GP40 Sound file

I have 6 ProtoSound 3.0 GP40's and 1 SD40-2 and they all have the correct EMD 645E3 turbocharged 16 cylinder diesel engine. This is actually one of MTH's best sound files.

So I’m either doing something wrong or somehow ended up with 2 incorrect files. What are one of yours please? I’ll the that.

edit. Disregard as yours are 3.0

here are 2 ps 2 3-volt sound files!

Alan

Thank you. I’ll try them tomorrow. Appreciate it!

So I'm impatient and couldn't wait so i tried the Penn Central file. Connects, uploads file, says complete, engine starts, and its still a blower engine... I'm stumped...

Ok, so I jumped on youtube, and every ps2 GP40 video has blower engine sounds! Must be a MTH mistake. I guess my best option is to load SD40 sound files into it. Only problem i can see is click clack of rails being wrong, although I've never paid close enough attention to know if they are correct as per the number of axles.

Edit.. My best guess is they used the GP38 sound file for the GP40. Would be no difference other than turbo vs blower.

What sound files have you been uploading?

Its not a blower, its the turbo. MTH has a 645 file with a turbo whine that is absolutely ear splitting above about 32 scale MPH. Authentic or not, its downright intollerable to listen to, and I suspect its an issue with the sound mixing in the file being out of balance.  It will probably take trial and error of all of the production runs of GP40s and SD40s to find a file that is acceptable.

The file that it came with is for sure 100% blower (I work on them everyday so I don't think I'm just hearing things). You can even hear the distinct dual exhaust outlet that is especially noticeable during startup. I've tried 3 GP40 files and then listened to numerous ones on youtube and they are all blower engines. Just loaded a SD40-2 and it is correct, as in it is a turbo.

I’ve had the opposite situation, my east penn and EJ&E GP38’s have a turbo sound set

@Boilermaker1 posted:

Its not a blower, its the turbo. MTH has a 645 file with a turbo whine that is absolutely ear splitting above about 32 scale MPH. Authentic or not, its downright intollerable to listen to, and I suspect its an issue with the sound mixing in the file being out of balance.  It will probably take trial and error of all of the production runs of GP40s and SD40s to find a file that is acceptable.

Yeah, it's the 5th RPM level - it sounds like a high-pitched whistle. It's replicated on the ESU 645E3 sound file but nowhere near as shrill sounding.

Like you stated, it probably has something to do with the sound mixing process. Too much of one sound and not enough of another to provide adequate balance.

I had a ProtoSound 3.0 CSX GP38-2 with the same issue as Chris, a turbo-charged EMD sound file.

Well at least I know I’m not the only one that ever had an incorrect sound file from the factory. I loaded the SD40 file in and it sounds great now.

@David K. Simpson posted:

Well at least I know I’m not the only one that ever had an incorrect sound file from the factory. I loaded the SD40 file in and it sounds great now.

I’ve got a bunch of things with e-bells and physical bee et low on them... the worst with an ebell? NYC FA set.

So far I have 3 engines (CN Dash 9, CN ES44 and a CR Dash 8) and all have EamD sounds from the factory.

David, how about a list of what you user so others can document it and avoid them in the future?

Sure thing... These were all tested and are EMD blower engines. Same sounds as a GP38 with dual exhaust stacks.

20-2655-1

20-2656-1

20-2657-1

20-2655-1

20-2522-1

20-20080-1