TR200806843T1 - Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kod çözümü - Google Patents

Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kod çözümü

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Publication number
TR200806843T1
TR200806843T1 TR2008/06843T TR200806843T TR200806843T1 TR 200806843 T1 TR200806843 T1 TR 200806843T1 TR 2008/06843 T TR2008/06843 T TR 2008/06843T TR 200806843 T TR200806843 T TR 200806843T TR 200806843 T1 TR200806843 T1 TR 200806843T1
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TR
Turkey
Prior art keywords
components
encoding
filter bank
hierarchical filter
scalable
Prior art date
Application number
TR2008/06843T
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English (en)
Inventor
V. Shmunk Dmitry
J. Beaton Richard
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Dts (Bvi) Limited
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Publication date
Application filed by Dts (Bvi) Limited filed Critical Dts (Bvi) Limited
Publication of TR200806843T1 publication Critical patent/TR200806843T1/tr

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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
    • 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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • 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
    • H03M7/28—Programmable structures, i.e. where the code converter contains apparatus which is operator-changeable to modify the conversion process
    • 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
    • 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
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/04—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
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L25/03—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

Abstract

Keyfi olarak saptanmış bir veri hızına sahip ölçeklenmiş bir bit akımı oluşturmak için seçilebilen bir ana bit akımı oluşturmak amacıyla ses giriş sinyallerini sıkıştırmak için bir usul açıklanmaktadır. Hiyerarşik bir filtre bankası (2100) giriş sinyalini kod çözücünün hem tonal bileşenleri (2106) hem de kalıntı bileşenlerini (2117) verimli bir şekilde ayıklayabildiği çok çözünürlüklü zaman-frekans temsiline ayrıştırır. Bileşenler aynı maskeleme işlevine veya farklı psikoakustik kriterlere göre derecelendirilir ve nicemlenir. Seçilen tonal bileşenler çok kanallı sese genişletilmiş diferansiyel kodlama kullanılarak uygun şekilde kodlanır. Kalıntı bileşenlerini oluşturan zaman-örnek ve ölçek faktörü bileşenleri çok kanallı sese genişletilmiş ortak kanal kodlaması (JCC) kullanılarak kodlanır. Bir kod çözücü, ölçeklenmiş bit akımındaki tonal bileşenler ve kalıntı bileşenlerinden ses sinyallerini yeniden oluşturmak için bir ters hiyerarşik filtre bankası kullanır.
TR2008/06843T 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kod çözümü TR200806843T1 (tr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69155805P 2005-06-17 2005-06-17
US11/452,001 US7548853B2 (en) 2005-06-17 2006-06-12 Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding

Publications (1)

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TR200806843T1 true TR200806843T1 (tr) 2008-10-21

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TR2007/08666T TR200708666T1 (tr) 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölceklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kodcözümü.
TR2008/06842T TR200806842T1 (tr) 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kodçözümü.
TR2008/06843T TR200806843T1 (tr) 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kod çözümü

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TR2007/08666T TR200708666T1 (tr) 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölceklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kodcözümü.
TR2008/06842T TR200806842T1 (tr) 2005-06-17 2006-06-16 Hiyerarşik bir filtre bankası ve çok kanallı ortak kodlama kullanımına dayanan, ölçeklenebilir, sıkıştırılmış ses bit akımı ve kodlama-kodçözümü.

Country Status (15)

Country Link
US (1) US7548853B2 (tr)
EP (2) EP2479750B1 (tr)
JP (2) JP5164834B2 (tr)
KR (1) KR101325339B1 (tr)
CN (1) CN101199121B (tr)
AU (1) AU2006332046B2 (tr)
CA (2) CA2853987C (tr)
ES (1) ES2717606T3 (tr)
HK (2) HK1117655A1 (tr)
IL (1) IL187402A (tr)
NZ (3) NZ593517A (tr)
PL (2) PL2479750T3 (tr)
RU (1) RU2402160C2 (tr)
TR (3) TR200708666T1 (tr)
WO (1) WO2007074401A2 (tr)

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