KR960028336A - Audio output level adjustment method per channel and its device - Google Patents

Audio output level adjustment method per channel and its device Download PDF

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Publication number
KR960028336A
KR960028336A KR1019940037957A KR19940037957A KR960028336A KR 960028336 A KR960028336 A KR 960028336A KR 1019940037957 A KR1019940037957 A KR 1019940037957A KR 19940037957 A KR19940037957 A KR 19940037957A KR 960028336 A KR960028336 A KR 960028336A
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KR
South Korea
Prior art keywords
channel
output level
voice
adjusting
value
Prior art date
Application number
KR1019940037957A
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Korean (ko)
Inventor
김웅규
Original Assignee
구자홍
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019940037957A priority Critical patent/KR960028336A/en
Publication of KR960028336A publication Critical patent/KR960028336A/en

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Abstract

본 발명은 채널별 음성 출력 레벨 조정 방법 및 장치에 관한 것으로, 현재 방송국에 따라 음성 신호의 변조도가 각기 다르므로 복조후의 음성 신호의 스윙 폭이 다르게 된다. 따라서, 종래에는 일정한 증폭율을 가진 음성 증폭기를 사용하는 경우 음성 신호의 스윙폭이 다르게 되면 음량이 달라지게 되어 채널 변경시마다 음성 신호의 출력 레벨이 달라지는 문제점이 있었다. 이러한 문제점을 해결하기 위하여 본 발명은 채널별 변조도와 사용자의 음성 출력 레벨값을 연산하여 해당 채널의 변조도에 대해 음성 증폭율을 보상하므로써 채널 변경시에도 일정한 음성 출력 레벨을 유지하도록 창안한 것으로, 본 발명은 채널이 변경될 때마다 해당 채널의 변조도에 대해 음성 출력 레벨값을 조정하므로써 볼륨 레벨을 조정함이 없이 일정한 음성 출력 레벨을 얻을 수 있다.The present invention relates to a method and apparatus for adjusting the audio output level for each channel. Since the modulation degree of the audio signal varies depending on the current broadcasting station, the swing width of the audio signal after demodulation is different. Therefore, when a voice amplifier having a constant amplification rate is used in the related art, when the swing width of the voice signal is different, the volume is changed, and thus, the output level of the voice signal is changed at every channel change. In order to solve this problem, the present invention has been devised to maintain a constant voice output level even when a channel is changed by calculating a modulation rate for each channel and a voice output level value of the user to compensate for the amplification rate of the corresponding channel. The invention can obtain a constant voice output level without adjusting the volume level by adjusting the voice output level value with respect to the modulation degree of the corresponding channel whenever the channel is changed.

Description

채널별 음성 출력 레벨 조정 방법 및 그 장치Audio output level adjustment method per channel and its device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 채널별 음성 출력 레벨 조정 장치의 블록도, 제4도는 제3도에서 레벨 조정부의 구성을 보인 예시도, 제5도는 본 발명의 음성 출력 레벨 조정을 위한 신호 흐름도.3 is a block diagram of the audio output level adjusting device for each channel of the present invention, FIG. 4 is an exemplary view showing the configuration of the level adjusting unit in FIG. 3, and FIG. 5 is a signal flow chart for adjusting the audio output level of the present invention.

Claims (2)

각 채널별 음성신호의 변조도를 저장하는 제1단계와, 채널 변경을 판별하는 제2단계와, 제2단계에서 채널 변경이 있으면 설정된 음성 레벨 조정값과 상기 음성 신호의 변조도에 따라 음성 증폭 레벨 조정값을 산출하는 제3단계와, 제3단계에서 산출한 음성 증폭 레벨 조정값으로 음성 출력 레벨을 조정하는 제4단계를 수행하는 것을 특징으로 하는 채널별 음성 출력 레벨 조정 방법.A first step of storing the modulation degree of the voice signal for each channel, a second step of determining the channel change, and adjusting the voice amplification level according to the set voice level adjustment value and the modulation degree of the voice signal if there is a channel change in the second step And a fourth step of adjusting a voice output level by using the third step of calculating a value and the voice amplification level adjustment value calculated in the third step. 튜너에서 선국한 채널의 음성 신호를 복조기에서 복원하면 음성 증폭기에서 레벨 조정값으로 증폭하는 음성 레벨 조정 장치에 있어서, 현재 음성 출력 레벨값을 저장하는 제1메모리 수단과, 각 채널별 음성 신호의 변조도를 저장하는 제2메모리 수단과, 상기 제1메모리 수단에 현재의 음성출력 레벨값을 일시 저장하고, 상기 제1메모리 수단에 현재의 음성 출력 레벨값을 일시 저장하고 채널 변경시 상기 제1, 제2 메모리 수단의 저장 데이터를 읽어 들이는 제어 수단과, 이 제어 수단을 통해 입력되는 채널의 변조도와 음성 출력 레벨값에 따라 음성 출력 레벨 조정값을 상기 음성 증폭기에 출력하는 레벨 조정 수단을 포함하여 구성한 것을 특징으로 하는 채널별 음성 출력 레벨 조정 장치.A voice level adjusting device for amplifying a voice signal of a channel tuned by a tuner in a demodulator, and amplifying the voice signal to a level adjustment value, comprising: first memory means for storing a current voice output level value and a modulation degree of a voice signal for each channel; Second memory means for storing a current voice output level value temporarily in the first memory means, and temporarily storing a current voice output level value in the first memory means and changing the channel when the channel is changed. Control means for reading the stored data of the two memory means, and a level adjusting means for outputting an audio output level adjustment value to the voice amplifier according to the modulation degree and the audio output level value of the channel input through the control means. Voice output level adjusting device for each channel, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940037957A 1994-12-28 1994-12-28 Audio output level adjustment method per channel and its device KR960028336A (en)

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Application Number Priority Date Filing Date Title
KR1019940037957A KR960028336A (en) 1994-12-28 1994-12-28 Audio output level adjustment method per channel and its device

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Application Number Priority Date Filing Date Title
KR1019940037957A KR960028336A (en) 1994-12-28 1994-12-28 Audio output level adjustment method per channel and its device

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KR960028336A true KR960028336A (en) 1996-07-22

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KR1019940037957A KR960028336A (en) 1994-12-28 1994-12-28 Audio output level adjustment method per channel and its device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100510479B1 (en) * 1999-02-02 2005-08-26 삼성전자주식회사 Video modulator having the function of controlling modulation index and modulation method thereof
KR20170001199U (en) 2016-09-23 2017-04-03 우경식 Apparatus for training muscles around center of abdomen and perineal region for improving sexual function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100510479B1 (en) * 1999-02-02 2005-08-26 삼성전자주식회사 Video modulator having the function of controlling modulation index and modulation method thereof
KR20170001199U (en) 2016-09-23 2017-04-03 우경식 Apparatus for training muscles around center of abdomen and perineal region for improving sexual function

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