cocos2d for iPhone

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

1. 

   argv0
   Member

   We're having a strange sound problem in our game. One of the secret levels has tons of collectible objects (all packed close together) so as you walk through the area, the collect sound plays quite frequently - sometimes up to 4 times at once.

   So partway through the level, sometimes all the collect sounds will just stop, and not play again for the rest of the level. It kind of feels like denshion is being overloaded and can't handle all the playback, but its the same sound every time.

   And to make it even stranger, at the end of the level the "level complete" background plays, and then all of a sudden the sounds start working again.

   Its really confusing me and I know very little about what's happening, any help would be appreciated.

   Posted 2 years ago #
2. 

   Steve Oldmeadow
   Administrator

   What device and what OS version? Also check the OpenAL error code when the sounds stop working.

   You could be coming up against some OpenAL limitation, it sounds very similar to the glitches that occur in the simulator when you combine OpenAL with AVAudioPlayer. There is probably little I can do, if it was me I would try changing the sample rate for the problematic sound, definitely try 44.1kHz if you aren't using that already.

   To be honest, I've pushed CocosDenshion much harder than what you are describing and I've never had an issue with sounds dropping out except on the simulator.

   Posted 2 years ago #
3. 

   argv0
   Member

   The device/simulator difference does seem to make an effect, we just ran a test on the device and it worked fine. But we'd like to run a couple more test runs first, just to make sure we didn't do something very odd.

   But I'll still check the openal error results on the simulator and see what pops up.

   Thanks for the help.

   Posted 2 years ago #
4. 

   Steve Oldmeadow
   Administrator

   My advice is don't even try to get sound working properly in the simulator. It is very broken and I've given up supporting it in CocosDenshion.

   Posted 2 years ago #
5. 

   Wayne
   Member

   Sorry for digging up an old thread, but I ran into the same issue as this and couldn't find a solution here. I found out what breaks the effects from sounding in my game, so I thought I'd post in case it helps someone else.

   In my game, I have background music playing most of the time, and also effects when actions are taken. These work just fine except the odd thing that would happen is that in one scene where I have the background music paused, if I repeatedly hit a button that plays an effect , the effect sound would eventually stop playing at all. Then, when I exit the scene and into a new scene where background music is un-paused, the effect sounds that wouldn't play ( i.e. got accumulated I guess ) would then play in rapid succession in the new scene.

   Once I changed the scene so that it doesn't pause the background music, then the effects work OK. I use pause background music instead of stop background music because I had other odd issues when I used stop.

   I'm using the SimpleAudioEngine that came with Cocos2d version 0.99.0 .

   Hope that helps,
   Wayne

   Posted 1 year ago #
6. 

   Steve Oldmeadow
   Administrator

   @Wayne - are you talking about the simulator?

   Posted 1 year ago #
7. 

   CJ
   Moderator

   @Wayne I have the same issue, but only in the simulator, so I just ignored it.

   Posted 1 year ago #
8. 

   Wayne
   Member

   Thanks Steve and CJ,

   Sorry, I should have been more clear. I get the issue in the simulator consistently. On the device I haven't seen the issue, no matter how fast I hit the button. I wasn't sure if this could be an issue on other iPod/iPhone generations, so that's why I considered it an issue and tried to work around it, even though it works OK on my Gen1 iPhone , Gen1 iPod Touch, and Gen2 iPod Touch.

   Thanks,
   Wayne

   Posted 1 year ago #
9. 

   Steve Oldmeadow
   Administrator

   As I have said, many, many times audio support in the simulator is broken. It uses a totally different implementation to devices so there is no reason to suspect a simulator problem will occur on devices. I think I can safely say CocosDenshion has had 1million+ installs being used in games like Stick Wars and Zombie Smash and there has never been a report of these simulator issues occurring on devices.

   Posted 1 year ago #
10. 

    DanieL
    Member

    Sorry for digging up an old thread, but I ran into the same issue as this on the DEVICE and not in simulator. All my sounds will stopping after a certain time. My game can play many sounds effects at the same time. Can anyone help me? someone has been there?

    Posted 8 months ago #
11. 

    Steve Oldmeadow
    Administrator

    @DanieL - obviously it is not a common problem or there would be plenty of posts. Without more details there is little I can do to help, e.g cocos2d version, devices and firmware you tested on, console log from a level 2 debug build, source code etc.

    Posted 8 months ago #
12. 

    DanieL
    Member

    @Steve Oldmeadow, my problem was solved by removing "sound1 = [[[SimpleAudioEngine sharedEngine] soundSourceForFile:kSound1] retain];" from the init, because it would happen everytime my scene was called and after a while the sound would disappear on any device. I'm using 1.0RC2 version of cocos2d.

    Thank you for your attention.

    Posted 8 months ago #
13. 

    Steve Oldmeadow
    Administrator

    @DanieL - if you retained the CDSoundSource object in the init the you should have released it in the dealloc. There is a limit of 32 sound sources and each CDSoundSource object locks one sound source until it is released.

    Posted 8 months ago #
14. 

    DanieL
    Member

    @Steve-Oldmeadow, I was calling the release on "OnExit" :

    [sound1 release];
    sound1 = nil;

    Posted 8 months ago #

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