DSound的所有音频特技使用和参数解释详细笔记(音频特效)[静态缓冲]

时间：2021-09-09 19:44:43
#define STRICT
#include <windows.h>
#include "resource.h"
#include <basetsd.h>
#include <commdlg.h>
#include <mmreg.h>
#include <dxerr9.h>
#include <dsound.h>
#include <DSUtil.h>
#include <DXUtil.h>
#include <DSUtil.cpp>
#include <DXUtil.cpp>
#pragma comment(lib,"comctl32.lib")
#pragma comment(lib,"dxerr9.lib")
#pragma comment(lib,"winmm.lib")
#pragma comment(lib,"dsound.lib")
#pragma comment(lib,"dxguid.lib")
#pragma comment(lib,"odbc32.lib")
#pragma comment(lib,"odbccp32.lib")
#define NUM_PLAY_NOTIFICATIONS  16
CSoundManager * g_pSoundManager=new CSoundManager();
CStreamingSound * g_pStreamingSound = NULL;
CSound * g_pSound = NULL;
HANDLE g_hNotificationEvent=NULL;
BOOL g_bLooped=FALSE;

DWORD WINAPI NotificationProc(LPVOID lpParameter)
{
        HWND hWnd = (HWND) lpParameter;
        BOOL bDone=FALSE;
        while(!bDone)
        {
                WaitForSingleObject(g_hNotificationEvent,INFINITE);
                if(FAILED(g_pStreamingSound->HandleWaveStreamNotification(g_bLooped)))
                        bDone=TRUE;
        }
        return NULL;
}
INT_PTR CALLBACK DialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
        UNREFERENCED_PARAMETER(lParam);
        switch (message)
        {
        case WM_INITDIALOG:
                return (INT_PTR)TRUE;
        case WM_COMMAND:
                if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
                {
                        EndDialog(hDlg, LOWORD(wParam));
                        return (INT_PTR)TRUE;
                }
                break;
        case WM_DESTROY:
                //SAFE_DELETE(g_pStreamingSound);
                SAFE_DELETE(g_pSound);
                SAFE_DELETE(g_pSoundManager);
                CloseHandle(g_hNotificationEvent);
                break;
        case WM_LBUTTONDOWN:
                g_hNotificationEvent = CreateEvent( NULL, FALSE, FALSE, NULL );
                g_pSoundManager->Initialize(hDlg,DSSCL_PRIORITY);
                g_pSoundManager->SetPrimaryBufferFormat(2,22050,16);
                CreateThread(NULL,0,NotificationProc,hDlg,0,0);
                LPTSTR szFileName=_T("D:\\Windows.wav");
                CWaveFile WaveFileTest;
                WaveFileTest.Open(szFileName,NULL,WAVEFILE_READ);
        WAVEFORMATEX* pWFEx = WaveFileTest.GetFormat();
                if(pWFEx->wFormatTag != WAVE_FORMAT_PCM)printf("不是PCM格式,无法应该特效\n");
                WaveFileTest.Close();
                //---------->>>>>关键
                g_pSoundManager->Create(&g_pSound,szFileName,DSBCAPS_CTRLFX,GUID_NULL);
                LPDIRECTSOUNDBUFFER pDSB = g_pSound->GetBuffer(0);
                //LPDIRECTSOUNDBUFFER pDSB = g_pStreamingSound->GetBuffer(0);//使用动态缓冲区
                LPDIRECTSOUNDBUFFER8 pDSB8;
                pDSB->QueryInterface(IID_IDirectSoundBuffer8,(LPVOID*)&pDSB8);
