Voice Recoding

Voice Recoding

1) ADD Framework :

- AVFoundation.Framework

2) Put Three Button in Storyboard :

3) Write Coding in ViewController.h :

#import <UIKit/UIKit.h>

#import <AVFoundation/AVFoundation.h>

@interface ViewController : UIViewController<AVAudioPlayerDelegate,AVAudioRecorderDelegate>

@property(strong,nonatomic)IBOutlet UIButton *recordpausebutton;

@property(strong,nonatomic)IBOutlet UIButton *stopbutton;

@property(strong,nonatomic)IBOutlet UIButton *playbutton;

-(IBAction)recordpausebutton:(id)sender;

-(IBAction)stopbutton:(id)sender;

-(IBAction)playbutton:(id)sender;

@end

4) Write Coding in ViewController.m :

#import "ViewController.h"

@interface ViewController ()

{

    AVAudioRecorder *recorder;

    AVAudioPlayer *player;

}

@end

@implementation ViewController

@synthesize stopbutton,playbutton,recordpausebutton;

- (void)viewDidLoad

{

    [super viewDidLoad];

    

    // Disable Stop/Play button when application launches

    [stopbutton setEnabled:NO];

    [playbutton setEnabled:NO];

    

    // Set the audio file

    NSArray *pathComponents = [NSArray arrayWithObjects:

                               [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],

                               @"MyAudioMemo.m4a",

                               nil];

    NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];

    

    // Setup audio session

    AVAudioSession *session = [AVAudioSession sharedInstance];

    [session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];

    

    // Define the recorder setting

    NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];

    

    [recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];

    [recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];

    [recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];

    

    // Initiate and prepare the recorder

    recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];

    recorder.delegate = self;

    recorder.meteringEnabled = YES;

    [recorder prepareToRecord];

    

    

}

-(IBAction)recordpausebutton:(id)sender

{

    // Stop the audio player before recording

    if (player.playing) {

        [player stop];

    }

    

    if (!recorder.recording) {

        AVAudioSession *session = [AVAudioSession sharedInstance];

        [session setActive:YES error:nil];

        

        // Start recording

        [recorder record];

        [recordpausebutton setTitle:@"Pause" forState:UIControlStateNormal];

        

    } else {

        

        // Pause recording

        [recorder pause];

        [recordpausebutton setTitle:@"Record" forState:UIControlStateNormal];

    }

    

    [stopbutton setEnabled:YES];

    [playbutton setEnabled:NO];

}

-(IBAction)stopbutton:(id)sender

{

    [recorder stop];

    

    AVAudioSession *audioSession = [AVAudioSession sharedInstance];

    [audioSession setActive:NO error:nil];

}

-(IBAction)playbutton:(id)sender

{

    if (!recorder.recording){

        player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];

        [player setDelegate:self];

        [player play];

    }

}

- (void) audioRecorderDidFinishRecording:(AVAudioRecorder *)avrecorder successfully:(BOOL)flag{

    [recordpausebutton setTitle:@"Record" forState:UIControlStateNormal];

    

    [stopbutton setEnabled:NO];

    [playbutton setEnabled:YES];

}

- (void) audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Done"

                                                    message: @"Finish playing the recording!"

                                                   delegate: nil

                                          cancelButtonTitle:@"OK"

                                          otherButtonTitles:nil];

    [alert show];

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end