Re: [hylafax-users] Going through recent archives....

[An Intrepid HylaFax User <hylafax@xxxxxxxxx>]

> Regular resolutions are "normal" (~200X100 dpi) and "fine" (~200X200 
> dpi).

You mean 204x98 and 204x196. :) I swear, the standards committees should be
shot for such non-harmonic choices.  I can understand the desire to reduce
bitrate requirements by halving the vres, but where did these funky
resolutions come from?  2 x 2 x 3 x 17 (204) and 7 x 7 x 2 x 2 (196) do not
denote any logical harmonic relationship (51:49).  Fine, so laser printers
and all that weren't commonplace when these standards evolved.  But even if
you used quill-pen printing technology, surely it'd be easier to implement a
system which used nice and rational harmonics.

Ah well, we're stuck with it now.

> Extended resolutions are "superfine" (~200X400 dpi)

Most fax machines seem to support this, at least they offer a mode setting
for it on even my super-cheap Brother branded skank machine.  I assume
that's 204 x 392?

> "ultrafine"  (300X300 dpi), and "hyperfine" (~400X400 dpi).

Shiver me timbers!  Square resolutions!  Be still my beating heart.

How recent are these?  I've never seen or heard of them.

> Seems like ECM without V.34 (SuperG3) is probably what you want to use 
> (Class 2.0) 

Thank you, Lee.

> Yes.  Receive and send.  Receive is *much* more tested than send, 

Interesting, OK.

Thank you for your pertinent advice once again.

=Rob=


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