If anyone has ever looked at the various sound decoder offerings out there, many of which won't fit in an N-scale engine I know, you'll see you need all sorts of info to pick exactly which decoder to buy.
For example:
72800 ALCO motor 244 12cylinder turbocharged with WABCO A-2
72801 ALCO motor 244 12cylinder turbocharged with WABCO E-2
72802 ALCO motor 244 12cylinder turbocharged with Leslie A-200
72803 ALCO motor 244 12cylinder turbocharged with Leslie S3
72804 ALCO motor 244 12cylinder turbocharged with Leslie S5
72805 ALCO motor 244 12cylinder turbocharged with Nathan K3
72806 ALCO motor 244 12cylinder turbocharged with Nathan M3
72807 ALCO motor 244 12cylinder turbocharged with Nathan M5
72808 ALCO motor 244 16cylinder turbocharged with WABCO A-2
72809 ALCO motor 244 16cylinder turbocharged with WABCO E-2
72810 ALCO motor 244 16cylinder turbocharged with Leslie A-200
72811 ALCO motor 244 16cylinder turbocharged with Leslie S3
72812 ALCO motor 244 16cylinder turbocharged with Leslie S5
72813 ALCO motor 244 16cylinder turbocharged with Nathan K3
72814 ALCO motor 244 16cylinder turbocharged with Nathan M3
72815 ALCO motor 244 16cylinder turbocharged with Nathan M5
Now, assuming I knew the loco I was interested in had an 244 engine in it, how would I find out if it had a 12 or 16 cylinder version, if it was turbocharged, if it has dynamic brakes, and what kind of horn?
And to start this, how would I figure out what type of engine was in the loco?
IE, say I wanted to add sound to a Lehigh Valley PA loco. I know enough that I can say it is an Alco built engine. Then I'm stuck. How/where do I go to find out the rest of the info? Or do I just look at the list and say that there are 21 of these and just pick a random one of those 21 for my loco?
In a way I like the MRC Brilliance N-scale decoders. It is a 'diesel' decoder, period, I don't have to think at all. Then again, if I were to stick 1 of these in 5 different types of locos, odds are in the real world they'd all sound different but in my N-scale one they'd be all the same.
And to somewhat answer my question, I did a search on "Alco 244" and was able to determine the 12 cylinder engine went into the FA and the 16 cylinder in a PA. Does this mean I have to go through the list of dozens of types of engines and do a search on engine type and hope I find a page done by someone for some railroad where they were specific enough to mention the type of engine in that railroad's loco and just assume the loco I want to put sound in has the same thing?