-FlightGear flight simulator's aircraft sound via XML.
-
-Some History:
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-Older versions of FGFS had a hard coded audio layer. This was a
-than ideal state of affairs due to FGFS ability to use different
-aircraft models. Being primarily developed on UNIX type systems, a
-modular approach is taken towards the simulation. To date, most
-alternatives to the default Cessna 172 aircraft are the product
-of research institutions interested in the flight characteristics and
-not cosmetics. The result of this was that one could fly the X-15 or
-a Boeing 747 but be limited to C172 sounds.
-
-A rewrite of the sound code was done around v0.7.10 by Erik Hofman
-allowing for configuration of the sounds via XML to address this
-limitation.