[Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ?

[Wesley De Neve]

Hi,
Dattaguru B.N wrote:
> Dear All,
>
> I want to know, what would be the advantage of attaching
> an uncompressed (wav) data into a compressed (mp4) data?

The use case I am talking about is a solution in which uncompressed
CD-quality audio is sent into a controlled network, together with compressed
video (MPEG-4 Visual). Both data streams are the result of live capturing.
Being able to store the streams in question at the terminal of the clients
in the MP4 file format would have been very nice (no need to integrate an
audio codec in an already existing system, no licensing issues w.r.t. the
audio, ...).
Since the MP4 file format is a generic media container, the latter shouldn't
be a big problem. And it isn't, because you always have a fallback to a
proprietary track or the user data section. The only problem is when you
want to do it in an interoperable way.
I can also imagine some interest from an editing point of view (AFAIK the
MP4 file format is supposed to be more than a publishing format).
Best regards,
-Wesley