private static extern RESULT FMOD5_System_GetRecordDriverInfo    (IntPtr system, int id, StringBuilder name, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder nameW, int namelen, out GUID guid, out int systemrate, out SPEAKERMODE speakermode, out int speakermodechannels);

 public RESULT getSpeakerMode(ref SPEAKERMODE speakermode)
 {
     return FMOD_System_GetSpeakerMode(systemraw, ref speakermode);
 }

 private static extern RESULT FMOD_System_GetDriverCaps(IntPtr system, int id, ref CAPS caps, ref int minfrequency, ref int maxfrequency, ref SPEAKERMODE controlpanelspeakermode);

 public RESULT getOutputChannelFormat(CHANNELMASK inmask, int inchannels, SPEAKERMODE inspeakermode, out CHANNELMASK outmask, out int outchannels, out SPEAKERMODE outspeakermode)
 {
     return FMOD_DSP_GetOutputChannelFormat(rawPtr, inmask, inchannels, inspeakermode, out outmask, out outchannels, out outspeakermode);
 }

 private static extern RESULT FMOD_DSP_GetOutputChannelFormat    (IntPtr dsp, CHANNELMASK inmask, int inchannels, SPEAKERMODE inspeakermode, out CHANNELMASK outmask, out int outchannels, out SPEAKERMODE outspeakermode);

 private static extern RESULT FMOD_System_GetSoftwareFormat      (IntPtr system, out int samplerate, out SPEAKERMODE speakermode, out int numrawspeakers);

 public RESULT setChannelFormat(CHANNELMASK channelmask, int numchannels, SPEAKERMODE source_speakermode)
 {
     return FMOD_DSP_SetChannelFormat(rawPtr, channelmask, numchannels, source_speakermode);
 }

 public RESULT getDriverCaps(int id, ref CAPS caps, ref int controlpaneloutputrate, ref SPEAKERMODE controlpanelspeakermode)
 {
     return FMOD_System_GetDriverCaps(systemraw, id, ref caps, ref controlpaneloutputrate, ref controlpanelspeakermode);
 }

 private static extern RESULT FMOD_System_GetDriverCaps(IntPtr system, int id, ref CAPS caps, ref int controlpaneloutputrate, ref SPEAKERMODE controlpanelspeakermode);

 private static extern RESULT FMOD_System_GetDriverInfo          (IntPtr system, int id, StringBuilder name, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder namew, int namelen, ref GUID guid, ref int systemrate, ref SPEAKERMODE speakermode, ref int speakermodechannels);

 public RESULT getRecordDriverInfo(int id, StringBuilder name, int namelen, out Guid guid, out int systemrate, out SPEAKERMODE speakermode, out int speakermodechannels, out DRIVER_STATE state)
 {
     IntPtr intPtr = Marshal.AllocHGlobal(name.Capacity);
     RESULT result = System.FMOD5_System_GetRecordDriverInfo(this.rawPtr, id, intPtr, namelen, out guid, out systemrate, out speakermode, out speakermodechannels, out state);
     StringMarshalHelper.NativeToBuilder(name, intPtr);
     Marshal.FreeHGlobal(intPtr);
     return result;
 }

 public RESULT getSoftwareFormat      (ref int samplerate, ref SPEAKERMODE speakermode, ref int numrawspeakers)
 {
     return FMOD_System_GetSoftwareFormat(systemraw, ref samplerate, ref speakermode, ref numrawspeakers);
 }

 public RESULT getDriverInfo          (int id, StringBuilder name, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder namew, int namelen, ref GUID guid, ref int systemrate, ref SPEAKERMODE speakermode, ref int speakermodechannels)
 {
     return FMOD_System_GetDriverInfo(systemraw, id, name, namew, namelen, ref guid, ref systemrate, ref speakermode, ref speakermodechannels);
 }

 public RESULT getRecordDriverInfo(int id, StringBuilder name, int namelen, out GUID guid, out int systemrate, out SPEAKERMODE speakermode, out int speakermodechannels)
 {
     return FMOD_System_GetRecordDriverInfo(rawPtr, id, name, null, namelen, out guid, out systemrate, out speakermode, out speakermodechannels);
 }

 public RESULT getSoftwareFormat      (out int samplerate, out SPEAKERMODE speakermode, out int numrawspeakers)
 {
     return FMOD_System_GetSoftwareFormat(rawPtr, out samplerate, out speakermode, out numrawspeakers);
 }

 public RESULT getDefaultMixMatrix    (SPEAKERMODE sourcespeakermode, SPEAKERMODE targetspeakermode, float[] matrix, int matrixhop)
 {
     return FMOD5_System_GetDefaultMixMatrix(rawPtr, sourcespeakermode, targetspeakermode, matrix, matrixhop);
 }

        public RESULT getRecordDriverInfo(int id, StringBuilder name, int namelen, out GUID guid, out int systemrate, out SPEAKERMODE speakermode, out int speakermodechannels)
        {
            IntPtr stringMem = Marshal.AllocHGlobal(name.Capacity);

            RESULT result = FMOD_System_GetRecordDriverInfo(rawPtr, id, stringMem, namelen, out guid, out systemrate, out speakermode, out speakermodechannels);

            StringMarshalHelper.NativeToBuilder(name, stringMem);
            Marshal.FreeHGlobal(stringMem);

            return result;
        }

 public RESULT getSpeakerModeChannels (SPEAKERMODE mode, out int channels)
 {
     return FMOD5_System_GetSpeakerModeChannels(rawPtr, mode, out channels);
 }

 private static extern RESULT FMOD_System_GetRecordDriverInfo    (IntPtr system, int id, IntPtr name, int namelen, out GUID guid, out int systemrate, out SPEAKERMODE speakermode, out int speakermodechannels);

 private static extern RESULT FMOD5_System_GetDefaultMixMatrix    (IntPtr system, SPEAKERMODE sourcespeakermode, SPEAKERMODE targetspeakermode, float[] matrix, int matrixhop);