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New GEVO prime mover file

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Originally posted by kpack05 on the RailPro Users Yahoo! Group on Sep 15, 2015

I made a rather crappy video recording of the new prime mover file.  I lost my video camera and my recorder when we were recently robbed, so I was only able to use my cell phone to take the video.  As such the colors are off and the sound is sub-par at best.  You can't hear in the video many of the subtle tones in the actual prime mover file.  If I had my recorder you would.

Anyways, here it is.  I run through all 8 notches up and down, including startup and shutdown.  The horn at the end is mine, and I have uploaded it to the file section on this group.  Notice the turbo whine on the two upper notches, and how it hangs when the prime mover is throttled down....nice!  I feel the idle/notch 1 is a little overpowering compared to the others.  The air let offs and compressor are the old ones and those need to be replaced.  Tim says he has a great recording now of a GE compressor that he will use. 

This video is for group members only at this point as the file is still in beta.  When it is fully completed I will hopefully make a much nicer video that be available to all.

Railpro GE GEVO-12 revision 2 beta


-Kevin

Archive:
Originally posted by Laurence Weiler on the RailPro Users Yahoo! Group on Sep 15, 2015

Sounds great so far Kevin!  Any idea on a time frame when it'll be available?  I guess I need to get some more modern locos, 90% of my fleet is the EMD 645E3.  I wish that prime mover was as good as the GE sounds Ring is coming up with.  If they came up with something as good as the ESU, TCS or Soundtraxx EMD prime movers I'd be ditching DCC altogether.  In either case, it's great seeing so much improvement in the sounds of the prime movers!!! 

Laurence

Archive:
Originally posted by kpack05 on the RailPro Users Yahoo! Group on Sep 15, 2015

Bill - I'm using a set of four "sugar cube" or tablet speaker in series-parallel.  Three in the back and one in the front.  The volume is set down around 30-40%.  The clipping is still there if you run through the notches quickly.  That is more a software issue than anything else, so a recording problem.  Tim will need to roll out a new LM-2S revision in order to correct it.  It would be great if he could make it so the transitions blended together when revving up through multiple notches rather than hearing distinct transitions at every notch.

Laurence - I think pretty much any modeler that isn't in the steam or transition era could benefit from a good 645E3 recording.  I will definitely need it myself.  Tim said that he does have some good sources for several different prime movers, though he didn't say which ones (and I'm assuming he does not have the recordings yet).  I told him that the 645E3 should probably be a priority.  If we get a good recording along the lines of this GEVO one we have then I think we'll all be satisfied.

By the way, the GEVO file apparently was recorded while the loco (only one locomotive on the train) pulled a very heavy train, and never got over 25 mph so wind was not an issue.  I think the prime mover sounds different when it is actually under load, rather than just stationary running through the notches.

-Kevin

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