C++ System::setSoftwareFormat方法代码示例

//.........这里部分代码省略.........
    */

    result = system->getRecordNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a RECORD driver\n");
    printf("---------------------------------------------------------\n");    
    for (count=0; count < numdrivers; count++)
    {
        char name[256];

        result = system->getRecordDriverInfo(count, name, 256, 0);
        ERRCHECK(result);

        printf("%d : %s\n", count + 1, name);
    }
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    recorddriver = 0;
    do
    {
        key = getch();
        if (key == 27)
        {
            return 0;
        }
        recorddriver = key - '1';
    } while (recorddriver < 0 || recorddriver >= numdrivers);

    printf("\n");
 
    result = system->setSoftwareFormat(OUTPUTRATE, FMOD_SOUND_FORMAT_PCM16, 1, 0, FMOD_DSP_RESAMPLER_LINEAR);
    ERRCHECK(result);

    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    system->getSoftwareFormat(&outputfreq, 0, 0, 0, 0, 0);
    ERRCHECK(result);

    /*
        Create a sound to record to.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = OUTPUTRATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5;
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    /*
        Start the interface
    */
    printf("=========================================================================\n");
    printf("Pitch detection example.  Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("=========================================================================\n");
    printf("\n");
    printf("Record something through the selected recording device and FMOD will\n");
    printf("Determine the pitch.  Sustain the tone for at least a second to get an\n");
    printf("accurate reading.\n");

int main(int argc, char *argv[])
{
    FMOD::System    *system;
    FMOD::Sound     *sound1, *sound2, *sound3;
    FMOD::Channel   *channel1 = 0, *channel2 = 0, *channel3 = 0;
    FMOD_RESULT      result;
    int              key, numdrivers;
    bool             listenerflag = true;
    FMOD_VECTOR      listenerpos  = { 0.0f, 0.0f, -1.0f * DISTANCEFACTOR };
    unsigned int     version;
    FMOD_SPEAKERMODE speakermode;
    FMOD_CAPS        caps;
    char             name[256];

    printf("===============================================================\n");
    printf("3d Example.  Copyright (c) Firelight Technologies 2004-2015.\n");
    printf("===============================================================\n");
    printf("This example plays 2 3D sounds in hardware.  Optionally you can\n");
    printf("play a 2D hardware sound as well.\n");
    printf("===============================================================\n\n");

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);
    
    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }
    
    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    if (numdrivers == 0)
    {
        result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
        ERRCHECK(result);
    }
    else
    {
        result = system->getDriverCaps(0, &caps, 0, &speakermode);
        ERRCHECK(result);

        result = system->setSpeakerMode(speakermode);       /* Set the user selected speaker mode. */
        ERRCHECK(result);

        if (caps & FMOD_CAPS_HARDWARE_EMULATED)             /* The user has the 'Acceleration' slider set to off!  This is really bad for latency!. */
        {                                                   /* You might want to warn the user about this. */
            result = system->setDSPBufferSize(1024, 10);
            ERRCHECK(result);
        }

        result = system->getDriverInfo(0, name, 256, 0);
        ERRCHECK(result);

        if (strstr(name, "SigmaTel"))   /* Sigmatel sound devices crackle for some reason if the format is PCM 16bit.  PCM floating point output seems to solve it. */
        {
            result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR);
            ERRCHECK(result);
        }
    }

    result = system->init(100, FMOD_INIT_NORMAL, 0);
    if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)         /* Ok, the speaker mode selected isn't supported by this soundcard.  Switch it back to stereo... */
    {
        result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
        ERRCHECK(result);
            
        result = system->init(100, FMOD_INIT_NORMAL, 0);/* ... and re-init. */
        ERRCHECK(result);
    }

    
    /*
        Set the distance units. (meters/feet etc).
    */
    result = system->set3DSettings(1.0, DISTANCEFACTOR, 1.0f);
    ERRCHECK(result);

    /*
        Load some sounds
    */
    result = system->createSound("../media/drumloop.wav", FMOD_3D, 0, &sound1);
    ERRCHECK(result);
    result = sound1->set3DMinMaxDistance(0.5f * DISTANCEFACTOR, 5000.0f * DISTANCEFACTOR);
    ERRCHECK(result);
    result = sound1->setMode(FMOD_LOOP_NORMAL);
    ERRCHECK(result);

    result = system->createSound("../media/jaguar.wav", FMOD_3D, 0, &sound2);
    ERRCHECK(result);
    result = sound2->set3DMinMaxDistance(0.5f * DISTANCEFACTOR, 5000.0f * DISTANCEFACTOR);
    ERRCHECK(result);
    result = sound2->setMode(FMOD_LOOP_NORMAL);
//.........这里部分代码省略.........

