KR200167004Y1 - Background music processing device for television - Google Patents

Abstract

The present invention receives a broadcast signal in which a main voice signal of a first language zone including a back sound and a sub-audio signal of a second language zone corresponding to the main voice signal are mixed with an image signal, and optionally, an arbitrary language zone. The present invention relates to a multiplex television receiver capable of listening to a voice signal corresponding to the audio signal, and in particular, the main audio signal and the sub audio signal are separated from the sound signal detected from the received broadcast signal, When the language range of the voice signal to be expressed is selected, but the sub-voice signal is selected, a back sound processing device is provided for detecting a house sound from the main voice signal, mixing the sub-sound signal, and mixing the sub-sound signal to the outside voice signal. In the prior art, if you want to listen to the voice of a second language, that is, a foreign language, there is no back sound. Dunn is a problem can be solved.

Description

Back sound processing device for housewife voice conversion in voice multiple television receiver

The present invention relates to a housewife voice conversion processing method in a multiplex television receiver. In particular, when a user selects and listens to a subaudio signal, a back sound existing only in the main audio signal is read and mixed with the subaudio signal. The present invention relates to a back sound processing method and apparatus therefor for switching housewife voices in a multiplex television receiver.

In general, as the society becomes more specialized, diversified and informatized, it is noticeable that a great deal of effort is put into the orientation of language ability. At the same time, modern people are under a lot of stress for a number of reasons, so they have a strong desire for language learning and a relatively small number of people who invest their time and effort.

Therefore, in order to meet the needs of modern people who want to get a chance to learn language without being stressed, TV stations broadcast additional languages other than those used by their own people in certain programs (e.g. movies). A technique has been proposed to allow this to be used selectively.

The television receiver proposed by this technique is often referred to as an audio multiplex television receiver (hereinafter referred to as an audio multiplex TV), and its configuration is shown by the operation of the key input unit 220 as shown in FIG. The broadcast signal of the channel selected by the microcomputer 200 for controlling the overall operation of the TV, the memory 240 for storing data to be processed by the microcomputer 200, and the preset voltage output from the microcomputer 200. Tuner 100 receiving an antenna from an antenna ANT, an image processor 300 for processing an image signal of a broadcast signal received by the tuner 100, and an image signal output from the image processor 300. A number for deflecting the vertical synchronizing signal and the horizontal synchronizing signal of the image signal displayed on the screen of the CRT 400 by the image amplifying unit 320 to amplify and the vertical / horizontal synchronizing signal processed by the image processor 300. And a horizontal sync processor 340, a CRT 400 for receiving an image signal output from the image amplifier 320, and displaying the same on a screen; and processing a voice signal of a broadcast signal received by the tuner 100. A voice processor 500, a main voice processor 520 that separates and processes only a main voice signal (for example, Korean) from the voice signal processed by the voice processor 500, and a voice processed by the voice processor 500 Amplification of the sub-voice processor 540 for separating and processing only a sub-voice signal (eg, a foreign language) from the signal, and the main / sub-audio signals processed by the main audio processor 520 and the sub-audio processor 540 to a predetermined level. And a voice amplifier for selecting and outputting only one of the signals input according to a control signal, a speaker 600 for receiving and outputting a voice signal output from the voice amplifier 560 and the voice processor. Processed in 500 Select a state / sub-audio by the property data to a control signal of the microcomputer 200, and is largely composed of a negative selection unit 580 for providing a control signal for a selection operation on the audio amplification unit 560.

In the general voice multiplex TV configured as described above, when a viewer selects a channel to be watched by manipulating the key input unit 220, the microcomputer 200 recognizes the generated channel voltage and applies it to the tuner 100. . Accordingly, the tuner 100 receives the broadcast signal of the channel selected by the tuning voltage generated by the microcomputer 200 from the free space through the antenna ANT and broadcasts it to the image processor 300 and the audio processor 500. Input the signal.

Accordingly, the image processor 300 processes only the image signal from the broadcast signal input from the tuner 100 by the control signal of the microcomputer 200 and supplies the processed image signal to the image amplifier 320. Since the image amplifier 320 amplifies the image signal to a level that can be displayed on the screen of the CRT 400 and supplies the image signal to the CRT 400, the image signal transmitted from the broadcasting station to the free space is displayed on the screen. To watch the video signal.

In this case, the vertical / horizontal synchronization processor 340 deflects the image signal displayed on the screen of the CRT 400 in the vertical direction and the horizontal direction based on the vertical synchronization signal and the horizontal synchronization signal processed by the image processor 300.

