ATE532175T1 - OPTIMIZING MP3 ENCODING WITH FULL DECODER COMPATIBILITY - Google Patents
OPTIMIZING MP3 ENCODING WITH FULL DECODER COMPATIBILITYInfo
- Publication number
- ATE532175T1 ATE532175T1 AT08170396T AT08170396T ATE532175T1 AT E532175 T1 ATE532175 T1 AT E532175T1 AT 08170396 T AT08170396 T AT 08170396T AT 08170396 T AT08170396 T AT 08170396T AT E532175 T1 ATE532175 T1 AT E532175T1
- Authority
- AT
- Austria
- Prior art keywords
- encoding
- optimizing
- determined
- step size
- quantization step
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 3
- 238000013139 quantization Methods 0.000 abstract 2
- 238000005457 optimization 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
- G10L19/035—Scalar quantisation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (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)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
An iterative rate-distortion optimization algorithm for MPEG I/II Layer-3 (MP3) encoding based on the method of Lagrangian multipliers. Generally, an iterative method is performed such that a global quantization step size is determined while scale factors are fixed, and thereafter the scale factors are determined while the global quantization step size is fixed. This is repeated until a calculated rate-distortion cost is within a predetermined threshold. The methods are demonstrated to be computationally efficient and the resulting bit stream is fully standard compatible.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08170396A EP2192577B1 (en) | 2008-12-01 | 2008-12-01 | Optimization of MP3 encoding with complete decoder compatibility |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE532175T1 true ATE532175T1 (en) | 2011-11-15 |
Family
ID=40568705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT08170396T ATE532175T1 (en) | 2008-12-01 | 2008-12-01 | OPTIMIZING MP3 ENCODING WITH FULL DECODER COMPATIBILITY |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2192577B1 (en) |
AT (1) | ATE532175T1 (en) |
CA (1) | CA2686264C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013146895A1 (en) * | 2012-03-28 | 2013-10-03 | 日本電信電話株式会社 | Encoding method, encoding device, decoding method, decoding device, program, and recording medium |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG136836A1 (en) * | 2006-04-28 | 2007-11-29 | St Microelectronics Asia | Adaptive rate control algorithm for low complexity aac encoding |
-
2008
- 2008-12-01 EP EP08170396A patent/EP2192577B1/en active Active
- 2008-12-01 AT AT08170396T patent/ATE532175T1/en active
-
2009
- 2009-11-24 CA CA2686264A patent/CA2686264C/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2686264C (en) | 2015-01-27 |
CA2686264A1 (en) | 2010-06-01 |
EP2192577B1 (en) | 2011-11-02 |
EP2192577A1 (en) | 2010-06-02 |
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