int main(int argc, char *argv[]) { FMOD_SYSTEM *system; FMOD_SOUND *sound[5]; FMOD_CHANNEL *channel[5]; FMOD_CHANNELGROUP *groupA, *groupB; FMOD_DSP *dspreverb, *dspflange, *dsplowpass; FMOD_RESULT result; int key, count; unsigned int version; /* Create a System object and initialize. */ result = FMOD_System_Create(&system); ERRCHECK(result); result = FMOD_System_GetVersion(system, &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 = FMOD_System_Init(system, 32, FMOD_INIT_NORMAL, 0); ERRCHECK(result); result = FMOD_System_CreateSound(system, "../media/drumloop.wav", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound[0]); ERRCHECK(result); result = FMOD_System_CreateSound(system, "../media/jaguar.wav", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound[1]); ERRCHECK(result); result = FMOD_System_CreateSound(system, "../media/c.ogg", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound[2]); ERRCHECK(result); result = FMOD_System_CreateSound(system, "../media/d.ogg", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound[3]); ERRCHECK(result); result = FMOD_System_CreateSound(system, "../media/e.ogg", FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound[4]); ERRCHECK(result); result = FMOD_System_CreateChannelGroup(system, "Group A", &groupA); ERRCHECK(result); result = FMOD_System_CreateChannelGroup(system, "Group B", &groupB); ERRCHECK(result); printf("======================================================================\n"); printf("Sub-mixing example. Copyright (c) Firelight Technologies 2004-2005.\n"); printf("======================================================================\n"); printf(" (drumloop.wav) \n"); printf(" / \n"); printf(" (groupA) \n"); printf(" (reverb)/ \\ \n"); printf(" / (jaguar.wav) \n"); printf("(soundcard)--(lowpass)--(systemhead) \n"); printf(" \\ (c.ogg) \n"); printf(" (flange) / \n"); printf(" \\(groupB)--(d.ogg) \n"); printf(" \\ \n"); 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 everything\n"); printf("Press 'Esc' to quit\n"); printf("\n"); /* Start all the sounds! */ for (count = 0; count < 5; count++) { result = FMOD_System_PlaySound(system, FMOD_CHANNEL_FREE, sound[count], TRUE, &channel[count]); ERRCHECK(result); if (count < 2) { result = FMOD_Channel_SetChannelGroup(channel[count], groupA); } else { result = FMOD_Channel_SetChannelGroup(channel[count], groupB); } ERRCHECK(result); result = FMOD_Channel_SetPaused(channel[count], FALSE); ERRCHECK(result); } /* Create the DSP effects we want to apply to our submixes. */ result = FMOD_System_CreateDSPByType(system, FMOD_DSP_TYPE_REVERB, &dspreverb); ERRCHECK(result); result = FMOD_System_CreateDSPByType(system, FMOD_DSP_TYPE_FLANGE, &dspflange); ERRCHECK(result); result = FMOD_DSP_SetParameter(dspflange, FMOD_DSP_FLANGE_RATE, 1.0f); ERRCHECK(result); result = FMOD_System_CreateDSPByType(system, FMOD_DSP_TYPE_LOWPASS, &dsplowpass); ERRCHECK(result); result = FMOD_DSP_SetParameter(dsplowpass, FMOD_DSP_LOWPASS_CUTOFF, 500.0f); ERRCHECK(result); /* Main loop. */ do { if (kbhit()) { key = getch(); switch (key) { case 'a' : case 'A' : { static int mute = TRUE; FMOD_ChannelGroup_SetMute(groupA, mute); mute = !mute; break; } case 'b' : case 'B' : { static int mute = TRUE; FMOD_ChannelGroup_SetMute(groupB, mute); mute = !mute; break; } case 'r' : case 'R' : { static int reverb = TRUE; if (reverb) { FMOD_ChannelGroup_AddDSP(groupA, dspreverb); } else { FMOD_DSP_Remove(dspreverb); } reverb = !reverb; break; } case 'f' : case 'F' : { static int flange = TRUE; if (flange) { FMOD_ChannelGroup_AddDSP(groupB, dspflange); } else { FMOD_DSP_Remove(dspflange); } flange = !flange; break; } case 'l' : case 'L' : { static int lowpass = TRUE; if (lowpass) { FMOD_System_AddDSP(system, dsplowpass); } else { FMOD_DSP_Remove(dsplowpass); } lowpass = !lowpass; break; } } } FMOD_System_Update(system); { int channelsplaying = 0; FMOD_System_GetChannelsPlaying(system, &channelsplaying); printf("Channels Playing %2d\r", channelsplaying); } Sleep(10); } while (key != 27); printf("\n"); /* Shut down */ for (count = 0; count < 5; count++) { result = FMOD_Sound_Release(sound[count]); ERRCHECK(result); } result = FMOD_DSP_Release(dspreverb); ERRCHECK(result); result = FMOD_DSP_Release(dspflange); ERRCHECK(result); result = FMOD_DSP_Release(dsplowpass); ERRCHECK(result); result = FMOD_ChannelGroup_Release(groupA); ERRCHECK(result); result = FMOD_ChannelGroup_Release(groupB); ERRCHECK(result); result = FMOD_System_Close(system); ERRCHECK(result); result = FMOD_System_Release(system); ERRCHECK(result); return 0; }