                /*                        和声特技:不是指很多人合唱，而是指声音的重叠，即通过原声和回声的重叠，使得声音加宽，加厚。
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_CHORUS;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXCHORUS pDirectSoundFxChorus = NULL;//和声特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXChorus,
                        (LPVOID*)&pDirectSoundFxChorus);
                DSFXChorus DsFxChorus;
                DsFxChorus.fWetDryMix = 50.0f;//干湿混合//湿信号（处理过的信号）对干信号（未处理的信号）的比率
                //范围:[DSFXCHORUS_WETDRYMIX_MIN - DSFXCHORUS_WETDRYMIX_MAX] 即 [0.0f - 100.0f]
                DsFxChorus.fDepth = 50.0f;//深度//低频振荡器调整延迟的百分比
                //范围:[DSFXCHORUS_DEPTH_MIN - DSFXCHORUS_DEPTH_MAX] 即 [0.0f - 100.0f]
                DsFxChorus.fFeedback = -50.0f;//反馈//输出信号反馈到输入信号的百分比
                //范围:[DSFXCHORUS_FEEDBACK_MIN - DSFXCHORUS_FEEDBACK_MAX] 即 [-99.0f - 99.0f]
                DsFxChorus.fFrequency = 5.0f;//频率//低频振荡器的频率
                //范围:[DSFXCHORUS_FREQUENCY_MIN - DSFXCHORUS_FREQUENCY_MAX] 即 [0.0f - 10.0f]
                DsFxChorus.fDelay = 10.0f;//延迟//播放之前的延迟，以毫秒作单位
                //范围:[DSFXCHORUS_DELAY_MIN - DSFXCHORUS_DELAY_MAX] 即 [0.0f - 20.0f]
                DsFxChorus.lWaveform = DSFXCHORUS_WAVE_TRIANGLE;//波形//低频振荡器的波形
                //DSFXCHORUS_WAVE_TRIANGLE:三角回声;
                //DSFXCHORUS_WAVE_SIN:正弦回声;
                DsFxChorus.lPhase = DSFXCHORUS_PHASE_NEG_180;//相位//左右低频振荡器之间的微分相位
                //DSFXCHORUS_PHASE_NEG_180        -180度
                //DSFXCHORUS_PHASE_NEG_90         -90度
                //DSFXCHORUS_PHASE_ZERO           0度
                //DSFXCHORUS_PHASE_90             90度
                //DSFXCHORUS_PHASE_180            180度
                pDirectSoundFxChorus->SetAllParameters(&DsFxChorus);
                
                SAFE_RELEASE(pDirectSoundFxChorus);
                */
                /*                        压限特技:是针对声音不同部分的音量进行增减，可以对某段音频中音量低于某一限度的部分进行平滑的音量提升（其余部分不变）；对音量高于某一限度的部分进行平滑的音量衰减（其余部分不变），或二者同时作用，简单说，就是平衡音量
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_COMPRESSOR;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXCOMPRESSOR pDirectSoundFxCompressor = NULL;//压限特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXCompressor,
                        (LPVOID*)&pDirectSoundFxCompressor);
                DSFXCompressor DsFxCompressor;
                DsFxCompressor.fGain = 20.0f;//压限后输出信号的强度，缺省值是 0 db
                //范围:[DSFXCOMPRESSOR_GAIN_MIN - DSFXCOMPRESSOR_GAIN_MAX] 即 [-60.0f - 60.0f]
                DsFxCompressor.fGain = 20.0f;//压限达到最大值的时间，缺省是 10 ms
                //范围:[DSFXCOMPRESSOR_ATTACK_MIN - DSFXCOMPRESSOR_ATTACK_MAX] 即 [0.01f - 500.0f]
                DsFxCompressor.fRelease = 1000.0f;//输入小于fThreshold后，压缩停止的时间，缺省是200ms
                //范围:[DSFXCOMPRESSOR_RELEASE_MIN - DSFXCOMPRESSOR_RELEASE_MAX] 即 [50.0f - 3000.0f]
