Re: Directionality of Sound changes

--- In phoNet@yahoogroups.com, "H.M. Hubey" <HubeyH@M...> wrote:

>
>
> Richard Wordingham wrote:
> > More to the point, it seems that [p\], [f], [T], [s] and [x] are

all

> > close to [h]. Or are we just looking at a shift from a

fricative to

> > an approximant when these fricatives fade out? Voiceless
> > approximants are silent :)
>
> I would guess, that [historical] linguists would judge
>
> 1, p/f to be close (place)
> 2. s/x to be close (fricative) and also because of Iranian and

rest of

> IE e.g. s/x
> 3. some could say f/s (fricative)
>
> I don't know what [T] represents.

I've been using the extended SAMPA notation. I've just put a chart
of its 7-bit symbols in the files as
http://groups.yahoo.com/group/phoNet/files/ipasam-x.htm . [p\] is
the bilabial voiceless fricative, and [T] is the dental fricative.

Richard.