KR0141238B1 - 디지탈 오디오 데이타의 부호화 방법 및 장치 - Google Patents
디지탈 오디오 데이타의 부호화 방법 및 장치Info
- Publication number
- KR0141238B1 KR0141238B1 KR1019930013467A KR930013467A KR0141238B1 KR 0141238 B1 KR0141238 B1 KR 0141238B1 KR 1019930013467 A KR1019930013467 A KR 1019930013467A KR 930013467 A KR930013467 A KR 930013467A KR 0141238 B1 KR0141238 B1 KR 0141238B1
- Authority
- KR
- South Korea
- Prior art keywords
- data
- time zone
- digital audio
- time
- orthogonal transformation
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract description 13
- 230000009466 transformation Effects 0.000 claims description 25
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000013139 quantization Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000014121 butter Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011426 transformation method Methods 0.000 description 1
Classifications
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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
- G10L19/04—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 predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/124—Quantisation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (2)
- 디지탈 오디오 데이타를 주파수대역에 따라 저역데이타와 고역데이타로 대역분할해서 분리하는 과정:상기 분리된 저역데이타를 시간대별로 반분하고 각 시간대의 데이타들의 에너지차에 따라서 각 시간대의 데이타를 순차적으로 직교변환하거나 동시에 직교변환하는 과정: 상기 분리된 고역데이타를 시간대별로 반분하고 각 시간대의 데이타들의 에너지차에 따라서 각 시간대의 데이타를 순차적으로 직교변환하거나 동시에 직교변환하는 과정:상기 각 대역별로 직교변환된 데이타들을 각각 양자화하는 과정: 상기 각 양자화된 데이타들을 선택적으로 출력하는 과정을 구비한 디지탈 오디오 데이타의 부호화 방법.
- 디지탈 오디오 데이타를 입력하여 저역 및 고역으로 대역분할해서 출력하는 대역분할필터:상기 대역분할필터로부터 저역데이타를 입력받아서 시간대별의 데이타들의 에너지차에 따라서 시간대별로 순차로 직교변환하거나 동시에 직교변환하는 제1시적응 직교변환수단:상기 대역분할필터로부터 고역데이타를 입력받아서 시간대별의 데이타들의 에너지차에 따라서 시간대별로 순차로 직교변환하거나 동시에 직교변환하는 제2시적응 직교변환수단:상기 제1및제2시적응 직교변환수단들의 출력데이타를 각각 입력받아서 양자화하는 제1 및 제2양자화수단: 및 상기 제1 및 제2양자화수단으로부터 각각 양자화된 데이타를 입력하여 선택적으로 출력하는 선택수단을 구비한 디지탈 오디오 데이타의 부호화 장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930013467A KR0141238B1 (ko) | 1993-07-16 | 1993-07-16 | 디지탈 오디오 데이타의 부호화 방법 및 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930013467A KR0141238B1 (ko) | 1993-07-16 | 1993-07-16 | 디지탈 오디오 데이타의 부호화 방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950004981A KR950004981A (ko) | 1995-02-18 |
KR0141238B1 true KR0141238B1 (ko) | 1998-06-15 |
Family
ID=19359432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930013467A KR0141238B1 (ko) | 1993-07-16 | 1993-07-16 | 디지탈 오디오 데이타의 부호화 방법 및 장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0141238B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10477345B2 (en) | 2016-10-03 | 2019-11-12 | J2B2, Llc | Systems and methods for identifying parties based on coordinating identifiers |
-
1993
- 1993-07-16 KR KR1019930013467A patent/KR0141238B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10477345B2 (en) | 2016-10-03 | 2019-11-12 | J2B2, Llc | Systems and methods for identifying parties based on coordinating identifiers |
Also Published As
Publication number | Publication date |
---|---|
KR950004981A (ko) | 1995-02-18 |
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