4.3.Automatic sounds
4.3.1. Starting signal
The engineer gives a warning signal with the whistle shortly before the train starts moving. The sound for this
stating signal is defined in CV 188/189. No sound is produced if this CV contains a “0“. The factory setting of
the eMOTION XLS sound decoder defines a 30 sec. Pause between two starting signals. This means, the
locomotive has to rest at least 30 sec. To trigger the next starting signal. The paus time may be deactivated in
CV149 by subtracting 64.
4.3.2. Operational noises
During acceleration a multiple contact switch is operated in an electric locomotive. The sound used is defined in
CV234. The speed at which this sound is produced is set in CV230 and CV231 for digital operation and in
CV232 and CV 233 for analog operation.
4.3.3. Braking noise
This sound is produced automatically when the locomotive is slowing down for stopping. This feature is
activated per factory setting. The activation of the braking noise is achieved by setting CV149 to “32“. Two
threshold values may be set for this feature: CV168 (factory setting “64“) is the unblocking threshold. A
locomotive has to accelerate to a predefined speed to enable the braking noise when slowing down. Next the
locomotive has to fall below a predefined speed to trigger the braking noise (trigger threshold) CV169 (factory
setting “16“). The braking sound is produced until the locomotive stops or until it accelerates again. These
thresholds have a programmable range of 0...255, 255 being the maximum speed. In case a locomotive is
generally operated at very low speeds, CV168 may be lowered to e.g. “32“.
4.3.4. Random generator
The random generator handles a maximum of 4 sounds. The number of the sounds are set in CV180 to CV183,
the number of loops are set in CV184 to CV187. The frequency of occurrence is set in CV179, 1 = frequent
occurrence to 3 = infrequent occurrence.
The random generator is activated by adding “1“ to the CV149 setting (to set Bit 0).
4.3.5. Standing noises
The standing noises is a series of max. 4 sounds which are produced ater the locomotive has stopped. These
sounds are activated by adding “2“ to the CV149 setting (to set Bit 1). The sounds are defined in CV171 to
CV174 and the loops in CV175 to 178.
4.4.Louds external volume control
4.4.1. Total volume
The total volume of the sound is set in CV200, range 0...64. The factory setting is “32“.
4.4.2. External volume control
The total volume of the eMOTION XLS sound decoder may be controlled by an external potentiometer. CV200
must be set to “255“ to activate the external volume control.
4.4.3. Loudspeaker specifications
The power amplifier of the eMOTION XLS Sound Decoder delivers 1 Watt with a loudspeaker of 8 Ohms
impedance. 8 Ohms impedance is a must for all loudspeakers used with the decoder to ensure proper
eMOTION XLS Sound Decoder 17
