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DS games music looping and splitting by porocopi16 at 8:57 AM EDT on August 29, 2019
so uh this is gonna be kinda weird to stuff together.

so uh i was listening to Sonic Rush Adventure's rip of Big Swell, the final boss of that game and I researched for online versions and came across this:

They mention in the description that this version plays when you're not actually near the boss and that it's not in the sound test or any sound tracks.

So I fiddled with a rip of the song from a rom in vgmtrans to try and create a high quality rip, turns out it's just muting that one really frequently used high-pitched instrument in the song that would create the effect the game is producing with this song. Vgmtrans omits an instrument around the middle of the song, which i later found out was usage of the psg by another program that only semi-understood how it was meant to work, as it doesn't seem to be able to use it the same. I tried other programs, the psg either sounds off or it's not there.

I even looked up some tutorials other people were putting up on how you can alter the sequence file by changing it to a midi, deleting the track, turning it back into a sseq file, but all these omitted the psg instrument in the middle so that was fruitless.

I only have a temporary solution and that's one program called vg music studio could rip the song right from the SDAT and play it, and while the psg does play, it still sounds a little off. The song's name in the files in the correct sdat is SEQ_bossF.

i can provide a rip of the sound sdat from rush adventure if too confusing, but basically the songs get dynamically altered like how bfstms and the like have different channels they can phase in and out and it's not present in the rips i've seen and done thus far

and in talking about phasing in and out channels i wanna talk about another game on the DS that is practically unrelated in every way except that it similarly features these problems when listening to two tracks. Nintendogs, the bathing and walking themes

The bathing theme is dynamic because in-game when your dogs are really dirty they leave out this really dingy instrument that they slowly phase in as you clean the dog. Basically, there's no version of this song that i've ripped or seen anywhere that is aware of this dynamic.

and the walking theme as well. The rip that I've both done myself and seen on the site is stuck at the beginning part when you draw the line for your path, along with the fact no rip i've ever seen or done of the song omits the fast drums and/or the panting sample for the peeing/garbage respectively asociated with the walking game, nor has any rip ever really looped past the first part and onto the second part when you're actually walking where the song becomes far more cheerful and energetic.

in the rip on joshw, they're labelled as bgm 23 and 24, although my rip has them labelled as NTR-AD2E-USA-001b and NTR-AD2E-USA-001c

just want to account for dynamic tracks, if they were dynamic bf/r/cstms it would be simply using looping audio converter or txtps to choose channels but since it's on the primitive ds it's much harder

so yeah if such could be accounted for in the rips somehow that'd be appreciated

what also didn't help was i found a forum post from 2008 of someone claiming to want to isolate sound channels in the ds, and someone else's response was to use vio2sf in foobar to do it via the options, but no such option is present in foobar for the vio2sf plugin, just to allow songs to loop and the like, nothing about isolating channels or instruments.

so uh yeah sorry for the ramble but yeah if we could account for that like these songs here that'd be great.
by MoldyPond at 10:10 AM EDT on August 29, 2019
I'm not too sure how to go about editing 2SF files, but if it's any conciliation, there's always the walking theme that's been properly edited on the Touch! Generations soundtrack. For Sonic Rush, have you tried with the NCSF format to see if that gives you different results?
by porocopi16 at 10:37 AM EDT on August 29, 2019
yes but i want the version from the game too (for nintendogs) somehow all it requires is getting past that first loop somehow. And muting those other channels which is also impossible otherwise.

I really don't think it would matter because the ds plays songs through channels with instruments, no matter if it's a 2sf or an ncsf if the channel that plays that high-pitched instrument isn't set to be muted by default (like, flipped on and off by the game somehow) then it's not really any different from the rip on the site that still doesn't have that instrument muted anyway. I've also converted the soundtrack to ncsf before, and iirc big swell was the same, except slightly lower quality for some reason, nothing about muting that one instrument.

I realise my requests are really obscure, but my only information has been from forum posts and programs from 2008-2011, some of which don't really take into account the psg in the song, so it's still incomplete.

edited 10:37 AM EDT August 29, 2019

edited 10:42 AM EDT August 29, 2019
by ArcticJaguar725 at 11:36 PM EDT on August 29, 2019
I don't know nearly enough about how SSEQ works, but you could try hex editing the sequence itself. The MIDI conversions I've seen through VGMTrans tend to set the channel names as their SSEQ or SDAT pointers. You could try deleting or zeroing the unwanted data and see if it works. If that fails, you could also try looking through the VGMTrans or sseq2midi/midi2sseq source to see if there's a simple way to redefine the channels or channel count in the SSEQ header.

edited 11:38 PM EDT August 29, 2019
by porocopi16 at 3:20 AM EDT on August 30, 2019
well i can't do that for the sonic rush adventure song at least through vgmtrans because it doesn't account for that one use of psg in the middle of it like i stated.

i'll try cracking it, but i can upload to mega the sdats if anyone else wants to take a shot at it (both games use sdats iirc)

never edited a sseq file before though

edited 3:39 AM EDT August 30, 2019
by icecream at 2:37 PM EDT on August 30, 2019
If I am understanding this correctly (and please correct me if I'm not), then what you're asking for is impossible to achieve with an .SSEQ player alone. The phasing in and out is simply not present in any system that can play DS sequences, since that's controlled by the game and not the sequence. You'd have to do manually edit the sequence to even get it to sound exactly the way it does in game.

