Sound programming, Whistle selection and control, Whistle volume – SoundTraxx Tsunami Steam Users Guide User Manual
Page 45: Dual whistle mode

Tsunami Steam Sound User’s Guide
Page 42
Whistle Selection and Control
Tsunami uses three CVs to adjust and control the whistle:
CV 115, Whistle Select
CV 129, Whistle Volume
CV 47, Playable Whistle Control
As set from the factory,
Tsunami uses Function F2 to
control the primary whistle and
Function F3 to control a shorter
signal whistle. Each Tsunami
decoder comes with up to
eight* whistles pre-installed.
To select a particular whistle,
simply program CV 115 with
any value between 0 and 7 as
indicated in Table K. Refer to
the SoundTraxx website for a
detailed list of which whistles
are contained in your particular
decoder.
*Note: Depending on the prototype and available memory storage, some
Tsunamis may have less than eight whistles installed. In such cases,
selecting an unavailable whistle will default to Whistle 0.
Whistle Volume
CV 129 sets the whistle volume and may be set between 0 and 255. See
Audio Mixer for more details.
Dual Whistle Mode
On occasion, a locomotive was equipped with two different whistles. The
Southern Pacific, in particular, was noted for its practice of equipping some
locomotives with an air horn. Tsunami has the ability to select between two
different whistles, if desired, using the Dual Whistle Mode feature. When
this mode is enabled, Function F2 continues to work as the primary whistle
control. Function F3 becomes the whistle select key. When F3 is OFF,
F2 controls Whistle Selection A and when F3 is ON, F2 controls Whistle
Selection B. Note that when the dual whistle mode is enabled, the signal
(short) whistle is unavailable.
To activate the dual whistle mode, program CV 115 as follows:
1. Select Whistle ‘A’ and find the corresponding CV Value from Table K.
2. Select Whistle ‘B’ and find the corresponding CV Value from Table K.
Sound Programming
Whistle 1
Whistle 2
Whistle 3
Whistle 4
Whistle 5
Whistle 6
Whistle 7
Whistle 8
Whistle Number
CV Value
0
1
2
3
4
5
6
7
Table K. CV 115, Whistle Selection