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User: rnbc

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Comments · 55

  1. Re:worth it? on Anti-Aliased Text in X11 Continued · · Score: 1

    You don't enable it, because there is no such thing hehehe But you can install those nice adobe type1 fonts in your linux if you want. That's what i've made. And XF86 suports type1 postscript fonts since the dawn of man...

  2. Re:problem with digital. on Digital Movies and The Big Screen · · Score: 1

    As far as I know the human eye can distinguish about 60 shades of blue, 200 shades of red and 350 of green, so the 24bpp standart is only bad in the green range.

    The major problem is gammut. The eyes gammut is better than film, and better than CRTs.

    And within the CRTs gammut, witch is better than normal film, you can see less than 200 shades of green, so before complaining about 32bpp (24bpp in fact...) you should complain about gammut.

  3. Re:Nyquist theorem on Sony Super CD: More Bits, More Bucks, Mo' Betta? · · Score: 1

    No, it would not register a signal of amplitude zero if the proper reconstruction method (sum of "sinc" functions) is used.

    The problem is that such a method is not feasible in practice.

    Normally CDs 44.1/16 are converted into 200kHz/18 or something like that using a DSP witch emulates the "sinc", and than some cheap DAC using linear interpolation is used.

    That ruins the CD quality, not the technical specs of the CD itself.

    Really good DACs are able to fully reproduce whatever the human ear can hear, and Im one of those guys that (bieng 24) easly spots bats and hears 15625kHz PAL TVs...

    My mother is 55 and still hears bats and PAL tvs also... so I definetly have a good pair of biological transducers :-)

  4. Re:How sensitive is the SETI equipment? on SETI Results By Scientific American · · Score: 2

    Arecibo antenas would be unable to detect earth at 10 light years, except for some specially directed emissions.

    Tha is: a radar pulse directly headed would be detectable even 1000 light yers or more from here, but the normal radiation escaping from our planet would not be detectable.

    So... a SETI conducted in alpha centauri would probably have negative results.

    That even considering earth is a very bright body (many times more than sun) in some frequencies (the sun is very dim in them).

    So... SETI is basically crap. Perhaps in 100 years we will have technology to conduct a realistic search, and than SETI will make sense. After all it's only 100 years, not very much in cosmic scales. I think we can wait, instead of trying silly things right now.

  5. Re:Starting the theory thread again... on What Computers Really Can't Do · · Score: 1

    Computers are finite state machines with probabilistic state changes.

    They are not fully deterministic, because of the underlying universe.

    This is a big difference.