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Page 48 MS-SOUND decoders MS440 to MS990
The CVs in the following table have the same meaning for all types of power (Steam, diesel, electric):
NOTE
: The
default values
of individual CVs are
NOT decoder-specific,
but rather depend on the
decoder’s
sound project.
This means that a HARD RESET with CV #8 = 8 returns the decoder to
the state defined by the sound project. The default values in the following table refer to the values
defined in THIS sound project for Roco BR85.
CV
Denomination
Range Default Description
#266
Total volume
(Multiplier)
0 - 255
=
0 - 400 %
64
=
100 %
The default value “64” results in the (mathematically) highest
possible distortion-free playback volume; but values of up to
100 may nonetheless be practical.
Recommended:
CV #266 = 40 - 90
#310
ON/OFF key
for
Driving sound vol-
ume and
Random Sounds
0 - 28,
255
1
Function key to turn ON/OFF driving sounds (steam chuffs,
boiling, blow-off, brake squeal, or diesel motor, thyristor
sounds, etc.) as well as random sounds (air brake pump, coal
shoveling, ...).
= 8: F8 key switches driving sound ON or OFF.
Note: this is the default key for ZIMO original sound projects;
OEM projects (i.e. ROCO) often use other settings. Mostly 1
for the F1 key.
= 0 - 28 F0 - F28 as ON/OFF-key for driving noise.
= 255: engine and random sounds are always ON.
#311
ON/OFF key
for
function sounds
0 - 28
0
Function key assigned as ON/OFF key of function sounds (i.e.
F2 – whistle, F6 – bell etc.).
= 0: does not mean that F0 is assigned for this task but rather
that the function sounds are always active.
= if the same value is entered here as in CV #310, the key de-
fined in #310 turns all sound ON/OFF.
= 1 - 28: Separate ON/OFF key for function sound.
#312
Blow-off key
0 - 28
13
See chapter 5.4 “Steam loco - basic configuration”,
(does not
belong in this chapter, despite the correct number sequence)
#313
“Mute key”
fade in/out time
key
0 - 28
101 - 128
114
This CV assigns a function key with which the driving sounds
can be faded in and out, i.e. when the train disappears behind
scenery. In many sound projects
CV #313 = CV #310, i.e. the same value in both CVs, there-
fore all sounds are faded in/ot.
= 0: No mute key or mute function.
= 1 - 28: Corresponding function key F1 - F28.
= 101 – 128: Assigned function key with inverted action.
#314
Mute –
fade in/out time
0 - 255
=
0 - 25 sec
0
Time in tenths of a second for sound fading in/out when mute
button is pressed. Total range is 25 seconds.
= 0 (to 10): Minimum 1 sec
= 11 - 255: longer “mute”-processes
#376
Driving sound
Volume -
(Multiplier)
0 - 255
=
0 - 100 %
255
=
100 %
To reduce the driving sound volume (e.g. Diesel motor with
related sounds such as turbo charger) compared to the func-
tion sounds.
CV
Denomination
Range Default Description
#287
Threshold
for
brake squeal
0 - 255
50
The brake squeal should start when the speed drops below a
specific speed step. It will be automatically stopped at speed 0
(based on back-EMF results).
#288
Brake squeal
Minimum drive time
planned in
SW version 5.00 and
higher
0 - 255
=
0 - 25 sec
50
The braking squeal is to be suppressed when an engine is
driven for a short time only, which is usually a shunting run and
often without any cars (in reality it is mostly the cars that are
squealing not the loco itself!).
Note: Brake squeal sounds can also be assigned to a function
key (see allocation procedure CV #300 = …), with which the
brake squeal can be started or stopped manually! (SW version
5.00 and higher)
#307
Cornering squeals
or
Reed configuration
planned in
SW version 5.00 and
higher
Bit0 - switching input 1 activates cornering squeal
Bit1 - switching input 2 activates braking squeal
Bit2 - switching input 3 activates braking squeal
Bit3 - switching input 4 activates braking squeal
Bit 7 - 0 = key defined in CV #308 suppresses cornering
squeal of Reed inputs if this key is ON
1 = key defined in CV #308 activates cornering squeal in-
dependent of Reed inputs
#308
Brake squeal-key
0-28
25
0: No key defined. Reed inputs always active.
1-28 = key F1 to F28.
#133
Use of FO4
FO4 as normal
function output
or
FO4 as output for
steam exhaust fan
smoke generator in
steam locos
and
IN (reed) pins
Configuration
and
MS440: FO9 to pin
IN4
= 0: FA4 used as normal function output,
i.e. controllable by a function key,
= 1: FA4 for smoke fan controlled by "simulated" axis detector
or by "real" axis detector. See CVs #267, #268!
NOTE: The operation mode of a fan is also determined by the
sound project.
NOTE: Large scale decoders have special outputs and setting
options for fans!
Bit 4 – inverts the polarity of Reed input 1
Bit 3 – inverts the polarity of Reed input 2
Bit 2 – inverts the polarity of Reed input 3
Bit 5 – inverts the polarity of Reed input 4
Bit 6 - (only types MS440) Pin IN4 becomes output FO9
#395 Maximum volume for
volume increase key
0 - 255
64
Configuration range for volume with the help of the louder key
according to CV #397; can also be higher than the basic con-
figuration in CV #266.
#396 volume decrease key
0 - 29
0
0 = No key defined.
1-28 = key F1 to F28 29 = F0-key
#397 Volume increase key
0 - 29
0
0 = No key defined.
1-28 = key F1 to F28 29 = F0-key
#346
Conditions for switching be-
tween collections, as per
CV #345
Those CVs can be found in chapter
“Diesel and electro locos
→
...”
.
They are valid for all types of drives,
but are mainly important for diesel locos.
#835
Further switching keys
#347
Switch key
for driving and sound perfor-
mance when driving solo