DCC sound equipped locomotive

[misty]

Can anybody tell me what CVs control the start up and slow down speed on the dcc soundtraxx 2-6-0 and the diesel gp38-2 and what the settings can be

[Hunt]

The following is relevant to the decoder installed in the locomotives in your question.

Click Here
Scroll to and read info about
CV 2   Vstart
CV 3   Baseline Acceleration Rate
CV 4   Baseline Braking Rate

[Hunt]

The following is relevant to the decoder installed in the locomotives in your question.

Click Here
Scroll to and read info about
CV 2   Vstart
CV 3   Baseline Acceleration Rate
CV 4   Baseline Braking Rate

Also FYI,
While you can use the information for CVs 2, 3 and 4, not all the information in the Technical Reference Manual I gave you is applicable to the Sound Value decoder, which is the SoundTraxx type decoder factory installed in your locomotives.

[Trainman203]

https://m.youtube.com/watch?v=i9hFJuDMSbM

[Hunt]

The low speed of the diesel seen in the video is obtained by optimizing (but not limited to) the setting in
  CV  10  Back-EMF Cutout
  CV 209 Kp Coefficient
  CV 210 Ki Coefficient
  CV 212 Motor Control Intensity
  CV 213 Motor Control Sample Period
  CV 214 Motor Control Sample Aperture Time

There are different techniques one can use to optimize these CVs, which is done for a specific locomotive.  SoundTraxx cover a Strategy for CV Optimization in the Advanced Programming section of the decoder User's Guide.

[Trainman203]

Thanks, Hunt. I thought that video explained things, sorry