I have a Lionel legacy Baltimore & Ohio EM-1 2-8-8-4 (product number: 6-11337). I love this engine with the exception of the whistle sound. It has a quilling or variable pitch whistle which is lots of fun, but the sound of the whistle is too cold and metallic for my taste. I found a sound clip of the real world DM&IR #227's whistle and it sounds almost exactly like the Lionel Union Pacific FEF-3 #844. I would love to refit my current engine with this new whistle sound.
It looks like Lionel's sound system has a general driver board with a chip that has specific sound files on it.
My ideal goal would be to get a reader/writer to access the chips, obtain a UP FEF-3 sound chip, and replace the whistle sound files. If the Lionel chips can only be read I can get a third writable chip and copy files from both onto it. In the case where reading and writing isn't possible, my less ideal goal would be to swap the entire chip with a Union Pacific Big Boy #4024. It also has two sets of drive wheels and the chuffing should at least be in sync. I don't use crew talk, just the bell and the whistle, so I don't really care if the crew talk doesn't match my engine.
Does anyone know what kind of chip Lionel uses and if they are writable or readable?
Also, where would I go to find sound chips? Lionel seems like the best place, but it is unclear as to if they are willing to sell them.
I love this engine and I have invested too much in my layout to simply buy another engine. I feel like a model train's whistle is it's highlight and I want to like the sound of mine.
I appreciate any help.