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C++ System::createDSPByType方法代码示例

本文整理汇总了C++中fmod::System::createDSPByType方法的典型用法代码示例。如果您正苦于以下问题：C++ System::createDSPByType方法的具体用法？C++ System::createDSPByType怎么用？C++ System::createDSPByType使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类fmod::System的用法示例。


在下文中一共展示了System::createDSPByType方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: main


//.........这里部分代码省略.........
    printf("Press '2' to play right speaker only\n");
	printf("Press '3' to play from both speakers\n");
    printf("Press '[' to pan sound left\n");
    printf("Press ']' to pan sound right\n");
	printf("Press 'v/V' to increase volume\n");
	printf("Press 'd/D' to decrease volume\n");
	printf("Press '6' pitch octave down\n");
	printf("Press '7' pitch semitone down\n");
	printf("Press '8' pitch semitone up\n");
	printf("Press '9' pitch octave up\n");
    printf("Press 'Esc' to quit\n");
	printf("Press 'n' pitch scale down\n");
    printf("Press 'm' pitch scale up\n");
    printf("\n");
	
	for (count = 0; count < numSounds; count++)
    {
		result = system->playSound(FMOD_CHANNEL_FREE, sound[count], false, &channel[count]);
		ERRCHECK(result);
		
		bool paused;
		
		channel[0]->getPaused(&paused);
		ERRCHECK(result);
		
		paused = !paused;
		
		result = channel[0]->setPaused(paused);
		ERRCHECK(result);
	}

	
	//Create the DSP effects.
	result = system->createDSPByType(FMOD_DSP_TYPE_PITCHSHIFT, &dsppitch);
    ERRCHECK(result);
	result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_DISTORTION, &dspdistortion);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_CHORUS, &dspchorus);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_PARAMEQ, &dspparameq);
    ERRCHECK(result);
	
	for (count = 0; count < numSounds; count++)
    {
		channel[count]->getVolume(&volume);
		channel[count]->setVolume(.3);
		channel[count]->getVolume(&volume);
		
	}
	printf("Initial Volume: %f \n", volume);
	
	channel[0]->getFrequency(&frequency);
	channel[0]->getFrequency(&originalFrequency);
	printf("Initial Frequency: %f \n", frequency);
	
	
    /*
	 Main loop.
开发者ID:avinashb-sd，项目名称:MaestroRepo，代码行数:67，代码来源:GroupB.cpp

示例2: FMOD_Main

int FMOD_Main()
{
    FMOD::System    *system;
    FMOD::Channel   *channel = 0;
    FMOD::DSP       *dsp;
    FMOD_RESULT      result;
    unsigned int     version;
    void            *extradriverdata = 0;

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

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

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }

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

    /*
        Create an oscillator DSP units for the tone.
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_OSCILLATOR, &dsp);
    ERRCHECK(result);
    result = dsp->setParameterFloat(FMOD_DSP_OSCILLATOR_RATE, 440.0f); /* Musical note 'A' */
    ERRCHECK(result);

    /*
        Main loop
    */
    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_ACTION1))
        {
            if (channel)
            {
                result = channel->stop();
                ERRCHECK(result);
            }

            result = system->playDSP(dsp, 0, true, &channel);
            ERRCHECK(result);
            result = channel->setVolume(0.5f);
            ERRCHECK(result);
            result = dsp->setParameterInt(FMOD_DSP_OSCILLATOR_TYPE, 0);
            ERRCHECK(result);
            result = channel->setPaused(false);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION2))
        {
            if (channel)
            {
                result = channel->stop();
                ERRCHECK(result);
            }

            result = system->playDSP(dsp, 0, true, &channel);
            ERRCHECK(result);
            result = channel->setVolume(0.125f);
            ERRCHECK(result);
            result = dsp->setParameterInt(FMOD_DSP_OSCILLATOR_TYPE, 1);
            ERRCHECK(result);
            result = channel->setPaused(false);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION3))
        {
            if (channel)
            {
                result = channel->stop();
                ERRCHECK(result);
            }

            result = system->playDSP(dsp, 0, true, &channel);
            ERRCHECK(result);
            result = channel->setVolume(0.125f);
            ERRCHECK(result);
            result = dsp->setParameterInt(FMOD_DSP_OSCILLATOR_TYPE, 2);
            ERRCHECK(result);
            result = channel->setPaused(false);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION4))
        {
            if (channel)
//.........这里部分代码省略.........
开发者ID:Athlos，项目名称:Circuit-Collector，代码行数:101，代码来源:generate_tone.cpp

