AUDIO ENCODER AND DECODER USING A FREQUENCY DOMAIN PROCESSOR A TIME DOMAIN PROCESSOR AND A CROSS PROCESSOR FOR CONTINUOUS INITIALIZATION

Abstract

An audio encoder for encoding an audio signal comprises: a first encoding processor (600) for encoding a first audio signal portion in a frequency domain wherein the first encoding processor (600) comprises: a time frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency of the first audio signal portion; a spectral encoder for encoding the frequency domain representation; a second encoding processor for encoding a second different audio signal portion in the time domain; a cross-processor (700) for calculating from the encoded spectral representation of the first audio signal portion initialization data of the second encoding processor (610) so that the second encoding processing (610) is initialized to encode the second audio signal portion immediately following the first audio signal portion in time in the audio signal; a controller configured for analyzing the audio signal and for determining which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion of the audio signal is the second audio signal portion encoded in the time domain; and an encoded signal former for forming an encoded audio signal comprising a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second audio signal portion.

Technology	Declaration Information	Specification Information	Explicitly Disclosed	Patent Type
4G,3G	07/03/2016	ISLD-201512-009	FRAUNHOFER SOCIETY	S1 TS Number: TS 126 445 Version No: ---- Illustrative part: ---- Release: ---- + -	Yes	Basis Patent

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WO2016016124A1

4G,3G

Title

AUDIO ENCODER AND DECODER USING A FREQUENCY DOMAIN PROCESSOR A TIME DOMAIN PROCESSOR AND A CROSS PROCESSOR FOR CONTINUOUS INITIALIZATION

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