Stopping sounds?

As always, 3 points.


Well, currently I'm making a peelout, and I'm actually finished. But I have this problem: The SPO charge sound doesn't stop if you release before you may use it (you know, the delay). Because I suck at music hacking, I have absolutly no idea. Can anybody help me?

 

There's a sound effect in Sonic CD that exists solely for the purpose of stopping other active sound effects. Since you've assumedly ported over the peel-out sound effect, you should be able to port over this other one as well. If I remember right, it's directly after the peel-out sound effect, but I could be wrong.

 

I haven't ported the Peelout. I just used a Spindash, changed the anims and added a delay, which means, I still have the Spindash sounds. No idea how the Sonic CD Peelout works.

 

Just create a new sound effect with the same channel layout of the spindash sound and blank data, and play it in case the Peel-Out is cancelled. It should technically work.

 

I actually made one for this exact purpose. Lemme grab it..

Code:

dc.b $00,$0F,$01,$01,$80,$04,$00,$0A,$00,$06,$EF,$00,$80,$01,$F2

That's the entire sound effect. If it doesn't work, you see the "$80,$04"? Change the $04 to the right FM channel.


EDIT: Oh, and that sound effect is for Sonic 1. You may have to edit some of the pointers in it for Sonic 2.

 

You could just create a sound effect and put a $80 playing in the desired FM/PSG channels, thats what I had in mind when I was still creating the peelout.

 

As I already said, I can't do any shit with music, because I'm kinda noobish there... Hopefully I will get it one day. Points to Cinossu and nineko.


EDIT:

And again, no music skills. I'm using the normal Spindash sounds (the one on SR). So could someone tell me what the correct FM channel is?

 

That's exactly what the sound effect I posted does.

I don't know this myself off by heart, so the best thing to do is trial and error. Set to $80,$00, check, doesn't work? $80,$01, check, doesn't work? $80,etc.


Don't be afraid to alter things. The worst that can happen is that it doesn't work. The undo button is a good friend.

 

Ok, I tried it from $00 to $10, but without any luck. Maybe I made something wrong, because I'm a fool, but I'm not sure. Anyway, here is my exit code:



SPO_End_NoDelay:
move.w (SPO_StopSound).l,d0 ; "stop SPO charge" sound


jsr (PlaySound_Special).w


move.w #$60,($FFFFF73E).w ; reset looking up/down


move.b #0,$1C(a0) ; change anim to standing again


clr.b ($FFFFFEBA).w ; clear SPO flag


moveq #0,d0 ; clear d0


rts


; --------------------------------------------------------------------------------------------


SPO_StopSound: dc.b $00, $0F, $01, $01, $80, $04, $00, $0A, $00, $06, $EF, $00, $80, $01, $F2


even


; --------------------------------------------------------------------------------------------



I bet 5 bux, that I made something creapy wrong.

 

Yes, you're doing it really wrong. You have to add a new sound.


Go to "SoundIndex:" and look up the first free SoundXX available, it should be probably be in the DX range (D2, I think). Add it to the SoundIndex in the same format as the other ones. Don't use D0, it's special.


Look for the label to the last valid SoundXX in the sound index (e.g. "SoundD1:"), it should be an incbin in a long list of incbins.


Add the label for the sound you just added (e.g. "SoundD2:"), followed by Cinossu's dc.b and the even.


Change " move.w (SPO_StopSound).l,d0 ; "stop SPO charge" sound" with "move.b #$D2,d0 ; "stop SPO charge" sound". Done.

 

5 was the correct channel. One day I will have to do the real sounds, but for now, this is Ok. Thanks to everyone, who was helping me in this topic, especially Cinossu and nineko.