KR950010626A - The adaptive encoding and decoding apparatus of sound signal - Google Patents
The adaptive encoding and decoding apparatus of sound signal Download PDFInfo
- Publication number
- KR950010626A KR950010626A KR1019930019588A KR930019588A KR950010626A KR 950010626 A KR950010626 A KR 950010626A KR 1019930019588 A KR1019930019588 A KR 1019930019588A KR 930019588 A KR930019588 A KR 930019588A KR 950010626 A KR950010626 A KR 950010626A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
본 발명은 음향신호를 전송 또는 저장하기 위해 부호화하고 이를 다시 재생하기 위해 복호화하는 장치에 관한 것으로, 특히 음향신호의 각 서브밴드가 포함하는 정보의 중요도, 즉 음향신호의 에너지분포에 따라 비트할당의 우선순위를 설정하고 심리음향모델에 의해 인간의 청각특성에 가장 근사하게 비트할당을 하여 양자화함으로써, 음향신호의 부호화 및 복호화 시에 중요한 정보를 포함하는 서브밴드에 적응적으로 많은 비트를 할당하여 부호화하게 되어 고정된 비트수로 부호화함에 따른 양자화오차를최소화 하고 인간의 청각특성에 가깝게 음향신호를 재현할 수 있는 음향신호의 적응적 부호화 및 복호화장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for encoding or decoding a sound signal for transmission or storage, and to decode the sound signal. By setting priorities and quantizing by most closely assigning bits to human auditory characteristics using psychoacoustic models, encoding and assigning a large number of bits adaptively to subbands that contain important information in encoding and decoding acoustic signals The present invention relates to an adaptive encoding and decoding apparatus for an acoustic signal capable of minimizing a quantization error caused by encoding a fixed number of bits and reproducing an acoustic signal close to a human auditory characteristic.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1(가)도는 종래의 음향신호 부호화장치의 일 예를 나타내는 블록도, 제1(나)도는 종래의 음향신호 복호화장치의 일 예를 나타내는 블록도.1A is a block diagram showing an example of a conventional sound signal encoding apparatus, and FIG. 1 (B) is a block diagram showing an example of a conventional sound signal decoding apparatus.
제2(가)도는 본 발명에 따른 음향신호의 적응적 부호화장치에 대한 일 실시예를 나타내는 블록도, 제2(나)도는 본 발명에 따른 음향신호의 적응적 복호화장치에 대한 일 실시예를 나타내는 블록도.FIG. 2A is a block diagram showing an embodiment of an apparatus for adaptively encoding an audio signal, and FIG. 2B is an embodiment of an adaptive decoding apparatus for an audio signal according to the present invention. Block diagram showing.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019930019588A KR0144841B1 (en) | 1993-09-24 | 1993-09-24 | The adaptive encoding and decoding apparatus of sound signal |
Applications Claiming Priority (1)
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KR1019930019588A KR0144841B1 (en) | 1993-09-24 | 1993-09-24 | The adaptive encoding and decoding apparatus of sound signal |
Publications (2)
Publication Number | Publication Date |
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KR950010626A true KR950010626A (en) | 1995-04-28 |
KR0144841B1 KR0144841B1 (en) | 1998-07-15 |
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KR1019930019588A KR0144841B1 (en) | 1993-09-24 | 1993-09-24 | The adaptive encoding and decoding apparatus of sound signal |
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KR (1) | KR0144841B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009026143A1 (en) * | 2007-08-16 | 2009-02-26 | Neural Audio Corporation | Audio processing for compressed digital television |
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1993
- 1993-09-24 KR KR1019930019588A patent/KR0144841B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009026143A1 (en) * | 2007-08-16 | 2009-02-26 | Neural Audio Corporation | Audio processing for compressed digital television |
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Publication number | Publication date |
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KR0144841B1 (en) | 1998-07-15 |
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