public SoundGroup(FMOD.SoundGroup fmodSoundGroup)
        {
            if (fmodSoundGroup == null)
                throw new ArgumentNullException("fmodSoundGroup");

            _fmodGroup = fmodSoundGroup;
        }

        public RESULT getMasterSoundGroup(ref SoundGroup soundgroup)
        {
            RESULT result = RESULT.OK;
            IntPtr soundgroupraw = new IntPtr();
            SoundGroup    soundgroupnew = null;

            try
            {
                result = FMOD_System_GetMasterSoundGroup(systemraw, ref soundgroupraw);
            }
            catch
            {
                result = RESULT.ERR_INVALID_PARAM;
            }
            if (result != RESULT.OK)
            {
                return result;
            }

            if (soundgroup == null)
            {
                soundgroupnew = new SoundGroup();
                soundgroupnew.setRaw(soundgroupraw);
                soundgroup = soundgroupnew;
            }
            else
            {
                soundgroup.setRaw(soundgroupraw);
            }

            return result;
        }

 public RESULT setSoundGroup(SoundGroup soundgroup)
 {
     return FMOD_Sound_SetSoundGroup(soundraw, soundgroup.getRaw());
 }

        public RESULT getSoundGroup           (out SoundGroup soundgroup)
        {
            soundgroup = null;

            IntPtr soundgroupraw;
            RESULT result = FMOD_Sound_GetSoundGroup(rawPtr, out soundgroupraw);
            soundgroup = new SoundGroup(soundgroupraw);

            return result;
        }

        public RESULT createSoundGroup       (string name, out SoundGroup soundgroup)
        {
            soundgroup = null;

            byte[] stringData = Encoding.UTF8.GetBytes(name + Char.MinValue);

            IntPtr soundgroupraw;
            RESULT result = FMOD_System_CreateSoundGroup(rawPtr, stringData, out soundgroupraw);
            soundgroup = new SoundGroup(soundgroupraw);

            return result;
        }

 public RESULT setSoundGroup           (SoundGroup soundgroup)
 {
     return FMOD5_Sound_SetSoundGroup(rawPtr, soundgroup.getRaw());
 }

        public RESULT createSoundGroup(string name, ref SoundGroup soundgroup)
        {
            var result = RESULT.OK;
            var soundgroupraw = new IntPtr();
            SoundGroup soundgroupnew = null;

            try
            {
                result = FMOD_System_CreateSoundGroup(systemraw, name, ref soundgroupraw);
            }
            catch
            {
                result = RESULT.ERR_INVALID_PARAM;
            }
            if (result != RESULT.OK)
            {
                return result;
            }

            if (soundgroup == null)
            {
                soundgroupnew = new SoundGroup();
                soundgroupnew.setRaw(soundgroupraw);
                soundgroup = soundgroupnew;
            }
            else
            {
                soundgroup.setRaw(soundgroupraw);
            }

            return result;
        }

 private static extern RESULT FMOD_System_CreateSoundGroup(IntPtr system, StringBuilder name, ref SoundGroup soundgroup);

 public RESULT getMasterSoundGroup(out SoundGroup soundgroup)
 {
     soundgroup = null;
     IntPtr raw;
     RESULT result = System.FMOD5_System_GetMasterSoundGroup(this.rawPtr, out raw);
     soundgroup = new SoundGroup(raw);
     return result;
 }

 public RESULT createSoundGroup(string name, out SoundGroup soundgroup)
 {
     soundgroup = null;
     byte[] bytes = Encoding.UTF8.GetBytes(name + '\0');
     IntPtr raw;
     RESULT result = System.FMOD5_System_CreateSoundGroup(this.rawPtr, bytes, out raw);
     soundgroup = new SoundGroup(raw);
     return result;
 }

        public RESULT createSoundGroup       (string name, ref SoundGroup soundgroup)
        {
            RESULT result = RESULT.OK;
            IntPtr soundgroupraw = new IntPtr();
            SoundGroup soundgroupnew = null;
            byte[] stringData = Encoding.UTF8.GetBytes(name + Char.MinValue);

            try
            {
                result = FMOD_System_CreateSoundGroup(systemraw, stringData, ref soundgroupraw);
            }
            catch
            {
                result = RESULT.ERR_INVALID_PARAM;
            }
            if (result != RESULT.OK)
            {
                return result;
            }

            if (soundgroup == null)
            {
                soundgroupnew = new SoundGroup();
                soundgroupnew.setRaw(soundgroupraw);
                soundgroup = soundgroupnew;
            }
            else
            {
                soundgroup.setRaw(soundgroupraw);
            }

            return result;
        }