In addition, the voice processor 500 processes a signal from which the video signal is excluded from the broadcast signal input from the tuner 100, divides the signal into a main audio signal and a sub-audio signal, and then processes the signal into a corresponding main audio processor 520 and a sub-audio. Provided to the voice processing unit 540.

That is, the main voice processor 520 separates and processes only the main voice signal (for example, Korean) from the voice signal processed by the voice processor 500 of the front end and inputs it to the voice amplifier 560, and the sub-voice processor ( The voice signal 540 separates only a negative voice signal (eg, a foreign language) from the voice signal processed by the voice processor 500 and inputs it to the voice amplifier 560.

In this case, the voice amplifier 560 selects one of the voice signals provided to the main audio processor 520 and the sub-audio processor 540 according to the selection control signal output from the voice selector 580 and selects the selected voice. The signal is amplified and expressed through the speaker 600.

However, in the TV station, the main voice signal has a back sound so that the general unspecified majority is satisfied enough, but the sub voice signal does not have a back sound because it is intended for a few viewers who have a foreign language's curiosity and learning.

Therefore, when the user selects and listens to the sub-audio signal, the back sound does not exist, and thus, viewers lose understanding and reality of the image, and thus, the number of times of listening to the sub-audio signal is reduced. There is a problem that the meaning to send the loss is lost.

In particular, it has been suggested that the viewer may be wasting unnecessary resources such as losing interest in language learning through TV.

An object of the present invention for solving the problems described above is to listen to the sub-audio signal by reading the back sound existing only in the main audio signal to listen to the sub-audio signal to select and listen to the sub-audio signal The present invention provides a back sound processing apparatus for converting a housewife voice in a voice multiple television receiver for augmentation.

1 is a block diagram illustrating a conventional voice multiple television receiver.

2 is an exemplary block diagram of a voice multiple television receiver according to the present invention;

<Description of the code | symbol about the principal part of drawing>

ANT: Antenna 100: Tuner

200: microcomputer 220: key input unit

240: memory 300: image processor

320: image amplification unit 340: vertical / horizontal synchronization processing unit

400: CRT500: Voice Processor

520: main audio processing unit 540: sub-audio processing unit

560: voice amplifier 580: voice selector

600: Speaker 700: A / D Converter

720: nurturing filter unit 740: D / A converter

760: synthesis unit

A feature of the present invention for achieving the above object is a broadcast in which a main audio signal of a first language zone including a back sound and a sub-audio signal of a second language zone corresponding to the main audio signal are mixed together with a video signal. An apparatus for expressing a voice signal converted according to a user's selection in an external multiplex television receiver capable of receiving a signal and selectively listening to a voice signal corresponding to a certain language range, wherein the device is present in a currently received broadcast signal. Voice separation means for separating the main audio signal and the sub-audio signal from the audio signal, a fostering filtering means for receiving the main audio signal output from the voice separation means, removing data on the rearing, and outputting back sound data; The back sound data output from the fostering filtering means and the sub-audio signal output from the voice separating means are Audio selection means for receiving and mixing, and a signal selection output for selecting any one of the audio data output from the audio mixing means and the main audio signal output from the voice separation means according to the control signal according to the user's selection To include means.

An additional feature of the present invention for achieving the above object is to further include an A / D converter that receives the main audio signal output from the voice separation means is converted into a digital signal and provided to the fostering filtering means.

An additional feature of the present invention for achieving the above object is to further include a D / A converter that receives the signal output from the fostering filtering means is converted into an analog signal and provided to the audio mixing means.

As an additional feature of the present invention for achieving the above object, the fostering filtering means extracts a feature of a digital signal input by using a specific signal processing technique and then, according to a preset specification, the information according to the growth and the information according to the back sound. To separate the information and output only the information corresponding to the back sound.

Referring to the operation of the apparatus according to the present invention according to the above features, after separating the main audio signal and the sub-audio signal from the sound signal detected from the received broadcast signal of the main signal and the sub-audio signal of the externally expressed When the language range is selected, but the sub-audio signal is selected, the back sound is detected from the main audio signal, mixed with the sub-audio signal, and displayed.

Hereinafter, a preferred embodiment according to the present invention with reference to the accompanying drawings as follows.

