BR0012542A - Quantificação de magnitude espectral para um codificador de fala - Google Patents
Quantificação de magnitude espectral para um codificador de falaInfo
- Publication number
- BR0012542A BR0012542A BR0012542-3A BR0012542A BR0012542A BR 0012542 A BR0012542 A BR 0012542A BR 0012542 A BR0012542 A BR 0012542A BR 0012542 A BR0012542 A BR 0012542A
- Authority
- BR
- Brazil
- Prior art keywords
- vector
- quantification
- gain factors
- speech encoder
- spectral magnitude
- Prior art date
Links
- 238000011002 quantification Methods 0.000 title abstract 3
- 230000003595 spectral effect Effects 0.000 title abstract 3
- 239000013598 vector Substances 0.000 abstract 6
- 238000010367 cloning Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Spectrometry And Color Measurement (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
"QUANTIFICAçãO DE MAGNITUDE ESPECTRAL PARA UM CODIFICADOR DE FALA". Um esquema de quantificação de amplitude para codificadores de fala de baixa taxa de bit inclui o primeiro passo de extrair um vetor de informação espectral a partir de um frame. A energia do vetor é normalizada (1301) para gerar fatores de ganho. Os fatores de ganho são quantificados diferencialmente vetorialmente. Os fatores de ganho normalizados (1301) são amostrados para recepção não uniformemente para gerar um vetor de dimensão fixada com elementos associados com um conjunto de bandas de freq³ência não uniformes. O vetor de dimensão fixada é dividido em dois ou mais sub vetores. Os sub vetores são quantificados diferencialmente, para melhor vantagem com um processo de clonagem harmónica.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/356,756 US6324505B1 (en) | 1999-07-19 | 1999-07-19 | Amplitude quantization scheme for low-bit-rate speech coders |
PCT/US2000/019602 WO2001006493A1 (en) | 1999-07-19 | 2000-07-18 | Spectral magnitude quantization for a speech coder |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0012542A true BR0012542A (pt) | 2002-11-26 |
BRPI0012542B1 BRPI0012542B1 (pt) | 2015-07-07 |
Family
ID=23402824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0012542-3A BRPI0012542B1 (pt) | 1999-07-19 | 2000-07-18 | Método para quantizar informações espectrais em um codificador de fala, bem como, codificador de fala |
Country Status (13)
Country | Link |
---|---|
US (1) | US6324505B1 (pt) |
EP (1) | EP1204969B1 (pt) |
JP (1) | JP4659314B2 (pt) |
KR (2) | KR100898323B1 (pt) |
CN (1) | CN1158647C (pt) |
AT (1) | ATE324653T1 (pt) |
AU (1) | AU6353600A (pt) |
BR (1) | BRPI0012542B1 (pt) |
CY (1) | CY1106119T1 (pt) |
DE (1) | DE60027573T2 (pt) |
ES (1) | ES2265958T3 (pt) |
HK (1) | HK1047817A1 (pt) |
WO (1) | WO2001006493A1 (pt) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
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US6456964B2 (en) * | 1998-12-21 | 2002-09-24 | Qualcomm, Incorporated | Encoding of periodic speech using prototype waveforms |
SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
US6493664B1 (en) * | 1999-04-05 | 2002-12-10 | Hughes Electronics Corporation | Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system |
KR100434538B1 (ko) * | 1999-11-17 | 2004-06-05 | 삼성전자주식회사 | 음성의 천이 구간 검출 장치, 그 방법 및 천이 구간의음성 합성 방법 |
US7260523B2 (en) * | 1999-12-21 | 2007-08-21 | Texas Instruments Incorporated | Sub-band speech coding system |
GB0005515D0 (en) * | 2000-03-08 | 2000-04-26 | Univ Glasgow | Improved vector quantization of images |
ES2287122T3 (es) * | 2000-04-24 | 2007-12-16 | Qualcomm Incorporated | Procedimiento y aparato para cuantificar de manera predictiva habla sonora. |
