MoonSound effect chip

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By Gilvad

Supporter (1)

Gilvad's picture

25-08-2004, 14:56

Hi,

Sure I did think about it. We wanted the best of the best but sometimes you have to make compromises to make a product that actually fit's the market. We were not exactly making a product for pro music-studio's ;-)

1) Price (YSS225 + 2 or 4 x 256k psram ram-chips needed)
2) Size (Larger PCB needed, I wanted it to fit into the konami-sized box in the final version) 100 pin YSS225 plus 2-4 extra psram chips would take up too much space.
3) Poor effects routing
All voices going through the effect-chip would have to share the same effect algorithm: reverb, chorus, flange, delay, pitch-shift, EQ, wide stereo, SRS.
You can just send the sound through an external effect module and get the same functionality ;-) (I have used Modulizer Pro for that just for fun)
4) Sound quality
I wasn't satisfied with any PC-soundcards at the time because you could always hear a 'hiszzzzzzzz' from the graphics-card or just from the CPU. All due to poor design. They were (and most still are) useless because the sound is so filled with noise. There would be a big risk that we would get the same sort of hiss from the MSX if we put on extra digital chips with heavy activity.
5) Current consumption
With the effects processor and extra memories we would probably break MSX specifications of current consumption in 1 cartridge-slot. Again this would have given poor sound-quality on some MSX computers since we would get voltage drops when large currents are drawn.

But WOW I would have LOVED to make a MoonSound with effectchip ;-)

P.s. no I never got paid anything (nor intended to be) for doing MoonSound, GFX9000, IDE interface. When I politely asked MSX Club Gouda to actually be paid some royalties for my big-selling SCSI interface they just had someone make a few silly changes to the bios and then selling it under a new name so they didn't have to pay me NFL 2 per interface. (WOW! what a royalty ;-))

But it was all great fun to do!

Henrik Gilvad

By BiFi

Enlighted (4348)

BiFi's picture

25-08-2004, 14:59

I guess you never thought MoonSound would be such a huge success when you first designed it? Smile

By anonymous

incognito ergo sum (116)

anonymous's picture

25-08-2004, 15:04

Wow, a legend speaks! Big smile

I'm very glad to see you're still following the MSX scene, Henrik!

Could you tell us about your current activities, if any?

By wolf_

Ambassador_ (9971)

wolf_'s picture

25-08-2004, 15:09

We were not exactly making a product for pro music-studio's ;-)
Pro-studios wouldn't use a moonsound with reverb, this is just about end-users who get a better soundquality..
It seems 'normal' to divide amateurs and pros in terms of equipment, but that's not true.. the real difference is hobby/job .. and thus fun/$ . There are amateurs who have more synths/stuff than some professionals .. are the amateurs the professionals then, and the professionals the amateurs?

anyway .. nevermind Smile

A global reverb for orchestral music isn't a real problem .. after all, the whole orchestra sits in the same hall Smile That's actually the only useful effect.. the rest (chorus, flange, delay, pitchshift, SRS is just bogus-stuff that only uglyfies your tune Smile )

EQ as end-effect could be useful tho..

By anonymous

incognito ergo sum (116)

anonymous's picture

25-08-2004, 15:36

EQ as end-effect could be useful tho..

So you route your MoonSound's unfiltered, low-noise, hi quality output through an EQ. Presto Tongue

By wolf_

Ambassador_ (9971)

wolf_'s picture

25-08-2004, 15:49

o_O ? I don't get your point ..

By anonymous

incognito ergo sum (116)

anonymous's picture

25-08-2004, 17:29

The point being that there's no need for an on-board effects chip on the MoonSound cartridge. Unless you'd want to EQ each channel seperately...

By wolf_

Ambassador_ (9971)

wolf_'s picture

25-08-2004, 17:37

I'm talking about a global/mastering EQ, for all channels .. which isn't a bad idea at all. Sure, a seperate EQ for each channels is nicer .. but that's more like a mixing-EQ.

I'm talking about a 'mastering'-EQ, which basically means 'an EQ for the whole output'.. which is common practice for all studios and mastering-suites on this blue planet ..

By sunrise

Paragon (1091)

sunrise's picture

25-08-2004, 19:52

Henrik, would it be possible to do with the non konami-versions in your opinion.
Oh btw Koen asked me if you could send him the contents of de gal/peelchip of the GFX9000. I donot know if you have it still somewhere

Rob

By Sonic_aka_T

Enlighted (4130)

Sonic_aka_T's picture

25-08-2004, 19:59

>>> STUDIOS <<<

Not crappy 8bit homecomputer that needs every other part upgraded before we even look at the MoonSound again! Let's review shall we?

CPU: a crappy 3,58 MHz Z80 cpu which, with ints off, almost reaches a whole MIP!
Memory: Virtually none, 256kB minimum is pushing the boundry already.
Storage: A 720kB mechanical storage device with 10kB/s loading speeds.
Video: A real 16 color marvel with its very own 60kB/s blitter! (256cls if you don't mind having two banks)
Sound: A 24 channel wavetable card with 18chns of FM, 2MB ROM and 640kB SRAM.

Hey!!! I've got an idea! Let's upgrade the sound of this system!

What I mean to say is... Let's first make sure we all get Turbo-R's, hopefully GFX9000's and a CF IDE interface. After this we can consider looking at the MoonSound again. There's not much sense in stuffing it with 1MB of SRAM if we need to load it from a 720kB floppy at 10kB/s....

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