Im using DirectX 8.0 and want to be able to play more than one sound at the same time. I''ve run into a problem when trying to do this because when i call a function that plays a sound, and call it again, the first sound stops and the second one takes over. How do I overcome this?

use fmod

Im using DirectMusic from directX 8. Its incredibly simple to do.
Here is the entire source for mu DSound class:
(I suggest copying and pasting it into a text editor)

//-----------------------------------------------------------------------------
// File: DSOUND.cpp
//
// Desc: Plays Sounds
//
// Copyright (c) 2001 Dan
//-----------------------------------------------------------------------------
#define INITGUID


#include
#include "DSOUND.h"


//---------------------------------------------------------------------
// Contstructor / Destructor
//---------------------------------------------------------------------
DSOUND::DSOUND( bool SoundOn )
{
pLoader = NULL;
pPerformance = NULL;
SoundEnabled = SoundOn;
}

DSOUND::~DSOUND()
{
}


//-----------------------------------------------------------------------------
// Name: Initalize()
// Desc: Terminates the DirectSound Components
//-----------------------------------------------------------------------------
bool DSOUND::Initalize()
{
if( SoundEnabled )
{
CoInitialize(NULL);

CoCreateInstance( CLSID_DirectMusicLoader, NULL, CLSCTX_INPROC,
IID_IDirectMusicLoader8, (void**)&pLoader );
Log(" Initalized Loader object\n");

CoCreateInstance( CLSID_DirectMusicPerformance, NULL, CLSCTX_INPROC,
IID_IDirectMusicPerformance8, (void**)&pPerformance );

Log(" Initalized Performance object\n");

pPerformance->InitAudio( NULL, NULL, NULL,
DMUS_APATH_SHARED_STEREOPLUSREVERB, 64,
DMUS_AUDIOF_ALL, NULL );
Log(" Initalized audio\n\n");

return true;
}

return false;
}


//-----------------------------------------------------------------------------
// Name: PlayAudioFile()
// Desc: Plays an audio file. If it is not loaded, it loads it. If already
// loaded it is played
// To use format is: PlayAudioFile( L"File.wav" );
//-----------------------------------------------------------------------------
bool DSOUND:layAudioFile( WCHAR *wstrFileName )
{
if( SoundEnabled )
{
DWORD dwFlags;

IDirectMusicSegment8* pSegment = NULL;

if( FAILED( pLoader->LoadObjectFromFile( CLSID_DirectMusicSegment,
IID_IDirectMusicSegment8,
wstrFileName,
(LPVOID*) &pSegment ) ) )
{
Log("ERROR: Could not find an the audio file\n");
return false;
}

// Download the segment''s instruments to the synthesizer
pSegment->Download( pPerformance );

// Play segment on the default audio path
dwFlags |= DMUS_SEGF_SECONDARY;
pPerformance->PlaySegmentEx(pSegment,
NULL, NULL,
dwFlags,
0,
NULL, NULL, NULL );
return true;
}

Log( "Sound System has Been disabled\n" );

return true;
}


//-----------------------------------------------------------------------------
// Name: Terminate()
// Desc: Terminates the DirectSound Components
//-----------------------------------------------------------------------------
bool DSOUND::Terminate()
{
Log( " Terminating DirectSound\n" );

if( SoundEnabled )
{
pPerformance->Stop( NULL, NULL, 0, 0 );
Log( " Stopping Output\n" );

pPerformance->CloseDown();
Log( " Closing Down\n" );

pLoader->Release();
Log( " Releasing Loader\n" );

pPerformance->Release();
Log( " Releasing Performance\n" );

CoUninitialize();
Log( " UnInitalizing\n" );
}

Log(" DirectSound Terminated\n\n");

return true;
}

Now all I need to do is call PlayAudioFile everytime I want to play a sound. It Mixes them together automatically so they all play at once. If you want to use this just remember that the syntax for calling PlayAudioFile is .PlayAudioFile( L"filename.wav" ); Hope this helped.

Um, that post looked a little interesting...
1) For some reason the include at the top didnt show up. its dsound.h. in lower case. The class name is the same but in upper case.
2) On PlayAudioFile the P turned into a face. does (: P) do that?
3) There are only 3 Data members to the class in the .h file. They are

IDirectMusicLoader8* pLoader;
IDirectMusicPerformance8* pPerformance;
bool SoundEnabled;

This would''ve already been answered in the DirectX forum.
Set the dwFlags parameter of PlaySegmentEx to DMUS_SEGF_SECONDARY.



-Forcas

"Elvis is alive. He is Barney the purple dinosaur. He is the pied piper that leads our children into the wages of sin and eternal damnation."

Isn''t there any finished sound engine out there? One where you just can type PlaySound(SoundObject)? I''d like to be able to pan between left and right speaker and also change the volume but those are all the demands I''ve got...

Johan Torp - http://www.destruction.nu

LOL

Eric Wright o0Programmer0o

AcidRain Productions