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expansion sound on hardware Posted: 2011-02-17 03:12 Reply | Quote
_node



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#13233
has anyone got a nsf to run with the expansion sounds running on a cartridge. not a powerpak but an actual cartridge. is it possible? does vegaplay support this?

Posted: 2011-02-17 04:36 Reply | Quote
KuroBit

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#13237
Well for one, I know expansion chips are only usable on Japanese FamiCom systems, I'm pretty sure the NES had no support for any kind of expansion chips (and if it did, none of them where for sound).

If you're doing what I think you're doing, the only solution might unfortunately be to record the NES-compatible channels on the actual NES and then record the rest on the PC or something...

(Also, if anyone wondered or cared where I went, I haven't had internet for around two or three weeks :P.)

Posted: 2011-02-17 05:48 Reply | Quote
TechEmporium

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#13243
Most of the expansions used by the NES were for mirroring & extending PRG/CHR data capacity; I haven't found a single non-Famicom game that used expansions for extending audio channels so far. We both could be wrong, though.

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Posted: 2011-02-17 05:59  (Last Edited: 2011-02-17 06:00) Reply | Quote
tdude10

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#13245
I think castlevania 3 did.

Never mind. i just wikipedia searched it. I was wrong.

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Posted: 2011-02-17 13:17 Reply | Quote
_node



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#13252
From Wikipedia:
MMC5
Manufacturer: Nintendo
Used in 16 Games:
Castlevania III: Dracula's Curse(NA/EU), Just Breed, Metal Slader Glory, Laser Invasion, Uchuu Keibitai SDF, Nobunaga's Ambition II, Nobunaga no Yabou - Sengoku Gunyuu Den, Bandit Kings of Ancient China, Romance of the Three Kingdoms II, Uncharted Waters, Aoki Ookami to Shiroki Mejika - Genchou Hishi, Gemfire, L'Empereur, Ishin no Arashi, Shin 4 Nin Uchi Mahjong - Yakuman Tengoku, Kirby's Adventure
The MMC5 was Nintendo's largest mapper. It was also the most expensive, making developers avoid it. Only Koei seemed to use this chip regularly in their games once it was released. The chip has 1 KB of extra RAM, extra sound channels (two square waves), supports vertical split screen scrolling, improved graphics capabilities (making 16,384 different tiles available per screen rather than only 256, and allowing each individual 8x8-pixel background tile to have its own color assignment instead of being restricted to one color set per 2x2 tile group), highly configurable program ROM and character ROM bank switching, and a scanline-based IRQ counter.[7]

If the MMC5 mapper provides 2 more square channels wouldn't these be playable through a NES because the cartridge is suppling the hardware? I also remeber reading that you can solder a resistor to some pins and an output to get the expansion sounds.

How does the powerpak work for the extra sound modules? Does it just emulate? I don't have a powerpak can anyone even confirm that it will play the extra channels?

Posted: 2011-02-17 13:49 Reply | Quote
MovieMovies1

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#13253
Well, the NES has the audio expansion pins moved to the expansion slot, because of the disk system, but since it was never released out side Japan, it was left unused.

Posted: 2011-02-17 14:27 Reply | Quote
Ryukenden

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#13255
By the way, in MMC5 channels Square 1 & 2 were not always used.For example,Uchuu Keibitai SDF,Castlevania 3-Dracula's Curse.

Posted: 2011-02-17 15:41 Reply | Quote
vgthing

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#13256
I have a PowerPak. It plays extended audio only if you do the resistor mod.

Posted: 2011-02-17 16:58 Reply | Quote
jrlepage
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#13257
And even then, it doesn't support all expansions. The VRC7 and MMC5 aren't supported yet, IIRC.

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Posted: 2011-02-17 20:18 Reply | Quote
_node



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#13263
that answers that question! glad i didn't ruin a castlevania 3 cartridge.

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