Page 56 MS-SOUND decoders MS440 to MS990
Functions are required for driving situations where the correct engine sound cannot be derived from
speed, acceleration and load only.
Primarily in diesel locomotives (but not necessarily limited to diesels), the motor’s idle sound or a cer-
tain specified speed step sound is enforced by keystroke.
This method can be used for “downshifting” (often to neutral) as well as “upshifting” (i.e. elevated idle for
heating). Future software versions will expand this function to a fully independent sound effect.
CV
Denomination
Value-
Range
De-
fault Description
#374
Coasting-Key
(or Notching)
for diesel sound pro-
jects
0 - 29
0
Function key that activates “Coasting“, which forces the motor
sound to a specified speed independent of the driving situa-
tion. Define the (sound) step in CV #375 (often used for idle
sound while coasting).
= 0: does NOT mean F0, but rather that NO key is assigned
for coasting.
= 1 - 28: One of the function keys F1 - F28 for “Coasting“, 29
= F0
#375
Coasting step
(or Notching)
0 - 10
0
Motor sound (speed) to be activated with the coasting key (as
per CV #374), independent of the driving situation.
=0: Idle sound (typical coasting situations)
= 1 - 10: Sound step (Diesel engines typically have 5 to 10
notches, which can be activated with the coasting key
(e.g. to represent auxiliary heating at standstill).
#398
Automatic
Coasting
0 - 255
0
The number of speed steps the train’s speed has to be re-
duced within 0.5 seconds in order for the automatic coasting
effect to set the motor sound to idle (without assigning a
coasting key above). This effect does not occur at slowly re-
ducing the speed steps.
It is especially expedient for diesel engines to be able to
raise the sound step manually
with a function key.
CV
Denomination
Value-
Range
De-
fault Description
#339
Key for raising
of diesel sound step
0 - 28
0
Function key that raises the diesel sound to the minimum
speed defined with CV #340.
See below if more keys for further speed raises are required.
#340
Diesel sound step,
to which is to be
raised, and possibly
more keys.
0 - 10
0
The minimum diesel step the sound is to be raised to with the
function key defined with CV #339. This CV can be extended
(to include more function keys (in succession) by applying the
formula: Minimum speed step + (16 * (Number of keys -1))
CV
Denomination
Value-
Range
Def Description
#315
Random generator
Z1
Minimal interval
0 - 255
=
0 - 255 sec
1
The random generator generates internal pulses in irregular
intervals that are used to playback a sound file assigned to
the random generator. CV #315 defines the shortest possible
interval between two consecutive pulses.
Sound samples are assigned to the random generator Z1 with
the help of the CV #300 = 101 procedure, see above! By de-
fault, the compressor is assigned to Z1.
Special note to the random generator Z1: To start the air brake pump, which is optimized for Z1, immedi-
ately after the train stopped, the following settings are required:
CVs #315 and #316 have to be set on the same value (e.g. 30), and CV #154 has to have the value 16.
#316
Random generator
Z1
Highest interval
0 - 255
=
0 - 255 sec
60
CV #316 defines the maximum time interval between two con-
secutive pulses of the random generator Z1; the actually oc-
curring pulses between the values in CV #315 and #316 are
equally distributed.
#317
Random generator
Z1
Duration of playback
0 - 255
=
0 - 255 sec
5
The sound sample assigned to the random generator Z1
(most often the compressor) is played back for the timespan
defined in CV #317.
= 0: Play back sound sample for the first time
#318
#319
#320
As above,
however…
Random generator
Z2
0 - 255
0 - 255
0 - 255
20
80
5
By default, Z2 is assigned for coal shoveling at stand-still.
#321
#322
#323
As above,
however…
Random generator
Z3
0 - 255
0 - 255
0 - 255
30
90
3
By default, Z3 is assigned for the injector at stand-still.
#324
-
#338
As above,
however…
Random generator
Z4 - Z8
0 - 255
0 - 255
0 - 255
At delivery this random generator is not used.
#341
Switch input 1
Duration of playback
SW version 5.00 and
higher
0 - 255
=
0 - 255 sec
0
The sound sample allocated to switch input 1 is played back
for the duration defined with this CV.
= 0: Play back sound sample for the first time
#342
Switch input 2
Duration of playback
SW version 5.00 and
higher
0 - 255
=
0 - 255 sec
0
The sound sample allocated to switch input 2 is played back
for the duration defined with this CV.
= 0: Play back sound sample for the first time
#343
Switch input 3
Duration of playback
SW version 5.00 and
higher
0 - 255
=
0 - 255 sec
0
The sound sample allocated to switch input 3 (as far as it is
not used as cam sensor) is played back for the duration de-
fined with this CV.
= 0: Play back sound sample for the first time
#392
Switch input 4
Duration of playback
SW version 5.00 and
higher
0 - 255
=
0 - 255 sec
0
The sound sample allocated to switch input 4 is played back
for the duration defined with this CV.
= 0: Play back sound sample for the first time