MPEG4 AAC LD - Hydrogenaudio Forums

MPEG4 AAC LD

pratheekp View Member Profile	Jan 19 2011, 13:36 Post #1
Group: Members Posts: 56 Joined: 19-January 11 Member No.: 87451	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 View Member Profile	Jan 21 2011, 21:56 Post #2
Group: Developer Posts: 618 Joined: 6-December 08 From: Erlangen Germany Member No.: 64012	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 -------------------- If I don't reply to your reply, it means I agree with you.

Posts in this topic

pratheekp MPEG4 AAC LD Jan 19 2011, 13:36

saratoga QUOTE (pratheekp @ Jan 19 2011, 07:36) Ca... Jan 19 2011, 17:47

pratheekp But in the MPEG4 spec its told that AAC-LD is the ... Jan 20 2011, 05:34

pratheekp Can any1 provide me good links for ER AAC-LD codin... Jan 20 2011, 09:40

.alexander. Level for the Low Delay AAC Profile: Max channels... Jan 20 2011, 11:18

pratheekp delay in AAC-LC can be reduced using 1. 512/480 sa... Jan 20 2011, 11:08

pratheekp I want to include LTP in ER AAC LD profile. I want... Jan 21 2011, 14:04

saratoga QUOTE (pratheekp @ Jan 21 2011, 08:04) I ... Jan 21 2011, 20:16

C.R.Helmrich IIRC all AAC LD flavors are based on AAC Low Compl... Jan 21 2011, 21:56

.alexander. QUOTE (C.R.Helmrich @ Jan 21 2011, 23:56)... Jan 24 2011, 13:08

pratheekp Thanks to all who responded...bt i juz want to kno... Jan 24 2011, 09:09

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