Alex Zarubin wrote:
I am positive, 4 bits per sample, 6000 Hz.
This is a default play/record setting for the older Dialogic R4 API
and we need
to play zillions (sic!) of files (messages) recorded this way.
Conversion issues:
- expensive
C versions of the OKI/Dialogic ADPCM codec are freely available.
- resampling quality
It does need resampling, as the codec will give you linear PCM at
6000/s. The Dialogic cards have to do that anyway, to make an 8000/s
stream for an A-law or u-law PCM channel. You won't loose more quality
than they do (unless you do something dumb).
- storage
- application changes
- etc.
Would be real nice and useful to have this codec.
Thank you.
Alex Zarubin
Webley Systems, Inc.
Regards,
Steve
_______________________________________________
Asterisk-Users mailing list
[EMAIL PROTECTED]
http://lists.digium.com/mailman/listinfo/asterisk-users
