[comp.sys.amiga] Synthia II -- my comments, complaints

C503719@UMCVMB.MISSOURI.EDU (Baird McIntosh) (12/26/90)

I just got Synthia II for Christmas, and since no one here knew anything
about this program about a month ago, I figure I'll give you my first
impressions:

First the good:  Synthia II looks like a very good program for creating
---------------  synthetic sound on the Amiga for use by the Amiga's sound
                 hardware.  You can also make samples for use in Synthia
                 Professional; i.e. the file formats are recognized both
                 ways.  However, Synthia II is really best for making sounds
                 to be reproduced by the Amiga's sound hardware.  The number
                 of synthesis methods, added effects, and adjustable
                 parameters is overwhelming!  The manual seems pretty good
                 at giving basic explanations of most of the synthesis
                 techniques employed.  The package consists of a Program
                 disk, an Examples disk (lots of examples), and an Extras
                 disk (more on this below).  Finally, you can load in
                 sampled sounds and edit them, loop them, etc. with Synthia.
                 The package recognizes a couple popular Mac formats too.

And the bad:  Unfortunately, there are some bad points.  These are:
------------
            1)  Synthia II, like the demo, runs with a default priority
                that is *system-hostile*.  Just for your info, each
                process running on the Amiga has a priority, and it is
                through this priority that the OS knows how to slice up
                (allot) processor time.  From the 1.3 Enhancer manual,
                I see that you should normally run programs at priority 0.
                Furthermore, priorities greater than 5 will interfere with
                the system's tasks.  Well, Synthia II has a default
                priority of 12 (twelve)!  This really interferes with
                multitasking because when you 'make' an instrument, the
                vast majority of processor time goes to Synthia II.
                What is really crazy is that I have used changetaskpri
                to lower Synthia II to 0 priority, and I notice no real
                slow down in the 'make' process.  In other words, they
                aren't even gaining anything by being system-hostile!

            2)  Synthia II is key-disk protected.  You can make a backup
                of the Program disk with AmigaDos, but then you'll have
                to insert the key-disk *once* per boot-up. (see below if
                the 'once' makes you curious)  You can order a normal
                backup for $7.00 (why???) or an unprotected one for $15.00.
                This is really pathetic.  The whole point of making a backup
                is so you don't have to keep the original out with your
                other disks!  Fortunately, I was able to make a working
                back-up of the key-disk using NIB 1.0.  So I don't have to
                shell out the $15.00.

            3)  Synthia II stomps on location 0!!!  Yes, that's true.
                I run MemWatch, and it appears that Synthia II will write to
                location zero about four times on the first run.  Then you
                exit and reload, and it won't write to location zero until
                you reboot your Amiga.  I conclude from this that Synthia II
                uses location zero as a flag to determine if it has seen the
                key-disk yet.  Since nobody is supposed to write to location
                zero, Synthia II decided to use it as their own global
                variable.  Swell.  :-(

            4)  Finally, the Extras disk has a SMUS player that will play
                scores that use normal IFF instruments and/or the new
                (not yet Amiga standard) AudioIFF instruments.  However,
                the player is a bit of a dog -- I found that the tempo of
                some songs fluctuated.  I'll stick with MED or Sonix.

I plan to inlude the above comments on my registration card when I send it
in.  Synthia II looks like a ***really nice*** program for synthesizing
clean, sweet-sounding instruments and effects.  Unfortunately, copy
protection and anti-multitasking programming practices are holding back
this otherwise excellent program.

Synthia II:  distributed by The Other Guys Software, 55 North Main,
             Suite 301, Logan, UT 84321, 801-753-7620

Disclaimer:  I received Synthia II as a gift.  That's it.

| Baird McIntosh | c503719@umcvmb.missouri.edu <-or-> c503719@umcvmb.bitnet |
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