TW200707406A - Method and apparatus for encoding and decoding an audio signal - Google Patents
Method and apparatus for encoding and decoding an audio signalInfo
- Publication number
- TW200707406A TW200707406A TW095124070A TW95124070A TW200707406A TW 200707406 A TW200707406 A TW 200707406A TW 095124070 A TW095124070 A TW 095124070A TW 95124070 A TW95124070 A TW 95124070A TW 200707406 A TW200707406 A TW 200707406A
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- spatial information
- audio
- header
- audio signal
- Prior art date
Links
Landscapes
- Time-Division Multiplex Systems (AREA)
- Stereophonic System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
A method and apparatus for encoding and decoding an audio signal are provided. The present invention includes receiving an audio signal including an audio descriptor, recognizing that the audio signal includes a downmix signal and a spatial information signal using the audio descriptor, and converting the downmix signal to a multi-channel signal using the spatial information signal, wherein the spatial information signal includes a header each a preset temporal or spatial interval, and the spatial information signal includes a header each a preset temporal or spatial interval thereby the header can be selectively included in the spatial information signal and if the header is plurally included in the spatial information signal, it is able to decode spatial information in case of reproducing the audio signal from a random point.
Applications Claiming Priority (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69500705P | 2005-06-30 | 2005-06-30 | |
US71211905P | 2005-08-30 | 2005-08-30 | |
US71920205P | 2005-09-22 | 2005-09-22 | |
US72300705P | 2005-10-04 | 2005-10-04 | |
US72622805P | 2005-10-14 | 2005-10-14 | |
US72922505P | 2005-10-24 | 2005-10-24 | |
US73562805P | 2005-11-12 | 2005-11-12 | |
KR20060004055 | 2006-01-13 | ||
KR20060004065 | 2006-01-13 | ||
KR20060004056 | 2006-01-13 | ||
US78674006P | 2006-03-29 | 2006-03-29 | |
US79232906P | 2006-04-17 | 2006-04-17 | |
KR1020060056480A KR20070003574A (en) | 2005-06-30 | 2006-06-22 | Method and apparatus for encoding and decoding an audio signal |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200707406A true TW200707406A (en) | 2007-02-16 |
TWI305347B TWI305347B (en) | 2009-01-11 |
Family
ID=43352677
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW95124069A TWI333641B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
TW098104744A TWI459373B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
TW98104741A TWI412021B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
TW95124070A TWI305347B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW95124069A TWI333641B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
TW098104744A TWI459373B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
TW98104741A TWI412021B (en) | 2005-06-30 | 2006-06-30 | Method and apparatus for encoding and decoding an audio signal |
Country Status (2)
Country | Link |
---|---|
BR (1) | BRPI0613076A2 (en) |
TW (4) | TWI333641B (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4621862A (en) * | 1984-10-22 | 1986-11-11 | The Coca-Cola Company | Closing means for trucks |
US5893066A (en) * | 1996-10-15 | 1999-04-06 | Samsung Electronics Co. Ltd. | Fast requantization apparatus and method for MPEG audio decoding |
TW405328B (en) * | 1997-04-11 | 2000-09-11 | Matsushita Electric Ind Co Ltd | Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment |
JPH11330980A (en) * | 1998-05-13 | 1999-11-30 | Matsushita Electric Ind Co Ltd | Decoding device and method and recording medium recording decoding procedure |
US6631352B1 (en) * | 1999-01-08 | 2003-10-07 | Matushita Electric Industrial Co. Ltd. | Decoding circuit and reproduction apparatus which mutes audio after header parameter changes |
TW569550B (en) * | 2001-12-28 | 2004-01-01 | Univ Nat Central | Method of inverse-modified discrete cosine transform and overlap-add for MPEG layer 3 voice signal decoding and apparatus thereof |
US20040199276A1 (en) * | 2003-04-03 | 2004-10-07 | Wai-Leong Poon | Method and apparatus for audio synchronization |
-
2006
- 2006-06-30 TW TW95124069A patent/TWI333641B/en active
- 2006-06-30 BR BRPI0613076-3A patent/BRPI0613076A2/en not_active IP Right Cessation
- 2006-06-30 TW TW098104744A patent/TWI459373B/en active
- 2006-06-30 TW TW98104741A patent/TWI412021B/en active
- 2006-06-30 TW TW95124070A patent/TWI305347B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI412021B (en) | 2013-10-11 |
TWI333641B (en) | 2010-11-21 |
TWI305347B (en) | 2009-01-11 |
TW200707401A (en) | 2007-02-16 |
TW200947418A (en) | 2009-11-16 |
BRPI0613076A2 (en) | 2010-12-21 |
TWI459373B (en) | 2014-11-01 |
TW200939207A (en) | 2009-09-16 |
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Legal Events
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