[sdiy] How to make wavetables? What size?

[Metrophage]

(learning to type and play Kraakdoos simultaneously)

Now that I have put together a decent selection of logic chips, worked
out how to burn EPROMs, and bought some EPROMs - I figure I am ready to
try building a VCDO of some kind. Some of the best examples I have seen
are the Digisound, CGS, and some bits from Modulus. Most of the people
who I have chatted with seem to use the MiniWave. 

Simply building something which can work is probably easy enough for
me, though I do not yet quite understand the details of the addressing
and the tables themselves. I noticed that the Digi and CGS use 64 byte
waves, whereas the MW uses 256 byte waves. Of course this means that a
256 byte wave will contain more information running faster, while with
less info 64 byte does not need to run so fast. Also, Grant's wavetable
utilities are convenient for making 256b stuff. I imagine it is more
difficult to convert a VCO input into something running 256 times as
fast...

I guess what I am wondering is if there are any opinions about how many
bytes to use for my waves, and how to make the tables themselves! With
all the stuff I have read, I have no idea how people convert the
audio/graph/scales/whatever into the hex or binary that would be burned
onto a wavetable EPROM. Any ideas, cautions, advice, etc to drop on a
digital noob? I could just use the Digisound ROM, and I likely will
check it out, but since I mess around with so much sound I figure I
should bring some new tables.

CJ


		
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