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by SmartOne at 2:34 AM EST on December 17, 2009
GBA audio can be interpolated with VBA-M and viogsf.

JFD62780, that's already how it's done. The stored samples suck to begin with so the GBA can handle them.

The "non-public hack" of vio2sf uses Linear interpolation. He could have chosen Cosine instead or added a plugin configuration option.

edited 2:58 AM EST December 17, 2009
by agu fungus at 11:19 AM EST on December 17, 2009
VBA-M and viogsf only filter the GSFs, so you don't get high quality anyway. I was thinking, how about converting GSF to 2SF? As far as I know, the NDS contains 8-bit channels that VGMTrans cannot play. Just an idea.
by SmartOne at 11:42 AM EST on December 17, 2009
You mean the VBA-M interpolation happens after the channels are mixed? DeSmuME interpolates each channel and then mixes them?

Yeah, that would be an improvement.
by JFD62780 at 6:39 PM EST on December 18, 2009
Agu: whoa... you just went deep into my very mind for that idea, didn't you? :P

For that, I'm thinking we'll have to wait until a 2SF plugin comes up with the ability to select a method of interpolation for the final mix. ;)
by Elven Spellmaker at 1:38 PM EST on December 29, 2009
(Might go better in this thread than the other one.)

Does anyone know if Pokémon Soul Silver and Heart Gold have been tagged?
by Knurek at 2:41 PM EST on January 1, 2010
Oh fuck yeah!
Custom SDATS made by hand.
1568 - Tengen Toppa Gurren-Lagann (JP)
Good thing I've liked the anime so much. And good thing it works.
by JFD62780 at 4:58 AM EST on January 9, 2010
This just in: Vio2SF 0.22b has just been released. This public beta includes a method for selecting the interpolated mixing method involved in playback. (FINALLY!)

Granted the six (Six? There should be three!) methods might not be matched in labeling, possibly cause of the miscommunication involved in a (possibly) Japanese plugin being based on US-based source code. Still, I feel the "Cosine Interpolation" option is the way to go for now. (I tried "Cosine"; it was really a fancier form of Linear interpolation, really. :P)

That said, Agu Fungus's idea now seems legit: How about converting GSF to 2SF? >;)

edited 5:05 AM EST January 9, 2010
by Lunar at 7:18 AM EST on January 9, 2010
i forgot to mention that 0.22a fixed the weird echo issues with the heartgold/soulsilver tracks, so if you never got that update this one will cater for ya.

and just in case you didn't see yet, Elven Spellmaker, i tagged the set a few days back :)

nice to have some interpolation settings. i kinda like it turned off actually; nice a bright. the heartgold/soulsilver OST release seems to sound this way too.

edited 9:26 AM EST January 9, 2010
by agu fungus at 12:18 PM EST on January 9, 2010
I tried out the new release, now what needs to be fixed is all the popping sounds when played on some tracks. Kirby Super Star Ultra, for example.

And personally, I don't like the cosine interpolation. It's like mixing both uninterpolated and linear in one. I hope there are more interpolation options in the future, like cubic.

edited 12:23 PM EST January 9, 2010
by JFD62780 at 4:38 PM EST on January 9, 2010
Agu: I TOLD you they were mislabeled. Use "Cosine Interpolation", not "Cosine". It's the method all the way at the bottom.

And I agree with the more methods request. This thing needs 4-point Gaussian (SNES), 8-Point Sinc, hell, even Band-Limited Mixing!

edited 6:19 PM EST January 9, 2010

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