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 = FMOD_System_GetVersion(system, &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 = FMOD_System_Init(system, 32, FMOD_INIT_NORMAL, NULL); ERRCHECK(result); /* Create DSP units for each type of noise we want. */ result = FMOD_System_CreateDSPByType(system, FMOD_DSP_TYPE_OSCILLATOR, &dsp); ERRCHECK(result); result = FMOD_DSP_SetParameter(dsp, 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 = FMOD_System_PlayDSP(system, FMOD_CHANNEL_REUSE, dsp, TRUE, &channel); FMOD_Channel_SetVolume(channel, 0.5f); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_OSCILLATOR_TYPE, 0); ERRCHECK(result); FMOD_Channel_SetPaused(channel, FALSE); break; } case '2' : { result = FMOD_System_PlayDSP(system, FMOD_CHANNEL_REUSE, dsp, TRUE, &channel); FMOD_Channel_SetVolume(channel, 0.125f); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_OSCILLATOR_TYPE, 1); ERRCHECK(result); FMOD_Channel_SetPaused(channel, FALSE); break; } case '3' : { result = FMOD_System_PlayDSP(system, FMOD_CHANNEL_REUSE, dsp, TRUE, &channel); FMOD_Channel_SetVolume(channel, 0.5f); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_OSCILLATOR_TYPE, 2); ERRCHECK(result); FMOD_Channel_SetPaused(channel, FALSE); break; } case '4' : { result = FMOD_System_PlayDSP(system, FMOD_CHANNEL_REUSE, dsp, TRUE, &channel); FMOD_Channel_SetVolume(channel, 0.125f); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_OSCILLATOR_TYPE, 4); ERRCHECK(result); FMOD_Channel_SetPaused(channel, FALSE); break; } case '5' : { result = FMOD_System_PlayDSP(system, FMOD_CHANNEL_REUSE, dsp, TRUE, &channel); FMOD_Channel_SetVolume(channel, 0.25f); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_OSCILLATOR_TYPE, 5); ERRCHECK(result); FMOD_Channel_SetPaused(channel, FALSE); break; } case 's' : { FMOD_Channel_Stop(channel); break; } case 'v' : { float volume; FMOD_Channel_GetVolume(channel, &volume); volume -= 0.1f; FMOD_Channel_SetVolume(channel, volume); break; } case 'V' : { float volume; FMOD_Channel_GetVolume(channel, &volume); volume += 0.1f; FMOD_Channel_SetVolume(channel, volume); break; } case 'f' : { float frequency; FMOD_Channel_GetFrequency(channel, &frequency); frequency -= 500.0f; FMOD_Channel_SetFrequency(channel, frequency); break; } case 'F' : { float frequency; FMOD_Channel_GetFrequency(channel, &frequency); frequency += 500.0f; FMOD_Channel_SetFrequency(channel, frequency); break; } case '[' : { float pan; FMOD_Channel_GetPan(channel, &pan); pan -= 0.1f; FMOD_Channel_SetPan(channel, pan); break; } case ']' : { float pan; FMOD_Channel_GetPan(channel, &pan); pan += 0.1f; FMOD_Channel_SetPan(channel, pan); break; } } } FMOD_System_Update(system); { float frequency = 0, volume = 0, pan = 0; int playing = FALSE; if (channel) { FMOD_Channel_GetFrequency(channel, &frequency); FMOD_Channel_GetVolume(channel, &volume); FMOD_Channel_GetPan(channel, &pan); FMOD_Channel_IsPlaying(channel, &playing); } printf("Channel %s : Frequency %.1f Volume %.1f Pan %.1f \r", playing ? "playing" : "stopped", frequency, volume, pan); fflush(stdout); } Sleep(10); } while (key != 27); printf("\n"); /* Shut down */ result = FMOD_DSP_Release(dsp); ERRCHECK(result); result = FMOD_System_Close(system); ERRCHECK(result); result = FMOD_System_Release(system); ERRCHECK(result); 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 = FMOD_System_GetVersion(system, &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 = FMOD_System_GetNumDrivers(system, &numdrivers); ERRCHECK(result); if (numdrivers == 0) { result = FMOD_System_SetOutput(system, FMOD_OUTPUTTYPE_NOSOUND); ERRCHECK(result); } else { result = FMOD_System_GetDriverCaps(system, 