kHz, 1.6kHz,
1kHz, 640Hz, 400Hz, 240Hz, 15
The frequencies are 0 Hz, 96 Hz, 60 Hz and 38 Hz.

The display color of the frequency-divided sound signal represents the volume of each frequency-divided sound signal. For example, when the volume is low, it is displayed in a cold blue color, and as the volume is gradually increased, the color is displayed in the warm color direction. , At the maximum volume, it is displayed in red, so the change in volume can be seen at a glance.

In the horizontal direction of the screen, the passage of time is represented, and the scroll display is performed on the right side or the left side with time. That is, at the time of right scroll 305, the current frequency spectrum is displayed at the left end 306 of the screen, and the past time elapsed is displayed as going to the right direction of the screen. At the time of left scroll 307, the current frequency spectrum is displayed at the right end 308 of the screen. The frequency spectrum is displayed, and the past elapsed time is displayed as going to the left of the screen.

FIG. 4 shows another display example on the television screen. The upper part of the screen shows the time change of the frequency-divided sound signals of the L channel 401 and the R channel 402 of the sound input, and the lower part of the screen. L channel 40 for sound input
3 and the time change of the total volume of the R channel 404 are displayed.

The display of the frequency-divided sound signal in FIG. 4 is the same as the display in FIG. 3, but in FIG. 3 it was displayed in the entire vertical direction, but in FIG. It is half of the display.

The display color of the total volume of the L channel 403 and the R channel 404 of the sound input may be displayed in a predetermined single color, but preferably, it corresponds to the volume of the sound signal, for example, a low volume. When it is, it is displayed in a cold blue color, and as the volume gradually rises, the display color is in the warm color direction, and when it is at the maximum volume, it is displayed in red. Change, the display becomes lively.

Similar to the display in FIG. 3, the horizontal direction of the screen represents the passage of time and is scrolled to the right or left with time. That is, at the time of right scroll 405, the size of the current frequency spectrum and each total volume are displayed at the left end 406 of the screen, and the past elapsed time is displayed as going to the right of the screen. At the time of left scroll 407, At the right end 408 of the screen, the magnitude of the current frequency spectrum and each total volume are displayed, and as time goes to the left side of the screen, the past elapsed time is displayed.

FIG. 5 shows another display example on the television screen, and the frequency-divided sound signals of the L channel and the R channel of the sound input at the present time are displayed in a bar graph. This bar graph display is performed according to the volume that changes from moment to moment. The L channel 501 for sound input is displayed on the left side of the screen, and the R channel 5 is displayed on the right side of the screen.
02 is displayed. Higher frequencies (503, 504) are displayed on the right side of each channel, and lower frequencies are displayed toward the left in order, for example, 24 kHz, 15 kHz, 9.6 kHz, 3.8 k from the right side.
Hz, 2.4 kHz, 1.6 kHz, 1 kHz, 640
Hz, 400Hz, 240Hz, 150Hz, 96Hz,
It is 60 Hz and 38 Hz.

The display color of the bar graph display may be a single predetermined color, but preferably, it is easy to distinguish each frequency component by color-coding by frequency of each frequency-divided sound signal. Corresponding to the volume of each frequency-divided sound signal, for example, a cold blue color is displayed when the volume is low, a warm color is displayed as the volume gradually increases, and a red color is displayed when the volume is maximum. As a result, the change in volume can be expressed by the change in display color as well as the vertical movement of the bar graph, and the change in input volume can be seen at a glance.

FIG. 6 shows an example in which the time change display of the frequency-divided sound signal of FIG. 3 and the bar graph display of the frequency-divided sound signal at the present time of FIG. 5 are simultaneously displayed.

The frequency-divided sound signal display 601 on the upper side of the screen is the same as the display in FIG. 4 in which the display of FIG. 3 is reduced to the upper side of the screen, and is scrolled in the horizontal direction of the screen with the passage of time. . The display on the lower side of the screen is a display 602 in which the display of FIG. 5 is reduced to the lower side of the screen.

Next, the operation of the processing software of the television control microcomputer of the present invention will be described with reference to FIGS. 7, 8, 9, and 10.

FIG. 7 shows an example of the main program of the sound print processing control software using the television control microcomputer. When the TV with the sound print display function of the present invention is set to the sound print display mode, first, Of the various display modes, an arbitrary display mode is selected (701) and various initial settings are made (702).

Next, the timing for inputting a sound is determined according to the selected display mode (703), and if it is the timing for inputting a sound, a sound input process is performed (70).
4). Next, the timing for displaying on the television screen is determined according to the selected display mode (705), and if it is the timing for displaying, display processing is performed (70).
6). Next, it is determined whether the switch for changing the mode of the sound print display is pressed (707).
Return to 01 display mode selection. If not pressed,
Next, it is determined whether or not the switch for ending the tone print mode has been pressed (708), and if not pressed, 703.
Return to the sound input timing determination of. When the switch for terminating the voice print mode is pressed, the voice print mode is terminated.