示例3: FMOD_Main

int FMOD_Main()
{
    void *extradriverdata = 0;    
    Common_Init(&extradriverdata);

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

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

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }
    
    result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);
        

    /*
        Create a new channel group to hold the convolution DSP unit
    */
    FMOD::ChannelGroup* reverbGroup;
    result = system->createChannelGroup("reverb", &reverbGroup);
    ERRCHECK(result);

    
    /*
        Create a new channel group to hold all the channels and process the dry path
    */
    FMOD::ChannelGroup* mainGroup;
    result = system->createChannelGroup("main", &mainGroup);
    ERRCHECK(result);

    /*
        Create the convultion DSP unit and set it as the tail of the channel group
    */
    FMOD::DSP* reverbUnit;    
    result = system->createDSPByType(FMOD_DSP_TYPE_CONVOLUTIONREVERB, &reverbUnit);
    ERRCHECK(result);
    result = reverbGroup->addDSP(FMOD_CHANNELCONTROL_DSP_TAIL, reverbUnit);
    ERRCHECK(result);

    /*
        Open the impulse response wav file, but use FMOD_OPENONLY as we want
        to read the data into a seperate buffer
    */
    FMOD::Sound* irSound;
    result = system->createSound(Common_MediaPath("standrews.wav"), FMOD_DEFAULT | FMOD_OPENONLY, NULL, &irSound);
    ERRCHECK(result);

    /*
        Retrieve the sound information for the Impulse Response input file
    */
    FMOD_SOUND_FORMAT irSoundFormat;
    FMOD_SOUND_TYPE irSoundType;
    int irSoundBits, irSoundChannels;
    result = irSound->getFormat(&irSoundType, &irSoundFormat, &irSoundChannels, &irSoundBits);
    ERRCHECK(result);
    unsigned int irSoundLength;
    result = irSound->getLength(&irSoundLength, FMOD_TIMEUNIT_PCM);
    ERRCHECK(result);

    
    if (irSoundFormat != FMOD_SOUND_FORMAT_PCM16)
    {
        /*
            For simplicity of the example, if the impulse response is the wrong format just display an error
        */        
        Common_Fatal("Impulse Response file is the wrong audio format");
    }

    /*
        The reverb unit expects a block of data containing a single 16 bit int containing
        the number of channels in the impulse response, followed by PCM 16 data
    */
    unsigned int irDataLength = sizeof(short) * (irSoundLength * irSoundChannels + 1);
    short* irData = (short*)malloc(irDataLength);
    irData[0] = irSoundChannels;
    unsigned int irDataRead;
    result = irSound->readData(&irData[1], irDataLength - sizeof(short), &irDataRead);
    ERRCHECK(result);
    result = reverbUnit->setParameterData(FMOD_DSP_CONVOLUTION_REVERB_PARAM_IR, irData, irDataLength);
    ERRCHECK(result);

    /*
        Don't pass any dry signal from the reverb unit, instead take the dry part
        of the mix from the main signal path
    */
    result = reverbUnit->setParameterFloat(FMOD_DSP_CONVOLUTION_REVERB_PARAM_DRY, -80.0f);    
    ERRCHECK(result);

    /*
//.........这里部分代码省略.........
开发者ID:Athlos，项目名称:Circuit-Collector，代码行数:101，代码来源:convolution_reverb.cpp

示例4: FMOD_Main

int FMOD_Main()
{
    FMOD::System       *system        = 0;
    FMOD::Sound        *sound         = 0;
    FMOD::Channel      *channel       = 0;
    FMOD::ChannelGroup *mastergroup   = 0; 
    FMOD::DSP          *dsplowpass    = 0;
    FMOD::DSP          *dsphighpass   = 0;
    FMOD::DSP          *dspecho       = 0;
    FMOD::DSP          *dspflange     = 0;
    FMOD_RESULT         result;
    unsigned int        version;
    void               *extradriverdata = 0;

