Jean-Michel Trivi f2b0c11f4e Fix sound effect attenuation calculation
The sound effect volume attenuation calculation is wrong: the
 division by 20 was always returning 1 or 0.
In AudioService, rename the sound effect attenuation value to
 follow the naming conventions for static variables.

Change-Id: I3c36d50f4470ff09ca98cb944aefb5ad0f968782
2012-07-10 13:24:23 -07:00
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