int FMOD_Main()
{
    void *extraDriverData = NULL;
    Common_Init(&extraDriverData);

    FMOD::Studio::System* system = NULL;
    ERRCHECK( FMOD::Studio::System::create(&system) );

    // The example Studio project is authored for 5.1 sound, so set up the system output mode to match
    FMOD::System* lowLevelSystem = NULL;
    ERRCHECK( system->getLowLevelSystem(&lowLevelSystem) );
    ERRCHECK( lowLevelSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0) );

    ERRCHECK( system->initialize(32, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );

    FMOD::Studio::Bank* masterBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank) );

    FMOD::Studio::Bank* stringsBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.strings.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank) );

    FMOD::Studio::Bank* ambienceBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Character.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &ambienceBank) );

    FMOD::Studio::EventDescription* eventDescription = NULL;
    ERRCHECK( system->getEvent("event:/Character/Radio/Command", &eventDescription) );

    FMOD::Studio::EventInstance* eventInstance = NULL;
    ERRCHECK( eventDescription->createInstance(&eventInstance) );
    
    ProgrammerSoundContext programmerSoundContext;
    ERRCHECK( system->getLowLevelSystem(&programmerSoundContext.system) );

    ERRCHECK( eventInstance->setUserData(&programmerSoundContext) );
    ERRCHECK( eventInstance->setCallback(programmerSoundCallback) );
    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_ACTION1))
        {
            programmerSoundContext.soundName = Common_MediaPath("sequence-one.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION2))
        {
            programmerSoundContext.soundName = Common_MediaPath("sequence-two.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION3))
        {
            programmerSoundContext.soundName = Common_MediaPath("sequence-three.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION4))
        {
            programmerSoundContext.soundName = Common_MediaPath("sequence-four.ogg");
            ERRCHECK( eventInstance->start() );
        }

        ERRCHECK( system->update() );

        Common_Draw("==================================================");
        Common_Draw("Event Parameter Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2014-2014.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Press %s to play event with sound 1", Common_BtnStr(BTN_ACTION1));
        Common_Draw("Press %s to play event with sound 2", Common_BtnStr(BTN_ACTION2));
        Common_Draw("Press %s to play event with sound 3", Common_BtnStr(BTN_ACTION3));
        Common_Draw("Press %s to play event with sound 4", Common_BtnStr(BTN_ACTION4));
        Common_Draw("");
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    ERRCHECK( system->release() );

    Common_Close();

    return 0;
}

//.........这里部分代码省略.........

    result = system->getRecordNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a RECORD driver\n");
    printf("---------------------------------------------------------\n");    
    for (count=0; count < numdrivers; count++)
    {
        char name[256];

        result = system->getRecordDriverInfo(count, name, 256, 0);
        ERRCHECK(result);

        printf("%d : %s\n", count + 1, name);
    }
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    recorddriver = 0;
    do
    {
        //key = _getch();
		key = '1'; //TODO: io devices
        if (key == 27)
        {
            return(0);
        }
        recorddriver = key - '1';
    } while (recorddriver < 0 || recorddriver >= numdrivers);

    printf("\n");
 
    result = system->setSoftwareFormat(OUTPUT_RATE, FMOD_SOUND_FORMAT_PCM16, 1, 0, FMOD_DSP_RESAMPLER_LINEAR);
    ERRCHECK(result);

    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    /*
        Create a sound to record to.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = OUTPUT_RATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5;
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    /*
        Start the interface
    */
    printf("=========================================================================\n");
    printf("Pitch detection example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("=========================================================================\n");
    printf("\n");
    printf("Record something through the selected recording device and FMOD will\n");
    printf("Determine the pitch.  Sustain the tone for at least a second to get an\n");
    printf("accurate reading.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

int FMOD_Main()
{
    void *extraDriverData = NULL;
    Common_Init(&extraDriverData);

    FMOD::Studio::System* system = NULL;
    ERRCHECK( FMOD::Studio::System::create(&system) );

    // The example Studio project is authored for 5.1 sound, so set up the system output mode to match
    FMOD::System* lowLevelSystem = NULL;
    ERRCHECK( system->getLowLevelSystem(&lowLevelSystem) );
    ERRCHECK( lowLevelSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0) );

