CY1114289T1 - Διακωδικοποιηση ηχου χαμηλης περιπλοκοτητας - Google Patents
Διακωδικοποιηση ηχου χαμηλης περιπλοκοτηταςInfo
- Publication number
- CY1114289T1 CY1114289T1 CY20131100641T CY131100641T CY1114289T1 CY 1114289 T1 CY1114289 T1 CY 1114289T1 CY 20131100641 T CY20131100641 T CY 20131100641T CY 131100641 T CY131100641 T CY 131100641T CY 1114289 T1 CY1114289 T1 CY 1114289T1
- Authority
- CY
- Cyprus
- Prior art keywords
- quantized
- scaled
- scaled values
- scale factors
- scale
- Prior art date
Links
- 238000012790 confirmation Methods 0.000 title 1
- 230000003595 spectral effect Effects 0.000 abstract 7
- 230000005236 sound signal Effects 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
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Stereophonic System (AREA)
- Electrophonic Musical Instruments (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Αποκαλύπτεται μία μέθοδος για την διακωδικοποίηση κωδικοποιημένης πληροφορίας ήχου, η οποία περιλαμβάνει: την πρόσληψη ενός πρώτου κωδικοποιημένου σήματος, το οποίο μεταφέρει φασματικές πληροφορίες και κωδικοποιημένες φασματικές πληροφορίες, όπου οι κβαντισμένες φασματικές πληροφορίες περιλαμβάνουν πρώτες κβαντισμένες διαβαθμισμένες τιμές και πρώτους παράγοντες διαβάθμισης, οι οποίοι αναπαριστούν φασματικά συστατικά ενός ηχητικού σήματος, όπου κάθε πρώτος παράγοντας διαβάθμισης είναι συσχετισμένος με μία ή περισσότερες πρώτες κβαντισμένες διαβαθμισμένες τιμές, με κάθε πρώτη κβαντισμένη διαβαθμισμένη τιμή να είναι διαβαθμισμένη σύμφωνα με τον συσχετισμένο με αυτήν πρώτο παράγοντα διαβάθμισης, και κάθε πρώτη κβαντισμένη διαβαθμισμένη τιμή και συσχετισμένος πρώτος παράγοντας διαβάθμισης αναπαριστούν ένα φασματικό συστατικό' την άντληση δεύτερων παραγόντων διαβάθμισης· την μετακίνηση των bits σύμφωνα με μία πρώτη διαδικασία μετακίνησης bit σε απόκριση σε μία ή περισσότερες παραμέτρους πρώτου ελέγχου και την επίτευξη πρώτων αποκβαντισμένων διαβαθμισμένων τιμών από τις πρώτες κβαντισμένες διαβαθμισμένες τιμές μέσω του αποκβαντισμού, σύμφωνα με τις αναλύσεις κβαντισμού που βασίζονται σε αριθμούς bits που είναι μετακινημένοι από την πρώτη διαδικασία μετακίνησης bit· την μετακίνηση των bits σύμφωνα με μία δεύτερη διαδικασία μετακίνησης bit σε απόκριση σε μία ή περισσότερες παραμέτρους δεύτερου ελέγχου και την επίτευξη δεύτερων κβαντισμένων διαβαθμισμένων τιμών μέσω του κβαντισμού των αποκβαντισμένου διαβαθμισμένων τιμών με τη χρήση αναλύσεων κβαντισμού που βασίζονται σε αριθμούς bits που είναι μετακινημένοι από τη
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44593103P | 2003-02-06 | 2003-02-06 | |
US10/458,798 US7318027B2 (en) | 2003-02-06 | 2003-06-09 | Conversion of synthesized spectral components for encoding and low-complexity transcoding |
EP20090012227 EP2136361B1 (en) | 2003-02-06 | 2004-01-30 | Low-complexity audio transcoding |
Publications (1)
Publication Number | Publication Date |
---|---|
CY1114289T1 true CY1114289T1 (el) | 2016-08-31 |
Family
ID=32871965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CY20131100641T CY1114289T1 (el) | 2003-02-06 | 2013-07-26 | Διακωδικοποιηση ηχου χαμηλης περιπλοκοτητας |
Country Status (20)
Country | Link |
---|---|
US (1) | US7318027B2 (el) |
EP (3) | EP2136361B1 (el) |
JP (2) | JP4673834B2 (el) |
KR (1) | KR100992081B1 (el) |