    Common_Init(&extradriverdata);

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

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

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }

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

    result = system->getMasterChannelGroup(&mastergroup);
    ERRCHECK(result);

    result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_DEFAULT, 0, &sound);
    ERRCHECK(result);

    result = system->playSound(sound, 0, false, &channel);
    ERRCHECK(result);

    /*
        Create some effects to play with
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
    ERRCHECK(result);

    /*
        Add them to the master channel group.  Each time an effect is added (to position 0) it pushes the others down the list.
    */
    result = mastergroup->addDSP(0, dsplowpass);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dsphighpass);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dspecho);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dspflange);
    ERRCHECK(result);

    /*
        By default, bypass all effects.  This means let the original signal go through without processing.
        It will sound 'dry' until effects are enabled by the user.
    */
    result = dsplowpass->setBypass(true);
    ERRCHECK(result);
    result = dsphighpass->setBypass(true);
    ERRCHECK(result);
    result = dspecho->setBypass(true);
    ERRCHECK(result);
    result = dspflange->setBypass(true);
    ERRCHECK(result);

    /*
        Main loop
    */
    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_MORE))
        {
            bool paused;

            result = channel->getPaused(&paused);
            ERRCHECK(result);

            paused = !paused;

            result = channel->setPaused(paused);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION1))
//.........这里部分代码省略.........
开发者ID:Athlos，项目名称:Circuit-Collector，代码行数:101，代码来源:effects.cpp

示例5: main

int main(int argc, char *argv[])
{
    FMOD::System        *system;
    FMOD::Sound         *sound;
    FMOD::Channel       *channel;
    FMOD::DSP           *dsplowpass, *dspchorus, *dsphead, *dspchannelmixer;
	FMOD::DSPConnection *dsplowpassconnection, *dspchorusconnection;
    FMOD_RESULT          result;
    int                  key;
    unsigned int         version;
    float                pan = 0;

    /*
        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->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->createSound("../media/drumloop.wav", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound);
    ERRCHECK(result);

    printf("===============================================================================\n");
    printf("DSP effect per speaker example. Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("===============================================================================\n");
    printf("Press 'L' to toggle lowpass on/off on left speaker only\n");
    printf("Press 'R' to toggle chorus on/off on right speaker only\n");
    printf("Press '[' to pan sound left\n");
    printf("Press ']' to pan sound right\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    result = system->playSound(FMOD_CHANNEL_FREE, sound, false, &channel);
    ERRCHECK(result);

    /*
        Create the DSP effects.
    */  
    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);

    result = system->createDSPByType(FMOD_DSP_TYPE_CHORUS, &dspchorus);
    ERRCHECK(result);

    /*
        Connect up the DSP network
    */

    /*
        When a sound is played, a subnetwork is set up in the DSP network which looks like this.
        Wavetable is the drumloop sound, and it feeds its data from right to left.

        [DSPHEAD]<------------[DSPCHANNELMIXER]
    */  
    result = system->getDSPHead(&dsphead);
    ERRCHECK(result);

    result = dsphead->getInput(0, &dspchannelmixer, 0);
    ERRCHECK(result);

    /*
        Now disconnect channeldsp head from wavetable to look like this.

        [DSPHEAD]             [DSPCHANNELMIXER]
    */
    result = dsphead->disconnectFrom(dspchannelmixer);
    ERRCHECK(result);

    /*
        Now connect the 2 effects to channeldsp head.  
		Store the 2 connections this makes so we can set their speakerlevels later.

