AVAudioRecorder ile iPhone'a nasıl ses kaydedebilirim?

Şimdi iPhone 3.0 sdk herkese açık olduğundan, 3.0 sdk ile oynamış olanlarınız için bu soruyu sorabilirim. Uygulamamda ses kaydetmek istiyorum, ancak örnek SpeakHere'ın gösterdiği gibi daha eski kayıt yöntemini değil AVAudioRecorder'ı kullanmak istiyorum. İPhone Dev Center'da bunun en iyi nasıl yapılacağına ve sadece sınıflara atıfta bulunacağına dair bir örnek yok. Ben iPhone geliştirmede bir yeniyim, bu yüzden başlamak için basit bir örnek arıyorum. Şimdiden teşekkürler.

Aslında hiç örnek yok. İşte benim çalışma kodum. Kayıt, gezinme çubuğundaki bir düğmeye basarak kullanıcı tarafından tetiklenir. Kayıtta cd kalitesi (44100 örnek), stereo (2 kanal) doğrusal pcm kullanılır. Dikkat: Farklı bir format, özellikle kodlanmış bir format kullanmak istiyorsanız, AVAudioRecorder ayarlarının nasıl yapıldığını tam olarak anladığınızdan emin olun (ses türleri belgelerini dikkatlice okuyun), aksi takdirde asla doğru şekilde başlatamazsınız. Bir şey daha. Kodda, ölçüm verilerinin nasıl işleneceğini göstermiyorum, ancak kolayca anlayabilirsiniz. Son olarak, AVAudioRecorder yönteminin deleteRecording komutunun bu yazı itibariyle uygulamanızın çökmesine neden olduğunu unutmayın. Bu nedenle kaydedilen dosyayı Dosya Yöneticisi aracılığıyla kaldırıyorum. Kayıt tamamlandığında, kaydedilen sesi KVC kullanarak o anda düzenlenen nesneye NSData olarak kaydederim.

#define DOCUMENTS_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]


- (void) startRecording{

UIBarButtonItem *stopButton = [[UIBarButtonItem alloc] initWithTitle:@"Stop" style:UIBarButtonItemStyleBordered  target:self action:@selector(stopRecording)];
self.navigationItem.rightBarButtonItem = stopButton;
[stopButton release];

AVAudioSession *audioSession = [AVAudioSession sharedInstance];
NSError *err = nil;
[audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
if(err){
    NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
    return;
}
[audioSession setActive:YES error:&err];
err = nil;
if(err){
    NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
    return;
}

recordSetting = [[NSMutableDictionary alloc] init];

[recordSetting setValue :[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey]; 
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];

[recordSetting setValue :[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];



// Create a new dated file
NSDate *now = [NSDate dateWithTimeIntervalSinceNow:0];
NSString *caldate = [now description];
recorderFilePath = [[NSString stringWithFormat:@"%@/%@.caf", DOCUMENTS_FOLDER, caldate] retain];

NSURL *url = [NSURL fileURLWithPath:recorderFilePath];
err = nil;
recorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSetting error:&err];
if(!recorder){
    NSLog(@"recorder: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
    UIAlertView *alert =
    [[UIAlertView alloc] initWithTitle: @"Warning"
                               message: [err localizedDescription]
                              delegate: nil
                     cancelButtonTitle:@"OK"
                     otherButtonTitles:nil];
    [alert show];
    [alert release];
    return;
}

//prepare to record
[recorder setDelegate:self];
[recorder prepareToRecord];
recorder.meteringEnabled = YES;

BOOL audioHWAvailable = audioSession.inputIsAvailable;
if (! audioHWAvailable) {
    UIAlertView *cantRecordAlert =
    [[UIAlertView alloc] initWithTitle: @"Warning"
                               message: @"Audio input hardware not available"
                              delegate: nil
                     cancelButtonTitle:@"OK"
                     otherButtonTitles:nil];
    [cantRecordAlert show];
    [cantRecordAlert release]; 
    return;
}

// start recording
[recorder recordForDuration:(NSTimeInterval) 10];

}

- (void) stopRecording{

[recorder stop];

NSURL *url = [NSURL fileURLWithPath: recorderFilePath];
NSError *err = nil;
NSData *audioData = [NSData dataWithContentsOfFile:[url path] options: 0 error:&err];
if(!audioData)
    NSLog(@"audio data: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
[editedObject setValue:[NSData dataWithContentsOfURL:url] forKey:editedFieldKey];   

