CocosDenshion SimpleAudioEngine with only background music in OS 2.2.1

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CocosDenshion SimpleAudioEngine with only background music in OS 2.2.1

(7 posts) (2 voices)

Started 2 years ago by makzan
Latest reply from makzan

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makzan
Member

I face a problem now with SimpleAudioEngine's playEffect.
I build my binary target OS 2.2.1 device.
Both background music and effect music works perfectly in iPod Touch 1st Gen (OS 3.0) and iPhone 3GS (OS 3.1).

However, the same binary failed the effect in iPod Touch 2nd Gen (OS 2.2.1 JB) (Sorry for a JB version because it is a second hand device and not JB by me)

I also tested my code with OS 2.2.1 simulator and it works well in Macbook Pro.

The OpenAL / AVFoundation / AudioToolbox framework is import from /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS2.2.1.sdk/System/Library/Frameworks.

Please if any one know what may cause this problem? Is the frameworks version problem? or a problem of the OS 2.2.1 device?
Thank you very much for you help.

I've search and read following post before posting this thread. And it seems that I'm not facing the same problem with the author of the following post.
http://www.cocos2d-iphone.org/forum/topic/433#post-2524

Thank you again for your help.

Posted 2 years ago #
Steve Oldmeadow
Administrator

Please follow the troubleshooting steps outlined in the Wiki. i.e. try running the CocosDenshion sample on that device, then oalTouch. Without that information there isn't much I can say, CocosDenshion works fine on other 2.2.1 devices.

Posted 2 years ago #
makzan
Member

Thank you very much for your quick reply.

I tested the CocosDenshion sample and oalTouch sample. Both works perfectly on my 2.2.1 device.

Then it will be my environments problem. It is strange that the problem only occurs when using the 2.2.1 iPod Touch 2nd Gen. My other testing devices work very well.

Is there any environments setting in the project that I may miss in order to play the effect?

Thank you very much.

Posted 2 years ago #
Steve Oldmeadow
Administrator

What format are the sounds you are trying to play? 3.x will load more sound formats than 2.2.1.

Perform a debug build and read everything in the console, also check the functioning value of the sound engine, you will need to add some code to SimpleAudioEngine to do that.

Posted 2 years ago #
makzan
Member

I used mp3 format.

and the debug trace message from the 2.2.1 is
2009-08-02 15:21:02.201 Hiniyana[1197:20b] Denshion: Checking for other audio
2009-08-02 15:21:02.205 Hiniyana[1197:20b] Denshion: Other audio is not playing audio will be exclusive
2009-08-02 15:21:02.233 Hiniyana[1197:20b] Denshion: channel def 0 0 30 0
2009-08-02 15:21:02.582 Hiniyana[1197:20b] Denshion: Loading openAL buffer 0 hitnull.mp3
2009-08-02 15:21:02.774 Hiniyana[1197:20b] MyGetOpenALAudioData: ExtAudioFileSetProperty(kExtAudioFileProperty_ClientDataFormat) FAILED, Error = 1885696621
2009-08-02 15:21:02.781 Hiniyana[1197:20b] Denshion: size 806128768 frequency 805301400 format 2289680 0
2009-08-02 15:21:02.791 Hiniyana[1197:20b] Denshion: error loading sound: 0

However, after I converted the mp3 format to caf format. It works well now.

Thank you for your help. the CAF format works now.

Posted 2 years ago #
Steve Oldmeadow
Administrator

mp3 will load on 3.x but not 2.x as you found out. My recommendation is to use wave or IMA4 compressed. The wiki contains details of how to create IMA4. When you say CAF file, be aware that CAF is just a wrapper around some other format so a CAF could be little endian PCM like a wave file or IMA4 (or many other formats).

Posted 2 years ago #
makzan
Member

Really thanks for your big help. I know very little about the sound format.

my CAF file is convert as IMA4.

thanks :)

Posted 2 years ago #

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