Recorder/Player issue: simulator is fine, device does not work

[smerd11]

Hi all,
This is issue has been frustrating me for about 2 hours now. I can't figure it out, likely because I'm a newbie. I'm trying to just simply record and playback a sound file. In the simulator, the following works just fine:

recordedFile = [NSURL fileURLWithPath:[NSString stringWithFormat: @"%@/recordedSound.caf",[[NSBundle mainBundle] resourcePath]]];
...
recorder = [[ AVAudioRecorder alloc] initWithURL:recordedSound settings:recordSetting error:&error];

I'm able to record and playback sounds with the appropriate buttons in the application when in simulator. But when I try it on the device, it doesn't seem to actually record anything, and it does not play back. I've figured out a way to make it work on the device, by replacing the above first line with this:

recordedSound = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent: [NSString stringWithFormat: @"recordedSound.%@", @"caf"]]];

This tells me that it's not an issue with the recorder, but just with where I'm creating the file. But I don't want the file in a temporary directory. I want it to be located at "Application.app/recordedSound.caf." What am I missing here? I can feel that there's an easy fix, but I can't figure out what that is.
Thanks so much for the help!!

[JDave]

The iPhone is cAsEsensitive to file names. The simulator is not. I would verify filenames and paths with respect to cAsE.

[smerd11]

Originally Posted by JDave

The iPhone is cAsEsensitive to file names. The simulator is not. I would verify filenames and paths with respect to cAsE.

Hmm, thanks for this--that was news to me, but I looked though and can't identify any typos with respect to upper/lowercase.

I was advised that I need to have an AVAudioSession, which I have added, but the problem remains the same: it plays in simulator but not on the device. Here's what I have currently:

//Audio Session
AVAudioSession * audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error: &error];
[audioSession setActive:YES error: &error];

//Recording settings
NSMutableDictionary * recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatAppleIMA4] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey]; 
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];

//Create NSURL for recorder
recordedFile = [NSURL fileURLWithPath:[NSString stringWithFormat: @"%@/recordedSound.caf",[[NSBundle mainBundle] resourcePath]]];

//Set up the recorder to use the NSURL and record to file

recorder = [[ AVAudioRecorder alloc] initWithURL:recordedFile settings:recordSetting error:&error];
[recorder setDelegate:self]; //I added this in recently, though I don't understand why it's necessary
[recorder prepareToRecord];
[recorder record];

And the play button is pretty simply (leaving no room for lower/uppercase mistakes):

AVAudioPlayer * avPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:recordedFile error:&error];
[avPlayer prepareToPlay];
[avPlayer play];

[smerd11]

I've messed with this for a few more hours, and still no luck. The bizarre thing is that it works perfectly fine if I create temp directory. In other words, this works flawlessly both on the device and in simulator:

recordedFile = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent: [NSString stringWithFormat: @"recordedSound.%@", @"caf"]]];

But this ONLY works in the simulator:

recordedFile = [NSURL fileURLWithPath:[NSString stringWithFormat: @"%@recordedSound.caf",[[NSBundle mainBundle] resourcePath]]];

Why is this the case?

[Frollo]

I assume you figured out that you can't create files in the NSBundle, only in your "Documents" directory.