gistfile1.txt

			// Something not null here!
			AudioConverter a = null; //AudioConverter.Create (srcFormat, dstFormat, out ce);
			SetProperty (a, 0x73726361, (uint)AudioConverterSampleRateConverterComplexity.Linear);// 'srca'
			SetProperty (a, 0x73726371, (uint)AudioConverterQuality.Max); // 'srcq'
		}

		[DllImport ("/System/Library/Frameworks/AudioToolbox.framework/AudioToolbox")]
		static extern AudioConverterError AudioConverterSetProperty (IntPtr inAudioConverter, UInt32 inPropertyID,
			int inPropertyDataSize, ref uint inPropertyData);

		// This is ghetto
		void SetProperty (AudioConverter c, UInt32 propertyID, uint value)
		{
			// Unlike the rest of our bindings, we don't make this public for some unknown reason...
			FieldInfo fi = typeof(AudioConverter).GetField("handle", BindingFlags.NonPublic | BindingFlags.Instance);
			IntPtr handle = (IntPtr)fi.GetValue (c);
			var res = AudioConverterSetProperty (handle, propertyID, sizeof (uint), ref value);
			if (res != AudioConverterError.None)
				throw new ArgumentException (res.ToString ());
		}