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- Path: sparky!uunet!cs.utexas.edu!sun-barr!ames!pacbell.com!charon.amdahl.com!amdahl!fadden
- From: fadden@uts.amdahl.com (Andy McFadden)
- Newsgroups: comp.sys.apple2
- Subject: Re: AutoArk
- Message-ID: <8c2303SFc8JI00@amdahl.uts.amdahl.com>
- Date: 13 Jan 93 00:23:17 GMT
- References: <3aMD03ktc8jB00@amdahl.uts.amdahl.com> <1993Jan11.020733.25905@nuscc.nus.sg>
- Organization: Amdahl Corporation, Sunnyvale CA
- Lines: 46
-
- In article <1993Jan11.020733.25905@nuscc.nus.sg> ltchean@iss.nus.sg (Lim Thye Chean) writes:
- >fadden@uts.amdahl.com (Andy McFadden) writes:
- >: In article <1993Jan8.055606.10289@nuscc.nus.sg> ltchean@rambutan.iss.nus.sg (Lim Thye Chean) writes:
- >: > The compression and decompression takes up a
- >: >lot of time, and I don't think this is the fault of AA.
- >:
- >: Wrong.
- >
- >Why? Please tell me more about it. I am very interested.
-
- I can't tell you the "why" of things, because I have never seen AutoArk. I
- do have some rough time comparisons, but they were not very scientific. I
- will say that HP uses some algorithms which are inherently faster than those
- available with AA.
-
- >What does HP actually do? Expand the file only in memory (like what I always
- >thought AA did before I bought it)?
-
- Yes. Plus some other amusing tricks.
-
- >How fast is HP?
-
- Very. I laugh at YankIt (which, BTW, I also wrote).
-
- >So you are the principle programmer of HP? Wow.
-
- I am the only programmer of HP. Which is why it has taken this long.
-
- >: Random numbers:
- >: - MODs were compressing by 20% (went from 11.9MB to 9.4MB)
- >: - TrueType fonts were compressing by 25%
- >
- >I think AA performs better than these (in case of MOD songs... am I right,
- >DOTW?)
-
- Try some TT fonts. Even GSHK was only getting around 8%, I believe. However,
- my sample was pretty small (the Pointless fonts + a couple of others).
-
- You will probably not do much better with MODs, because they are largely
- digitized sound. The 20% is an exact figure (unless I read it wrong); HP
- provides the statistics for you. HP may be able to do better, but it would
- take longer than most people want to wait. :-|
-
- --
- fadden@uts.amdahl.com (Andy McFadden)
- [ Above opinions are mine, Amdahl has nothing to do with them, etc, etc. ]
-