2 is an exemplary block diagram of a multiplex television receiver according to the present invention, which is controlled by the microcomputer 200 and the microcomputer 200 by controlling the operation of the key input unit 220. A memory 240 storing data, a tuner 100 receiving a broadcast signal of a channel selected by the tuning voltage output from the microcomputer 200 from the antenna ANT, and received by the tuner 100. An image processor 300 for processing an image signal of a broadcast signal, an image amplifier 320 for amplifying an image signal output from the image processor 300, and vertical / horizontal synchronization processed by the image processor 300. A vertical / horizontal synchronization processor 340 for deflecting the vertical synchronization signal and the horizontal synchronization signal of the image signal displayed on the CRT 400 screen by the signal, and the image signal output from the image amplifier 320 Displayed on Only the main audio signal (eg, Korean) in the CRT 400, the voice processor 500 for processing a voice signal of the broadcast signal received by the tuner 100, and the voice signal processed by the voice processor 500. A main audio processor 520 for separating and processing a sub-audio processor 540 for separating and processing only a sub-audio signal (for example, a foreign language) from the voice signal processed by the voice processor 500, and the main audio processor ( A / D converter 700 for receiving a voice signal output from the 520 and converting the digital signal to a digital signal, and for removing data corresponding to human development from the digital data output from the A / D converter 700. A filter unit 720, a D / A converter 740 for converting data output from the fostering filter 720 into an analog signal, data output from the D / A converter 740, and the sub-negative processing unit Input and output the data output from (540) By amplifying and outputting the data output from the synthesizing unit 760 and the main audio processing unit 520 and the synthesizing unit 760 to a predetermined level, and selecting and outputting only one of the input signals according to a control signal. The amplification unit 560, the speaker 600 for receiving and outputting a voice signal output from the voice amplification unit 560, and the voice data processed by the voice processor 500 are added to the control signal of the microcomputer 200. And a voice selector 580 that selects a main / sub voice and provides a control signal for a selection operation to the voice amplifier 560.

In the voice multiple television receiver according to the present invention configured as described above, the overall configuration and its operation are the same as those described in FIG. 1, and thus, the description thereof is omitted. When switching the housewife voice signal, which is the main point of the present invention, the back sound is negative. Only operations related to the process of processing will be described below.

In addition, among the configuration of the audio multi-TV receiver shown in FIG. 2, a new addition to the conventional configuration for applying the back sound processing method for housewife voice conversion according to the present invention is the A / D converter 700 and The growth filter unit 720, the D / A converter 740, and the synthesis unit 760.

The reason why the A / D converter 700 is provided in the above configuration is that when the rear sound and the rear sound are to be separated from the main audio signal, the sound signal having the same frequency band as the rear of the back sound is removed during the rearing process in the analog signal state. It can be eliminated, and because it can not be removed, it is provided as an initial step for DSP processing.

Accordingly, since the signal output from the fostering filter unit 720 is a digital signal, a D / A converter 740 is additionally provided to convert the signal to the analog signal again.

The cultivation filter 720 which receives the signal output from the A / D converter 700 and removes the cultivation and then outputs it to the D / A converter 740 is a digital filter having a digital signal processing function. After extracting the characteristics of the input digital signal using signal processing techniques such as conversion, the information according to the rearing and the information according to the rearing are separated according to a preset specification, and only the information corresponding to the back sound is output.

In addition, the synthesis unit 760 is a signal processing from the main audio processing unit 520 to the A / D converter 700 to compensate for the delay time caused by a series of processes in which the back sound is separated and output from the main audio signal and After delaying the signal output from the sub-voice processor 540 by the delay time generated in the transfer process, the two input signals are matched and mixed.

The above description was a description of the configuration reason for the newly added configuration to apply the present invention.

Hereinafter, referring to the correlation according to the operation between the configuration and the existing configuration, when the viewer selects a channel to be watched by operating the key input unit 220, the microcomputer 200 that recognizes this generates a corresponding tuning voltage. To the tuner 100. Accordingly, the tuner 100 receives the broadcast signal of the channel selected by the tuning voltage generated by the microcomputer 200 from the free space through the antenna ANT and broadcasts it to the image processor 300 and the audio processor 500. Input the signal.

Accordingly, the image processor 300 processes only the image signal from the broadcast signal input from the tuner 100 by the control signal of the microcomputer 200 and supplies the processed image signal to the image amplifier 320. Since the image amplifier 320 amplifies the image signal to a level that can be displayed on the screen of the CRT 400 and supplies the image signal to the CRT 400, the image signal transmitted from the broadcasting station to the free space is displayed on the screen. To watch the video signal.

