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Hi,
is it possible to call multiple loadBuffersAsynchronously request simulatiously?
I need this to load sounds on request when my game is already running. But I cannot garantee that loadBuffersAsynchronously finished before I need to have to reload other sounds.
32 sounds are not enough for our game, so I need a efficient way to load some sounds when needed.
zombie
Steve Oldmeadow
Administrator
Yes, just increase CD_MAX_BUFFERS. The only limitation for buffers is memory.
To answer your original query - you don't have to use loadBuffersAsynchronously, you can use loadBuffer to synchronously load sounds on demand. If you load a sound into a buffer that is already occupied the prior sound will be cleaned up.
Steve Oldmeadow
Administrator
Yes, the thread you run loadBuffer on will wait until the buffer has loaded but you could use NSOperation to create your own asynchronous loading method if loadBuffersAsynchronously isn't what you need. If you have the memory then loading all the sounds you need is the easiest approach.
vinhsteven
Member
I have 64 sounds effect to play. I also increase CD_MAX_BUFFERS & CD_MAX_SOURCES to 64. When I play sound effect, everything is ok, no error. But I cant listen anything. I also debug but every value is ok. I 've successed with less than 32 sounds before. Here my code in init method:
- (void) init {
int channelGroups[CGROUP_TOTAL]; -> CGROUP_TOTAL = 2
channelGroups[CGROUP_SE_1] = 32;
channelGroups[CGROUP_SE_2] = 32;
[CDAudioManager initAsynchronously:kAudioManagerFxPlusMusicIfNoOtherAudio channelGroupDefinitions:channelGroups channelGroupTotal:CGROUP_TOTAL];
am = [CDAudioManager sharedManager];
appState = kAppStateAudioManagerInitialising;
// Load sound buffers asynchrounously
NSMutableArray *loadRequests = [[[NSMutableArray alloc] init] autorelease];
[loadRequests addObject:[[[CDBufferLoadRequest alloc] init:DTD_SE_CURSOR_MOVE1 filePath:@"se01.caf"] autorelease]];
........
[loadRequests addObject:[[[CDBufferLoadRequest alloc] init:DTD_SE_ENM_WARN2 filePath:@"se64.caf"] autorelease]];
[[am soundEngine] loadBuffersAsynchronously:loadRequests];
[[am soundEngine] setMasterGain:soundVolume];
appState = kAppStateSoundBuffersLoading;
}
Anybody could give me some answers? Thanks so much.
Steve Oldmeadow
Administrator
@vinhsteven - for starters set CD_MAX_SOURCES to 32, that is the system limit. If that doesn't fix things then please post the console log from CocosDenshion.
vinhsteven
Member
If CD_MAX_SOURCES = 32, console show this error:"*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'requested total channels exceeds CD_MAX_SOURCES'". According to you "CD_MAX_SOURCES to 32, that is the system limit", how could I load & play more than 32 sounds?
Steve Oldmeadow
Administrator
You have to understand the difference between sources and buffers.
Sources are the number of sounds you can play simultaneously and also referred to as channels.
Buffers are the actual sound data. When you play a sound you get the data from a buffer and play it using a source.
Sources are fixed at 32 but I'm sure you don't want to play 64 sounds simultaneously but rather just play 64 different sounds. You need to adjust your channel definitions to something like:
channelGroups[CGROUP_SE_1] = 16;
channelGroups[CGROUP_SE_2] = 16;You must log in to post.