US6937979B2 (en) * | 2000-09-15 | 2005-08-30 | Mindspeed Technologies, Inc. | Coding based on spectral content of a speech signal |
US6947888B1 (en) * | 2000-10-17 | 2005-09-20 | Qualcomm Incorporated | Method and apparatus for high performance low bit-rate coding of unvoiced speech |
US7606703B2 (en) * | 2000-11-15 | 2009-10-20 | Texas Instruments Incorporated | Layered celp system and method with varying perceptual filter or short-term postfilter strengths |
US6931373B1 (en) * | 2001-02-13 | 2005-08-16 | Hughes Electronics Corporation | Prototype waveform phase modeling for a frequency domain interpolative speech codec system |
US6996523B1 (en) * | 2001-02-13 | 2006-02-07 | Hughes Electronics Corporation | Prototype waveform magnitude quantization for a frequency domain interpolative speech codec system |
US7013269B1 (en) * | 2001-02-13 | 2006-03-14 | Hughes Electronics Corporation | Voicing measure for a speech CODEC system |
WO2002097796A1 (en) * | 2001-05-28 | 2002-12-05 | Intel Corporation | Providing shorter uniform frame lengths in dynamic time warping for voice conversion |
KR100841096B1 (ko) * | 2002-10-14 | 2008-06-25 | 리얼네트웍스아시아퍼시픽 주식회사 | 음성 코덱에 대한 디지털 오디오 신호의 전처리 방법 |
US7272557B2 (en) * | 2003-05-01 | 2007-09-18 | Microsoft Corporation | Method and apparatus for quantizing model parameters |
EP1742202B1 (en) * | 2004-05-19 | 2008-05-07 | Matsushita Electric Industrial Co., Ltd. | Encoding device, decoding device, and method thereof |
EP1814438B8 (en) * | 2004-11-08 | 2009-04-01 | Koninklijke Philips Electronics N.V. | Safe identification and association of wireless sensors |
KR100851970B1 (ko) * | 2005-07-15 | 2008-08-12 | 삼성전자주식회사 | 오디오 신호의 중요주파수 성분 추출방법 및 장치와 이를이용한 저비트율 오디오 신호 부호화/복호화 방법 및 장치 |
TWI358056B (en) * | 2005-12-02 | 2012-02-11 | Qualcomm Inc | Systems, methods, and apparatus for frequency-doma |
KR101244310B1 (ko) * | 2006-06-21 | 2013-03-18 | 삼성전자주식회사 | 광대역 부호화 및 복호화 방법 및 장치 |
US9454974B2 (en) * | 2006-07-31 | 2016-09-27 | Qualcomm Incorporated | Systems, methods, and apparatus for gain factor limiting |
CA2663904C (en) * | 2006-10-10 | 2014-05-27 | Qualcomm Incorporated | Method and apparatus for encoding and decoding audio signals |
CN101483495B (zh) * | 2008-03-20 | 2012-02-15 | 华为技术有限公司 | 一种背景噪声生成方法以及噪声处理装置 |
US20090319263A1 (en) * | 2008-06-20 | 2009-12-24 | Qualcomm Incorporated | Coding of transitional speech frames for low-bit-rate applications |
US8768690B2 (en) * | 2008-06-20 | 2014-07-01 | Qualcomm Incorporated | Coding scheme selection for low-bit-rate applications |
US20090319261A1 (en) * | 2008-06-20 | 2009-12-24 | Qualcomm Incorporated | Coding of transitional speech frames for low-bit-rate applications |
CN101630509B (zh) * | 2008-07-14 | 2012-04-18 | 华为技术有限公司 | 一种编解码方法、装置及系统 |
KR101301245B1 (ko) * | 2008-12-22 | 2013-09-10 | 한국전자통신연구원 | 스펙트럼 계수의 서브대역 할당 방법 및 장치 |
DE112010003461B4 (de) * | 2009-08-28 | 2019-09-05 | International Business Machines Corporation | Vorrichtung zur Extraktion von Sprachmerkmalen, Verfahren zur Extraktion von Sprachmerkmalen und Programm zur Extraktion von Sprachmerkmalen |
WO2011048820A1 (ja) * | 2009-10-23 | 2011-04-28 | パナソニック株式会社 | 符号化装置、復号装置およびこれらの方法 |
US8990094B2 (en) * | 2010-09-13 | 2015-03-24 | Qualcomm Incorporated | Coding and decoding a transient frame |
US10049685B2 (en) | 2013-03-12 | 2018-08-14 | Aaware, Inc. | Integrated sensor-array processor |
US10204638B2 (en) | 2013-03-12 | 2019-02-12 | Aaware, Inc. | Integrated sensor-array processor |
US9443529B2 (en) | 2013-03-12 | 2016-09-13 | Aawtend, Inc. | Integrated sensor-array processor |
KR20150032390A (ko) * | 2013-09-16 | 2015-03-26 | 삼성전자주식회사 | 음성 명료도 향상을 위한 음성 신호 처리 장치 및 방법 |
