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Re: Leaving Station?
Author: fkrock
Date: 09-28-2016 - 11:42

Thoughts Wrote:
-------------------------------------------------------
> This got me thinking. I talked to a speaker
> expert a few months ago who does acoustic and
> audio engineering for PA systems in buildings. He
> said there is a directional speaker that can
> project sound like a beam down a narrow path.
> Sooooo... why don't "they" make train horns that
> work that way? Might help?
>
> PS. The sound of SMART horns sucks profoundly.
> No wonder babies are crying.

Sound can be projected in a specific direction from special loudspeakers. However the beam is not very narrow and the sound can be reflected in different directions by objects in the beam.

Required volume level of locomotive horns is specified in detail in FRA regulations.

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Subject Written By Date/Time (PST)
  Santa Rosa seeks SMART quiet zones The Odd Duck 09-27-2016 - 23:59
  Leaving Station? crmeatball 09-28-2016 - 08:11
  Re: Leaving Station? An Observer 09-28-2016 - 08:32
  Re: Leaving Station? Berg 09-28-2016 - 08:41
  Re: Leaving Station? mook 09-28-2016 - 08:49
  Re: Leaving Station? Thoughts 09-28-2016 - 08:52
  Re: Leaving Station? Berg 09-28-2016 - 09:05
  Re: The long and the short of it......? BOB2 09-28-2016 - 10:43
  Re: The long and the short of it......? Craig Tambo 09-28-2016 - 11:40
  Re: The long and the short of it......? Max Wyss 09-28-2016 - 14:38
  Re: The long and the short of it......? BOB2 09-28-2016 - 16:45
  Re: The long and the short of it......? Max Wyss 09-28-2016 - 23:55
  Re: The long and the short of it......? theconductor 09-29-2016 - 11:08
  Re: The long and the short of it......? mook 09-29-2016 - 15:47
  Re: The long and the short of it......? Dr Zarkoff 09-30-2016 - 01:20
  Re: Leaving Station? fkrock 09-28-2016 - 11:42
  Re: Santa Rosa seeks SMART quiet zones clipper841 09-28-2016 - 11:55
  Re: Santa Rosa seeks SMART quiet zones Berg 09-28-2016 - 12:49
  Re: Santa Rosa seeks SMART quiet zones mook 09-28-2016 - 13:20
  Re: Santa Rosa seeks SMART quiet zones Dr Zarkoff 09-30-2016 - 01:25
  Re: Santa Rosa seeks SMART quiet zones clipper841 09-30-2016 - 10:12
  Re: I agreee totally most of these new fangled train horns do suck..... BOB2 09-28-2016 - 13:42


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