    ERRCHECK( system->initialize(32, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );
    
    FMOD::Studio::Bank* masterBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank) );
    
    FMOD::Studio::Bank* stringsBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.strings.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank) );
    
    FMOD::Studio::Bank* ambienceBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Surround_Ambience.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &ambienceBank) );
    
    FMOD::Studio::Bank* menuBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("UI_Menu.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &menuBank) );
    
    FMOD::Studio::Bank* weaponsBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Weapons.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &weaponsBank) );

    // Get the Looping Ambience event
    FMOD::Studio::EventDescription* loopingAmbienceDescription = NULL;
    ERRCHECK( system->getEvent("event:/Ambience/Country", &loopingAmbienceDescription) );
    
    FMOD::Studio::EventInstance* loopingAmbienceInstance = NULL;
    ERRCHECK( loopingAmbienceDescription->createInstance(&loopingAmbienceInstance) );
    
    // Get the 4 Second Surge event
    FMOD::Studio::EventDescription* cancelDescription = NULL;
    ERRCHECK( system->getEvent("event:/UI/Cancel", &cancelDescription) );
    
    FMOD::Studio::EventInstance* cancelInstance = NULL;
    ERRCHECK( cancelDescription->createInstance(&cancelInstance) );
    
    // Get the Single Explosion event
    FMOD::Studio::EventDescription* explosionDescription = NULL;
    ERRCHECK( system->getEvent("event:/Explosions/Single Explosion", &explosionDescription) );

    // Start loading explosion sample data and keep it in memory
    ERRCHECK( explosionDescription->loadSampleData() );

    do
    {
        Common_Update();
        
        if (Common_BtnPress(BTN_ACTION1))
        {
            // One-shot event
            FMOD::Studio::EventInstance* eventInstance = NULL;
            ERRCHECK( explosionDescription->createInstance(&eventInstance) );

            ERRCHECK( eventInstance->start() );

            // Release will clean up the instance when it completes
            ERRCHECK( eventInstance->release() );
        }
    
        if (Common_BtnPress(BTN_ACTION2))
        {
            ERRCHECK( loopingAmbienceInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION3))
        {
            ERRCHECK( loopingAmbienceInstance->stop(FMOD_STUDIO_STOP_IMMEDIATE) );
        }

        if (Common_BtnPress(BTN_ACTION4))
        {
            // Calling start on an instance will cause it to restart if it's already playing
            ERRCHECK( cancelInstance->start() );
        }

        ERRCHECK( system->update() );

        Common_Draw("==================================================");
        Common_Draw("Simple Event Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2014-2014.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Press %s to fire and forget the explosion", Common_BtnStr(BTN_ACTION1));
        Common_Draw("Press %s to start the looping ambience", Common_BtnStr(BTN_ACTION2));
        Common_Draw("Press %s to stop the looping ambience", Common_BtnStr(BTN_ACTION3));
        Common_Draw("Press %s to start/restart the cancel sound", Common_BtnStr(BTN_ACTION4));
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));
    
    ERRCHECK( weaponsBank->unload() );
//.........这里部分代码省略.........

int main()
{
	// ================================================================================================
	// Application-independent initialization
	// ================================================================================================

	FMOD::System *system;
	FMOD_RESULT result;
	unsigned int version;
	int numDrivers;
	FMOD_SPEAKERMODE speakerMode;
	FMOD_CAPS caps;
	char name[256];

	// Create FMOD interface object
	result = FMOD::System_Create(&system);
	FMODErrorCheck(result);

	// Check version
	result = system->getVersion(&version);
	FMODErrorCheck(result);

	if (version < FMOD_VERSION)
	{
		std::cout << "Error! You are using an old version of FMOD " << version << ". This program requires " << FMOD_VERSION << std::endl;
		return 0;
	}
	
	// Get number of sound cards
	result = system->getNumDrivers(&numDrivers);
	FMODErrorCheck(result);
	
	// No sound cards (disable sound)
	if (numDrivers == 0)
	{
		result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
		FMODErrorCheck(result);
	}

	// At least one sound card
	else
	{
		// Get the capabilities of the default (0) sound card
		result = system->getDriverCaps(0, &caps, 0, &speakerMode);
		FMODErrorCheck(result);
	
		// Set the speaker mode to match that in Control Panel
		result = system->setSpeakerMode(speakerMode);
		FMODErrorCheck(result);
	
		// Increase buffer size if user has Acceleration slider set to off
		if (caps & FMOD_CAPS_HARDWARE_EMULATED)
		{
			result = system->setDSPBufferSize(1024, 10);
			FMODErrorCheck(result);
		}
	