//[recorder deleteRecording];


NSFileManager *fm = [NSFileManager defaultManager];

err = nil;
[fm removeItemAtPath:[url path] error:&err];
if(err)
    NSLog(@"File Manager: %@ %d %@", [err domain], [err code], [[err userInfo] description]);



UIBarButtonItem *startButton = [[UIBarButtonItem alloc] initWithTitle:@"Record" style:UIBarButtonItemStyleBordered  target:self action:@selector(startRecording)];
self.navigationItem.rightBarButtonItem = startButton;
[startButton release];

}

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

NSLog (@"audioRecorderDidFinishRecording:successfully:");
// your actions here

}

Bu cevaplanmış bir soru (ve eski bir tür) olmasına rağmen, iyi çalışma kodunu (kutudan çıkarılmış) çalma ve kayıt örneği bulmayı zor bulan diğer kişiler için tam çalışma kodumu göndermeye karar verdim - kodlanmış, pcm, hoparlör üzerinden çalma , buraya dosyaya yazın:

AudioPlayerViewController.h:

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface AudioPlayerViewController : UIViewController {
AVAudioPlayer *audioPlayer;
AVAudioRecorder *audioRecorder;
int recordEncoding;
enum
{
    ENC_AAC = 1,
    ENC_ALAC = 2,
    ENC_IMA4 = 3,
    ENC_ILBC = 4,
    ENC_ULAW = 5,
    ENC_PCM = 6,
} encodingTypes;
}

-(IBAction) startRecording;
-(IBAction) stopRecording;
-(IBAction) playRecording;
-(IBAction) stopPlaying;

@end

AudioPlayerViewController.m:

#import "AudioPlayerViewController.h"

@implementation AudioPlayerViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    recordEncoding = ENC_AAC;
}

-(IBAction) startRecording
{
NSLog(@"startRecording");
[audioRecorder release];
audioRecorder = nil;

// Init audio with record capability
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryRecord error:nil];

NSMutableDictionary *recordSettings = [[NSMutableDictionary alloc] initWithCapacity:10];
if(recordEncoding == ENC_PCM)
{
    [recordSettings setObject:[NSNumber numberWithInt: kAudioFormatLinearPCM] forKey: AVFormatIDKey];
    [recordSettings setObject:[NSNumber numberWithFloat:44100.0] forKey: AVSampleRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
    [recordSettings setObject:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recordSettings setObject:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
    [recordSettings setObject:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];   
}
else
{
    NSNumber *formatObject;

    switch (recordEncoding) {
        case (ENC_AAC): 
            formatObject = [NSNumber numberWithInt: kAudioFormatMPEG4AAC];
            break;
        case (ENC_ALAC):
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleLossless];
            break;
        case (ENC_IMA4):
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleIMA4];
            break;
        case (ENC_ILBC):
            formatObject = [NSNumber numberWithInt: kAudioFormatiLBC];
            break;
        case (ENC_ULAW):
            formatObject = [NSNumber numberWithInt: kAudioFormatULaw];
            break;
        default:
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleIMA4];
    }

    [recordSettings setObject:formatObject forKey: AVFormatIDKey];
    [recordSettings setObject:[NSNumber numberWithFloat:44100.0] forKey: AVSampleRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
    [recordSettings setObject:[NSNumber numberWithInt:12800] forKey:AVEncoderBitRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recordSettings setObject:[NSNumber numberWithInt: AVAudioQualityHigh] forKey: AVEncoderAudioQualityKey];
}

NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/recordTest.caf", [[NSBundle mainBundle] resourcePath]]];


NSError *error = nil;
audioRecorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSettings error:&error];

if ([audioRecorder prepareToRecord] == YES){
    [audioRecorder record];
}else {
    int errorCode = CFSwapInt32HostToBig ([error code]); 
    NSLog(@"Error: %@ [%4.4s])" , [error localizedDescription], (char*)&errorCode); 

}
NSLog(@"recording");
}

-(IBAction) stopRecording
{
NSLog(@"stopRecording");
[audioRecorder stop];
NSLog(@"stopped");
}

-(IBAction) playRecording
{
NSLog(@"playRecording");
// Init audio with playback capability
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];

NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/recordTest.caf", [[NSBundle mainBundle] resourcePath]]];
NSError *error;
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer.numberOfLoops = 0;
[audioPlayer play];
NSLog(@"playing");
}

-(IBAction) stopPlaying
{
NSLog(@"stopPlaying");
[audioPlayer stop];
NSLog(@"stopped");
}

- (void)dealloc
{
[audioPlayer release];
[audioRecorder release];
[super dealloc];
}

@end

Umarım bu bazılarınıza yardımcı olur.

