KR19990004332A - Main / second audio output level control method in voice multiple television receiver - Google Patents

Abstract

The present invention receives a broadcast signal in which a main audio signal of a first language zone and a sub-audio signal of a second language zone corresponding to the main audio signal are mixed with a video signal and selectively listens to a voice signal corresponding to an arbitrary language zone. The present invention relates to a method of outputting an audio signal externally output from a multiplex television receiver, the method comprising: separating a main audio signal and a sub audio signal from an audio signal detected from a received broadcast signal; A second process of selecting a language zone of an externally expressed voice signal among the separated main audio signal and the sub-audio signal; and determining the magnitude of the output level of the plurality of signals when a plurality of voice signals are simultaneously selected through the second process. According to the determination of step 3 and the third step, the signal determined at the large output level is compared to the signal determined at the small output level. By the method of controlling the primary and secondary audio output level in a multiplex television receiver comprising a fourth step of amplifying and outputting a predetermined value, there is an effect of preventing performance degradation due to mutual interference of a plurality of audio signals.

Description

A method for controlling the main / sub audio output level in an audio multiple television receiver.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main / sub voice conversion processing method in an audio multiple television receiver. In particular, the present invention relates to mutual interference of a plurality of audio signals by outputting a predetermined time delay of a predetermined voice signal when listening to main / sub audio signals simultaneously. The present invention relates to a method for controlling a primary / second audio output level in an audio multiple television receiver capable of preventing performance deterioration.

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 the opportunity of language learning without being stressed, TV stations broadcast additional languages other than those used by their own people in certain programs (e.g. movies). Techniques have 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. The audio signal of the broadcast signal received by the tuner 100 and the CRT 400 which receives the image signal output from the image amplifying unit 320 and the vertical / horizontal synchronization processor 340 and the image amplifier 320 are processed. A main processor 520 for separating and processing only a main audio signal (for example, Korean) from the voice signal processed by the voice processor 500, and the voice processor 500 A sub-voice processor 540 which separates and processes only a sub-voice signal (eg, a foreign language) from a voice signal, and the main / sub-audio signal processed by the main audio processor 520 and the sub-audio processor 540 to a predetermined level. Amplifying and outputting the audio amplifier 560 for selecting only one of the input signals or a plurality of signals according to a control signal, and outputting the audio signal output from the voice amplifier 560. Speaker 600 and phase The voice amplification unit 560 is largely composed of a voice switch unit 580 for providing a control signal for the selection operation.

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 tuner voltage generated by the microcomputer 200 from the free space through the antenna ANT to the image processor 300 and the audio processor 500. Input the broadcast 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 and outputs a signal in which a video signal is excluded from a broadcast signal input from the tuner 100.

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 the input to the voice amplifier 560, and the sub-voice processor 540. ) Separates only the sub-audio (eg, foreign language) signal from the voice signal processed by the voice processor 500 of the front end, and inputs the negative signal to the voice amplifier 560.

In this case, the voice amplifier 560 selects one of a plurality of voice signals provided to the main audio processor 520 and the sub-audio processor 540 according to a selection control signal output from the voice switch unit 580 or a plurality of voices. A signal is selected and the selected voice signal is amplified and expressed through the speaker 600. When the user selects the main audio signal output mode, the negative audio signal output mode or the multiple signal simultaneous output mode through the key input unit 220, the signal input to the voice switch unit 580 is output accordingly. Is a signal.

However, when a plurality of voice signals are simultaneously output as described above, the plurality of voice signals are output with similar frequencies and magnitudes, and thus, correlate with each other, resulting in deterioration of output characteristics of all the voice signals. There is a problem in that it is not easy to listen to the overtone at the same time to give a discomfort to the user.

An object of the present invention for solving the above-described problems is to output a predetermined time delayed predetermined voice signal for a certain time when simultaneously listening to the main / secondary voice signal to prevent performance degradation due to mutual interference of a plurality of voice signals. The present invention provides a method for controlling a primary / secondary audio output level in a multiplex television receiver.

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

2 is a block diagram of a voice multiple television receiver according to the present invention.

Explanation of symbols for main parts of the drawings

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: CRT 500: Voice Processor

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

560: voice amplifier 580: voice switch unit

600: speaker 700a, 700b: output level control means

A feature of the present invention for achieving the above object is to selectively receive a broadcast signal in which a main audio signal of a first language zone and a sub-audio signal of a second language zone corresponding to the main audio signal are mixed with a video signal. A method of outputting an audio signal externally output from an audio multiplex television receiver capable of listening to a speech signal corresponding to a language region, the method comprising: separating a main audio signal and a sub-audio signal from an audio signal detected in a received broadcast signal; A first process, a second process of selecting a language range of an externally expressed voice signal among the main audio signal and the sub-audio signal separated in the process; and outputting a plurality of signals when a plurality of voice signals are simultaneously selected through the second process The third process of determining the magnitude of the level, and the signal determined at the large output level in accordance with the determination of the third process is small. And a fourth process of amplifying and outputting a predetermined value relative to the signal determined as the output level.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

