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MPEG4 AAC LD
pratheekp
post Jan 19 2011, 13:36
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Can MPEG4 AAC LD be made from AAC LC by reducing its main 4 delays without using LTP?? or is LTP a major component in AAC-LD???
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C.R.Helmrich
post Jan 21 2011, 21:56
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IIRC all AAC LD flavors are based on AAC Low Complexity (LC). LTP is not allowed in LC because it increases the decoder (and also encoder) complexity significantly. LTP needs quite a lot of computation for little gain on "real-world" natural audio material.

Chris


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