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    • 2. 发明申请
    • FRAME ELEMENT POSITIONING IN FRAMES OF A BITSTREAM REPRESENTING AUDIO CONTENT
    • 代表音频内容的BITSTREAM框架中的框架元素定位
    • WO2012126891A1
    • 2012-09-27
    • PCT/EP2012/054821
    • 2012-03-19
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.DOLBY INTERNATIONAL ABKONINKLIJKE PHILIPS ELECTRONICS N.V.NEUENDORF, MaxMULTRUS, MarkusDÖHLA, StefanPURNHAGEN, HeikoDE BONT, Frans
    • NEUENDORF, MaxMULTRUS, MarkusDÖHLA, StefanPURNHAGEN, Heiko
    • G10L19/14
    • G10L19/008G10L19/00G10L19/167G10L19/18
    • A better compromise between a too high bitstream and decoding overhead on the one hand and flexibility of frame element positioning on the other hand is achieved by arranging that each of the sequence of frames of the bitstream comprises a sequence of N frame elements and, on the other hand, the bitstream comprises a configuration block comprising a field indicating the number of elements N and a type indication syntax portion indicating, for each element position of the sequence of N element positions, an element type out of a plurality of element types with, in the sequences of N frame elements of the frames, each frame element being of the element type indicated, by the type indication portion, for the respective element position at which the respective frame element is positioned within the sequence of N frame elements of the respective frame in the bitstream. Thus, the frames are equally structured in that each frame comprises the same sequence of N frame elements of the frame element type indicated by the type indication syntax portion, positioned within the bitstream in the same sequential order. This sequential order is commonly adjustable for the sequence of frames by use of the type indication syntax portion which indicates, for each element position of the sequence of N element positions, an element type out of a plurality of element types.
    • 另一方面,通过布置比特流的每个帧序列包括N个帧元素的序列,从而实现了一方面太高比特率和解码开销与另一方面的帧元素定位的灵活性之间的更好的折中,并且在 比特流包括配置块,其包括指示元素数目N的字段和类型指示语法部分,其指示对于N个元素位置序列的每个元素位置,多个元素类型中的元素类型, 在帧的N个帧元素的序列中,每个帧元素是由类型指示部分指示的元素类型,用于相应元素位置,在该元素位置处,相应的元素位于相应的N个帧元素的N个帧元素的序列内 帧中的比特流。 因此,这些帧被相同地构造为:每个帧包括以相同顺序的顺序位于比特流内的类型指示语法部分所指示的帧元素类型的相同N个帧元素序列。 通过使用类型指示语法部分来对于该帧序列通常可调节该顺序,对于多个元素类型中的N个元素位置序列的每个元素位置指示元素类型。