DE60303689D1 - Audiodecodierungsvorrichtung und -verfahren - Google Patents

Audiodecodierungsvorrichtung und -verfahren

Info

Publication number
DE60303689D1
DE60303689D1 DE60303689T DE60303689T DE60303689D1 DE 60303689 D1 DE60303689 D1 DE 60303689D1 DE 60303689 T DE60303689 T DE 60303689T DE 60303689 T DE60303689 T DE 60303689T DE 60303689 D1 DE60303689 D1 DE 60303689D1
Authority
DE
Germany
Prior art keywords
aliasing
high frequency
subband signals
frequency subband
occurrence
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60303689T
Other languages
English (en)
Other versions
DE60303689T2 (de
Inventor
Naoya Tanaka
Osamu Shimada
Mineo Tsushima
Takeshi Norimatsu
Kok Seng Chong
Kim Hann Kuah
Sua Hong Neo
Toshiyuki Nomura
Yuichiro Takamizawa
Masahiro Serizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
NEC Corp
Original Assignee
NEC Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Matsushita Electric Industrial Co Ltd filed Critical NEC Corp
Application granted granted Critical
Publication of DE60303689D1 publication Critical patent/DE60303689D1/de
Publication of DE60303689T2 publication Critical patent/DE60303689T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
DE60303689T 2002-09-19 2003-09-11 Audiodecodierungsvorrichtung und -verfahren Expired - Lifetime DE60303689T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2002273557 2002-09-19
JP2002273557 2002-09-19
JP2002283722 2002-09-27
JP2002283722 2002-09-27
JP2002300490 2002-10-15
JP2002300490 2002-10-15
PCT/JP2003/011601 WO2004027368A1 (en) 2002-09-19 2003-09-11 Audio decoding apparatus and method

Publications (2)

Publication Number Publication Date
DE60303689D1 true DE60303689D1 (de) 2006-04-27
DE60303689T2 DE60303689T2 (de) 2006-10-19

Family

ID=32034073

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60303689T Expired - Lifetime DE60303689T2 (de) 2002-09-19 2003-09-11 Audiodecodierungsvorrichtung und -verfahren

Country Status (14)

Country Link
US (1) US7069212B2 (de)
EP (1) EP1543307B1 (de)
JP (1) JP3646939B1 (de)
KR (1) KR100728428B1 (de)
CN (1) CN100492492C (de)
AT (1) ATE318405T1 (de)
AU (1) AU2003260958A1 (de)
BR (1) BRPI0306434B1 (de)
CA (1) CA2469674C (de)
DE (1) DE60303689T2 (de)
ES (1) ES2259158T3 (de)
HK (1) HK1074877A1 (de)
TW (1) TWI313856B (de)
WO (1) WO2004027368A1 (de)

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CN100492492C (zh) 2009-05-27
KR20050042075A (ko) 2005-05-04
BR0306434A (pt) 2004-10-26
ES2259158T3 (es) 2006-09-16
CN1606687A (zh) 2005-04-13
DE60303689T2 (de) 2006-10-19
AU2003260958A1 (en) 2004-04-08
CA2469674C (en) 2012-04-24
EP1543307A1 (de) 2005-06-22
AU2003260958A8 (en) 2004-04-08
JP3646939B1 (ja) 2005-05-11
TWI313856B (en) 2009-08-21
US20050149339A1 (en) 2005-07-07
HK1074877A1 (en) 2005-11-25
JP2005520219A (ja) 2005-07-07
CA2469674A1 (en) 2004-04-01
WO2004027368A1 (en) 2004-04-01
KR100728428B1 (ko) 2007-06-13
BRPI0306434B1 (pt) 2018-06-12
ATE318405T1 (de) 2006-03-15
US7069212B2 (en) 2006-06-27
TW200407846A (en) 2004-05-16
EP1543307B1 (de) 2006-02-22

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