Original Supersonic Bullet mod by survivorgrim

General discussion of the Project Reality: BF2 modification.
sofad
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Post by sofad »

i want to try to explain the stereo vs. 3d problem a bit more..

stereo sounds are two seperate sounds, one for your left and one for your right speaker, played together with a fixed volume relative to eachother.

e.g. take a moving car sound.
in a stereo file a car moves from left to right. it starts with left speaker = low volume, right speaker = no sound. in the middle of the sound youll have both speakers the same high volume, where the car passes you and at the end youll have no sound at the left and a fading out low volume sound on the right speaker.


in a 3d game enviroment we can render our own stereo/surround sounds.
sound sources can move in this 3d world, in relation to your point of view.

take the example from above.
yull see and hear the car moving from left to right. you will more or less get your sound like the stereo one from above. but if you turn around ingame, the sound will change to a right to left moving sound (and front to rear for surround systems).

but the car sound itself that is used in the 3d world is a mono sound. it has to be mono. you cant move a stereo sound around in a 3d enviroment, cause the left and right channels are fixed.

in RL all sounds are mono sounds! even your speakers are! each single speaker is a mono soundsource in a (real)3d world.
youll only get a stereo sound when you have a speaker that plays the left part of your stereo file and one for the right part, in the right distance to eachother and your ears.


the ingame gunfiresounds that you hear in the first person, aka your own gunfire, are stereo files. they can, cause your point of view in relation to your own gun will never change. thats why your own gunshot sounds more dramatic and intense then the one from your mate next to you. (cause you hear his gunfire as a mono sound in the 3d gameworld, rendered to a sound that fits to his position and distance to you).

and so it is for the bullets that pass near you and triggering the bullet crack sound to play exactly where the event is happen in relation to your position.



so, hopefully now it is not more confusing then before, with me and my poor english trying to explain a more or less complex, technically problem.. ;)
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OkitaMakoto
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Post by OkitaMakoto »

[R-DEV]sofad wrote: so, hopefully now it is not more confusing then before, with me and my poor english trying to explain a more or less complex, technically problem.. ;)
Yepp. Makes sense. It was what i was thinking(but had no idea how to say it)

Your english came across crystal clear considering the complexity of the topic :)
Thanks
SiN|ScarFace
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Post by SiN|ScarFace »

Just a thought, what if I were to change these sounds from stereo to mono, would that make the 3d effect work again?
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Jaymz
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Post by Jaymz »

sofad, your english is perfect. It's just that this thread has more idiots than a fox news christmas special.

Lads, read his enlightening post at the top of this page. If you still don't understand, I feel sorry for you :p . Basically making them stereo sounds would cause so many problems that it would not be worth the reward of having a more immersive sound.

Also note that sofad is always right :mrgreen:
"Clear the battlefield and let me see, All the profit from our victory." - Greg Lake
SiN|ScarFace
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Post by SiN|ScarFace »

So what would changing them to mono cause?
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Doc_Markus
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Post by Doc_Markus »

The sounds still sound quite good if you render them mono, but I don't know if they sound any better than the sounds in-game - maybe they even are? I would not know...

[Ed: Stuff not true]

Btw: IRL/IRD it would seem to be very hard to calculate/guess where the bullet is coming from by the sound of the bullet crack, b/c it just gives you an impression on which side it just missed you. Remember that it is the shock wave from the supersonic bullet (creating a V shaped shock front), having nothing to do with the gun that fired the bullet.

On the other hand I have never been shot at (or at least I have never noticed).

Any experience how loud the crack really is?
Last edited by Doc_Markus on 2007-11-26 22:32, edited 1 time in total.
Reason: Simplyot true...
MadTommy
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Post by MadTommy »

[R-DEV]sofad wrote:tbh madtommy, but i think you missunderstood something.. ;)
hehe wouldn't be the 1st time. :roll:
sofad
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Post by sofad »

the bullet cracks that are ingame now are basically the ones from the original creator. with his permission to use them, i had to edit them to be mono at the first place and squeeze the last bit of power out of them. and i added some bullet travelling sounds after the crack to have more variations.

edit:

and i didnt used the cracks for the impacts, cause these would never be realistic.
you would hear the crack when the bullet is passing you and not on the impact, 10 meters away...
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Doc_Markus
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Post by Doc_Markus »

Thanks for the link, interesting read.

The comparison with the whip suggests it should be quite audible (in quiet surroundings).

So now I am sure I've never been shot at... ;-)
Sabre_tooth_tigger
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Post by Sabre_tooth_tigger »

I heard some awesome ricochets the other day when a sniper was trying to hit me at maximum range, seems to happen more on metal when hitting at an oblique angle or Im I just imagining that because I dont hear it as much normally
SiN|ScarFace
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Post by SiN|ScarFace »

When I compare the fly by sounds the old ones seem much louder and more sharp. Sounds are subjective I guess.
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sofad
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Post by sofad »

youll get ricochets (only the sounds, unfortunatly not the bullet itself) when firing at hard surfaces on a low angel.
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Rico11b
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Post by Rico11b »

If you want louder sounds then turn up your volume. I turn my volume of a lot while playing PR. That way I get the **** scared out of me, when a gun goes off nearby. Not to mention is helps to immerse into the game better. Rifles are supposed to be loud, so turn the dam volume up on you headset and get on with it.

R
Sabre_tooth_tigger
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Post by Sabre_tooth_tigger »

A 5.1 setup sounds nice failing that try some quality earphones and you will hear the difference. I can hear rallypoints and track them by sound alone, same with people walking up to me - you hear the grass rustling
[R-DEV]sofad wrote:youll get ricochets (only the sounds, unfortunatly not the bullet itself)


That'd make for some funny tk

SiN|ScarFace
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Post by SiN|ScarFace »

I can hear everything just fine, but I'd rather not be deaf at 30 so I'll keep the sound volume down. It's ok, as long as I can change things to my taste I will.
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