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<TITLE>Varying gain with distance</TITLE>
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<CENTER>Adding sound</CENTER>
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<CENTER><B><I>Varying gain with distance</I></B></CENTER>
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<DD><LI>Point sound waves are <I>attenuated</I>:
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	<DD><LI>Amplitude decreases as the viewer moves away
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<DD><LI>Attenuation is controlled by a list of value pairs:
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	<DD><LI><I>Distance</I> from sound position
	<DD><LI><I>Gain</I> at that distance
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<CENTER><IMG SRC="../images/SoundAttenuation.jpg" WIDTH=240 HEIGHT=180></CENTER>


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