Analysis filterbank synthesis filterbank encoder decoder mixer and conferencing system

Abstract

An embodiment of a synthesis filterbank for filtering a plurality of input frames each input frame comprising ordered input values comprises: an inverse type-IV discrete cosine transform frequency-to-time converter configured to provide a plurality of output frames; a windower configured to generate a plurality of windowed frames each including a plurality of windowed samples; an overlap/adder configured to provide an intermediate frame comprising a plurality of intermediate samples; and a lifter configured to provide an added frame comprising a plurality of added samples. The synthesis filterbank is used in audio encoding audio decoding or other audio transmission-related applications and designed to provide a suitable transmission bandwidth and quality level for applications such as conferencing.

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4G,3G	06/03/2016	ISLD-201512-009	FRAUNHOFER SOCIETY	S1 TS Number: TS 126 445 Version No: Illustrative part: ---- Release: + -				No	Family Member

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WO2008046468A2	4G,3G	06/03/2016	ISLD-201512-009	FRAUNHOFER SOCIETY	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
WO2008046468A3	4G,3G	06/03/2016	ISLD-201512-009	FRAUNHOFER SOCIETY	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
AT554480T	4G,3G	06/03/2016	ISLD-201512-009	FRAUNHOFER SOCIETY	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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