H0 Sound Decoder MX640 Page 35
CV
Designation
Value
range
INC
steps
De-
fault
Description
becomes audible
for
ELECTRIC engines
speed and reaches the maximum volume as per
CV #296 at the speed defined in CV #298.
#298
Motor sound,
starting point of
full volume for
ELECTRIC engines
0 -255
(> CV#297)
10 128
Internal speed step at which the motor sound
reaches full volume; at this speed step the motor
sound is played back at full volume according to
CV #296.
The following CV’s are not suitable for the “incremental programming”,
because they either are too difficult to
test immediately (large time intervals for random generators) or single bits need to be set. They are programmed
the usual way (CV # = …).
CV
Designation
Value
range
De-
fault
Description
#310
On/off key for engine
and random sound
0 - 12,
255
8
Defines the function key (by default F8) that turns the engine
sound (chuffs, boiling, blow-off’s, brake squeals...) as well as
the random sound (compressor, coal shoveling...) ON or OFF.
= 255: engine and random sound is always ON.
#311
On/off key for func-
tion sound
0 - 12
0
A key can be assigned with which all function sounds (i.e. F2
– whistle, F6 – bell etc.) can be turned on and off. No key is
programmed for this at delivery.
= 0: does not mean that F0 is assigned for this task but rather
that the function sounds are always active.
= (#310), if the same value is entered here as in CV #310, the
key defined in #310 turns all sound on/off.
= 1 ... 12: Assigns separate key to turn function sound on/off.
#312 Blow-off
key
0 - 12
4
=
F4
Defines a function key to play-back the blow-off sound manu-
ally (that is the same sound programmed with CV #300 = 133
to be played back automatically). For example: to do shunting
with „open valves“.
= 0: no key assigned (use this setting if keys are used for
other purposes).
#313
Mute key
from SW version 2
0 – 12
8
This CV assigns a function key with which the driving sounds
can be faded in and out, i.e. when the train becomes invisible
after disappearing behind scenery. F8 is used by default,
which is already the sound on/off key but now does so softly.
= 0: No mute key or mute function.
#314
Fade in/out time
0 – 255
0
Time in tenth of a second for sound fading in/out when mute
button is pressed. Range is 25 seconds.
=0: 1 sec, which is the same as a value of 10.
#315
Minimum interval for
0 - 255
1
The random generator produces internal pulses in irregular in-
CV
Designation
Value
range
De-
fault
Description
random generator Z1
=
0 - 255 sec
tervals that are used to playback a sound file assigned to the
random generator. CV #315 defines the shortest possible in-
terval between two consecutive pulses.
Sound samples are assigned to the random generator Z1 with
the help of the procedure CV #300 = 101, see above! By de-
fault, the compressor is assigned to Z1.
Special note to random generator Z1:
The random generator Z1 is optimized for the compressor
(which should be played back shortly after the train has
stopped); therefore the default assignment should be retained
or at the most be used for a different compressor. CV #315
also determines the proper time the compressor is started af-
ter coming to a stop!
#316
Maximum interval
for random generator
Z1
0 - 255
=
0 - 255 sec
60
CV #316 defines the maximum time interval between two
consecutive pulses of the random generator Z1 (that is most
often the start of the compressor); the actual pulses are
evenly spaced between the values in CV #315 and #316.
#317
Playback length for
random generator Z1
0 - 255
=
0 - 255 sec
5
The sound sample assigned to the random generator Z1
(most often the compressor) is played back for the duration
defined in CV #317.
= 0: Sample plays once (in the defined duration)
#318
#319
#320
As above but for
sound generator Z2
0 - 255
0 - 255
0 - 255
20
80
5
By default, Z2 is assigned for coal shoveling.
#321
#320
#323
As above but for
sound generator Z3
0 - 255
0 - 255
0 - 255
30
90
3
By default, Z3 is assigned for the injector.
#324
#325
#326
As above but for
sound generator Z4
0 - 255
0 - 255
0 - 255
As delivered, this random generator is not assigned to any
sound.
#327
#328
#329
As above but for
sound generator Z5
0 - 255
0 - 255
0 - 255
As delivered, this random generator is not assigned to any
sound.
#330
#331
#332
As above but for
sound generator Z6
0 - 255
0 - 255
0 - 255
As delivered, this random generator is not assigned to any
sound.
#333
#334
#335
As above but for
sound generator Z7
0 - 255
0 - 255
0 - 255
As delivered, this random generator is not assigned to any
sound.
#336
#337
#338
As above but for
sound generator Z8
0 - 255
0 - 255
0 - 255
As delivered, this random generator is not assigned to any
sound.
