[Mp4-tech] Re: [Audio] aacPlus Synchronization with MPEG4 Video

[Ralph Sperschneider]

Dattaguru B.N. wrote:
> Dear Experts,
>
> I have some questions on synchronization of audio and
> video:
>
> 1.  How do we synchronize AAC Audio and MPEG video?
>
> 2.  Will AAC+ synchronization with MPEG video differ
> from
>      that of AAC.  If so,  what is the delay and how
> to take 
>      care of the same.
>
> 3.  If I perform a jump in between the decoding
> skipping some
>      frames,  how can I achieve sync and also in case
> of SBR,
>      how can I get the previous information for
> decoding the 
>      current frame?
>
> Thanks in advance for your valuable inputs.
> Waiting for your answers.
>
> Thanks and regards,
> Datta
>
>   

Dear Datta,
the issues you refer to are addressed by MPEG in the following documents:
ISO/IEC 14496-1:2004/COR1
ISO/IEC 14496-3:2005/COR4
Note: Corrigenda are available at the ISO web store free of charge.
If you are an MPEG member, you can have a look into N6798 for a more 
elaborative description.
Best regards,
Ralph
-- 
Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
Fraunhofer IIS                  | Fax:   +49 9131 776 398
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