[Asterisk-Users] MOS Scores and LCR

[trixter aka Bret McDanel]

On Sat, 2006-06-17 at 23:25 +0800, Steve Underwood wrote:
> Calling MOS totally subjective is rather strange. Telephony only has to 
> meet subjective goals. In reality, MOS is pretty objective, as it is a 
> carefully controlled experiment across enough subjective individuals to 
> filter out a reasonably objective answer.
> 
it is subjective to the particular test, which afaik MOS doesnt have
standards on what types of people should form such a test group.  As
such you can have different results based on the combination of the
sample sounds and the group that is listening to it.  This is why many
people are typically involved, but that is not a guarantee that the
group will be diverse enough and objective enough when rating stuff, it
is just a mitigating factor against all out bias.

> They exist, but current ones cost a fortune. Used with understanding 
> they do a fine job. Sadly people who don't understand them tend to read 
> far to much into the answers they give. Sometimes they are seriously out 
> of line with perceived quality, but they usually do well.
> 
Yeah I wasnt clear I meant something that is either open sourced or
priced reasonable.


> >I do not mean to trivialize network management and do understand that
> >sometimes problems are outside your control (ie packets on the
> >uncontrolled internet may experience problems because of a tertiary
> >provider between you and the remote end) and as such this is just one
> >peice of the puzzle as I see it.
> >  
> >
> For those reasons may think VoIP will always suck. They might well be right.

Anyone that would say VoIP sucks becuase of that I would have to
question a bit, simply becuase VoIP doesnt mean voice over the open
internet, although to listen to marketing types that is often what they
want to claim.  


-- 
Trixter http://www.0xdecafbad.com     Bret McDanel
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http://www.trxtel.com the VoIP provider that pays you!
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