                  [DSPLOWPASS]
                 /x           
        [DSPHEAD]             [DSPCHANNELMIXER]
                 \y           
                  [DSPCHORUS]
    */
    result = dsphead->addInput(dsplowpass, &dsplowpassconnection);  /* x = dsplowpassconnection */
    ERRCHECK(result);
    result = dsphead->addInput(dspchorus, &dspchorusconnection);    /* y = dspchorusconnection */
    ERRCHECK(result);
    
    /*
        Now connect the wavetable to the 2 effects

                  [DSPLOWPASS]
                 /x          \
        [DSPHEAD]             [DSPCHANNELMIXER]
//.........这里部分代码省略.........
开发者ID:InfoSmart，项目名称:InSource-Singleplayer，代码行数:101，代码来源:main.cpp

示例6: main


//.........这里部分代码省略.........
    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");
    printf("Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("\n");
    printf("Try #define LOWLATENCY to reduce latency for more modern machines!\n");
    printf("========================================================================\n");
    printf("\n");
    printf("Press a key to start recording.  Playback will start %d samples (%d ms) later.\n", LATENCY, LATENCY * 1000 / RECORDRATE);
    printf("\n");

    _getch();

    printf("Press 'E' to toggle an effect on/off.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    result = system->recordStart(0, sound, true);
    ERRCHECK(result);

    result = sound->getLength(&soundlength, FMOD_TIMEUNIT_PCM);
    ERRCHECK(result);

    /*
        Create a DSP effect to play with.
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dsp);
    ERRCHECK(result);
    result = dsp->setParameter(FMOD_DSP_FLANGE_RATE, 4.0f);
    ERRCHECK(result);
    result = dsp->setBypass(true);   
    ERRCHECK(result);
    
    adjustedlatency = LATENCY;  /* This might change depending on record block size. */
    
    /*
        Main loop.
    */
    do
    {
        static unsigned int lastrecordpos = 0, samplesrecorded = 0;
        unsigned int recordpos = 0, recorddelta;
        
        key = 0;
        if (_kbhit())
        {
            key = _getch();
        }

        if (key == 'e' || key == 'E')
        {
            bool bypass;
            dsp->getBypass(&bypass);
            dsp->setBypass(!bypass);
            if (bypass)
            {
                FMOD_REVERB_PROPERTIES prop = FMOD_PRESET_CONCERTHALL;
                system->setReverbProperties(&prop);
            }
开发者ID:chandonnet，项目名称:FTB2015，代码行数:67，代码来源:main.cpp

示例7: main

int main(int argc, char *argv[])
{
    FMOD::System     *system        = 0;
    FMOD::Sound      *sound         = 0;
    FMOD::Channel    *channel       = 0;
    FMOD::DSP        *dsplowpass    = 0;
    FMOD::DSP        *dsphighpass   = 0;
    FMOD::DSP        *dspecho       = 0;
    FMOD::DSP        *dspflange     = 0;
    FMOD::DSP        *dspdistortion = 0;
    FMOD::DSP        *dspchorus     = 0;
    FMOD::DSP        *dspparameq    = 0;
    FMOD_RESULT       result;
    int               key;
    unsigned int      version;

    /*
        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->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->createSound("../media/drumloop.wav", FMOD_SOFTWARE, 0, &sound);
    ERRCHECK(result);

    printf("=================================================================\n");
    printf("Effects Example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("=================================================================\n");
    printf("\n");
    printf("Press SPACE to paused/unpause sound.\n");
    printf("Press 1 to toggle dsplowpass effect.\n");
    printf("Press 2 to toggle dsphighpass effect.\n");
    printf("Press 3 to toggle dspecho effect.\n");
    printf("Press 4 to toggle dspflange effect.\n");
    printf("Press 5 to toggle dspdistortion effect.\n");
    printf("Press 6 to toggle dspchorus effect.\n");
    printf("Press 7 to toggle dspparameq effect.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    result = system->playSound(FMOD_CHANNEL_FREE, sound, false, &channel);
    ERRCHECK(result);

    /*
        Create some effects to play with.
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_DISTORTION, &dspdistortion);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_CHORUS, &dspchorus);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_PARAMEQ, &dspparameq);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case ' ' :
                {
                    bool paused;

                    channel->getPaused(&paused);
                    ERRCHECK(result);

                    paused = !paused;

                    result = channel->setPaused(paused);
                    ERRCHECK(result);
                    break;
                }
                case '1' :
                {
                    bool active;
//.........这里部分代码省略.........
开发者ID:YanisBreton，项目名称:wolf3d，代码行数:101，代码来源:main.cpp

