AVAudioPlayer sometimes starts skipping -- looping the last 1/4 second of the sound

[99miles]

Hello-
I'm using AVAudioPlayer to play sounds (SDK 2.2.1). Below if the code I'm using that's in a method that is called when I touch the screen. I stop any sounds that's already playing to play a new one if the touch occurs while another sounds is already playing.

The problem is that every 3-5 times that I start a sound, the sound completes and then starts looping the last little bit of the sound. It sounds like a cd skipping. I've spent 3 hours trying different things, and Googling brings up nothing. Any ideas? Thanks in advance!


int soundNum = arc4random() % [soundsArray count];
AVAudioPlayer *sound = [soundsArray objectAtIndex:soundNum];

[currentSound stop];
currentSound = nil;

currentSound = sound;
[currentSound setCurrentTime:0.0];
[currentSound play];

[yjchun]

I'm having the same problem.
iPod touch, SDK 2.2.1. Exactly same problem.
I used mp3 sample files at first time and it started skipping (looping end of the sound)
occasionally. maybe once out of a dozen of times. and then converted all media to aac/caf format using afconvert. This time the problem happens once in twice. Code is fairly simple and straightforward, no much room for error.
It loads audio file one at a time and play it. when it is finished (or error occurs), play next audio file.

Please let me know if a solution is found.
Thanks

[99miles]

The problem went away for me when I used wav files instead of caf. Really irritating. Good luck!

[yjchun]

Thank you for the info.
In my case, using wav is not really an option. size of audio files are already too much.

I tried to convert original wave to mp3 and caf and m4a using aac codec. using caf, almost 100% of the looping problem but with m4a the chances were a little lower. Tried to change channels and bitrates but no difference.

So media container format matters. That's all I figured out so far..sigh.
SDK 2.2 is causing me too much trouble.
I will update when i find anything new.