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POxcode: How to save audio file after recording audio using AVFoundation
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copied!<p>I browsed through all kinds of post related to this topic but the answers just do not really help. I used <a href="http://www.techotopia.com/index.php/Recording_Audio_on_an_iPhone_with_AVAudioRecorder_%28iOS_4%29" rel="nofollow noreferrer">this</a> tutorial to implement recording of audio files and playback. What seems to be missing is how to save the record <strong>permanently</strong>. When I exit my app the sound file is there but nothing is in it. I don't even know if it is saving the rocerd or just creating the file. Here is a code sample:</p> <pre><code>NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *docsDir = [dirPaths objectAtIndex:0]; NSString *soundFilePath = [docsDir stringByAppendingPathComponent:@"tmpSound.caf"]; tempRecFile = [NSURL fileURLWithPath:soundFilePath]; NSDictionary *recSettings = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey, [NSNumber numberWithInt:16], AVEncoderBitRateKey, [NSNumber numberWithInt: 2], AVNumberOfChannelsKey, [NSNumber numberWithFloat:44100.0], AVSampleRateKey, nil]; recorder = [[AVAudioRecorder alloc] initWithURL:tempRecFile settings:recSettings error:nil]; [recorder setDelegate:self]; [recorder prepareToRecord]; [recorder record]; </code></pre> <p>I saw a possible solution to this problem <a href="https://stackoverflow.com/a/6855160/1050722">here</a> but since I'm new to iOS I do not really get it or it is just does not working for me.</p> <p>Please help and provide a code example. I read the documentation about AVFoundation and other classes but with no positive results. </p> <p>SOS :)</p> <p><strong>UPDATE</strong> This is my recording method:</p> <pre><code>-(IBAction)recording{ //***** METHOD for recording if(isNotRecording){ isNotRecording = NO; [recButton setTitle:@"Stop" forState:UIControlStateNormal]; recStateLabel.text = @"Recording"; [recorder setDelegate:self]; [recorder prepareToRecord]; [recorder record]; } else{ isNotRecording = YES; [recButton setTitle:@"Rec Begin" forState:UIControlStateNormal]; playButton.hidden = NO; recStateLabel.text = @"Not recording"; [recorder stop]; } } </code></pre> <p>This is my viewDidLoad:</p> <pre><code>- (void)viewDidLoad { //record sound test code - start isNotRecording = YES; //playButton.hidden = YES; recStateLabel.text = @"Not recording"; AVAudioSession *audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil]; [audioSession setActive:YES error:nil]; //record sound test code - END [super viewDidLoad]; // Do any additional setup after loading the view from its nib. // code for generating the sound file that is to be saved NSArray *dirPaths; NSString *docsDir; dirPaths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask, YES); docsDir = [dirPaths objectAtIndex:0]; NSString *soundFilePath = [docsDir stringByAppendingPathComponent:@"sound.caf"]; NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath]; NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey, [NSNumber numberWithInt:16], AVEncoderBitRateKey, [NSNumber numberWithInt: 2], AVNumberOfChannelsKey, [NSNumber numberWithFloat:44100.0], AVSampleRateKey, nil]; NSError *error = nil; recorder = [[AVAudioRecorder alloc] initWithURL:soundFileURL settings:recordSettings error:&error]; if (error) { NSLog(@"error: %@", [error localizedDescription]); } else { [recorder prepareToRecord]; } } </code></pre> <p>This is my playBack method:</p> <pre><code>-(IBAction)playback{ //AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:temporaryRecFile error:nil]; NSError *error; // setting the uri of the formed created file NSArray *dirPaths; NSString *docsDir; dirPaths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask, YES); docsDir = [dirPaths objectAtIndex:0]; NSString *soundFilePath = [docsDir stringByAppendingPathComponent:@"sound.caf"]; NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath]; AVAudioPlayer *player = [[AVAudioPlayer alloc]initWithContentsOfURL:soundFileURL error:&error]; [player setNumberOfLoops:0]; [player prepareToPlay]; [player setVolume:1]; [player play]; NSLog(@"URL je: %@", soundFileURL); //method 2 if (error) NSLog(@"Error: %@", [error localizedDescription]); else { [player play]; if(player.isPlaying==YES) { NSLog(@"It's playing"); } } </code></pre> <p>}</p> <p>I hopše this makes it clear what I do. Any suggestions where I might be wrong?</p>

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