mono/MonoGame — pull request #775 by slygamer (2012-09-17 11:13:03+00:00)
Title: MacOS pitch fix and combined duplicate classes

Combined MacOS/Audio/SoundEffectInstance.cs and Desktop/Audio/SoundEffectInstance.cs into one seeing as they were almost duplicates and fixes were often done in one and not the other, particularly MacOS was missing the transform of XNA pitch to OpenAL pitch. Used Murudai's pitch fix (http://monogame.codeplex.com/discussions/392488) as it more closely matches that which OpenAL would do. iOS was using MacOS/Audio/SoundEffectInstance.cs so it now points to Desktop/Audio/SoundEffectInstance.cs as well.