HK1251073A1 - 用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法 - Google Patents

用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法

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Publication number
HK1251073A1
HK1251073A1 HK18110291.5A HK18110291A HK1251073A1 HK 1251073 A1 HK1251073 A1 HK 1251073A1 HK 18110291 A HK18110291 A HK 18110291A HK 1251073 A1 HK1251073 A1 HK 1251073A1
Authority
HK
Hong Kong
Prior art keywords
generating
subband values
audio
audio samples
domain audio
Prior art date
Application number
HK18110291.5A
Other languages
English (en)
Inventor
Markus Schnell
Manfred Lutzky
Markus Lohwasser
Markus Schmidt
Marc Gayer
Michael Mellar
Bernd Edler
Markus Multrus
Gerald Schuller
Ralf Geiger
Bernhard Grill
Original Assignee
Fraunhofer Ges Forschung
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.)
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of HK1251073A1 publication Critical patent/HK1251073A1/zh

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    • 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
    • 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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
HK18110291.5A 2006-10-25 2018-08-10 用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法 HK1251073A1 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86295406P 2006-10-25 2006-10-25

Publications (1)

Publication Number Publication Date
HK1251073A1 true HK1251073A1 (zh) 2019-01-18

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Family Applications (2)

Application Number Title Priority Date Filing Date
HK08112967.6A HK1119824A1 (en) 2006-10-25 2008-11-27 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
HK18110291.5A HK1251073A1 (zh) 2006-10-25 2018-08-10 用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK08112967.6A HK1119824A1 (en) 2006-10-25 2008-11-27 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

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EP (10) EP4325723A3 (zh)
JP (2) JP5083779B2 (zh)
KR (2) KR101056253B1 (zh)
CN (2) CN101405791B (zh)
AR (2) AR063400A1 (zh)
AT (1) ATE435480T1 (zh)
AU (2) AU2007308416B2 (zh)
BR (2) BRPI0716315A2 (zh)
CA (2) CA2667505C (zh)
DE (1) DE602007001460D1 (zh)
DK (2) DK3848928T3 (zh)
ES (6) ES2328187T3 (zh)
FI (1) FI3848928T3 (zh)
HK (2) HK1119824A1 (zh)
HU (1) HUE064482T2 (zh)
IL (2) IL193786A (zh)
MX (2) MX2009004477A (zh)
MY (2) MY148715A (zh)
NO (3) NO341567B1 (zh)
PL (6) PL4207189T3 (zh)
PT (5) PT2109098T (zh)
RU (2) RU2420815C2 (zh)
TW (2) TWI355649B (zh)
WO (2) WO2008049590A1 (zh)
ZA (2) ZA200810308B (zh)

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