In addition, the voice processor 500 processes a signal from which a video signal is excluded from a broadcast signal input from the tuner 100. When the currently tuned broadcast is a voice multicast broadcast signal, the voice processor 500 receives the main audio signal and the sub-audio signal. After separating into the main audio processing unit 520 and the sub-audio processing unit 540, respectively.

That is, the main voice processor 520 receives a main voice signal (eg, Korean) that is processed and output by the voice processor 500 of the front end, performs a signal signal processing, and outputs the sub-voice processor 540. Like the main audio processor 520 described above, a sub-audio (for example, foreign language) signal is input to perform a series of signal processing and output.

At this time, the main audio signal output from the main voice processing unit 520 is provided to the voice amplifier 560 and is delivered to the A / D converter 700, the main input is input from the A / D converter 700 The voice signal is converted into a digital signal and then transmitted to the nurturing filter unit 720.

The rearing filter unit 720 extracts the characteristics of the input digital signal using a signal processing technique such as a Fourier transform, and then separates the information according to the growth and the information based on the back sound according to a preset specification to correspond to the back sound. Only information is output. Thereafter, the back sound information output from the growth filter unit 720 is converted into an analog signal through the D / A converter 740, and the converted back sound information of the analog state is provided to the synthesis unit 760.

In addition, the synthesizer 760 receives a sub-audio signal output from the sub-voice processing unit 540 in addition to the back sound information output from the D / A converter 740, and the back sound is separated from the main audio signal. A delay of a predetermined time occurs in a series of outputs.

Therefore, the synthesizer 760 delays the signal output from the sub-voice processor 540 by a delay time generated during signal processing and transmission from the main voice processor 520 to the A / D converter 700. After the two signals are mixed and output, the sub-audio signal and the back sound information are matched and output.

The signal output from the synthesizer 760 is provided to the voice amplifier 560, and the voice amplifier 560 controls the main voice processor 520 according to the selection control signal output from the voice selector 580. And select one of the voice signals provided to the sub-voice processor 540 and amplify the selected voice signal to be displayed through the speaker 600.

As the selection control signal output from the voice selector 580, the user operates the key input unit 220 to select a voice signal to be listened to among the main audio signal and the sub-audio signal, and according to the control of the microcomputer 200. Is performed.

Typically, in the normal state, the main audio signal is to be listened to, so that the voice amplifier 560 amplifies and outputs the voice signal output from the main voice processor 520, and the user requests the voice signal switching. When the control signal is received through the voice selector 580, the signal output from the synthesizer 760 is amplified and output.

At this time, when the sub-audio signal is listened to, the matching state of the video signal and the audio signal is slightly changed, but there is no great feeling for the viewer.

If the present invention provides a method for processing the back sound when switching the housewife voice in the voice multi-TV receiver according to the present invention and the device there is no conventional sound in the prior art to listen to the second language, that is, foreign language Problems that halted interest can be solved.

Claims (4)

Receives a broadcast signal in which the main audio signal of the first language zone including the back sound and the sub-audio signal of the second language zone corresponding to the main audio signal are mixed with the video signal, and optionally corresponds to an arbitrary language zone. An apparatus for expressing an externally converted audio signal according to a user's selection in an audio multiple television receiver capable of listening to an audio signal, Voice separation means for separating the main audio signal and the sub audio signal from the audio signal present in the currently received broadcast signal; Fostering filtering means for receiving the main voice signal outputted from the voice separating means and removing data on fostering to output back sound data; Audio mixing means for receiving and mixing the back sound data output from the fostering filtering means and the sub-audio signal output from the voice separating means; And And a signal selection output means for selecting any one of audio data output from the audio mixing means and a main audio signal output from the voice separation means according to a control signal according to a user's selection, and outputting it to the outside. Back sound processing device for housewife voice switching in multiple television receivers. The housewife voice of claim 1, further comprising an A / D converter which receives the main voice signal output from the voice separating means, converts the digital voice signal into a digital signal, and provides the same to the fostering filtering means. Back sound processing unit at the time of switching. The housewife of claim 1 or 2, further comprising a D / A converter which receives a signal output from the fostering filtering means, converts the signal into an analog signal, and provides the same to the audio mixing means. Back sound processing device for voice switching. The method according to claim 3, wherein the growth filtering means extracts the characteristics of the input digital signal using a specific signal processing technique, and then separates the information according to the growth and the information based on the back sound according to a preset specification and corresponds to the back sound. A back sound processing apparatus for housewife voice switching in an audio multiple television receiver, characterized by outputting only a bay.