FIG. 8 shows an example of the initialization program of the sound print processing control software using the television control microcomputer. First, the display selected in the display mode selection (701) of FIG. 7 is performed. Various parameters for setting are set (801), and the first write address to the memory 13 shown in FIG. 1 is initialized according to the display mode (802). Similarly, the initial setting of the address to be read first is performed according to the display screen (80
3). Next, f0 of the highest frequency band, for example, the center frequency of which is 24 kHz divided by the band-pass filter 12 of the sound input L channel or R channel is first digitalized by the A / D converter 532. The multiplexer 531 is initialized to convert it to data (804).

FIG. 9 shows an example of a sound input processing program of sound print processing control software using a television control microcomputer. The output of the A / D converter 532 which has been frequency-divided and converted into digital data is shown in FIG. Reading (901), a palette conversion process for converting color information corresponding to the amount of frequency-divided sound information is performed (9).
02). Next, the converted color information is written in the memory 13 (903), and the address to be written next is updated (90).
4).

FIG. 10 shows an example of a display processing program of the sound print processing control software using the television control microcomputer. Data converted into color information corresponding to the information amount of frequency-divided sound is shown in FIG. Memory 13
By reading from (101), the hardware circuit is activated, and the D / A converter 14 automatically converts it into a video signal, and the adding circuit 23 shown in FIG. It operates so that it is displayed on the television screen by adding it to the blue back image signal when no image is being viewed. In the display processing program, after reading the data from the memory 13, the address to be read next may be updated (102).

[0039]

According to the present invention, when only listening to music using a speaker of a widely-used home TV, the contents included in the music are converted into a TV receiving signal not intended to be viewed. By displaying a wide variety of images on the TV screen in synchronism with, the listener can be comforted and used as an interior.

[Brief description of drawings]

FIG. 1 is a block diagram of a sound print process of a television with a sound print display function according to an embodiment of the present invention.

FIG. 2 is a block diagram of the overall configuration of a television with a sound print display function according to an embodiment of the present invention.

FIG. 3 is a diagram showing a display example of a television with a sound print display function according to an embodiment of the present invention.

FIG. 4 is a diagram showing a display example of a television with a sound print display function according to an embodiment of the present invention.

FIG. 5 is a diagram showing a display example of a television with a sound print display function according to an embodiment of the present invention.

FIG. 6 is a diagram showing a display example of a television with a sound print display function according to an embodiment of the present invention.

FIG. 7 is a flowchart of a main program for signal processing according to an embodiment of the present invention.

FIG. 8 is a flowchart of an initialization program for signal processing according to an embodiment of the present invention.

FIG. 9 is a flowchart of a sound input processing program for signal processing according to an embodiment of the present invention.

FIG. 10 is a flowchart of a signal processing program according to an embodiment of the present invention.

FIG. 11 is a block diagram of a conventional example.

[Explanation of symbols]

11 ... Sound print processing circuit, 12 ... Band pass filter, 13 ...
Memory, 14 ... D / A converter, 53 ... Sound print processing control software, 531 ... Multiplexer, 532 ... A
/ D converter, 533 ... Palette conversion processing software, 534 ... Write timing generation processing software, 535 ... Read timing generation processing software.

Front page continuation (72) Inventor Nobuo Hamamoto 1-280, Higashi Koikekubo, Kokubunji, Tokyo Inside Hitachi Central Research Laboratory (72) Inventor Kenichi Mizuishi 1-280, East Koikekubo, Kokubunji, Tokyo Inside Hitachi Central Research Center Co., Ltd. (72) Inventor Tatsuto Suzuki 1-280, Higashi Koigokubo, Kokubunji, Tokyo, Central Research Laboratory, Hitachi, Ltd. (72) Inventor Masatoshi Otake 1-280, Higashi Koigokubo, Kokubunji, Tokyo Hitachi Central Research Laboratory, Ltd.

Claims (2)

[Claims] 1. A television with a sound print display function for displaying an image of a sound signal as a change in color on a display means, means for frequency-analyzing sound, and a display device for displaying the amount of information corresponding to the frequency component subjected to the frequency analysis. Means for converting display information corresponding to the display screen, means for storing the converted display information in a storage device, means for converting the stored information into a display signal, and the converted display signal A television with a sound print display function, characterized in that a means for displaying on a display is provided. 2. A television having a sound print display function for displaying an image of a sound signal as a color change on a display means, and means for frequency-analyzing sound, and a storage device for storing information corresponding to the frequency component subjected to the frequency analysis. A means for storing, a means for converting the stored information amount corresponding to the frequency component into display information corresponding to a display screen of a display device at the time of display, and a means for converting the converted display information into a display signal. And a means for displaying the converted display signal on a display device, a television with a sound print display function.