File 0000 DSi Sound

[Alvaro_130720]

Hello. I wanted to ask if anyone knows if there is any way to import/export the 0000 file that contains the audios of the DSi Sounds application. My childhood DSi has been bricked and I bought a new one, the photos can be imported into the camera app but the audios cannot and are important to me and I would like to have the new DSi just like mine. I don't know if GodMode9i through MemoryPit could replace the nand file with the one from my original DSi. If anyone knows if it's possible...

 

[KleinesSinchen]

How do you want to access the file from the bricked console? If you have the NAND backed up it might be possible to extract the data.

 

[Pk11]

GodMode9i cannot write to NAND so it won't be able to write it to SysNAND. Assuming you have the file from your old DSi, you can either use hiyaCFW and simply replace the file on the SD card or edit a NAND backup from the new DSi to use the file from the old one and restore the edited backup. hiya being the much safer of the two options.

iirc it's also possible to put the 0000 on a 3DS's TWLNAND and it'll read in the 3DS Sound app which actually lets you copy to SD, I've tried to do the conversion on PC but was never able to get it working right. It's apparently some kinda ADPCM but it doesn't sound quite right in any of the ADPCM variants ffmpeg supports.

Edit: Found my old testing on Discord, in ffmpeg these formats all sound kinda close, but nothing sounds correct:

adpcm_aica, adpcm_ima_apc, adpcm_ima_ssi, adpcm_ct, adpcm_ima_apm, adpcm_ima_ws, adpcm_ima_alp, adpcm_ima_oki, adpcm_yamaha

Correct: (Transferred to SD using 3DS Sound)
https://cdn.discordapp.com/attachments/286686210225864725/930427975378305024/V00041.m4a

VOX ADPCM at 16000 Hz in Audacity iirc: (all of the above sounded similar, this is just from a much older attempt at converting it when I tried Audacity)
https://cdn.discordapp.com/attachme...448907345980/voice01210426190341000410001.mp3 (Warning: Loud)
(Note: I think on GBATEK somewhere it mentions the correct frequency and it's not quite 16 kHz, even at the correct frequency nothing was quite right however)

 

[Alvaro_130720]

I had a backup of my old DSi, that's why I have the 0000 file. I didn't want to use Hiya on this DSi as I wanted it as my original, still thanks for replying

 

[nectar1ne]

hey! i just made a tool to do this!
github.com nectarboy dsi-sound-converter
the sound format actually is ima adpcm at 16384 hz. reverse engineering the binary reveals the same step size table is used, and further examination confirms the ima adpcm algorithm is used for encoding and decoding (the .dat files themselves contain a bit more info)