Locomotive sounds starts to work then fades away into silence. There is also a bit of distortion in the steam engine sounds when throttlling up, kinda of like the volume is clipping. Can not adjust the internal sound for that problem. The sounds for the steam engines and locomotives in general in the Trs2010 has gone down in quality sinse the Trs2006. I have tried the other later up to date locomotives and the same problem.