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Sound Programming

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

Table K. CV 115, Whistle Selection

Whistle Number

CV Value

Whistle 1

0

Whistle 2

1

Whistle 3

2

Whistle 4

3

Whistle 5

4

Whistle 6

5

Whistle 7

6

Whistle 8

7

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.

Tsunami Steam Sound User’s Guide

Page 42

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