                DsFxCompressor.fThreshold = 1000.0f;//压缩开始的临界点的db值，缺省是-20db
                //范围:[DSFXCOMPRESSOR_THRESHOLD_MIN - DSFXCOMPRESSOR_THRESHOLD_MAX] 即 [-60.0f - 0.0f]
                DsFxCompressor.fRatio = 1000.0f;//压缩的比率，缺省是3，即3:1
                //范围:[DSFXCOMPRESSOR_RATIO_MIN - DSFXCOMPRESSOR_RATIO_MAX] 即 [1.0f - 100.0f]
                DsFxCompressor.fPredelay = 2.0f;//lThreshold达到临界点，Attackphase开始前的延迟时间
                //范围:[DSFXCOMPRESSOR_PREDELAY_MIN - DSFXCOMPRESSOR_PREDELAY_MAX] 即 [0.0f - 4.0f]
                pDirectSoundFxCompressor->SetAllParameters(&DsFxCompressor);
                SAFE_RELEASE(pDirectSoundFxCompressor);
                */
                /*                        失真特技
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_DISTORTION;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXDISTORTION pDirectSoundFxDistortion = NULL;
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXDistortion,
                        (LPVOID*)&pDirectSoundFxDistortion);
                DSFXDistortion DsFxDistortion;
                DsFxDistortion.fGain = -30.0f;//信号失真后的音量的强度变化，缺省是比原来衰减18db。
                //范围:[DSFXDISTORTION_GAIN_MIN - DSFXDISTORTION_GAIN_MAX] 即 [-60.0f - 0.0f]
                DsFxDistortion.fEdge = -30.0f;//失真的强度，用百分比来表示，缺省值是15
                //范围:[DSFXDISTORTION_EDGE_MIN - DSFXDISTORTION_EDGE_MAX] 即 [0.0f - 100.0f]
                DsFxDistortion.fPostEQCenterFrequency = 2000.0f;//信号叠加的中心频率，缺省是2400hz
                //范围:[DSFXDISTORTION_POSTEQCENTERFREQUENCY_MIN - DSFXDISTORTION_POSTEQCENTERFREQUENCY_MAX] 即 [100.0f - 8000.0f]
                DsFxDistortion.fPostEQBandwidth = 2000.0f;//信号的带宽，缺省是2400hz
                //范围:[DSFXDISTORTION_POSTEQBANDWIDTH_MIN - DSFXDISTORTION_POSTEQBANDWIDTH_MAX] 即 [100.0f - 8000.0f]
                DsFxDistortion.fPreLowpassCutoff = 8000.0f;//高通滤波的最高值，缺省是8000hz
                //范围:[DSFXDISTORTION_PRELOWPASSCUTOFF_MIN - DSFXDISTORTION_PRELOWPASSCUTOFF_MAX] 即 [100.0f - 8000.0f]
                
                pDirectSoundFxDistortion->SetAllParameters(&DsFxDistortion);
                SAFE_RELEASE(pDirectSoundFxDistortion);
                */
                /*                        回声特技:模拟声音被远处的平面反射回来的效果
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_ECHO;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXECHO pDirectSoundFxEcho = NULL;//回声特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXEcho,
                        (LPVOID*)&pDirectSoundFxEcho);
                DSFXEcho DsFxEcho;
                DsFxEcho.fWetDryMix = 50.0f;//处理过的信号和没有处理的信号的比率，缺省值是50
                //范围:[DSFXECHO_WETDRYMIX_MIN - DSFXECHO_WETDRYMIX_MAX] 即 [0.0f - 100.0f]
                DsFxEcho.fFeedback = 50.0f;//输出信号反馈到输入信号的百分比,缺省值是50
                //范围:[DSFXECHO_FEEDBACK_MIN - DSFXECHO_FEEDBACK_MAX] 即 [0.0f - 100.0f]
                DsFxEcho.fLeftDelay = 500.0f;//左声道延迟的时间，缺省值500ms
                //范围:[DSFXECHO_LEFTDELAY_MIN - DSFXECHO_LEFTDELAY_MAX] 即 [1.0f - 2000.0f]
                DsFxEcho.fRightDelay = 500.0f;//右声道延迟的时间，缺省值500ms
                //范围:[DSFXECHO_RIGHTDELAY_MIN - DSFXECHO_RIGHTDELAY_MAX] 即 [1.0f - 2000.0f]
                DsFxEcho.lPanDelay = 0.0f;//是否左右声道交替延迟，缺省值0，左右声道不交替
                //范围:[DSFXECHO_PANDELAY_MIN - DSFXECHO_PANDELAY_MAX] 即 [0.0f - 100.0f]
                pDirectSoundFxEcho->SetAllParameters(&DsFxEcho);
                SAFE_RELEASE(pDirectSoundFxEcho);
                */
                /*                        混响特技:简单说就是声音余韵，音源在空间反射出来的声音。适当设置混响，可以更真实、更有现场感的再现声音源，也可以起到修饰、美化的作用。表现宽阔的，传声真实的效果。
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_WAVES_REVERB;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXWAVESREVERB pDirectSoundFxWavesErverb = NULL;//混响特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXWavesReverb,
                        (LPVOID*)&pDirectSoundFxWavesErverb);
                DSFXWavesReverb DsFxWavesReverb;
                DsFxWavesReverb.fInGain = -45.0f;//输入信号的音量的大小,即db值,缺省值是0db
                //范围:[DSFX_WAVESREVERB_INGAIN_MIN - DSFX_WAVESREVERB_INGAIN_MAX] 即 [-96.0f - 0.0f]
                DsFxWavesReverb.fReverbMix = -45.0f;//回响混合音量强度大小，用db值来表示，缺省值是0db。
                //范围:[DSFX_WAVESREVERB_REVERBMIX_MIN - DSFX_WAVESREVERB_REVERBMIX_MAX] 即 [-96.0f - 0.0f]
                DsFxWavesReverb.fReverbTime = 1000.0f;//回响的时间，单位是ms，缺省值是1000.0fms
                //范围:[DSFX_WAVESREVERB_REVERBTIME_MIN - DSFX_WAVESREVERB_REVERBTIME_MAX] 即 [0.001f - 3000.0f]
                DsFxWavesReverb.fInGain = 0.500f;//高频回响所占时间的比率，缺省值0.001f。TRatio;
                //范围:[DSFX_WAVESREVERB_HIGHFREQRTRATIO_MIN - DSFX_WAVESREVERB_HIGHFREQRTRATIO_MAX] 即 [0.001f - 0.999f]
                
                pDirectSoundFxWavesErverb->SetAllParameters(&DsFxWavesReverb);
                SAFE_RELEASE(pDirectSoundFxWavesErverb);
                */
                /*                        波浪特技:一般翻译为波浪特技，用于设置变调效果，通过拷贝失调的声音，或者把某个频率点改变，调节声音分离的时间、音调深度。可以用来产生颤动、急促的声音。
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_FLANGER;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXFLANGER pDirectSoundFxFlanger = NULL;//波浪特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXFlanger,
                        (LPVOID*)&pDirectSoundFxFlanger);
                DSFXFlanger DsFxFlanger;
                DsFxFlanger.fWetDryMix = 50.0f;//处理过的信号和没有处理的信号的比率，缺省值是50
                //范围:[DSFXFLANGER_WETDRYMIX_MIN - DSFXFLANGER_WETDRYMIX_MAX] 即 [0.0f - 100.0f]
                DsFxFlanger.fDepth = 50.0f;//低频振荡器调整延迟时间的百分比，缺省值是100
                //范围:[DSFXFLANGER_DEPTH_MIN - DSFXFLANGER_DEPTH_MAX] 即 [0.0f - 100.0f]
                DsFxFlanger.fFeedback = -50.0f;//输出信号反馈到输入信号的百分比,缺省值是-50
                //范围:[DSFXFLANGER_FEEDBACK_MIN - DSFXFLANGER_FEEDBACK_MAX] 即 [-99.0f - 99.0f]
                DsFxFlanger.fFrequency = 0.5f;//低频振荡器的频率，缺省值是0.25
                //范围:[DSFXFLANGER_FREQUENCY_MIN - DSFXFLANGER_FREQUENCY_MAX] 即 [0.0f - 10.0f]
                DsFxFlanger.fDelay = 2.0f;//播放之前的延迟，以毫秒作单位，缺省值是2ms
                //范围:[DSFXFLANGER_DELAY_MIN - DSFXFLANGER_DELAY_MAX] 即 [0.0f - 4.0f]
                DsFxFlanger.lWaveform = DSFXFLANGER_WAVE_TRIANGLE;//低频振荡器的波形，分为三角形，和正弦波形
                //取值:[DSFXFLANGER_WAVE_TRIANGLE ,DSFXFLANGER_WAVE_SIN] 即 [三角波,正弦波]
                DsFxFlanger.lPhase = DSFXFLANGER_PHASE_ZERO;//相位
                //取值:[DSFXFLANGER_PHASE_NEG_180        , //-180度
                //                DSFXFLANGER_PHASE_NEG_90        , //-90度
                //                DSFXFLANGER_PHASE_ZERO                , //0度
                //                DSFXFLANGER_PHASE_90                , //90度
                //                DSFXFLANGER_PHASE_180                ] //180度
                pDirectSoundFxFlanger->SetAllParameters(&DsFxFlanger);
                SAFE_RELEASE(pDirectSoundFxFlanger);
                */
                /*                        咕噜特技[机械化]:咕噜效果处理。一种可以试音源产生咕噜声的调幅处理模式。
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_GARGLE;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXGARGLE pDirectSoundFxGargle = NULL;//咕噜特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXGargle,
                        (LPVOID*)&pDirectSoundFxGargle);
                DSFXGargle DsFxGargle;
                DsFxGargle.dwRateHz = 500;//调制波频率，缺省值是20hz
                //范围:[DSFXGARGLE_RATEHZ_MIN - DSFXGARGLE_RATEHZ_MAX] 即 [1 - 1000]
                DsFxGargle.dwWaveShape = DSFXGARGLE_WAVE_TRIANGLE;
                //取值:[DSFXGARGLE_WAVE_SQUARE ,DSFXGARGLE_WAVE_TRIANGLE] 即 [方波,三角波]
                pDirectSoundFxGargle->SetAllParameters(&DsFxGargle);
                SAFE_RELEASE(pDirectSoundFxGargle);
                */
                /*                        参数平衡特技:参数平衡，用于为音频设置参数均衡器。强化或衰减指定的频率。对于增强音乐的效果特别有效。
                DSEFFECTDESC DsEffectDesc;
                ZeroMemory(&DsEffectDesc,sizeof(DSEFFECTDESC));
                DsEffectDesc.dwSize = sizeof(DSEFFECTDESC);
                DsEffectDesc.dwFlags = 0;
                DsEffectDesc.guidDSFXClass = GUID_DSFX_STANDARD_PARAMEQ;
                DWORD dwResults;
                pDSB8->SetFX(1,&DsEffectDesc,&dwResults);
                LPDIRECTSOUNDFXPARAMEQ pDirectSoundFxParamEq = NULL;//参数平衡特技接口
                pDSB8->GetObjectInPath(DsEffectDesc.guidDSFXClass,0,
                        IID_IDirectSoundFXParamEq,
                        (LPVOID*)&pDirectSoundFxParamEq);
                DSFXParamEq DsFxParamEq;
                DsFxParamEq.fCenter = 8000.0f;//中心的频率，缺省值是8000hz
                //范围:[DSFXPARAMEQ_CENTER_MIN - DSFXPARAMEQ_CENTER_MAX] 即 [80.0f - 16000.0f]
                DsFxParamEq.fBandwidth = 12.0f;//音的带宽，以半音为单位，缺省值是12
                //范围:[DSFXPARAMEQ_BANDWIDTH_MIN - DSFXPARAMEQ_BANDWIDTH_MAX] 即 [1.0f - 36.0f]
                DsFxParamEq.fGain = 0.0f;//音频的音量，缺省值是0db
                //范围:[DSFXPARAMEQ_GAIN_MIN - DSFXPARAMEQ_GAIN_MAX] 即 [-15.0f - 15.0f]
                pDirectSoundFxParamEq->SetAllParameters(&DsFxParamEq);
                SAFE_RELEASE(pDirectSoundFxParamEq);
                */
                                
                /*                        多个特效同时使用
                const int iFxCount = 3;
                DSEFFECTDESC pDsEffectDesc[iFxCount];
                ZeroMemory(pDsEffectDesc,sizeof(DSEFFECTDESC) * iFxCount);
                pDsEffectDesc[0].dwSize = sizeof(DSEFFECTDESC);
                pDsEffectDesc[0].dwFlags = 0;
                pDsEffectDesc[0].guidDSFXClass = GUID_DSFX_STANDARD_ECHO;
                pDsEffectDesc[1].dwSize = sizeof(DSEFFECTDESC);
                pDsEffectDesc[1].dwFlags = 0;
                pDsEffectDesc[1].guidDSFXClass = GUID_DSFX_STANDARD_GARGLE;
                pDsEffectDesc[2].dwSize = sizeof(DSEFFECTDESC);
                pDsEffectDesc[2].dwFlags = 0;
                pDsEffectDesc[2].guidDSFXClass = GUID_DSFX_STANDARD_FLANGER;
                DWORD pdwResults[iFxCount];
                pDSB8->SetFX(iFxCount,pDsEffectDesc,pdwResults);
                //第三个特技使用默认值
                
                LPDIRECTSOUNDFXECHO pDirectSoundFxEcho = NULL;//回声特技接口
                pDSB8->GetObjectInPath(pDsEffectDesc[0].guidDSFXClass,0,
                        IID_IDirectSoundFXEcho,
                        (LPVOID*)&pDirectSoundFxEcho);
                DSFXEcho DsFxEcho;
                DsFxEcho.fWetDryMix = 50.0f;
                DsFxEcho.fFeedback = 50.0f;
                DsFxEcho.fLeftDelay = 500.0f;
                DsFxEcho.fRightDelay = 500.0f;
                DsFxEcho.lPanDelay = 0.0f;
                pDirectSoundFxEcho->SetAllParameters(&DsFxEcho);
                SAFE_RELEASE(pDirectSoundFxEcho);
                LPDIRECTSOUNDFXGARGLE pDirectSoundFxGargle = NULL;//咕噜特技接口
                pDSB8->GetObjectInPath(pDsEffectDesc[1].guidDSFXClass,0,
                        IID_IDirectSoundFXGargle,
                        (LPVOID*)&pDirectSoundFxGargle);
                DSFXGargle DsFxGargle;
                DsFxGargle.dwRateHz = 1000;
                DsFxGargle.dwWaveShape = DSFXGARGLE_WAVE_TRIANGLE;
                pDirectSoundFxGargle->SetAllParameters(&DsFxGargle);
                SAFE_RELEASE(pDirectSoundFxGargle);
                */
                SAFE_RELEASE(pDSB8);
                //<<<<<<<----------
                g_pSound->Play();
                break;
        }
        return (INT_PTR)FALSE;
}
int _tmain(int argc, _TCHAR* argv[])
{
        CoInitialize(NULL);
        DialogBox(NULL,MAKEINTRESOURCE(IDD_DIALOGDEMO),NULL,DialogProc);
        CoUninitialize();
        return 0;
}
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