[Mp4-tech] about audio Transcoding

Dave Singer singer apple.com
Fri Oct 28 11:28:46 ESTEDT 2005


At 22:00  -0700 17/10/05, venkata kumar wrote:
>Dear Experts,
>Is there any conversion between
>1.AMR to QCELP with out going to intermedia file
>format such as AMR to PCM to QCELP

internally any tool I can think of will go through raw audio here; 
these two codecs may be both 'speech codecs' but I doubt that you can 
convert any of the coefficients etc. very easily.
>2. AMR any mode to AMR any mode
>please help for the same.

some of the AMR modes will have some commonality, I think, but a 
general conversion will again be difficult.
What's the problem with going through uncompressed audio in the middle?
>with regards,
>venkat
>
>
>V.Venkata Kumar,
>Motech House,
>56 Mogra village lane,
>Off old Nagardas Road,
>Andheri(E),
>Mumbai-69.
>(LandMark :mogra Pada)
>
>Email ID:venkatkumar motechsoftware.com
>Telephone No:(022)30811400(ext:1527).
>
>
>
>
>
>
>
>
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-- 
David Singer
Apple Computer/QuickTime


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