cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   GarrettVD
   Member

   Hey guys,
   I'm not sure if this is a common Occourence in cocosdension or not, but it seems like prolong used of the simPle audio engine causes the sound to cut out completely. Im not sure what's going on, but it may have something to do with the way I'm allocating and deallocating my CDSoundSource objects. Even after stopping a sound I'm ending up with retain count of 1. Imkind of scratching my head at this point. Has anyone experienced a similar issue?

   Thanks!

   Posted 5 months ago #
2. 

   Steve Oldmeadow
   Administrator

   CDSoundSources are a finite resource so it is probably to do with the way you are using them. Stopping a sound has no effect on whether a CDSoundSource is retained or not. You must retain CDSoundSources for as long as you want to use them and you must release them when you are finished.

   Posted 5 months ago #
3. 

   GarrettVD
   Member

   Ohh I thought they were auto released. Okay, I'll have to do some profiling in Instruments this morning!

   Thanks Steve,

   -G.

   Posted 5 months ago #
4. 

   GarrettVD
   Member

   For what it's worth, just a friendly update to let you know I fixed my issue. Looks like I was over retaining.

   -G.

   Posted 5 months ago #
5. 

   ShaneT
   Member

   Hi,

   Great you fixed your issue.

   In my init section I simply preload the sound

   [[SimpleAudioEngine sharedEngine] preloadEffect:@"cheer.mp3"];

   When I want to play it I use

   [[SimpleAudioEngine sharedEngine] playEffect:@"cheer.mp3"];

   This is ok isn't it?

   Do I have to release the sound though out the game anywhere?

   Cheers

   Shane

   Posted 5 months ago #
6. 

   zaaroth
   Member

   You are playing the sounds straight. His issue was caused by mishandling the memory of the CDSoundSources. It is the other road to play sounds (you get more control over sound that way).

   Posted 5 months ago #
7. 

   ShaneT
   Member

   Thanks. Was just checking I was doing it the right way.

   Posted 5 months ago #
8. 

   Steve Oldmeadow
   Administrator

   @ShaneT - the golden rule is if you are using SimpleAudioEngine and you want to modify the state of a sound after playback starts (e.g fade it in or out) or loop it then you should use CDSoundSource. Otherwise use playEffect as you are doing. The reason is there is a limited pool of sound playback objects called sources that are recycled. When you use CDSoundSource the underlying source is locked whereas when you use playEffect the next source in line is used regardless of whether it is playing or not.

   Posted 5 months ago #

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