KR970057993A - How to get the number of bit allocations for audio data - Google Patents

How to get the number of bit allocations for audio data Download PDF

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Publication number
KR970057993A
KR970057993A KR1019950065744A KR19950065744A KR970057993A KR 970057993 A KR970057993 A KR 970057993A KR 1019950065744 A KR1019950065744 A KR 1019950065744A KR 19950065744 A KR19950065744 A KR 19950065744A KR 970057993 A KR970057993 A KR 970057993A
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South Korea
Prior art keywords
less
bit allocations
value setting
subband
satisfied
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KR1019950065744A
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Korean (ko)
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KR0180299B1 (en
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조준희
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김광호
삼성전자 주식회사
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

본 발명은 오디오 데이타의 비트할당의 수를 구하는 방법을 공개한다. 그 방법은 부밴드가 리미트가 26이하인지를 판단하는 제1판단단계, 만일 상기 부밴드 리미트가 26이하이면 부밴드 계수가 11이하인지를 판단하는 제2판단단계, 만일 상기 부밴드 계수가 11이하이면 비트할당의 수를 4로 하는 제1값 설정단계, 만일 상기 부밴드 계수가 11이하가 아니면, 23이하인지를 판단하는 제3판단단계, 만일 제3판단단계를 만족하면, 상기 비트할당의 수를 3으로 하는 제2값 설정단계, 만일 제3판단단계를 만족하지 않으면, 상기 비트할당의 수를 2로 설정하는 제3값 설정단계, 및 만일 제1판단단계의 결과를 만족하니 않으면, 상기 부밴드 계수가 2이하인지를 판단하고, 만족하면, 상기 제1값 설정단계로 진행하고, 만족하지 않으면, 상기 제2값 설정단계로 진행하는 제4판단단계로 이루어져 있다. 따라서, 본 발명의 비트할당의 수를 구하는 방법은 테이블사이의 유사성을 이용하여 비트할당의 수를 구할 수 있다.The present invention discloses a method for obtaining the number of bit allocations of audio data. The method includes a first judging step of determining whether a subband has a limit of 26 or less, a second judging step of judging whether a subband coefficient of 11 or less if the subband limit is 26 or less, and if the subband coefficient is 11 A first value setting step of setting the number of bit allocations to 4 if less, a third judging step of judging whether or not the subband coefficient is 23 or less, and if the third judging step is satisfied, the bit allocation A second value setting step of setting the number of times to 3, a third value setting step of setting the number of bit allocations to 2 if the third judgment step is not satisfied, and if the result of the first judgment step is not satisfied And a fourth determination step of determining whether the subband coefficient is 2 or less, and if satisfied, proceeds to the first value setting step, and if not, proceeds to the second value setting step. Therefore, in the method of obtaining the number of bit allocations of the present invention, the number of bit allocations can be obtained by using the similarity between the tables.

Description

오디오 데이타의 비트 할당의 수를 구하는 방법How to get the number of bit allocations for audio data

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

제1도는 본 발명의 오디오 데이타의 비트할당의 수를 구하는 방법을 설명하기 위한 흐름도이다.1 is a flowchart for explaining a method for obtaining the number of bit allocations of audio data of the present invention.

제2도는 본 발명의 오디오 데이타의 비트할당의 수를 구하는 회로의 불럭도이다.2 is a block diagram of a circuit for obtaining the number of bit allocations of audio data of the present invention.

Claims (1)

부밴드 리미트가 26이하인지를 판단하는 제1판단단계.The first judgment step of determining whether the subband limit is 26 or less. 만일 상기 부밴드 리미트가 26 이하이면 부밴드 계수가 11이하인지를 판단하는 제2판단단계; 만일 상기 부밴드 계수가 11이하이면 비트할당의 수를 4로 하는 제1값 설정단계; 만일 상기 부밴드 계수가 11이하가 아니면, 23이하인지를 판단하는 제3판단단계; 만일 제3판단단계를 만족하면, 상기 비트할당의 수를 3으로 하는 제2값 설정단계; 만일 제3판단단계 만족하지 않으면, 상기 비트할당의 수를 2로 설정하는 제3값 설정단계; 및 만일 제1판단단계의 결과를 만족하지 않으면, 상기 부밴드 계수가 2이하인지를 판단하고, 만족하면, 상기 제1값 설정단계로 진행하고, 만족하지 않으면, 상기 제2값 설정단계로 진행하는 제4판단단계를 구비한 것을 특징으로 하는 오디오 데이타의 비트 할당의 수를 구하는 방법.A second determination step of determining whether the subband coefficient is 11 or less if the subband limit is 26 or less; A first value setting step of setting the number of bit allocations to four if the subband coefficient is 11 or less; A third determination step of determining whether the subband coefficient is 23 or less, if it is not 11 or less; A second value setting step of setting the number of bit allocations to three if the third judging step is satisfied; A third value setting step of setting the number of bit allocations to two if the third determination step is not satisfied; And if the result of the first judging step is not satisfied, determines whether the subband coefficient is 2 or less, and if so, proceeds to the first value setting step, and if not, proceeds to the second value setting step. And a fourth judgment step of determining the number of bit allocations of the audio data. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950065744A 1995-12-29 1995-12-29 Method for getting the number of bit allocation of audio data KR0180299B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950065744A KR0180299B1 (en) 1995-12-29 1995-12-29 Method for getting the number of bit allocation of audio data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950065744A KR0180299B1 (en) 1995-12-29 1995-12-29 Method for getting the number of bit allocation of audio data

Publications (2)

Publication Number Publication Date
KR970057993A true KR970057993A (en) 1997-07-31
KR0180299B1 KR0180299B1 (en) 1999-05-01

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