Örnek bir proje yükledim. Bir göz atabilirsiniz.

Ses kaydedici

Gerçekten yararlı. Sahip olduğum tek sorun kayıttan sonra oluşturulan ses dosyasının boyutu oldu. Ayarlarda bazı değişiklikler yaptım bu yüzden dosya boyutunu azaltmak gerekiyordu.

NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue :[NSNumber numberWithInt:kAudioFormatAppleIMA4] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:16000.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 1] forKey:AVNumberOfChannelsKey];

Dosya boyutu 360 kb'den 25 kb'ye düşürüldü (2 saniye kayıt).

Son 2 saattir çalışmak için bu kodu almaya çalışıyorum ve simülatörde hiçbir hata göstermese de, cihazda bir tane vardı.

En azından benim durumumda hatanın kullanılan dizinden (paket) geldiği ortaya çıkıyor:

NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/recordTest.caf", [[NSBundle mainBundle] resourcePath]]];

Yazılabilir değildi ya da bunun gibi bir şey ... preparToRecord'un başarısız olması dışında bir hata yoktu ...

Bu nedenle şu şekilde değiştirdim:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *recDir = [paths objectAtIndex:0];
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/recordTest.caf", recDir]]

Şimdi bir Çekicilik gibi çalışıyor.

Umarım bu başkalarına yardımcı olur.

Büyük sayesinde @Massimo Cafaro ve Shaybc I görevleri aşağıda elde edebildi

iOS 8'de:

Ses kaydetme ve kaydetme

Kayıtlı Kaydı Oynat

1.Projenize "AVFoundation.framework" ekleyin

.h dosyasında

2. 'AVFoundation / AVFoundation.h' içe aktarma ifadesinin altına ekleyin.

3. "AVAudioRecorderDelegate" tanımını yapın

4.Kayıt, Oynat düğmeleri ve bunların eylem yöntemleriyle bir düzen oluşturun

5. Tanımlama Kaydedici ve Oynatıcı vb.

İşte size yardımcı olabilecek örnek kodun tamamı.

ViewController.h

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface ViewController : UIViewController <AVAudioRecorderDelegate>

@property(nonatomic,strong) AVAudioRecorder *recorder;
@property(nonatomic,strong) NSMutableDictionary *recorderSettings;
@property(nonatomic,strong) NSString *recorderFilePath;
@property(nonatomic,strong) AVAudioPlayer *audioPlayer;
@property(nonatomic,strong) NSString *audioFileName;

- (IBAction)startRecording:(id)sender;
- (IBAction)stopRecording:(id)sender;

- (IBAction)startPlaying:(id)sender;
- (IBAction)stopPlaying:(id)sender;

@end

Sonra işi

ViewController.m

#import "ViewController.h"

#define DOCUMENTS_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]

@interface ViewController ()
@end

@implementation ViewController

@synthesize recorder,recorderSettings,recorderFilePath;
@synthesize audioPlayer,audioFileName;


#pragma mark - View Controller Life cycle methods
- (void)viewDidLoad
{
    [super viewDidLoad];
}
- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}


#pragma mark - Audio Recording
- (IBAction)startRecording:(id)sender
{
    AVAudioSession *audioSession = [AVAudioSession sharedInstance];
    NSError *err = nil;
    [audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
    if(err)
    {
        NSLog(@"audioSession: %@ %ld %@", [err domain], (long)[err code], [[err userInfo] description]);
        return;
    }
    [audioSession setActive:YES error:&err];
    err = nil;
    if(err)
    {
        NSLog(@"audioSession: %@ %ld %@", [err domain], (long)[err code], [[err userInfo] description]);
        return;
    }
    
    recorderSettings = [[NSMutableDictionary alloc] init];
    [recorderSettings setValue :[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
    [recorderSettings setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
    [recorderSettings setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
    [recorderSettings setValue :[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recorderSettings setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
    [recorderSettings setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
    
    // Create a new audio file
    audioFileName = @"recordingTestFile";
    recorderFilePath = [NSString stringWithFormat:@"%@/%@.caf", DOCUMENTS_FOLDER, audioFileName] ;
    
