SoundTraxx SoundCar Users Guide - Manual (Page 31)

Tsunami SoundCar User’s Guide Page 27
determine the frequency of the clickety‑clack rate based on the scale speed
of the car and the distance between rail joints. A value of 1 corresponds to
0.01ft/s. Higher values correspond to faster scale speeds, and a value of 0
will disable the clickety‑clack and flat spot sound effects.
Clickety-Clack Volume
CV 131 controls the clickety‑clack volume and may be set to any value from
0 to 255. The default is 64.
Flange Squeal Control
The following CVs control the flange squeal sound effect:
CV 133, Flange Squeal Volume
CV 201, Flange Squeal Probability
Flange Squeal Volume
CV 133 controls the flange squeal volume and may be set to any value from
0 to 255. The default is 16.
Flange Squeal Probability
The flange squeal is set to run automatically using CV 201, which allows you
to set the frequency of occurrence between flange squeals based on your
operating speed and scenario. It may be desirable to set this to lower values
if your layout has a great deal of straight track and higher values if your
layout has multiple curves. The flange squeal can be disabled by setting this
CV to a value of 0.
Using Quiet Mode
The SoundCar’s quiet mode can be used to turn on sound only after the
decoder is placed into service. It will also automatically turn the sound off
when the decoder is not being used. This is particularly useful when you have
a large number of sound‑equipped trains on your layout and don’t want to
have them running sound all at once.
To activate quiet mode, simply program CV 113 (Quiet Mode Time‑out
Period) to any value from 1 to 255. This value determines the amount of time,
in one‑quarter of a second, the decoder will wait before turning off the sound.
Thus, a setting of 120 corresponds to 30 seconds.
When quiet mode is active, the SoundCar will remain silent when it is first
powered up and then will automatically turn on the sound once it receives
a function command (other than mute). It will automatically mute the audio
whenever all functions are turned off and the time set in CV 113 has elapsed.
Setting CV 113 to 0 disables quiet mode, and sounds will begin immediately
when the decoder is powered up.
Sound Programming