		// Get name of driver
		result = system->getDriverInfo(0, name, 256, 0);
		FMODErrorCheck(result);
	
		// SigmaTel sound devices crackle for some reason if the format is PCM 16-bit.
		// PCM floating point output seems to solve it.
		if (strstr(name, "SigmaTel"))
		{
			result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0, 0, FMOD_DSP_RESAMPLER_LINEAR);
			FMODErrorCheck(result);
		}
	}

	// Initialise FMOD
	result = system->init(100, FMOD_INIT_NORMAL, 0);

	// If the selected speaker mode isn't supported by this sound card, switch it back to stereo
	if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)
	{
		result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
		FMODErrorCheck(result);
	
		result = system->init(100, FMOD_INIT_NORMAL, 0);
	}
	FMODErrorCheck(result);

	// ================================================================================================
	// Application-specific code
	// ================================================================================================

	bool quit = false;
	bool fading = false;
	int fadeLength = 3000;
	int fadeStartTick;

	// Open music as a stream
	FMOD::Sound *song1, *song2, *effect;
	result = system->createStream("Song1.mp3", FMOD_DEFAULT, 0, &song1);
	FMODErrorCheck(result);
	result = system->createStream("Song2.mp3", FMOD_DEFAULT, 0, &song2);
	FMODErrorCheck(result);

	// Load sound effects into memory (not streaming)
//.........这里部分代码省略.........

int FMOD_Main()
{
    void *extraDriverData = NULL;
    Common_Init(&extraDriverData);

    FMOD::Studio::System* system = NULL;
    ERRCHECK( FMOD::Studio::System::create(&system) );

    // The example Studio project is authored for 5.1 sound, so set up the system output mode to match
    FMOD::System* lowLevelSystem = NULL;
    ERRCHECK( system->getLowLevelSystem(&lowLevelSystem) );
    ERRCHECK( lowLevelSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0) );

    ERRCHECK( system->initialize(32, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );

    FMOD::Studio::Bank* masterBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank) );

    FMOD::Studio::Bank* stringsBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.strings.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank) );

    FMOD::Studio::Bank* musicBank = NULL;
    FMOD_RESULT result = system->loadBankFile(Common_MediaPath("Music.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &musicBank);
    if (result != FMOD_OK)
    {
        // Music bank is not exported by default, you will have to export from the tool first
        Common_Fatal("Please export music.bank from the Studio tool to run this example");
    }

    FMOD::Studio::EventDescription* eventDescription = NULL;
    ERRCHECK( system->getEvent("event:/Music/Music", &eventDescription) );

    FMOD::Studio::EventInstance* eventInstance = NULL;
    ERRCHECK( eventDescription->createInstance(&eventInstance) );
    
    CallbackInfo info;
    Common_Mutex_Create(&info.mMutex);

    ERRCHECK( eventInstance->setUserData(&info) );
    ERRCHECK( eventInstance->setCallback(markerCallback, FMOD_STUDIO_EVENT_CALLBACK_TIMELINE_MARKER | FMOD_STUDIO_EVENT_CALLBACK_TIMELINE_BEAT) );
    ERRCHECK( eventInstance->start() );

    do
    {
        Common_Update();

        ERRCHECK( system->update() );

        int position;
        ERRCHECK( eventInstance->getTimelinePosition(&position) );

        Common_Draw("==================================================");
        Common_Draw("Music Callback Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2015-2015.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Timeline = %d", position);
        Common_Draw("");
        // Obtain lock and look at our strings
        Common_Mutex_Enter(&info.mMutex);
        for (size_t i=0; i<info.mEntries.size(); ++i)
        {
            Common_Draw("    %s\n", info.mEntries[i].c_str());
        }
        Common_Mutex_Leave(&info.mMutex);
        Common_Draw("");
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    ERRCHECK( system->release() );

    Common_Mutex_Destroy(&info.mMutex);
    Common_Close();

    return 0;
}

int main(int argc, char *argv[])
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD::Channel         *channel = 0;
    FMOD::DSP             *dsp     = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    FMOD_SPEAKERMODE       speakermode;
    FMOD_CAPS              caps;
    int                    key, numdrivers;
    unsigned int           version;    
    unsigned int           datalength = 0, soundlength;
    char                   name[256];
    unsigned int           adjustedlatency;

