1. Canzah

    OP Canzah GBAtemp Fan
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    This is my first release for 3DS, which happened thanks to a lot of help I got from Huntereb who helped me figure out the rom repacking process.
    This will replace the English voiceovers in SMT4 with the original Japanese ones.
    It works with the DLCs since all the DLC data is actually locked on the ROM, similar to Disc-Locked DLCs on PS3/X360.

    You need Gateway or a 3DS with 4.5 CFW in which case you'll have to convert the rom to CIA yourself.
    You will also need the original Shin Megami Tensei IV US-Region ROM (Shin_Megami_Tensei_IV_3DS-VENOM).
    I plan on making EU-Region compatible version as well once someone dumps the ROM for it.

    The Undub comes in two variants:

    Variant 1: Japanese audio, but English movies (good for first time players)
    Variant 2: Japanese audio and Japanese movies (recommended for people who are replaying the game)

    The reason for it is that the movies are hardsubbed, similar to how Funimation streams their anime.
    Japanese movies have kanji subs hardsubbed into them, Englishb ones have english text hardsubbed.

    Should 3DS movie format be reverse engineered in the future, then I'll make a v1.0 version of the undub.
    It'll be using English movies but audio from the Japanese movies, remuxed together.
    For now it's impossible due to the moflex video format used by some 3DS applications and games (SMT4 is one of them).

    If there's any developer willing to reverse engineer 3DS's .moflex video format, I'd very much appreciate it.

    How to patch your ROM with the Undub Patch:
    1. Open unpack all the files from the archive into a folder and place your SMT4 ROM in it as well.
    2. Run xdeltaUI.exe and select "Apply Patch" tab.
    3. Press the "Open" button next to the Patch section and pick one of the two undub variant patches.
    4. Press the "Open" button next to the Source File section and pick your SMT4 ROM.
    5. Press the "..." button next to the Output File section and pick where to save the patched ROM (for example SMT4Undub.3ds).
    6. Press the "Patch" button on the bottom and wait until the process is completed (it will take a while depending on your PC).
    7. You will get a message once the patching process has been completed, then you go and play your newly patched undubbed ROM.

    I will not be providing pre-patched ROMs in the topic as it's now allowed by the forum rules.

    Download Link for the Undub Patch version 0.9 here:

    *removed link by Cyan*
    Contains illegal files from one game to place into the other game.
    A 3GB patch, really? packing game's file inside a container (zip, rar, xdelta, etc.) is not allowed here. It's like providing the full game but in .xdelta format, using a patch to provide full official original files is still illegal.
    Proper way to make undub patches it to ask users to have both games, and make a patcher to extract/switch files/repack.


    EDIT:
    Since Cyan is inept and unable to realize that it's impossible to make a simple batch for the process (due to a lot of manual work with the files, it's not a simple copy and paste of Jap audio) and the fact a live 3DS is required to even decrypt the roms in the first place, I recommend everyone who wants this undub to simply go to <snip> and grab it there. Alternatively <snip> if you have an account.
     
    osvaldo_23, oiie, vaan_oct and 26 others like this.
  2. cearp

    cearp 瓜老外
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    not really for me, but great work for doing this! thanks for sharing :)
     
  3. Manki

    Manki Member
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    It's nice to see a undubbing project. Great work.
     
  4. Heien

    Heien GBAtemp Regular
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    Amazing! I was planning to replay SMTIV but an undub version? It will be more amazing! Thanks!!
     
  5. Canzah

    OP Canzah GBAtemp Fan
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    Oh and I should also add that this works with the DLCs since all the DLC data is actually locked on the ROM, similar to Disc-Locked DLCs on PS3/X360.
     
    GaaraPrime and Home_Rowed like this.
  6. Antonio Ricardo

    Antonio Ricardo GBAtemp Fan
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    I want to play Professor Layton Azran Legacy and put English audio on spain game version.
    (play with English audio and keep subtitles in spanish).
    What i need to do?
     
  7. greeeed

    greeeed Member
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    Thanks, I guess it was good idea to not play SMT IV till now
     
  8. Canzah

    OP Canzah GBAtemp Fan
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    You'd need to unpack the roms of both games, modify RomFS of the Spanish version with English version's audio files, repack RomFS and then repack the rom itself.
     
    Antonio Ricardo likes this.
  9. Ashtonx

    Ashtonx n0l1f3
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    Awesome :D Do you plan on doing devil survivor overclocked ? I've been holding back on this one hoping for an undub.
     
  10. descac

    descac Advanced Member
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  11. Canzah

    OP Canzah GBAtemp Fan
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    DeSu OC and Soul Hackers are my next targets yes.
     
    Ashtonx likes this.
  12. Ashtonx

    Ashtonx n0l1f3
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    ^_^ you just made my day :D
     
  13. yonex204

    yonex204 GBAtemp Regular
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    Wow this is like a dream come to true!
    hopefully games like Persona Q can be undubbed later in the near future
    Thanks for this.
     
  14. Purple_Shyguy

    Purple_Shyguy GBAtemp Maniac
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    IS this the first official public 3DS game patch release?

    NOICE.
     
  15. hippy dave

    hippy dave BBMB
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    Yep, nice milestone. Congrats!
     
    supermalloch likes this.
  16. Canzah

    OP Canzah GBAtemp Fan
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    I guess it is, hehe. Still Huntereb was of great help with actually teaching me the process of repacking.
     
  17. Ashtonx

    Ashtonx n0l1f3
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    Btw games have different video formats ? cos normal videos can be converted back and forth afaik.
    https://code.google.com/p/3dsexplorer/

    btw the patch is huge, damn mega is going slow T_T
     
  18. Canzah

    OP Canzah GBAtemp Fan
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    Those are just AVI for use with Nintendo Video application, it's entirely different from moflex.
     
  19. Ashtonx

    Ashtonx n0l1f3
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    Sucks ;/

    oh well, thanks to checking it out again i'm now able to convert my 3d pron to my only 3d screen.
     
  20. Askedforthis

    Askedforthis GBAtemp Regular
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    Fantastic! Great work. It's great to see undubbing on the 3DS becoming a thing as a lot of the Atlus dubbing (see SMT, Etrian Odyssey and more) is absolutely atrocious.

    Hopefully you'll stick around to undub Persona Q as well, otherwise I'll need to do it myself. But good job on this one, good to see some proof that undubbing is indeed possible with today's tools.
     
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