ESU D600 Sound decoder and sound file.

F0. Lights on/off (if fitted)
F1. Sound on/off
F2. Double horn
F3. Double horn
F4. Single horn
F5. Buffer up
F6. Coupling up
F7. Flange squeal
F8. Air tick
F9. Guards whistle
F10. Carriage door slam
F11. Wheel/track ‘groan’
F12. Shunting mode. Press once and the loco moves slowly, press it again and you are back to normal control
F13. Acceleration/Brake override. This function overrides the normal acceleration and braking settings.
F14. Aux 1
F15. Aux 2