[Mp4-tech] MPEG-2 AAC + SBR

[Andreas Schneider]

Hello,
ISO/IEC 13818-7:2003/AMD1 is the standard you will want to consult 
regaring SBR with MPEG-2 AAC, though signaling is probably the most 
important thing to mention.
Conformance testing of MPEG-2 AAC with SBR happens in the same way as 
MPEG-4 HE AAC conformance testing, except that - obviously - everything 
that requires explicit signaling is disregarded.
Hope that helps,
Andreas
mp4-tech-bounces lists.mpegif.org wrote on 2023-12-14 06:01:17:
> Hi all,
> 
> Can you people help me in the following issue ,
> 
> I need to implement MPEG-2 AAC + SBR :
> 
>   a)I am having MPEG-2 AAC ( no SBR ).
>   b)I am having MPEG-4 AAC + SBR.
> 
> What I am planning to do is, take SBR from b) and plug it in to a).
> 
> I have mainly two issues,
> 
> Issue 1:   Signaling of SBR.
> ----------------------------
>  Out of the two signaling schemes ( Implicit & Explicit ),
>  I think implicit signaling is the one suits this scenario.
>  (even though it will make the final system complex).
> 
>  Do you find any problem with this choice ????
> 
>  Do I need to consult the content providers for confirming about the
> signaling ?
> 
> Issue 2:  Testing for MPEG-2 + SBR.
> -----------------------------------
>  How do I test this setup ?
> 
> Do you people find any more future risks in this ????
> 
> Hope I have conveyed my doubt in a clear manner.
> 
> Waiting for your response.
> 
> Thanks in advance,
> 
> sherin
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--
Andreas Schneider, Research Engineer
Coding Technologies GmbH
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