CN (2) | CN101661750B (el) |
AT (2) | ATE382180T1 (el) |
AU (1) | AU2004211163B2 (el) |
CA (2) | CA2776988C (el) |
CY (1) | CY1114289T1 (el) |
DE (2) | DE602004010885T2 (el) |
DK (1) | DK1590801T3 (el) |
ES (2) | ES2421713T3 (el) |
HK (2) | HK1080596B (el) |
IL (1) | IL169442A (el) |
MX (1) | MXPA05008318A (el) |
MY (1) | MY142955A (el) |
PL (2) | PL378175A1 (el) |
SG (1) | SG144743A1 (el) |
TW (2) | TWI350107B (el) |
WO (1) | WO2004072957A2 (el) |
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2003
- 2003-06-09 US US10/458,798 patent/US7318027B2/en active Active
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2004
- 2004-01-15 TW TW093101043A patent/TWI350107B/zh not_active IP Right Cessation
- 2004-01-15 TW TW099129455A patent/TWI352973B/zh not_active IP Right Cessation
- 2004-01-30 EP EP20090012227 patent/EP2136361B1/en not_active Expired - Lifetime
- 2004-01-30 CA CA2776988A patent/CA2776988C/en not_active Expired - Lifetime
- 2004-01-30 DE DE200460010885 patent/DE602004010885T2/de not_active Expired - Lifetime
- 2004-01-30 PL PL378175A patent/PL378175A1/pl not_active IP Right Cessation
- 2004-01-30 CA CA 2512866 patent/CA2512866C/en not_active Expired - Lifetime
- 2004-01-30 JP JP2006503173A patent/JP4673834B2/ja not_active Expired - Lifetime
- 2004-01-30 PL PL397127A patent/PL397127A1/pl not_active Application Discontinuation
- 2004-01-30 KR KR1020057014508A patent/KR100992081B1/ko active IP Right Grant
- 2004-01-30 AT AT04707005T patent/ATE382180T1/de active
- 2004-01-30 CN CN200910164435.9A patent/CN101661750B/zh not_active Expired - Lifetime
- 2004-01-30 MX MXPA05008318A patent/MXPA05008318A/es active IP Right Grant
- 2004-01-30 ES ES09012227T patent/ES2421713T3/es not_active Expired - Lifetime
- 2004-01-30 CN CN200480003666A patent/CN100589181C/zh not_active Expired - Lifetime
- 2004-01-30 DE DE200460024139 patent/DE602004024139D1/de not_active Expired - Lifetime
- 2004-01-30 AU AU2004211163A patent/AU2004211163B2/en not_active Expired
- 2004-01-30 EP EP20070015219 patent/EP1852852B1/en not_active Expired - Lifetime
- 2004-01-30 DK DK04707005T patent/DK1590801T3/da active
- 2004-01-30 AT AT07015219T patent/ATE448540T1/de not_active IP Right Cessation
- 2004-01-30 ES ES04707005T patent/ES2297376T3/es not_active Expired - Lifetime
- 2004-01-30 WO PCT/US2004/002605 patent/WO2004072957A2/en active IP Right Grant
- 2004-01-30 SG SG200604994-4A patent/SG144743A1/en unknown
- 2004-01-30 EP EP20040707005 patent/EP1590801B1/en not_active Expired - Lifetime
- 2004-02-05 MY MYPI20040348A patent/MY142955A/en unknown
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2005
- 2005-06-28 IL IL169442A patent/IL169442A/en active IP Right Grant
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2006
- 2006-01-06 HK HK06100259.0A patent/HK1080596B/zh not_active IP Right Cessation
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2007
- 2007-11-29 HK HK07113012.0A patent/HK1107607A1/xx not_active IP Right Cessation
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2010
- 2010-05-17 JP JP2010112800A patent/JP4880053B2/ja not_active Expired - Lifetime
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2013
- 2013-07-26 CY CY20131100641T patent/CY1114289T1/el unknown
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