    NSURL *url = [NSURL fileURLWithPath:recorderFilePath];
    err = nil;
    recorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recorderSettings error:&err];
    if(!recorder){
        NSLog(@"recorder: %@ %ld %@", [err domain], (long)[err code], [[err userInfo] description]);
        UIAlertView *alert =
        [[UIAlertView alloc] initWithTitle: @"Warning" message: [err localizedDescription] delegate: nil
                         cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alert show];
        return;
    }
    
    //prepare to record
    [recorder setDelegate:self];
    [recorder prepareToRecord];
    recorder.meteringEnabled = YES;
    
    BOOL audioHWAvailable = audioSession.inputIsAvailable;
    if (! audioHWAvailable) {
        UIAlertView *cantRecordAlert =
        [[UIAlertView alloc] initWithTitle: @"Warning"message: @"Audio input hardware not available"
                                  delegate: nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [cantRecordAlert show];
        return;
    }
    
    // start recording
    [recorder recordForDuration:(NSTimeInterval) 60];//Maximum recording time : 60 seconds default
    NSLog(@"Recroding Started");
}

- (IBAction)stopRecording:(id)sender
{
    [recorder stop];
    NSLog(@"Recording Stopped");
}

- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *) aRecorder successfully:(BOOL)flag
{
    NSLog (@"audioRecorderDidFinishRecording:successfully:");
}


#pragma mark - Audio Playing
- (IBAction)startPlaying:(id)sender
{
    NSLog(@"playRecording");
    
    AVAudioSession *audioSession = [AVAudioSession sharedInstance];
    [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
    
     NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/%@.caf", DOCUMENTS_FOLDER, audioFileName]];
    NSError *error;
    audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
    audioPlayer.numberOfLoops = 0;
    [audioPlayer play];
    NSLog(@"playing");
}
- (IBAction)stopPlaying:(id)sender
{
    [audioPlayer stop];
    NSLog(@"stopped");
}

@end

This is from Multimedia programming guide...

- (IBAction) recordOrStop: (id) sender {
if (recording) {
    [soundRecorder stop];
    recording = NO;
    self.soundRecorder = nil;
    [recordOrStopButton setTitle: @"Record" forState:
     UIControlStateNormal];
    [recordOrStopButton setTitle: @"Record" forState:
     UIControlStateHighlighted];
    [[AVAudioSession sharedInstance] setActive: NO error:nil];
} 
else {
    [[AVAudioSession sharedInstance]
     setCategory: AVAudioSessionCategoryRecord
     error: nil];
    NSDictionary *recordSettings =
    [[NSDictionary alloc] initWithObjectsAndKeys:[NSNumber numberWithFloat: 44100.0], AVSampleRateKey,
     [NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey,
     [NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
     [NSNumber numberWithInt: AVAudioQualityMax],
     AVEncoderAudioQualityKey,
     nil];
    AVAudioRecorder *newRecorder =
    [[AVAudioRecorder alloc] initWithURL: soundFileURL
                                settings: recordSettings
                                   error: nil];
    [recordSettings release];
    self.soundRecorder = newRecorder;
    [newRecorder release];
    soundRecorder.delegate = self;
    [soundRecorder prepareToRecord];
    [soundRecorder record];
    [recordOrStopButton setTitle: @"Stop" forState: UIControlStateNormal];
    [recordOrStopButton setTitle: @"Stop" forState: UIControlStateHighlighted];
    recording = YES;
}
}

Aşağıdaki linkte AVAudioRecording ile kayıt hakkında yararlı bilgiler bulabilirsiniz. İlk bölüm olan "Sesi Kullanma" daki bu bağlantıda "AVAudioRecorder Sınıfıyla Kayıt Yapma" adlı bir çapa vardır. bu sizi örneğe götürür.

AudioVideo Kavramsal MultimedyaPG

Pekala, cevabım bana doğru yönde yardımcı oldu ve çok minnettarım. Aslında iPhone'a nasıl kayıt yapılacağını anlamama yardımcı oldu, ancak iPhone Referans Kütüphanesinden aldığım bazı yararlı kodları da içereceğimi düşündüm:

AudioandVideoTechnologies

Bu kodu kullandım ve avTouch örneğine oldukça kolay bir şekilde ekledim. Yukarıdaki kod örneği ve referans kitaplığından örnek ile, bu oldukça iyi çalışması için başardı.

