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In an app I'm currently developing, I've more or less hit a brick wall. In the application you can enter a view which lists all locally saved audio files in a standard table view. From here you can click on them to play them, or hit a record button below to make a new recording, which will afterwards automatically get saved to the apps sandbox. Now all of this actually works perfectly fine, most of the time. I can sit and make recordings and play them back. I can sit and test this on and on for around 45 with no problems whatsoever. Then suddenly at random times I will hit a very odd problem. The problem is that the recorder all of the sudden starts to save nothing but corrupt files which can't be played back and are exactly 4096 bytes in size, no matter how long you recorder for. I use the AVAudioRecorder in a totally standard fashion, setting it up like this: // Specific settings for the audio recording NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey, [NSNumber numberWithInt:8], AVEncoderBitRateKey, [NSNumber numberWithInt: 2], AVNumberOfChannelsKey, [NSNumber numberWithFloat:22000.0], AVSampleRateKey, nil]; NSError *error = nil; audioRecorder = [[AVAudioRecorder alloc] initWithURL:contentURL settings:recordSettings error:&error]; audioRecorder.delegate = self; I start the recording like this: if (!isRecording) { isRecording = YES; [audioRecorder record]; // Start the timer recordTiming = [NSDate date]; timeCheck = [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(timeCheck) userInfo:nil repeats:YES]; } And then stopping it with this: if (isRecording) { [audioRecorder stop]; // Stop the timer [timeCheck invalidate]

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