QUOTE (StealthSigma @ Dec 2 2009, 06:05 AM)

Read please. The third point is the most relevant. There is no technical requirements to pinpointing the location of sound. It doesn't say you have to have tacnet software running (pinpointing was mentioned in SR4, tacnets came from a later publication). It doesn't say under spatial recognizers that you need to have them to pinpoint. Unaugmented includes software, cyberware, bioware, or any other enhancement you can think of. All of those things only provide a bonus which can make it easier. Unaugmented or augmented, the results from success are the same. Strip it down and ignore the other factors. It means that a 3 intuition, 3 perception character with no further bonuses to his listen checks will get the exactly same information from a pinpoint action as someone with a spatial recognizer and a tacnet, assuming identical numbers of successes.
Make all the statements you want about it being the future and future tech. Unless the equipment dictates otherwise, the rules make no distinction between a technical and a non-technical method to yield results. If you can make a case on how an unaugmented human would be able to pinpoint the exact source of a sound, I'm all ears.
What? Is your argument that "because augmentation only adds probability to something which I find impossible, augmentation is basically like multiplying by zero," or what? How is that relevant? I mean, I read your post, I just didn't understand why you brought up unaugmented tests, and, now that I do know why, I wonder why you would even play a dice-based game if that's your thought process. For comparison, at a 1.5 kilometer distance, that hypothetical sniper could be shooting from the hip and his shot would only suffer a -3 penalty for the distance according to RAW. That's asinine, sure, but well within RAW. It doesn't mean that a skilled sniper using a bipod and a scope couldn't take a shot at that range and expect rounds on target. That's what difference tools make. Imagine the Enhancer is the scope, and the Filter is the bipod.
Disregarding that, whoever would be listening, even if the gun's unsilenced, would have a massive dice penalty for hearing the shot, much less finding the location of the shooter. -2 for Not in the Vicinity, an additional -3 for Far Away, and a bonus -2 for Distracted (assuming surprise) on the first shot. So, that's -7 dice leaving your hypothetical unaugmented guy a whole negative one dice to roll to even hear the unmuffled gunshot. For the 2nd shot, we'll drop the -2 from Distracted if the guy can make a Composure test (it's hard to hear things over chants of "Oh shit! Oh shit!") This would give the guy one whole one die to throw in an attempt to even hear that there is, indeed, a gunshot. That will never beat a threshold of 1, so it's still impossible for him to identify the shot. But, let's assume that the guy knows that someone is shooting and is actively listening for a gunshot. That's reasonable enough if we're talking about someone who is combat trained (familiar with the sound and apparent effects of taking on gunfire) and has sussed out that his position is being fired upon. So, assuming the guy had three more dice to throw based on Actively Listening for the sound, he could possibly beat the threshold of 1 (aka two hits, no glitch,) and identify the sound of someone shooting a gun in the distance. Goody.
So, now there have been two shots, and this guy is trying to pinpoint where the shots are coming from. So, knowing what he's listening for, he gets a +3 for Actively Listening, but a -2 for Distracting sounds (the echo,) added to the -5 dice for Distance giving him only two dice to throw to pinpoint the sound. But now we're no longer listening for something obvious, (the presence of gunfire,) instead we're trying to determine the Sniper's position, which is hidden amongst a huge section of possible terrain. So, for this test, we'll use a threshold of 4 to represent the relative obscurity of the snipers position amongst all possible points in the surrounding 1.5km radius. Therefore we're now rolling two dice at a threshold of 4 and we're back to the whole "never going to happen" conclusion. So, we make it an extended test. Again, assuming best possible result on all rolls, three more bullets have been fired and with two net hits, the unaugmented man has determined direction and distance. He now knows that there is a sniper firing on him from 800 yards away and can point his finger at the area. A great victory. Since we're assuming best case scenario, maybe he didn't even have 5 friends shot before he figured all that out. Is it so unreasonable to think that a person being shot at could figure out approximately where the bullets are coming from after so many rounds fired?
Now let's look at it from an augmented technofuture perspective. Here is a little text under the description for Tacnets (emphasis added):
QUOTE
Apart from the dice pool bonus and other benefits, players and gamemasters should keep in mind that the level of interaction tacnets provide ... They can analyze acoustics to determine direction and caliber of the weapon, and count spent ammunition.
So, that's not assistance in determining the source of a registered weapon sound. That is automatic functionality, built in. It can identify a gunshot, or silenced gunshot, and will instantly provide a heads-up AR arrow pointing at its source. Hopefully you're familiar with the modern (read: primitive) equivalent of this, the
Boomerang. Bringing it back to your earlier point, that's the difference between a guy with the tools and one without.
Without the Tacnet, to hear the shot, someone with a pair of kickin robot ears has +3 bonus with Enhancement 3 and +2 bonus for the shot Standing Out since a Select Sound Filter can cut out all ambient noise. Additionally, to trace the sound's source, he gets another +2 for the Spatial recognizer and doesn't get the -2 for the Echo Interference thanks again to his Filter. This means he throws 5 more dice than the Luddite to hear the gunshot, and 9 more dice to determine direction and distance. This goes a pretty long way to counteract the penalties caused by a sniper using a silencer etc.