TW200707402A - Apparatus for encoding and decoding audio signal and method thereof - Google Patents

Apparatus for encoding and decoding audio signal and method thereof

Info

Publication number
TW200707402A
TW200707402A TW095124113A TW95124113A TW200707402A TW 200707402 A TW200707402 A TW 200707402A TW 095124113 A TW095124113 A TW 095124113A TW 95124113 A TW95124113 A TW 95124113A TW 200707402 A TW200707402 A TW 200707402A
Authority
TW
Taiwan
Prior art keywords
encoding
decoding
downmix
audio signal
signal
Prior art date
Application number
TW095124113A
Other languages
Chinese (zh)
Other versions
TWI319868B (en
Inventor
Hee-Suk Pang
Hyen-O Oh
Dong-Soo Kim
Jae-Hyun Lin
Yang-Won Jung
Sung Yong Yoon
Original Assignee
Lg Electronics Inc
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.)
Filing date
Publication date
Priority claimed from KR1020060030653A external-priority patent/KR20070003544A/en
Priority claimed from KR1020060056480A external-priority patent/KR20070003574A/en
Priority claimed from KR1020060058139A external-priority patent/KR20070003593A/en
Priority claimed from KR1020060058120A external-priority patent/KR20070005477A/en
Priority claimed from KR1020060058141A external-priority patent/KR20070075237A/en
Priority claimed from KR1020060058142A external-priority patent/KR20070076363A/en
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of TW200707402A publication Critical patent/TW200707402A/en
Application granted granted Critical
Publication of TWI319868B publication Critical patent/TWI319868B/en

Links

Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bitstream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bitstream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level.
TW95124113A 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof TWI319868B (en)

Applications Claiming Priority (19)

Application Number Priority Date Filing Date Title
US69500705P 2005-06-30 2005-06-30
US69585805P 2005-07-05 2005-07-05
US74860805P 2005-12-09 2005-12-09
US75700406P 2006-01-09 2006-01-09
US75823606P 2006-01-12 2006-01-12
US75860906P 2006-01-13 2006-01-13
KR20060004055 2006-01-13
KR20060004056 2006-01-13
KR20060004065 2006-01-13
US75962306P 2006-01-18 2006-01-18
US76035906P 2006-01-20 2006-01-20
KR1020060030653A KR20070003544A (en) 2005-06-30 2006-04-04 Clipping restoration by arbitrary downmix gain
KR1020060030671A KR20070003545A (en) 2005-06-30 2006-04-04 Clipping restoration for multi-channel audio coding
KR1020060056480A KR20070003574A (en) 2005-06-30 2006-06-22 Method and apparatus for encoding and decoding an audio signal
KR1020060058139A KR20070003593A (en) 2005-06-30 2006-06-27 Encoding and decoding method of multi-channel audio signal
KR1020060058140A KR20070003594A (en) 2005-06-30 2006-06-27 Method of clipping sound restoration for multi-channel audio signal
KR1020060058120A KR20070005477A (en) 2005-07-05 2006-06-27 Method for compensation of energy levels in specific channel signals for multi-channel audio coding and aparatuses for encoding and deconding multi-channel audio signals performancing the compensation
KR1020060058141A KR20070075237A (en) 2006-01-12 2006-06-27 Encoding and decoding method of multi-channel audio signal
KR1020060058142A KR20070076363A (en) 2006-01-18 2006-06-27 Method of encoding and decoding an audio signal

Publications (2)

Publication Number Publication Date
TW200707402A true TW200707402A (en) 2007-02-16
TWI319868B TWI319868B (en) 2010-01-21

Family

ID=44865299

Family Applications (4)

Application Number Title Priority Date Filing Date
TW95124113A TWI319868B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof
TW098105155A TWI409803B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof
TW95124112A TWI314722B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof
TW95124111A TWI376107B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof

Family Applications After (3)

Application Number Title Priority Date Filing Date
TW098105155A TWI409803B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof
TW95124112A TWI314722B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof
TW95124111A TWI376107B (en) 2005-06-30 2006-06-30 Apparatus for encoding and decoding audio signal and method thereof

Country Status (2)

Country Link
MY (3) MY149615A (en)
TW (4) TWI319868B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109473114A (en) * 2013-03-29 2019-03-15 苹果公司 The dynamic range control of metadata driven

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI812658B (en) * 2017-12-19 2023-08-21 瑞典商都比國際公司 Methods, apparatus and systems for unified speech and audio decoding and encoding decorrelation filter improvements

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7110662B1 (en) * 1997-03-25 2006-09-19 Samsung Electronics Co., Ltd. Apparatus and method for recording data on a DVD-audio disk
US6356639B1 (en) * 1997-04-11 2002-03-12 Matsushita Electric Industrial 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
US5946352A (en) * 1997-05-02 1999-08-31 Texas Instruments Incorporated Method and apparatus for downmixing decoded data streams in the frequency domain prior to conversion to the time domain
BR9804955B1 (en) * 1997-06-03 2009-12-01 apparatus and process for reproducing a digital audio signal from a recording medium.
US6122619A (en) * 1998-06-17 2000-09-19 Lsi Logic Corporation Audio decoder with programmable downmixing of MPEG/AC-3 and method therefor
US7106943B2 (en) * 2000-09-21 2006-09-12 Matsushita Electric Industrial Co., Ltd. Coding device, coding method, program and recording medium
US7139704B2 (en) * 2001-11-30 2006-11-21 Intel Corporation Method and apparatus to perform speech recognition over a voice channel
TW591903B (en) * 2002-12-12 2004-06-11 Conwise Technology Corp Ltd Method for detecting a tone signal through digital signal processing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109473114A (en) * 2013-03-29 2019-03-15 苹果公司 The dynamic range control of metadata driven
CN109509477A (en) * 2013-03-29 2019-03-22 苹果公司 The dynamic range control of metadata driven
CN109509477B (en) * 2013-03-29 2023-08-04 苹果公司 Metadata driven dynamic range control
CN109473114B (en) * 2013-03-29 2023-09-29 苹果公司 Metadata driven dynamic range control

Also Published As

Publication number Publication date
MY157901A (en) 2016-08-15
MY145249A (en) 2012-01-13
TW200931396A (en) 2009-07-16
TWI409803B (en) 2013-09-21
TWI376107B (en) 2012-11-01
TWI319868B (en) 2010-01-21
TW200707407A (en) 2007-02-16
TW200713851A (en) 2007-04-01
MY149615A (en) 2013-09-13
TWI314722B (en) 2009-09-11

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