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }

    /* 
        System initialization (recommended startup sequence)
    */
    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    if (numdrivers == 0)
    {
        result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
        ERRCHECK(result);
    }
    else
    {
        result = system->getDriverCaps(0, &caps, 0, &speakermode);
        ERRCHECK(result);

        result = system->setSpeakerMode(speakermode);       /* Set the user selected speaker mode. */
        ERRCHECK(result);

        if (caps & FMOD_CAPS_HARDWARE_EMULATED)             /* The user has the 'Acceleration' slider set to off!  This is really bad for latency!. */
        {                                                   /* You might want to warn the user about this. */
            result = system->setDSPBufferSize(1024, 10);
            ERRCHECK(result);
        }
#ifdef LOWLATENCY
        else
        {
            result = system->setDSPBufferSize(256, 4);
        }
#endif
        result = system->getDriverInfo(0, name, 256, 0);
        ERRCHECK(result);

        if (strstr(name, "SigmaTel"))   /* Sigmatel sound devices crackle for some reason if the format is PCM 16bit.  PCM floating point output seems to solve it. */
        {
            result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR);
            ERRCHECK(result);
        }
    }

    result = system->init(100, FMOD_INIT_NORMAL, 0);
    if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)         /* Ok, the speaker mode selected isn't supported by this soundcard.  Switch it back to stereo... */
    {
        result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
        ERRCHECK(result);
            
        result = system->init(100, FMOD_INIT_NORMAL, 0);/* ... and re-init. */
        ERRCHECK(result);
    }
    /* 
        System initialization complete (recommended startup sequence)
    */
 

    /*
        Create user sound to record into.  Set it to loop for playback.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));
    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = RECORDRATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5; /* 5 second buffer, doesnt really matter how big this is, but not too small of course. */
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    printf("========================================================================\n");
    printf("Record with realtime playback example.\n");
//.........这里部分代码省略.........

SoundManager::SoundManager()
: _systemVolumeMusic(1.0f)
, _systemVolumeFX(1.0f)
, _userVolumeMusic(1.0f)
, _userVolumeFX(1.0f)
, _expectedSystemVolumeFX(1.0f)
, _expectedSystemVolumeMusic(1.0f)
, _expectedUserVolumeFX(1.0f)
, _expectedUserVolumeMusic(1.0f)
{
    // Sound Init
#ifdef FMOD_ACTIVE
    //    void *extraDriverData = NULL;
    //    utilityInit(&extraDriverData);
    
    _system = NULL;
    ERRCHECK(FMOD::Studio::System::create(&_system) );
    
#if CC_TARGET_PLATFORM==CC_PLATFORM_ANDROID

    FMOD::System * lowLevelSystem = nullptr;
    ERRCHECK(_system->getLowLevelSystem(&lowLevelSystem));
    ERRCHECK(lowLevelSystem->setOutput(FMOD_OUTPUTTYPE_AUDIOTRACK));

    unsigned int bufferLength;
    int numBuffers;

    ERRCHECK(lowLevelSystem->getDSPBufferSize(&bufferLength, &numBuffers));

    CCLOG("SoundManager - Default Buffer Length %u", bufferLength);
    CCLOG("SoundManager - Default Number of Buffer %d", numBuffers);

    bufferLength = 256; // 512; // 1024;
    numBuffers = 2; // 2; // 8;

    ERRCHECK(lowLevelSystem->setDSPBufferSize(bufferLength, numBuffers));

    ERRCHECK(lowLevelSystem->getDSPBufferSize(&bufferLength, &numBuffers));

    CCLOG("SoundManager - New Buffer Length %u", bufferLength);
    CCLOG("SoundManager - New Number of Buffer %d", numBuffers);

    int sampleRate;
    FMOD_SPEAKERMODE speakerMode;
    int numRawSpeakers;

    ERRCHECK(lowLevelSystem->getSoftwareFormat(&sampleRate , &speakerMode, &numRawSpeakers));

    CCLOG("SoundManager - Default Sample Rate %d", sampleRate);
    CCLOG("SoundManager - Default Speaker mode %d", (int)speakerMode);
    CCLOG("SoundManager - Default Number of Raw Speakers %d", numRawSpeakers);

    sampleRate = 24000;

    ERRCHECK(lowLevelSystem->setSoftwareFormat(sampleRate, speakerMode, numRawSpeakers));

    ERRCHECK(lowLevelSystem->getSoftwareFormat(&sampleRate , &speakerMode, &numRawSpeakers));