示例8: main


//.........这里部分代码省略.........
    printf("                                                       (e.ogg)        \n");
    printf("Press 'A' to mute/unmute group A\n");
    printf("Press 'B' to mute/unmute group B\n");
    printf("\n");
    printf("Press 'R' to place reverb on group A\n");
    printf("Press 'F' to place flange on group B\n");
    printf("Press 'L' to place lowpass on master group (everything)\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    /*
        Start all the sounds!
    */
    for (count = 0; count < 5; count++)
    {
        result = system->playSound(FMOD_CHANNEL_FREE, sound[count], true, &channel[count]);
        ERRCHECK(result);
        if (count < 2)
        {
            result = channel[count]->setChannelGroup(groupA);
        }
        else
        {
            result = channel[count]->setChannelGroup(groupB);
        }
        ERRCHECK(result);
        result = channel[count]->setPaused(false);
        ERRCHECK(result);
    }

    /*
        Create the DSP effects we want to apply to our submixes.
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_SFXREVERB, &dspreverb);
    ERRCHECK(result);

    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
    ERRCHECK(result);
    result = dspflange->setParameter(FMOD_DSP_FLANGE_RATE, 1.0f);
    ERRCHECK(result);

    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);
    result = dsplowpass->setParameter(FMOD_DSP_LOWPASS_CUTOFF, 500.0f);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
            case 'a' :
            case 'A' :
            {
                static bool mute = true;

                groupA->setMute(mute);

                mute = !mute;
                break;
开发者ID:kikuchi-hiroshi，项目名称:moyai，代码行数:67，代码来源:main.cpp

示例9: main

int main(int argc, char *argv[])
{
    FMOD::System    *system;
    FMOD::Channel   *channel = 0;
    FMOD::DSP       *dsp     = 0;
    FMOD_RESULT      result;
    int              key;
    unsigned int     version;

    /*
        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);
        getch();
        return 0;
    }

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

    /*
        Create an oscillator DSP unit for the tone.
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_OSCILLATOR, &dsp);
    ERRCHECK(result);
    result = dsp->setParameter(FMOD_DSP_OSCILLATOR_RATE, 440.0f);
    ERRCHECK(result);

    printf("======================================================================\n");
    printf("GenerateTone Example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("======================================================================\n\n");
    printf("\n");
    printf("Press '1' to play a sine wave\n");
    printf("Press '2' to play a square wave\n");
    printf("Press '3' to play a triangle wave\n");
    printf("Press '4' to play a saw wave\n");
    printf("Press '5' to play a white noise\n");
    printf("Press 's' to stop channel\n");
    printf("\n");
    printf("Press 'v'/'V' to change channel volume\n");
    printf("Press 'f'/'F' to change channel frequency\n");
    printf("Press '['/']' to change channel pan\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    /*
        Main loop
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case '1' :
                {
                    result = system->playDSP(FMOD_CHANNEL_REUSE, dsp, true, &channel);

                    channel->setVolume(0.5f);
                    result = dsp->setParameter(FMOD_DSP_OSCILLATOR_TYPE, 0);
                    ERRCHECK(result);
                    channel->setPaused(false);
                    break;
                }
                case '2' :
                {
                    result = system->playDSP(FMOD_CHANNEL_REUSE, dsp, true, &channel);

                    channel->setVolume(0.125f);
                    result = dsp->setParameter(FMOD_DSP_OSCILLATOR_TYPE, 1);
                    ERRCHECK(result);
                    channel->setPaused(false);
                    break;
                }
                case '3' :
                {
                    result = system->playDSP(FMOD_CHANNEL_REUSE, dsp, true, &channel);

                    channel->setVolume(0.5f);
                    result = dsp->setParameter(FMOD_DSP_OSCILLATOR_TYPE, 2);
                    ERRCHECK(result);
                    channel->setPaused(false);
                    break;
                }
                case '4' :
                {
                    result = system->playDSP(FMOD_CHANNEL_REUSE, dsp, true, &channel);

                    channel->setVolume(0.125f);
                    result = dsp->setParameter(FMOD_DSP_OSCILLATOR_TYPE, 4);
//.........这里部分代码省略.........
开发者ID:YanisBreton，项目名称:wolf3d，代码行数:101，代码来源:main.cpp


注：本文中的fmod::System::createDSPByType方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。