beier USM-RC-2 Operating Manual page 26

D Sound module USM-RC-2
Engine noise / Gears FG1 - FG5
The engine noise is always played when the vehicle drives. The engine noise is
always played like the idle noise in an endless loop. The playing speed is dependent
on the speed of the vehicle. The sound module recognizes how fast the vehicle
moves, and plays the engine noise also in the corresponding speed. How fast the
engine noise should be played at the corresponding speed can be set at the driving
sound diagram (see page 77).
You can set with the Sound-Teacher how many different sounds should be available
for driving forwards and backwards. This could be for instant sounds for different
gears for a truck or you can choose different driving sounds for each driving speed
(e.g. slow, normal and fast).
Please obey that the gears are just generated by the sound and not through a
mechanic gearshift. Yet it is not possible to activate the different sounds through an
engine control or a real gearshift.
For each driving sound FG1 – FG5 you can use 3 different settings (normal, slow
down and speed up). The latter options are just additional to generate a more
authentic sound but in most cases the "normal" sound is sufficient.
If you use the sound slot "slow down" and the model slows down, the driving sound
switches automatically from "FGx normal" to "FGx slow down". The same happens
when the model accelerates and you have occupied the sound slot "speed up".
To divide the entire speed range into sections for the 5 engine sounds/gears you can
use the engine sound diagram (see page 77).
Sounds for changing the running step/gear
If you use more than one running step/gear for your driving sound you can also use
sounds to simulate the changing between the different running steps/gears. At all
times when you change the running step/gear the changing noise will be played.
Furthermore you can differentiate between acceleration- and deceleration sounds
and therefore use for example different sounds for changing the gear from FG1 to
FG2 and another for switching from FG2 to FG1.
The changing sound will always be played once and completely when the running
step/gear is changed. For this reason the sound should be preferably short (e.g. 1s).
Otherwise, it might occur for example that the model is already standing but the
changing sound is still played.
Vehicle stopping noise
The stopping noise is played uniquely when the vehicle stops (drive  idle).
Engine stopping noise
The engine stopping noise is played when the engine sound is switched off.
26 BEIER-Electronic 03.02.2014