Combine 2 Audio Files into 1

[iphonig]

Hey all,
So in an app I'm making I record a sound, and I have a sound built into the app. Once I record my sound, I would like to have the app merge, or compile the recorded sound and the sound already built into the app into 1 audio file which would be played back.

I have tried this

 NSString *path1 = [[NSBundle mainBundle] pathForResource:@"sound1" ofType:@"aif"];//piggy sound
        //this gets the audio path from the recorded sound 
        NSArray *dirPaths;
        NSString *docsDir;
        
        dirPaths = NSSearchPathForDirectoriesInDomains(
                                                       NSDocumentDirectory, NSUserDomainMask, YES);
        docsDir = [dirPaths objectAtIndex:0];
        NSString *soundFilePathRecorded = [docsDir
                                   stringByAppendingPathComponent:@"recorded.aif"];
        //
        NSURL *soundFilePathURL = [[NSURL alloc] initFileURLWithPath:path1];
        NSData *sound1Data = [[NSData alloc] initWithContentsOfURL: soundFilePathURL];
        NSURL *soundFilePathURL2 = [[NSURL alloc] initFileURLWithPath:soundFilePathRecorded];
        NSData *sound2Data = [[NSData alloc] initWithContentsOfURL: soundFilePathURL2];
        
        NSMutableData *sounds = [NSMutableData alloc];
        [sounds appendData:sound1Data];
        [sounds appendData:sound2Data];
        
        [[NSFileManager defaultManager] createFileAtPath:[NSTemporaryDirectory() stringByAppendingPathComponent:@"compiledsound.aif"] contents:sounds attributes:nil];  
        
        
        NSString *compiledPath = [docsDir
                          stringByAppendingPathComponent:@"compiledsound.aif"];
        theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL: [NSURL fileURLWithPath:compiledPath] error:NULL];
        theAudio.delegate = self;
        [theAudio play];

No audio plays when I try this. When I try to play the files individually however, they do.
Any ideas?

-iPhonig

[d4devil]

I am not an expert with media in iphone but I did a little work a couple of months ago in audio recording.

First of all if you want to play both files at the same time then you should use AVPlayer (not AVAudioPlayer). AVPlayer work with AVPlayerItem. You can run multiple AVPlayerItems at the same time. See apple documentation for further information.

As you want to merge the file into 1 single file. You should look at AVAssetExportSession.

I hope this will give you direction for what you are looking for. Let me know if this helps u in any case.

Cheers.

[chucknorris]

I have the same problem as you?
Any ideas?
or Sample code??