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Audio Decoder, Apparatus for Generating Encoded Audio Output data and Methods Permitting Initializing a Decoder

 
: Fischer, Daniel; Czelhan, Bernd; Neuendorf, Max; Rettelbach, Nikolaus; Hofmann, Ingo

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Frontpage ()

EP 20130189328 : 20131018
Englisch
Patent, Elektronische Publikation
Fraunhofer IIS ()

Abstract
An audio decoder decodes a bit stream of encoded audio data, wherein the bit stream of encoded audio data represents a sequence of audio sample values and comprises a plurality of frames, wherein each frame includes associated encoded audio sample values. The audio decoder comprises a determiner configured to determine whether a frame of the encoded audio data is a special frame comprising encoded audio sample values associated with the special frame and additional information, wherein the additional information comprise encoded audio sample values of a number of frames preceding the special frame, wherein the encoded audio sample values of the preceding frames are encoded using the same codec configuration as the special frame, wherein the number of preceding frames is sufficient to initialize the decoder to be in a position to decode the audio sample values associated with the special frame if the special frame is the first frame upon start-up of the decoder. The decoder comprises an initializer configured to initialize the decoder, wherein initializing the decoder comprises decoding the encoded audio sample values included in the additional information before decoding the encoded audio sample values associated with the special frame.

: http://publica.fraunhofer.de/dokumente/N-345442.html