[Asterisk-Users] G729 vs. gsm

[Rusty Shackleford]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Steve Underwood
> Sent: Friday, May 27, 2005 6:40 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] G729 vs. gsm

> Well, it does to anyone without hearing damage. It sounds 
> very obviously different.

Different, yes, but to what degree is an entirely subjective judgement.
Ergo, your judgement of "...very obviously different..." is valid only
for you.

 
> > Please do not get me wrong that G711u sounds better through the
PSTN.
> > Thats a given! You can't convert G729 up and down to G711 and expect

> > the sound quality to be there.

> This is meaningless drivel.

Hardly. Each conversion introduces the equivalent of "gen loss". Two
such conversions are easily encountered, especially when dealing with a
third-party network, and will produce (in MY subjective opinion)
positively crappy sound. 


> Since it doesn't correlate with the impression of even the 
> developers of 
> G.729, it *is* bad information. Realistic people know G.729 will be 
> worse. What they need is meaningful guidance as to just how much.

Yes, and your guidance is oh-so-meaningful. 
<roll eyes>

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