Archived posting to the Leica Users Group, 2006/02/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Douglas, Sound is converted by movement of a finite number of tiny hairs in our cochlea. The signal received by our brain is therefore digital (or maybe quantised is the correct term? what is the difference?). I suppose one could say that since everything is quantised it can be digitally represented, even if the sampling frequency is random. Frank --- Douglas Sharp <douglas.sharp@gmx.de> wrote: > Possibly in the sense of sampling an image in tiny > pieces i.e. film > grains and pixels? The only difference being that > digital has an ordered > (matrix) structure - what would film look like if > grain wasn't randomly > distributed? > Frank, I gather you mean the conversion of wave > motion to electrical > impulses when you say our ears are digital, or am I > missing something? > Douglas > > FRANK DERNIE wrote: > > >Hi Didier, > >what definition of digital are you using here? In > what > >way does film have "no digital character at all" ? > >AFAIU it -is- digital, like our ears, for example. > >Frank > > > >--- Didier Ludwig <rangefinder@screengang.com> > wrote: > > > > > > > >>>Not sure where the digital vs. analog got > >>> > >>> > >>started... This isn't the first > >> > >> > >>>place I've seen it. Traditional film is *not* > >>> > >>> > >>analog. If you want to > >> > >> > >>>classify it between digital and analog, you'd > have > >>> > >>> > >>to classify film emulsion > >> > >> > >>>as digital, too. :) > >>> > >>> > >>We can talk about if film is analog or not, but > >>there's no doubt it has no digital character at > all. > >>Film emulsion is not rasterized in a straight > >>matrix. The grains sizes are varying, and their > >>arrangement is stochastic and three-dimensional. > >>Even the sensibility may change from grain to > grain > >>(one of the reasons why grain can be seen on shots > >>with low light). > >> > >>If film is analog or not, doesn't mind very much, > as > >>long as everyone knows what's meant with analog. > >>Going further might turn into hairsplitting... ;-) > >> > >>Didier > >> > >> > >> > >>_______________________________________________ > >>Leica Users Group. > >>See http://leica-users.org/mailman/listinfo/lug > for > >>more information > >> > >> > >> > > > >_______________________________________________ > >Leica Users Group. > >See http://leica-users.org/mailman/listinfo/lug for > more information > > > > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for > more information >