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In sound artist terms, wind = cymbal (white noise) + filter. That was one of the last things to be solved emulating the SNES SPC-700.

The DSP details are all in the big AICA document. We actually used the AICA documentation to work out the SCSP's DSP (which is now reference-quality).

EVA_6 sound is more like pair of maracas if you ask me, but I had to apply KS last patch manually and I might have borked it.

As for "big AICA document" - any chance I could get my hands on it?

I think this is the right one:

http://rbelmont.mameworld.info/aica.zip

Okay, I suppose my definition of "big" isn't that broad.
BTW I can easily point several places in this doc where it's just plain wrong about things. I assumed whoever wrote original DSP code had access to something a bit more descriptive.

I'll cut to the point - this still doesn't say where exactly in 64-bit DSP word are fields like XSEL, YSEL, etc. And the reason I'm asking is I don't trust the decoding done in current AICA implementation. Example (and based on this doc too): MASA is defined as bits [5:0] (just not where exactly) and aicadsp.c does this first "UINT32 MASA=(IPtr[6]>>9)&0x1f;" and then "ADDR=DSP->MADRS[MASA<<1];" later. That's [4:0] shifted to [5:1].

Sure you don't really get anything out of helping me create DSP support for Makaron, but at least you'd know I didn't just steal your code

Well, the DSP output sounds correct. There are other issues with the AICA, but the DSP is generating reverb pretty much as expected. KS did the opcode encoding changes, probably from a magical document that Neill Corlett wrote (ElSemi quoted bits of it to me once but wasn't allowed to share).

The <<1 shifts are there because the AICA's COEF and MADRS are mapped to 32-bit aligned memory addresses.

For the DSP field definitions I did use the magical Neill document found here ---> http://www.neillcorlett.com/etc/myaica.txt

Well, I've figured as much. DSP is going to stay on my TO-DO list for quite a while then. Never hurts to ask though

EDIT: But then again, this one I didn't have. Must sleep now but will read tomorrow
As for the shift - there are 64 MADRS entries so the index is still one bit short?

I'm glad you pointed this out, though, since this is an error. MASA should be:

- UINT32 MASA=(IPtr[6]>>9)&0x1f;
+ UINT32 MASA=(IPtr[6]>>9)&0x3f;

The AICA has 64 MADRS as opposed to the SCSP's 32.

Nice.

This is the sound in question in soa-303-02-00: