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Download the Plane Maker Manual - X-Plane

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76 6. MODIFYING AN AIRCRAFT’S PROPERTIES<br />

First, <strong>the</strong>n, one must understand <strong>the</strong> structure of <strong>the</strong> default sounds directory. The default<br />

sounds are located in <strong>the</strong> folder:<br />

X-<strong>Plane</strong> 10/Resources/sounds<br />

In this folder are <strong>the</strong> following subfolders:<br />

• “alert,” which contains sounds for altitude warnings, system failures, and navigation alerts,<br />

among o<strong>the</strong>r things.<br />

• “contact,” which contains sounds for crashing into <strong>the</strong> ground, and touching down on <strong>the</strong><br />

water, as well as for <strong>the</strong> rolling and skidding wheels on pavement.<br />

• “engine,” which contains sounds for <strong>the</strong> many different kinds of engines modeled in X-<strong>Plane</strong>.<br />

• “radio chatter,” which contains communications between aircraft and ATC. Note that this<br />

is <strong>the</strong> only set of sounds which apply globally and may not be customized by a particular<br />

aircraft.<br />

• “systems,” which contains sounds for <strong>the</strong> humming of <strong>the</strong> APU and avionics, <strong>the</strong> moving of<br />

flaps and gears, and <strong>the</strong> firing of guns and flares.<br />

• “wea<strong>the</strong>r,” which contains sounds for thunder, wind, and rain.<br />

Each subfolder contains a number of WAV (uncompressed audio) files corresponding to <strong>the</strong><br />

different sounds that would be heard in X-<strong>Plane</strong>.<br />

To use custom sounds, <strong>the</strong>n-that is, sounds which override <strong>the</strong> default ones-you would create a<br />

subfolder in your aircraft’s sounds folder to match <strong>the</strong> structure of <strong>the</strong> default sounds folder, <strong>the</strong>n<br />

name your WAV files with your aircraft’s name as a prefix, like this:<br />

[.acf file name] [name of .wav file to replace].wav<br />

For instance, if your aircraft file was called ”MyCessna.acf” and you wanted to use a custom<br />

altitude alert sound for your aircraft, it would need to be located here:<br />

[Your aircraft folder]/sounds/alert/MyCessna altitude alert.wav<br />

Note that <strong>the</strong> sample rate of <strong>the</strong> WAV files you wish to use should be 22.050 kHz. You can likely<br />

set your recording device to this sample rate before you begin capturing your sounds. Alternatively,<br />

an audio editor (such as <strong>the</strong> excellent, free, cross-platform Audacity) can be used to change <strong>the</strong><br />

sample rate.<br />

When using custom wind sounds (saved as [your aircraft directory]/sounds/wea<strong>the</strong>r/[.acf<br />

file name] wind.wav), X-<strong>Plane</strong> will scale <strong>the</strong> volume of <strong>the</strong> recorded sound depending on <strong>the</strong><br />

speed at which your aircraft is flying. In order to do so, you must set <strong>the</strong> knots indicated airspeed<br />

at which <strong>the</strong> wind sound was recorded. This is located in <strong>the</strong> Engine Specs dialog’s SFC/Sound<br />

tab; in <strong>the</strong> bottom third of this window on <strong>the</strong> far left is <strong>the</strong> setting labeled “speed that wind<br />

sound was recorded at.”<br />

Likewise, engine sounds (stored in [your aircraft directory]/sounds/engine/) are scaled<br />

in both volume and pitch based on <strong>the</strong> engine speed at which <strong>the</strong>y were recorded. The bottom of<br />

<strong>the</strong> Engine Specs dialog’s SFC/Sound tab houses <strong>the</strong> settings for <strong>the</strong> RPM or N1 speed at which<br />

engine and propeller sounds were recorded.<br />

6.3 Setting <strong>the</strong> View Properties<br />

When flying in X-<strong>Plane</strong>, <strong>the</strong> pilot’s inside-<strong>the</strong>-cockpit view is fixed at some point on <strong>the</strong> aircraft.<br />

To set this point for your aircraft, open <strong>the</strong> Viewpoint dialog box from <strong>the</strong> Standard menu. It<br />

will open to <strong>the</strong> Default tab. There, in <strong>the</strong> left-center of <strong>the</strong> window, are <strong>the</strong> “long,” “lat,” and<br />

“vert” arms of <strong>the</strong> pilot’s viewpoint. These are standard position controls, as discussed in <strong>the</strong>

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