Hi, > I have looked all the old articles, but still have a question. > In the Bluetooth spec, it said the CVSD input shall be 64ksample/s and 16-bit > linear PCM. > It also says the output of the CVSD decoder are 16-bit linear PCM > digital samples, at a sampling frequency of 8 ksample/sec. > > I am a little confused about the data rate of the input side (64k*16bit = > 1024kbps), which seems 8 times faster than the output of decoder. > > Besides, I tried to open a SCO socket between two adapters (scotest), and the > maximum data rate in one direction is 128kbps. > Thus, I don't think we can actually feed 64ksamples/sec, 16-bit voice data into > the CVSD codec of the adapter. the CVSD is only used over-the-air. The input for the host adapter is based on the voice setting which defaults to 16-bit linear PCM. Regards Marcel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bluez-devel mailing list Bluez-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/bluez-devel