Though I am a bit puzzled as to why the PSG doesn't come back when you just edit the MIDI, since that's just programmed into the bank def...

edited 2:38 PM EDT August 30, 2019
by porocopi16 at 10:41 PM EDT on August 30, 2019
well i guess more of what i'm saying is i don't really want the track to phase in so much as it just not being there at all. like when you rip the bath theme normally it's just the 'clean' version where you would hear it at the end of a bath session if your dog was dirty after a while (which tends to happen if you don't care about the things for long enough). There's not been a version where the dirty dog version has been ripped, which would just require muting or zeroing out the track that plays the one instrument that normally phases in over time as the song loops.

Like for SRA and the bath song, you'd have to mute one track. For walking, you'd have to mute two (since peeing and garbage pant sample are two channels i think for their own purposes) and allow it to loop past the first portion it's usually stuck on because I usually also never see people ripping that part of it (it's why the song when extracted first starts at 3 minutes, cut a loop in half and that's still about a minute because it's got the cheerful bit in there as well from after you confirm the walk)

well i'm not sure, i tried editing the sseq very rudimentarily by grabbing it from vgmtrans (even without the psg since it doesn't recognise it for some reason) and deleting the track, and then attempted to with mid2sseq convert it back, my thought process was 'replace in-game how it sounds there then rip it again' but the second program couldn't convert the midi for some bizarre reason. Idk why, it just wouldn't do it

this was also after an old tutorial which half-explained how you should loop the song by placing markers in anvil studio and then exporting it as a special kind of midi.

so it's not real easy. I might as well link the sdats incase anyone wants to take a shot at it. The first one is the rush adventure one for big swell, the second one is nintendog's. I believe the nintendogs ones are sseq27 and 28, but that's off of Vgmtrans, if you find one the other's right next to it.!clZgySiT!JWXTL42N6rFily_ymugZfJ5-by9rmgAaI1J4YMrEEG4!YhQxSYrb!GR0fv7fIZNbhLOK7tB9CPAsJXRcz5k55rFFGFoobyR4
by ArcticJaguar725 at 1:20 AM EDT on August 31, 2019
What I was initially proposing was editing the raw SSEQ sequence itself. The converters (especially midi2sseq) unfortunately do not support all of the MIDI commands that SSEQ uses, so you'll most likely run into issues with data loss for some tracks. If you can get me a copy of the SDAT and tell me which sequences/channels need muting, I could try doing it myself too just to see if it's feasible.

EDIT: Whoops, thought you posted sequences for some reason rather than SDATs. Still need the channel info though. I haven't played either of these games, so I still don't know exactly what you're trying to do. The most useful info you could provide would probably be the channel names of the corresponding MIDIs generated by VGMTrans of whatever you want removed or zeroed from the sequence (e.g. Track: 0x118087), as this will likely result in the least amount of confusion for me. (This has to be done using conversions from an unmodified SDAT (or at least the one you uploaded) or the data will not match.)

edited 2:53 AM EDT August 31, 2019
by porocopi16 at 7:09 AM EDT on August 31, 2019
I kinda figured that, but they were all I could find on how to make it work since I'd never done it before.

alright well what i tend to do is I export from VGMTrans a midi with soundfont 2 and then in a program like synthfont it gives me a name that looks like an address and an instrument. I will try and provide as much detail as possible with prntscr (they're just pictures)

For Sonic Rush Adventure's, when I export the midi, the names appear like this channel 14 appears to have the instrument needed to mute it. "0x17F6" is a constant for all of them. It's SEQ_bossF like I previously stated.

For Nintendogs, it's a little different.

Here's the bath theme with the 'clean instrument' muted this one's SSEQ_27

The walking theme is a bit weird. In VGMTrans it starts with the part of the song that isn't cut in a loop, so this one's gonna be a bit complicated

1. The loop that it currently IS stuck on (which is the beginning loop), just with the two tracks muted
2. VGMTrans appears to start the song where the second loop of the song starts or close to, this bit hasn't been ripped anywhere, it's always just the loop that is before the walk so i don't know how skipping to the second loop works (as being on a walk can take a long time in-game so it has to have a loop for it as well as the bit when you draw your route, which is where it currently sits at)

So here's a pic of synthfont after extracting the midi it's SSEQ_0028 in the sdat i provided.

I hope I've provided enough info. SRA/bath: mute a channel. walk: mute two channels and find a way to get it off the first loop somehow as well because the actual walking part of the walking song is nowhere.

by icecream at 12:34 PM EDT on August 31, 2019
Well, even if you had a perfect MIDI to SSEQ converter, VGMTrans doesn't actually export all of the commands anyway so you'd still need to recreate those.

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