WO2008009564A8 - Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal - Google Patents

Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal

Info

Publication number
WO2008009564A8
WO2008009564A8 PCT/EP2007/056824 EP2007056824W WO2008009564A8 WO 2008009564 A8 WO2008009564 A8 WO 2008009564A8 EP 2007056824 W EP2007056824 W EP 2007056824W WO 2008009564 A8 WO2008009564 A8 WO 2008009564A8
Authority
WO
WIPO (PCT)
Prior art keywords
data
lossless
signal
base layer
layers
Prior art date
Application number
PCT/EP2007/056824
Other languages
French (fr)
Other versions
WO2008009564A1 (en
Inventor
Oliver Wuebbolt
Florian Keiler
Peter Jax
Sven Kordon
Johannes Boehm
Original Assignee
Thomson Licensing
Oliver Wuebbolt
Florian Keiler
Peter Jax
Sven Kordon
Johannes Boehm
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
Application filed by Thomson Licensing, Oliver Wuebbolt, Florian Keiler, Peter Jax, Sven Kordon, Johannes Boehm filed Critical Thomson Licensing
Priority to KR1020097001007A priority Critical patent/KR101386270B1/en
Priority to EP07787114A priority patent/EP2041743A1/en
Priority to US12/309,370 priority patent/US8326639B2/en
Priority to JP2009519911A priority patent/JP5249214B2/en
Publication of WO2008009564A1 publication Critical patent/WO2008009564A1/en
Publication of WO2008009564A8 publication Critical patent/WO2008009564A8/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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

Abstract

Lossless compression algorithms can only exploit redundancies of the original audio signal to reduce the data rate, but not irrelevancies as identified by psycho-acoustics. Lossless audio coding schemes apply a filter or transform for decorrelation and then encode the transformed signal. The encoded bit stream comprises the parameters of the transform or filter, and the lossless representation of the transformed signal. However, in case of lossy based lossless coding the additional amount of information exceeds the amount of data for the base layer by a multiple of the base layer data amount. Therefore the additional data cannot be packed completely into the base layer data stream e.g. as ancillary data. The at least two data streams resulting from the combination of lossy coding format with a lossless coding extension are the base layer containing the lossy coding information and the enhancement data stream for rebuilding the mathematically lossless original input signal. Furthermore several intermediate quality layers are possible. However, these data streams are not independent from each other. Every higher layer depends on the lower layers and can only be reasonably decoded in combination with these lower layers. According to the invention, a special combination of one-time header information with repeated header information in a block structure is used, which kind of combination depends on the type of application. Assignment information data identify the different parts or layers of the lossless format belonging to one input signal. Synchronisation data are used to combine the different data streams or parts or layers to a single lossless or intermediate output signal. These features are used in a file format and in a streaming format.
PCT/EP2007/056824 2006-07-18 2007-07-05 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal WO2008009564A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020097001007A KR101386270B1 (en) 2006-07-18 2007-07-05 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal
EP07787114A EP2041743A1 (en) 2006-07-18 2007-07-05 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal
US12/309,370 US8326639B2 (en) 2006-07-18 2007-07-05 Audio data structure for lossy and lossless encoded extension data
JP2009519911A JP5249214B2 (en) 2006-07-18 2007-07-05 Bitstream data of lossy encoded signal and audio bitstream data structure arrangement of lossless extended encoded data of the above signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06117375.3 2006-07-18
EP06117375A EP1881485A1 (en) 2006-07-18 2006-07-18 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal

Publications (2)

Publication Number Publication Date
WO2008009564A1 WO2008009564A1 (en) 2008-01-24
WO2008009564A8 true WO2008009564A8 (en) 2008-05-08

Family

ID=37143498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/056824 WO2008009564A1 (en) 2006-07-18 2007-07-05 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal

Country Status (6)

Country Link
US (1) US8326639B2 (en)
EP (2) EP1881485A1 (en)
JP (1) JP5249214B2 (en)
KR (1) KR101386270B1 (en)
CN (1) CN101490746A (en)
WO (1) WO2008009564A1 (en)

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CN102684703A (en) * 2012-04-26 2012-09-19 北京师范大学 Efficient lossless compression method for digital elevation model data
US11128935B2 (en) * 2012-06-26 2021-09-21 BTS Software Solutions, LLC Realtime multimodel lossless data compression system and method
US10382842B2 (en) * 2012-06-26 2019-08-13 BTS Software Software Solutions, LLC Realtime telemetry data compression system
US9953436B2 (en) 2012-06-26 2018-04-24 BTS Software Solutions, LLC Low delay low complexity lossless compression system
WO2014004486A2 (en) * 2012-06-26 2014-01-03 Dunling Li Low delay low complexity lossless compression system
KR102204136B1 (en) * 2012-08-22 2021-01-18 한국전자통신연구원 Apparatus and method for encoding audio signal, apparatus and method for decoding audio signal
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CN109587497B (en) * 2018-12-13 2021-03-23 广州虎牙信息科技有限公司 Audio data transmission method, device and system for FLV (flash video) stream

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Also Published As

Publication number Publication date
CN101490746A (en) 2009-07-22
KR20090040294A (en) 2009-04-23
JP2009544054A (en) 2009-12-10
KR101386270B1 (en) 2014-04-17
EP2041743A1 (en) 2009-04-01
EP1881485A1 (en) 2008-01-23
WO2008009564A1 (en) 2008-01-24
US8326639B2 (en) 2012-12-04
JP5249214B2 (en) 2013-07-31
US20090240506A1 (en) 2009-09-24

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