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Sounds for double engines dd35, dd35a, dd40a

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Charter Member · 131 posts

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Is it possible to have 2 engine sounds coming from 1 Engine file and having them rev at slightly different rates and how would I if I could?

Dwight / MSTS NG Goose#6
RGS Work Goose

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Charter Member · 4239 posts

RE: Sounds for double engines dd35, dd35a, dd40a

>Is it possible to have 2 engine sounds coming from 1 Engine
>file and having them rev at slightly different rates and how
>would I if I could? I believe I did that for the Auran DD40 and never released it....
If I can find it, I'll release it...
Chuck Schneider
(Virtual) CEO
North American (Virtual) Locomotive WorksSounds for double engines dd35, dd35a, dd40a – image 1

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Member since Apr-5-03 · 209 posts

RE: Sounds for double engines dd35, dd35a, dd40a

I think it's possible if you use double steams and slightly different wave files for 2 engine sound. But you need separate enging sound from other sound first. ( like krswen's gesnd10.zip )But if you want to emulate randomize RPM shift, that may be difficult, you may use 2 different long period (and RPM shifted) sound record or use randomize play play several slightly different engine sound files (2 steams at same time).

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Member since Aug-16-03 · 122 posts

RE: Sounds for double engines dd35, dd35a, dd40a

Sounds for double engines dd35, dd35a, dd40a – image 2

This may be stupid, but find a train with 2 locos that have turbo 645s.

Central U.S. Locomotive Works
Currently Being worked on:
DD35A-B, DD40, and SD45Xs
Future Plans:
Metrolink Bombardier Cars
Metrolink F59PH
Metra Car Set

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Member since Nov-30-03 · 1 posts

RE: Sounds for double engines dd35, dd35a, dd40a

Yes, it is possible. I'm not quite sure how steadfast you are in SMS File scripting, but thats the basic idea:1) Create the engine rev stream you want for one engine. Means, choose your file and fix up the speedrelated and load related pitch and/or volume curves. Test and tune until you're happy with it.2) Duplicate that stream as your second engine stream in the same SMS file. Tweak the volume and/or pitch curves to that it sounds a little different. For better test remove the first engine stream from the file and store it in an temporary file for later insertion.3) Once your happy with the 2nd sound stream, load the 1st sounds stream back from your temp file into the engines SMS file and see how it works.One suggestion also:
If you copy the same engine sound streams into ScalabilityGroup 0, then those sounds are also available for AI/Multiunit use.
I found out that creating a separate ENG-File for AI/Multiunit use with the same SMS file definition creates a better sound for a multiunit consist than using the same ENG-File twice in the conist.Don't ask me why.If you need assistance, post.Pittmike.

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Charter Member · 131 posts

RE: Sounds for double engines dd35, dd35a, dd40a

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PittmikeI have never done anything with a sound file before so what you said went right over my head. If you could break it down to the beginners level I'll try it!

Dwight / MSTS NG Goose#6
RGS Work Goose

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