ES2784620T3 (es) * | 2013-11-07 | 2020-09-29 | Ericsson Telefon Ab L M | Métodos y dispositivos para la segmentación de vectores para codificación |
US9628266B2 (en) * | 2014-02-26 | 2017-04-18 | Raytheon Bbn Technologies Corp. | System and method for encoding encrypted data for further processing |
JP6724932B2 (ja) * | 2018-01-11 | 2020-07-15 | ヤマハ株式会社 | 音声合成方法、音声合成システムおよびプログラム |
US20230290370A1 (en) * | 2022-03-08 | 2023-09-14 | Cisco Technology, Inc. | Audio automatic mixer with frequency weighting |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0815261B2 (ja) * | 1991-06-06 | 1996-02-14 | 松下電器産業株式会社 | 適応変換ベクトル量子化符号化法 |
BR9206143A (pt) * | 1991-06-11 | 1995-01-03 | Qualcomm Inc | Processos de compressão de final vocal e para codificação de taxa variável de quadros de entrada, aparelho para comprimir im sinal acústico em dados de taxa variável, codificador de prognóstico exitado por córdigo de taxa variável (CELP) e descodificador para descodificar quadros codificados |
JP3237178B2 (ja) * | 1992-03-18 | 2001-12-10 | ソニー株式会社 | 符号化方法及び復号化方法 |
US5884253A (en) | 1992-04-09 | 1999-03-16 | Lucent Technologies, Inc. | Prototype waveform speech coding with interpolation of pitch, pitch-period waveforms, and synthesis filter |
US5581653A (en) | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
US5517595A (en) | 1994-02-08 | 1996-05-14 | At&T Corp. | Decomposition in noise and periodic signal waveforms in waveform interpolation |
TW295747B (pt) * | 1994-06-13 | 1997-01-11 | Sony Co Ltd | |
JP3353266B2 (ja) * | 1996-02-22 | 2002-12-03 | 日本電信電話株式会社 | 音響信号変換符号化方法 |
-
1999
- 1999-07-19 US US09/356,756 patent/US6324505B1/en not_active Expired - Lifetime
-
2000
- 2000-07-18 CN CNB008130469A patent/CN1158647C/zh not_active Expired - Lifetime
- 2000-07-18 BR BRPI0012542-3A patent/BRPI0012542B1/pt active IP Right Grant
- 2000-07-18 KR KR1020027000727A patent/KR100898323B1/ko active IP Right Grant
- 2000-07-18 DE DE60027573T patent/DE60027573T2/de not_active Expired - Lifetime
- 2000-07-18 AU AU63536/00A patent/AU6353600A/en not_active Abandoned
- 2000-07-18 ES ES00950430T patent/ES2265958T3/es not_active Expired - Lifetime
- 2000-07-18 JP JP2001511668A patent/JP4659314B2/ja not_active Expired - Lifetime
- 2000-07-18 AT AT00950430T patent/ATE324653T1/de active
- 2000-07-18 EP EP00950430A patent/EP1204969B1/en not_active Expired - Lifetime
- 2000-07-18 KR KR1020077017220A patent/KR100898324B1/ko active IP Right Grant
- 2000-07-18 WO PCT/US2000/019602 patent/WO2001006493A1/en active IP Right Grant
-
2002
- 2002-12-30 HK HK02109402A patent/HK1047817A1/xx unknown
-
2006
- 2006-07-10 CY CY20061100958T patent/CY1106119T1/el unknown
Also Published As
Publication number | Publication date |
---|---|
ATE324653T1 (de) | 2006-05-15 |
WO2001006493A1 (en) | 2001-01-25 |
HK1047817A1 (en) | 2003-03-07 |
JP4659314B2 (ja) | 2011-03-30 |
AU6353600A (en) | 2001-02-05 |
US6324505B1 (en) | 2001-11-27 |
CY1106119T1 (el) | 2011-06-08 |
CN1375096A (zh) | 2002-10-16 |
BRPI0012542B1 (pt) | 2015-07-07 |
KR20020013965A (ko) | 2002-02-21 |
ES2265958T3 (es) | 2007-03-01 |
CN1158647C (zh) | 2004-07-21 |
EP1204969B1 (en) | 2006-04-26 |
KR100898323B1 (ko) | 2009-05-20 |
DE60027573T2 (de) | 2007-04-26 |
EP1204969A1 (en) | 2002-05-15 |
DE60027573D1 (de) | 2006-06-01 |
KR100898324B1 (ko) | 2009-05-20 |
KR20070087222A (ko) | 2007-08-27 |
JP2003505724A (ja) | 2003-02-12 |
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Legal Events
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B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
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