Actually the diminution of sound pressure behaves exactly the same at 1:1 as it does in the modeling world. If you are twice as far away from the source, the sound pressure drops to 1/4 that at the original distance, per the inverse square law. Backing from two feet to four feet from a model loco diminishes sound pressure proportionally to backing from 100 feet to 200 feet from the real thing. Three times further reduces sound pressure to 1/9, etc. Of course there is variability in other ambient sounds/noises, which may affect perceived levels.
Fred Tolhurst Maryville, TN -----Original Message----- From: richgajnak <[email protected]> To: S-Scale <[email protected]> Sent: Sat, Apr 28, 2012 12:39 pm Subject: Re: {S-Scale List} tame that sound In the real railroad environment, the sound dissapates the further you get away from the locomotives. The problem is in a typical model railroad room the sound is always present because it doesn't dissapate much when the locomotive isn't more than a couple of feet away at it's furthest point. (Unless you got a really BIG layout...) Rich G. --- In [email protected], Edward Sauers <ehsauers1@...> wrote: > > Guys, >  > What would it sound like if you were in a busy area of real railroads? if the > real railroads had a lot of engines in one concentrated area it would be a > noisy place for sure!!!!! You can always use F8 if the sounds begin to get > too much for you. When you get up in age these things are only half as loud > as they use to be when you were younger!!!! >  > Ed Sauers > > > ________________________________ > From: Charles Weston <rotary-oy@...> > To: [email protected] > Sent: Saturday, April 28, 2012 11:02 AM > Subject: Re: {S-Scale List} tame that sound > >  > Having been in operating sessions with lots of noisemakers, it occurs to me > that what is needed is a system that would broadcast the sound to a set of > headphones worn by the operator. Nothing to disturb the other operators.  > Might get a better bass that way, also. > Charles Weston--- On Sat, 4/28/12, Bill Lane <bill@...> wrote: > > >From: Bill Lane <bill@...> > >Subject: {S-Scale List} tame that sound > >To: "S Scale List" <[email protected]> > >Date: Saturday, April 28, 2012, 5:31 AM > > > > > > > >Peter, > > > >I too am not a sound unit junkie. It will never be my intention to have > >sound units in every loco. I have a LOT of them. Some is because of the cost > >involved. If you are stuck on the Tsunami like I am you can use the > >Auto-mute feature. (Do other brand decoders have Auto-Mute?) On layout > >startup you program in second the amount of time the loco makes noise until > >it automatically mutes unless you make an action with it. Brilliant move if > >you asked me. I have a long way to go but expect to have sound units in ¼ > >to maybe ½  of my locos when I am done. In the somewhat limited time my > >current layout has been up I frequently turn off the sound units and listen > >to music when running the trains. > > > >You need to have some sound unit equipped locos especially for > >âentertaining guestsâ and possible layout open houses. > > > >Thank You, > >Bill Lane > > > >Modeling the Mighty Pennsy & PRSL in 1957 in S Scale since 1988 > > > >See my finished models at: > >http://www.lanestrains.com > >Look at what has been made in PRR in S Scale! > > > >Custom Train Parts Design > >http://www.lanestrains.com/SolidWorks_Modeling.htm > > > >PRR Builders Photos Bought, Sold & Traded > >(Trading is MUCH preferred) > >http://www.lanestrains.com/PRRphotos.xls > > > >***Join the PRR T&HS*** > >The other members are not ALL like me! > >http://www.prrths.com > >http://www.lanestrains.com/PRRTHS_Application.pdf > > > >Join the Pennsylvania Reading Seashore Lines Historical Society > >It's FREE to join! http://www.prslhs.com > >Preserving The Memory Of The PRSL > > >