2 is an exemplary block diagram of a voice multi-TV receiver according to the present invention, in which a user is provided with a plurality of keys according to various operation modes (channel, volume, voice output mode, etc.) of a user, and a predetermined operation is performed in the operation mode. A key input unit 220 for selecting a mode, a microcomputer 200 for controlling overall operation of the TV by the operation of the key input unit 220, and a memory for storing data to be processed in the microcomputer 200 240 and a tuner 100 for receiving a broadcast signal of a channel selected by the tuner voltage output from the microcomputer 200 from the antenna ANT, and a video signal of the broadcast signal received by the tuner 100. The image processor 300 to process the image, the image amplifier 320 for amplifying the image signal output from the image processor 300, and the vertical / horizontal synchronization signal 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 screen of the CRT 400 and the image signal output from the image amplifier 320 are received and displayed on the screen. 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 that separates and processes the sub-audio processor 540 that separates and processes only a sub-audio signal (eg, a foreign language) from the voice signal processed by the voice processor 500, and the microcomputer 200. An output level controller 700 for controlling the output level of the audio signal input by the operation control signal output from the controller to a predetermined level, and data output from the main audio processor 520 and the sub-audio processor 540 at a predetermined level. Amplifying and outputting, but according to the control signal to select any one of the input signal or output a plurality of voice amplification unit 560, and the speaker 600 for receiving and outputting the audio signal output from the voice amplification unit 560 And a voice switch unit 580 that provides a control signal for a selection operation to the voice amplifier 560.

The operation related to the selection delay processing process of the housewife's audio signal in the voice multiple television receiver according to the present invention configured as described above will be described below.

The output level control unit 700 outputs an output level control unit 700a for amplifying a signal input to the main audio processing unit 520 according to an input operation control signal, and a signal input to the sub audio processing unit 540 with a predetermined magnitude. Output level control means 700b for amplifying.

The key input unit 220 is provided with a key for selecting an audio output mode of the television so that a signal corresponding to the selected audio output mode is output, and the audio output mode includes a main audio output mode, a sub audio output mode, and a plurality of voices. The plurality of audio signal simultaneous output modes are subdivided into a main audio selection mode, a sub-audio selection mode, and an original sound output mode.

When the user selects a channel to be watched through the key input unit 220, the microcomputer 200 that recognizes the channel is generated and applied 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 view the video signal.

In addition, the voice processor 500 processes a signal from which a video signal is excluded from the broadcast signal input from the tuner 100. When the currently tuned broadcast is a voice multicast, the input signal is converted into a main audio signal and a sub-audio signal. After separation, it is provided to the corresponding 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 from the voice processor 500 of the front end, performs a signal processing, and outputs the sub-audio processor 540. Like the main audio processor 520 described above, a sub-audio (for example, a foreign language) signal is input to perform a series of signal processing and output.

The signal output from the main audio processor 520 and the sub-audio processor 540 is sent to the voice amplifier 560 for selectively amplifying a predetermined voice by an operation control signal input from the voice switch unit 580. The signal amplified by the voice amplifier 560 is output through the speaker 600.

In this case, after the user selects a plurality of voice signal simultaneous output modes through the key input unit 220 and selects a main voice selection mode, the microcomputer 200 applies an operation signal to the output level control means 700a to provide the main voice. By amplifying the output level of the signal by a predetermined magnitude, the output level of the main audio signal and the sub-audio signal is generated by a predetermined value, and when the user selects the sub-audio selection mode, the microcomputer amplifies the sub-audio signal. An operation signal is applied to the control means 700b so that the sub-voice becomes a predetermined level larger than the main voice.

Therefore, since the main voice and the sub-audio output from the speaker 600 are output with a predetermined output level difference, the plurality of voices are clearly output without causing interference.

Providing the method for controlling the main / minor audio output level in the audio multi-TV receiver according to the present invention operating as described above does not cause the audio output deterioration due to correlation of a plurality of audio signals generated in the prior art. Satisfaction with listening is improved.

Claims (1)

The main audio signal of the first language zone and the sub-audio signal of the second language zone corresponding to the main audio signal may receive a broadcast signal mixed with the video signal to selectively listen to an audio signal corresponding to an arbitrary language zone. In the audio multiple television receiver to output the audio signal to the outside, A first step of separating the main audio signal and the sub audio signal from the sound signal detected from the received broadcast signal; A second process of selecting a language range of an externally expressed voice signal among the main audio signal and the sub-audio signal separated in the above process; A third step of determining the magnitude of the output level of the plurality of signals when the plurality of voice signals are simultaneously selected through the second process; And According to the determination of the third process, the signal determined at the large output level includes a fourth process of amplifying and outputting a predetermined value compared to the signal determined at the small output level. How to control output level.