private static extern ErrorCode SetReverbProperties(IntPtr channel, ref ReverbChannelProperties prop);
private static extern ErrorCode OverrideReverbProperties(IntPtr channelgroup, ref ReverbChannelProperties prop);
private static extern ErrorCode SetReverbProperties(IntPtr channel, ref ReverbChannelProperties prop);
private static extern ErrorCode OverrideReverbProperties(IntPtr channelgroup, ref ReverbChannelProperties prop);