KR20070087152A - 확산 벡터 발생기 및 확산 벡터 발생 방법 - Google Patents
확산 벡터 발생기 및 확산 벡터 발생 방법 Download PDFInfo
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- KR20070087152A KR20070087152A KR1020077016452A KR20077016452A KR20070087152A KR 20070087152 A KR20070087152 A KR 20070087152A KR 1020077016452 A KR1020077016452 A KR 1020077016452A KR 20077016452 A KR20077016452 A KR 20077016452A KR 20070087152 A KR20070087152 A KR 20070087152A
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
- G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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Abstract
Description
Claims (6)
- 음질을 개선하기 위해 음성 부호화기 또는 음성 복호기에 이용되는 확산 벡터 발생기에 있어서,벡터 축의 1 요소에 대해 부호부여된 단위 펄스를 갖는 펄스 벡터를 제공하는 펄스 벡터 제공부와,부호화 또는 복호화 처리를 시작하기 전에 사전 정의된 파형 세트로부터 확산 패턴을 결정하는 확산 패턴 결정부와,상기 펄스 벡터와 상기 결정된 확산 패턴을 컨볼루팅하여 확산된 벡터를 생성하는 확산 벡터 발생부를 포함하되,상기 파형의 길이는 서브프레임의 길이보다 짧은 확산 벡터 발생기.
- 제 1 항에 있어서,상기 파형의 적어도 한 파형의 형상은 펄스 형상인 확산 벡터 발생기.
- 제 1 항에 있어서,상기 확산 패턴 결정부는 음성 특성의 강함과 약함의 정도에 따라 확산 패턴 을 결정하는 확산 벡터 발생기.
- 음질을 개선하기 위해 음성 부호화기 또는 음성 복호기에 이용되는 확산 벡터를 발생하는 방법에 있어서,벡터 축의 1 요소에 대해 극성 부여된 단위 펄스를 갖는 펄스 벡터를 제공하고,부호화 또는 복호화 처리를 시작하기 전에 사전정의된 파형들의 세트로부터 확산 패턴을 결정하며,상기 펄스 벡터와 상기 결정된 확산 패턴을 컨볼루팅하여 확산 벡터를 생성하는것을 포함하되,상기 파형의 길이는 서브프레임의 길이보다 짧은 확산 벡터 발생 방법.
- 제 4 항에 있어서,상기 파형들중 적어도 한 파형의 형상은 펄스 형상인 확산 벡터 발생 방법.
- 제 4 항에 있어서,상기 확산 패턴 결정부는 음성 특성의 강함과 약함의 정도에 따라 확산 패턴을 결정하는 확산 벡터 발생 방법.
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KR1020087018800A KR100872246B1 (ko) | 1997-10-22 | 1998-10-22 | 직교화 탐색 방법 및 음성 부호화기 |
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Application Number | Priority Date | Filing Date | Title |
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JPJP-P-1997-00289412 | 1997-10-22 | ||
JP28941297A JP3235543B2 (ja) | 1997-10-22 | 1997-10-22 | 音声符号化/復号化装置 |
JP29513097A JP3175667B2 (ja) | 1997-10-28 | 1997-10-28 | ベクトル量子化法 |
JPJP-P-1997-00295130 | 1997-10-28 | ||
JP08571798A JP3174756B2 (ja) | 1998-03-31 | 1998-03-31 | 音源ベクトル生成装置及び音源ベクトル生成方法 |
JPJP-P-1998-00085717 | 1998-03-31 |
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KR1020057016117A Division KR20050090026A (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 생성 방법 |
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KR1020087018800A Division KR100872246B1 (ko) | 1997-10-22 | 1998-10-22 | 직교화 탐색 방법 및 음성 부호화기 |
KR1020087018788A Division KR100925084B1 (ko) | 1997-10-22 | 1998-10-22 | 음성 부호화기 및 음성 부호화 방법 |
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KR20070087152A true KR20070087152A (ko) | 2007-08-27 |
KR100938018B1 KR100938018B1 (ko) | 2010-01-21 |
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Family Applications (10)
Application Number | Title | Priority Date | Filing Date |
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KR1020077016451A KR100886062B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 펄스 벡터 생성 장치 및 방법 |
KR1020077016453A KR100938017B1 (ko) | 1997-10-22 | 1998-10-22 | 벡터 양자화 장치 및 방법 |
KR1019997005510A KR100651438B1 (ko) | 1997-10-22 | 1998-10-22 | 음성 부호화 장치, celp 음성 부호화 방법, 대수적 구조 음원의 직교화 탐색 방법 |
KR1020087016338A KR100900113B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 펄스 벡터 생성 장치 및 방법 |
KR10-2003-7013816A KR100527217B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 생성 방법, 확산 벡터 생성 장치, celp형 음성 복호화 방법 및 celp형 음성 복호화 장치 |
KR1020087019303A KR101029398B1 (ko) | 1997-10-22 | 1998-10-22 | 벡터 양자화 장치 및 방법 |
KR1020087018788A KR100925084B1 (ko) | 1997-10-22 | 1998-10-22 | 음성 부호화기 및 음성 부호화 방법 |
KR1020057016117A KR20050090026A (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 생성 방법 |
KR1020087018800A KR100872246B1 (ko) | 1997-10-22 | 1998-10-22 | 직교화 탐색 방법 및 음성 부호화기 |
KR1020077016452A KR100938018B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 발생기 및 확산 벡터 발생 방법 |
Family Applications Before (9)
Application Number | Title | Priority Date | Filing Date |
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KR1020077016451A KR100886062B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 펄스 벡터 생성 장치 및 방법 |
KR1020077016453A KR100938017B1 (ko) | 1997-10-22 | 1998-10-22 | 벡터 양자화 장치 및 방법 |
KR1019997005510A KR100651438B1 (ko) | 1997-10-22 | 1998-10-22 | 음성 부호화 장치, celp 음성 부호화 방법, 대수적 구조 음원의 직교화 탐색 방법 |
KR1020087016338A KR100900113B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 펄스 벡터 생성 장치 및 방법 |
KR10-2003-7013816A KR100527217B1 (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 생성 방법, 확산 벡터 생성 장치, celp형 음성 복호화 방법 및 celp형 음성 복호화 장치 |
KR1020087019303A KR101029398B1 (ko) | 1997-10-22 | 1998-10-22 | 벡터 양자화 장치 및 방법 |
KR1020087018788A KR100925084B1 (ko) | 1997-10-22 | 1998-10-22 | 음성 부호화기 및 음성 부호화 방법 |
KR1020057016117A KR20050090026A (ko) | 1997-10-22 | 1998-10-22 | 확산 벡터 생성 방법 |
KR1020087018800A KR100872246B1 (ko) | 1997-10-22 | 1998-10-22 | 직교화 탐색 방법 및 음성 부호화기 |
Country Status (8)
Country | Link |
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US (10) | US6415254B1 (ko) |
EP (12) | EP1752968B1 (ko) |
KR (10) | KR100886062B1 (ko) |
CN (1) | CN100349208C (ko) |
CA (3) | CA2684379C (ko) |
DE (8) | DE69836624T2 (ko) |
HK (10) | HK1025417A1 (ko) |
WO (1) | WO1999021174A1 (ko) |
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