Re: [Bluez-devel] How to know the packet loss ratio of SCO socket

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

> > SCO are voice connections and they are CVSD encoded. It is not a  
> > reliable data transport. Use L2CAP or RFCOMM for that.
>
> I think you are right.
> My original purpose is to test the voice quality when 12 SCO server-client pairs
> are running in the same room (which means 12 small piconets contending the
> channel, although each pair has its own frequency hopping pattern).
> 
> Is there any good way to gather the voice quality information? (actually I don't
> know how to tell a voice qualify is "acceptable" to human ears. is there any
> good references?)

I have no idea. However you will see interference if the devices are
close. SCO consumes a fixed amount bandwidth.

Regards

Marcel



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