Homebrew [Release] DSP Firmware Dumper

[Fatalanus]

Ah thank you, Rinnegatamante. I'm testing it now.

It works like a charm, now. Good job!!
Retroarch detect the dsp option. It's time to experiment!!

 

[Stack3r]

So just run this and itll dump dsp from a cartridge thats inserted? Or do i have to use braindump first then use this? Because i cant find the dsp file anywhere

 

[Twili]

If the DSP firmware is in code.bin of a ROM, can't we just search for DSP1 in code.bin to locate it? I wonder why there isn't progress with emulating sound if it's right there, or why it needs to be extracted...

 

[zoogie]

If the DSP firmware is in code.bin of a ROM, can't we just search for DSP1 in code.bin to locate it? I wonder why there isn't progress with emulating sound if it's right there, or why it needs to be extracted...

The Citra devs have this hangup that DSP = copyrighted code or something.

 

[Twili]

Oh, you extract DSP1 to use it in homebrew. I'm mad, though, because people could have done this ever since there was a public solution for decrypting ROMs. Nobody said a word about or payed attention to this page:

http://www.3dbrew.org/wiki/DSP_Binary

Just find that in code.bin.

 

[Rinnegatamante]

So just run this and itll dump dsp from a cartridge thats inserted? Or do i have to use braindump first then use this? Because i cant find the dsp file anywhere

Maybe if you read OP...

This problem appears only for non-2.5 *haxs users cause new payloads have a built-in dsp firmware. What this homebrew does is to extract this firmware and let you use it on 3DS/CIA homebrews or on NH 2.1 or lower.

 

[TheCruel]

Oh, you extract DSP1 to use it in homebrew. I'm mad, though, because people could have done this ever since there was a public solution for decrypting ROMs.

Well, DSP wasn't implemented in ctrulib until more recently, so it wouldn't have been useful.

 

[The Real Jdbye]

Oh, you extract DSP1 to use it in homebrew. I'm mad, though, because people could have done this ever since there was a public solution for decrypting ROMs. Nobody said a word about or payed attention to this page:

http://www.3dbrew.org/wiki/DSP_Binary

Just find that in code.bin.

People hadn't figured out how to actually use the DSP, which was why everyone was using csnd (which is easier to use, but most things don't have access to it, so it was problematic.)
It probably took some serious reverse engineering for that to be included in ctrulib.

 

[Twili]

Where in libctru is the DSP functionality? I looked and couldn't find it.

 

[zoogie]

Where in libctru is the DSP functionality? I looked and couldn't find it.

Great Refactor branch.
https://github.com/smealum/ctrulib/blob/great-refactor/libctru/include/3ds/services/dsp.h

 

[Twili]

Now let's see Citra add sound support...

 

[Subtle Demise]

The Citra devs have this hangup that DSP = copyrighted code or something.

This copyright bullshit needs to have limits put on it. You can't just make copyright claims on bits and pieces of a work, it's all or nothing, Nintendo. That's like someone making a claim on anything digital because the binary code present could be used to reconstruct one of their copyrighted works.

 

[Heran Bago]

Would a .cia version be possible, or does it require hax 2.5?

I can't run *hax at the moment. I put code.bin from a decrypted backup into /3ds and ran retroarch, but it doesn't do anything - no dspfirm.cdc file is created and I can't switch it to the dsp driver. Just can't get that dsp driver file.

 

[ihaveahax]

Would a .cia version be possible, or does it require hax 2.5?

I can't run *hax at the moment. I put code.bin from a decrypted backup into /3ds and ran retroarch, but it doesn't do anything - no dspfirm.cdc file is created and I can't switch it to the dsp driver. Just can't get that dsp driver file.

I believe it needs *hax 2.5. since you can use .cia files you should check out https://github.com/yellows8/hblauncher_loader

 

[Rinnegatamante]

Would a .cia version be possible, or does it require hax 2.5?

I can't run *hax at the moment. I put code.bin from a decrypted backup into /3ds and ran retroarch, but it doesn't do anything - no dspfirm.cdc file is created and I can't switch it to the dsp driver. Just can't get that dsp driver file.

It requires 2.x haxs cause dsp firmware is dumped from the payload.

 

[Anubis]

How exactly do you get code.bin?

 

[nyder]

I don't see this program on your site.

 

[tivu100]

I don't see this program on your site.

Go to Free Work tab. Download is under 3DS homebrew

Can it improve performance in any way?
Also, how do I use the dspfirm.cdc in retroarch?

Edit: Seems it has to beplaced in RetroArch/cores/system/
No wait nevermind, has to be in /3ds/ for some reason... i think?

Same question: So I already dumped dspfirm.cdc. What should I do next to use it with RetroArch CIA?

Let me know when you find out the solution !

Edit: Just saw this is supposed to be the answer for my question:

It can improve a lot audio quality cause it can use different kind of interpolation (like the polyphase ones) and also have support for audio surround (still under research from fincs / Lectem).

To use dspfirm.cdc you just have to launch the homebrew. It place the firmware automatically in the directory Retroarch and all the others homebrew will go looking for

Still I don't get it. So the dspfirm.cdc is currently is in the 3DS folder (Patch SD root:\3DS\dspfirm.cdc)

How can I make Retroarch CIA to use this DSP firm? I tried to go to Audio settings and DPS plugin and navigate to 3DS folder but retroArch couldn't recognize this as plugin.


Update: Found the explanation how to use this plugin for retroarch from this post https://gbatemp.net/threads/retroar...ly-builds-included.400913/page-6#post-5764286


New question: is this dspfirm is unique for each 3DS or it is the same?

 

[nyder]

Go to Free Work tab. Download is under 3DS homebrew
...

thanks!

 

[weatMod]

@Rinnegatamante,
Are you saying if I am on *Hax 2.5 I do not need to do anything with DSP?

To be honest all I understand is that DSP is supposed to be a better audio output and I am trying to figure out if I need to get it or not.

i think you still need the dsp dump even if you are using hax 2.5

i think that this is bullshit , i am using hax 2.5 and CHMM2 still does not work for me

i still get sound module error code

i am using rxtools on N3ds xl US with 9.5 rx-e emunand
install the cia of CHMM2 it don't work at all have to go to HBL in emunand, launch menuhax installer, delete menuhax (on emunand)
then CHMM will initialize after pressing power but always throws back sound module error

CHMM2 2.5 should never have been released or not for CIA or with a disclaimer or something
it not even worth all the aggravation and if you do eventually get it "working" the sound will not even loop , so it is really not worth it at all
it should have been labeled alpha or something, people should just stick to the 1st version of CHMM and wait till the next version ,unless they want to be beta testers, this one is WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaay too much trouble much more trouble than it is worth , too much aggravation for something as trivial as custom themes, i was happy just using the 1st version or even extdata tool
this thing is a nightmare