0, &caps, 0, &speakermode); ERRCHECK(result); result = FMOD_System_SetSpeakerMode(system, 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 = FMOD_System_SetDSPBufferSize(system, 1024, 10); ERRCHECK(result); } #ifdef LOWLATENCY else { result = FMOD_System_SetDSPBufferSize(system, 256, 4); } #endif result = FMOD_System_GetDriverInfo(system, 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 = FMOD_System_SetSoftwareFormat(system, 48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR); ERRCHECK(result); } } result = FMOD_System_Init(system, 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 = FMOD_System_SetSpeakerMode(system, FMOD_SPEAKERMODE_STEREO); ERRCHECK(result); result = FMOD_System_Init(system, 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 = FMOD_System_CreateSound(system, 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 2004-2011.\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 = FMOD_System_RecordStart(system, 0, sound, TRUE); ERRCHECK(result); result = FMOD_Sound_GetLength(sound, &soundlength, FMOD_TIMEUNIT_PCM); ERRCHECK(result); /* Create a DSP effect to play with. */ result = FMOD_System_CreateDSPByType(system, FMOD_DSP_TYPE_FLANGE, &dsp); ERRCHECK(result); result = FMOD_DSP_SetParameter(dsp, FMOD_DSP_FLANGE_RATE, 4.0f); ERRCHECK(result); result = FMOD_DSP_SetBypass(dsp, 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') { int bypass; FMOD_DSP_GetBypass(dsp, &bypass); FMOD_DSP_SetBypass(dsp, !bypass); if (bypass) { FMOD_REVERB_PROPERTIES prop = FMOD_PRESET_CONCERTHALL; FMOD_System_SetReverbProperties(system, &prop); } else { FMOD_REVERB_PROPERTIES prop = FMOD_PRESET_OFF; FMOD_System_SetReverbProperties(system, &prop); } printf("\n\n *** TURN DSP EFFECT %s ** \n\n", bypass ? "ON" : "OFF"); } FMOD_System_GetRecordPosition(system, 0, &recordpos); ERRCHECK(result); recorddelta = recordpos >= lastrecordpos ? recordpos - lastrecordpos : recordpos + soundlength - lastrecordpos; samplesrecorded += recorddelta; if (samplesrecorded >= adjustedlatency && !channel) { result = FMOD_System_PlaySound(system, FMOD_CHANNEL_FREE, sound, 0, &channel); ERRCHECK(result); result = FMOD_Channel_AddDSP(channel, dsp, 0); ERRCHECK(result); } if (channel && recorddelta) { unsigned int playrecorddelta; unsigned int playpos = 0; int adjusting = 0; float smootheddelta; float dampratio = 0.97f; static unsigned int minrecorddelta = (unsigned int)-1; /* If the record driver steps the position of the record cursor in larger increments than the user defined latency value, then we should increase our latency value to match. */ if (recorddelta < minrecorddelta) { minrecorddelta = recorddelta; if (adjustedlatency < recorddelta) { adjustedlatency = recorddelta; } } FMOD_Channel_GetPosition(channel, &playpos, FMOD_TIMEUNIT_PCM); playrecorddelta = recordpos >= playpos ? recordpos - playpos : recordpos + soundlength - playpos; /* Smooth total */ { static float total = 0; total = total * dampratio; total += playrecorddelta; smootheddelta = total * (1.0f - dampratio); } if (smootheddelta < adjustedlatency - DRIFTTHRESHOLD || smootheddelta > soundlength / 2) /* if play cursor is catching up to record (or passed it), slow playback down */ { FMOD_Channel_SetFrequency(channel, RECORDRATE - (RECORDRATE / 50)); /* Decrease speed by 2% */ adjusting = 1; } else if (smootheddelta > adjustedlatency + DRIFTTHRESHOLD) /* if play cursor is falling too far behind record, speed playback up */ { FMOD_Channel_SetFrequency(channel, RECORDRATE + (RECORDRATE / 50)); /* Increase speed by 2% */ adjusting = 2; } else { FMOD_Channel_SetFrequency(channel, RECORDRATE); /* Otherwise set to normal rate */ adjusting = 0; } printf("REC %5d (REC delta %5d) : PLAY %5d, PLAY/REC diff %5d %s\r", recordpos, recorddelta, playpos, (int)smootheddelta, adjusting == 1 ? "DECREASE SPEED" : adjusting == 2 ? "INCREASE SPEED" : " "); } lastrecordpos = recordpos; FMOD_System_Update(system); Sleep(10); } while (key != 27); printf("\n"); /* Shut down */ result = FMOD_Sound_Release(sound); ERRCHECK(result); result = FMOD_System_Release(system); ERRCHECK(result); return 0; }