KR970008844A - Volume automatic adjustment device and method - Google Patents
Volume automatic adjustment device and method Download PDFInfo
- Publication number
- KR970008844A KR970008844A KR1019950022872A KR19950022872A KR970008844A KR 970008844 A KR970008844 A KR 970008844A KR 1019950022872 A KR1019950022872 A KR 1019950022872A KR 19950022872 A KR19950022872 A KR 19950022872A KR 970008844 A KR970008844 A KR 970008844A
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- KR
- South Korea
- Prior art keywords
- volume
- volume level
- level
- signal
- outputting
- Prior art date
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- Control Of Amplification And Gain Control (AREA)
Abstract
본 발명은 음량을 주위의 환경에 따라 적응적으로 최적의 볼륨 레벨로 자동으로 조절하여 출력하는 음량 자동 조절 장치 및 방법에 관한 것으로서, 이를 위하여, 마이크부(40)와; 상기 마이크부(40)로부터의 오디오 신호에서 소정 대역의 신호를 추출하는 밴드 패스 필터(50)와; 상기 밴드 패스 필터(50)로부터의 오디오 신호를 증폭하는 증폭부(60)와; 상기 증폭부(60)로부터의 오디오 신호를 적분하여 직류 레벨 신호로 출력하는 적분기(70)와; 상기 적분기(70)로부터의 신호를 디지탈 신호를 변환하여 출력하는 A/D변환부(80)와; 현재 출력되는 음량 레벨과 상기 A/D변환부(80)로부터의 신호 레벨에 의거하여 적응적으로 음량 레벨을 조절하기 위한 볼륨 데이타를 출력하는 마이컴(20)과; 출력되는 오디오 음량을 상기 마이컴(20)으로부터의 볼륨 데이타에 대응하는 음량으로 조절하는 음량 조절부(30)를 포함하는 음량 자동 조절 장치와, 검출되어 인가되는 주위 음량레벨에서 현재의 볼륨 레벨에 대응하는 기설정된 출력 음량 레벨을 감하는 단계와; 상기 단계에서 계산된 차감 음량 레벨과 현재 볼륨 레벨에 대응하여 기설정된 임계 음량과 비교하는 단계와; 상기 비교 단계에서 계산된 차감 음량 레벨이 기설정된 임계 음량보다 클 경우 큰 음량 레벨 만큼 현재의 볼륨 레벨을 올리는 단계를 포함하는 음량 자동 조절 방법을 제공한다.The present invention relates to an automatic volume control device and method for automatically adjusting and outputting the volume to an optimal volume level according to the surrounding environment, for this purpose, the microphone unit 40; A band pass filter (50) for extracting a signal of a predetermined band from the audio signal from the microphone (40); An amplifier 60 for amplifying the audio signal from the band pass filter 50; An integrator (70) for integrating the audio signal from the amplifier (60) and outputting it as a DC level signal; An A / D converter 80 for converting and outputting a signal from the integrator 70; A microcomputer 20 for outputting volume data for adaptively adjusting the volume level based on the currently output volume level and the signal level from the A / D converter 80; A volume automatic control device including a volume control unit 30 for adjusting the output audio volume to a volume corresponding to volume data from the microcomputer 20, and corresponding to a current volume level at a detected ambient volume level Subtracting a predetermined output volume level; Comparing the subtracted volume level calculated in the step with a predetermined threshold volume corresponding to the current volume level; When the subtraction volume level calculated in the comparing step is greater than the predetermined threshold volume, the present invention provides a method for automatically adjusting the volume including increasing the current volume level by a large volume level.
따라서, 오디오 및 영상 기기 주위의 소음 정도에 따라 음량의 크기를 보상하여 소음 정도에 따라 수시로 볼륨 레벨을 자동으로 가변하여 사용자에게 편리함을 제공할 수 있는 효과가 있다.Therefore, the volume level is compensated according to the degree of noise around the audio and video equipment, and thus the volume level is automatically changed from time to time to provide convenience to the user.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 음량 자동 조절 장치에 대한 블럭도, 제2도는 본 발명에 따른 음량 자동 조절 과정을 도시한 흐름도.1 is a block diagram of an automatic volume control apparatus according to the present invention, Figure 2 is a flow chart showing a volume automatic adjustment process according to the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950022872A KR970008844A (en) | 1995-07-28 | 1995-07-28 | Volume automatic adjustment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950022872A KR970008844A (en) | 1995-07-28 | 1995-07-28 | Volume automatic adjustment device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR970008844A true KR970008844A (en) | 1997-02-24 |
Family
ID=66540765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950022872A KR970008844A (en) | 1995-07-28 | 1995-07-28 | Volume automatic adjustment device and method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970008844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921708B1 (en) * | 2002-10-28 | 2009-10-15 | 엘지전자 주식회사 | A stereophonic sound system |
-
1995
- 1995-07-28 KR KR1019950022872A patent/KR970008844A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921708B1 (en) * | 2002-10-28 | 2009-10-15 | 엘지전자 주식회사 | A stereophonic sound system |
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| Date | Code | Title | Description |
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| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |