I'm using Smokindan's Megaton House Trophies, which is great, but the sound of the Nuka Cola neon sign is driving me insane. Well, not really, but it's annoying. I wonder what the name of it is in GECK and where to find it so I can turn down or even off the sound?

I believe you are talking about 'NukaSign01' as the geck object. But you will see that there is no sound to remove from this static object. You will most likely have to edit its NIF file and remove the sound link from there.

Thanks! I loaded it in NifSkope but i can't find where the sound is defined. That might be a moot point, though - I guess it's easier to tweak the sound directly in GECK, but browsing through the sounds I can't find which sound it might be either.

The sounds are called from block 10 - NiTextKeyExtraData. If you expand the keys, you'll see at what times the sounds are called. I don't know enough to tell you if removing that entire branch will remove the sound and not bugger up the nif. You could try removing the block/branch or just removing the text from the keys and then saving as a new nif and then pointing the Geck object to your new nif and see if it works or not.

I deleted the strings pointing to the sound and it seems to work fine - now the sign is completely silent. Of course, now all Nuka Cola Signs will be silent so I might give the one in Trophies a unique ID pointing to the altered nif at some point. Thanks for the help - much appreciated!