[M4IF Technotes] Re: Question on AAC object type

[Ralph Sperschneider]

Hans-Juergen Bardenhagen wrote:
> On Thursday, 26.06.03, 20:53 Ralph Sperschneider wrote:
> 
> 
>>For MPEG-4 Audio transport it is recommended to use LOAS/LATM (low
>>overhead audio stream, low overhead audio transport multiplex).
> 
> 
> Oops, never heard of that one... Is this meant to be used in a MP4  
> container or as a plain AAC file being streamed in the internet for  
> example?

LOAS/LATM is for MPEG-4 Natural Audio _streaming_. Since it is specified for 
Audio only, it is defined in ISO/IEC14496-3. It can be used to stream all 
flavors of AAC, but also for the other MPEG-4 naatural audio codecs.
MP4FF is for MPEG-4 _storage_. Since the MP4 file format is specified for all 
MPEG-4 content it is specified in ISO/IEC14496-1. It is however intended to 
become specified in ISO/IEC14496-12 (isomedia file format) and ISO/IEC14496-14 
(mp4 file format as an instance of the isomedia file format).
Does this answer your question or do you need more information?
Best regards,
Ralph
> 
>>All these formats are specified in ISO/IEC14496-3.
> 
> 
> Thank you very much for your additional informations. :-)
> 
> ZZee ya, Hans-Jürgen
> 
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Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
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