    CCLOG("SoundManager - New Sample Rate %d", sampleRate);
    CCLOG("SoundManager - New Speaker mode %d", (int)speakerMode);
    CCLOG("SoundManager - New Number of Raw Speakers %d", numRawSpeakers);

#endif

    ERRCHECK(_system->initialize(64, FMOD_STUDIO_INIT_LIVEUPDATE, FMOD_INIT_NORMAL, 0) );
//    ERRCHECK(_system->initialize(64, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, 0) );
    //    ERRCHECK(_system->initialize(32, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, 0) );
    ERRCHECK(FMOD_Debug_Initialize(FMOD_DEBUG_LEVEL_WARNING, FMOD_DEBUG_MODE_TTY, 0, nullptr));
    //    ERRCHECK(_system->initialize(32, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );

//    _masterBank = NULL;
//    ERRCHECK(_system->loadBankFile(getMediaPath(FILE_BANK_MASTER_DATA_NAME), FMOD_STUDIO_LOAD_BANK_NORMAL, &_masterBank));
    
    //_stringsBank = static_cast<FMOD::Studio::Bank*>(this->loadAudioGroup(FILE_BANK_MASTER_META_NAME));
    _stringsBank = NULL;
    ERRCHECK(_system->loadBankFile(getMediaPath(FILE_BANK_MASTER_META_NAME), FMOD_STUDIO_LOAD_BANK_NORMAL, &_stringsBank));
    
    Director::getInstance()->getScheduler()->schedule(schedule_selector(SoundManager::updateSounds), this, 0.05, false);
#endif
}

int FMOD_Main()
{
    void *extraDriverData = NULL;
    Common_Init(&extraDriverData);

    FMOD::Studio::System* system = NULL;
    ERRCHECK( FMOD::Studio::System::create(&system) );

    // The example Studio project is authored for 5.1 sound, so set up the system output mode to match
    FMOD::System* lowLevelSystem = NULL;
    ERRCHECK( system->getLowLevelSystem(&lowLevelSystem) );
    ERRCHECK( lowLevelSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0) );

    ERRCHECK( system->initialize(1024, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );

    FMOD::Studio::Bank* masterBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank) );

    FMOD::Studio::Bank* stringsBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Master Bank.strings.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank) );

    FMOD::Studio::Bank* ambienceBank = NULL;
    ERRCHECK( system->loadBankFile(Common_MediaPath("Character.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &ambienceBank) );

    FMOD::Studio::EventDescription* eventDescription = NULL;
    ERRCHECK( system->getEvent("event:/Character/Radio/Command", &eventDescription) );

    FMOD::Studio::EventInstance* eventInstance = NULL;
    ERRCHECK( eventDescription->createInstance(&eventInstance) );
    
    ProgrammerSoundContext programmerSoundContext;
    ERRCHECK( system->getLowLevelSystem(&programmerSoundContext.system) );

    ERRCHECK( eventInstance->setUserData(&programmerSoundContext) );
    ERRCHECK( eventInstance->setCallback(programmerSoundCallback, FMOD_STUDIO_EVENT_CALLBACK_CREATE_PROGRAMMER_SOUND | FMOD_STUDIO_EVENT_CALLBACK_DESTROY_PROGRAMMER_SOUND) );

    ERRCHECK( eventInstance->setVolume(0.75f) );

    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_ACTION1))
        {
            programmerSoundContext.soundName = Common_MediaPath("640166main_MECO.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION2))
        {
            programmerSoundContext.soundName = Common_MediaPath("640169main_Press to ATO.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION3))
        {
            programmerSoundContext.soundName = Common_MediaPath("640148main_APU Shutdown.ogg");
            ERRCHECK( eventInstance->start() );
        }

        if (Common_BtnPress(BTN_ACTION4))
        {
            programmerSoundContext.soundName = Common_MediaPath("640165main_Lookin At It.ogg");
            ERRCHECK( eventInstance->start() );
        }

        ERRCHECK( system->update() );

        Common_Draw("==================================================");
        Common_Draw("Programmer Sound Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2016-2016.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Press %s to play event with sound 1", Common_BtnStr(BTN_ACTION1));
        Common_Draw("Press %s to play event with sound 2", Common_BtnStr(BTN_ACTION2));
        Common_Draw("Press %s to play event with sound 3", Common_BtnStr(BTN_ACTION3));
        Common_Draw("Press %s to play event with sound 4", Common_BtnStr(BTN_ACTION4));
        Common_Draw("");
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    ERRCHECK( system->release() );

    Common_Close();

    return 0;
}