ses ayarının altındaki wav formatı için

NSDictionary *audioSetting = [NSDictionary dictionaryWithObjectsAndKeys:
                              [NSNumber numberWithFloat:44100.0],AVSampleRateKey,
                              [NSNumber numberWithInt:2],AVNumberOfChannelsKey,
                              [NSNumber numberWithInt:16],AVLinearPCMBitDepthKey,
                              [NSNumber numberWithInt:kAudioFormatLinearPCM],AVFormatIDKey,
                              [NSNumber numberWithBool:NO], AVLinearPCMIsFloatKey, 
                              [NSNumber numberWithBool:0], AVLinearPCMIsBigEndianKey,
                              [NSNumber numberWithBool:NO], AVLinearPCMIsNonInterleaved,
                              [NSData data], AVChannelLayoutKey, nil];

ref: http://objective-audio.jp/2010/09/avassetreaderavassetwriter.html

BAŞLAT

NSError *sessionError = nil;
[[AVAudioSession sharedInstance] setDelegate:self];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
UInt32 doChangeDefaultRoute = 1;
AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryDefaultToSpeaker, sizeof(doChangeDefaultRoute), &doChangeDefaultRoute);

NSError *error = nil;
NSString *filename = [NSString stringWithFormat:@"%@.caf",FILENAME];
NSString *path = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:filename];
NSURL *soundFileURL = [NSURL fileURLWithPath:path];


NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys:
                                [NSNumber numberWithInt: kAudioFormatMPEG4AAC], AVFormatIDKey,
                                [NSNumber numberWithInt:AVAudioQualityMedium],AVEncoderAudioQualityKey,
                                [NSNumber numberWithInt:AVAudioQualityMedium], AVSampleRateConverterAudioQualityKey,
                                [NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
                                [NSNumber numberWithFloat:22050.0],AVSampleRateKey,
                                nil];

AVAudioRecorder *audioRecorder = [[AVAudioRecorder alloc]
                 initWithURL:soundFileURL
                 settings:recordSettings
                 error:&error];


if (!error && [audioRecorder prepareToRecord])
{
    [audioRecorder record];
}

DUR

[audioRecorder stop];
[audioRecorder release];
audioRecorder = nil;

-(void)viewDidLoad {
 // 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)btnRecordDidClicked:(UIButton *)sender {
        if (player1.playing) {
            [player1 stop];
        }

        if (!recorder.recording) {
            AVAudioSession *session = [AVAudioSession sharedInstance];
            [session setActive:YES error:nil];

            // Start recording
            [recorder record];
            [_recordTapped setTitle:@"Pause" forState:UIControlStateNormal];

        } else {

            // Pause recording
            [recorder pause];
            [_recordTapped setTitle:@"Record" forState:UIControlStateNormal];
        }

        [_stopTapped setEnabled:YES];
        [_playTapped setEnabled:NO];

    }

    - (IBAction)btnPlayDidClicked:(UIButton *)sender {
        if (!recorder.recording){
            player1 = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];
            [player1 setDelegate:self];
            [player1 play];
        }
    }

    - (IBAction)btnStopDidClicked:(UIButton *)sender {
        [recorder stop];
        AVAudioSession *audioSession = [AVAudioSession sharedInstance];
        [audioSession setActive:NO error:nil];
    }

    - (void) audioRecorderDidFinishRecording:(AVAudioRecorder *)avrecorder successfully:(BOOL)flag{
        [_recordTapped setTitle:@"play" forState:UIControlStateNormal];

        [_stopTapped setEnabled:NO];
        [_playTapped setEnabled:YES];

    }

Yukarıdaki cevaplara göre, bazı değişiklikler yaptım ve doğru çıktıyı aldım.

Adım 1: "inf.plist" altına Mikrofon kullanım izinlerini ekleyin ==>

  <key>NSMicrophoneUsageDescription</key>
  <string>${PRODUCT_NAME} Microphone Usage</string>

Adım 2:

1. Kayıt ses dosyasını Yerel Belge Dizini'ne kaydedin

2. Kayıt oynat / durdur

3. Kayıtlı ses dosyasının Süresini Alın

İşte kaynak kodu. Lütfen bir defa göz atın ve kullanın.

ViewController.h

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface ViewController : UIViewController{
AVAudioPlayer *audioPlayer;
AVAudioRecorder *audioRecorder;
}

-(IBAction) startRecording;
-(IBAction) stopRecording;
-(IBAction) playRecording;
-(IBAction) stopPlaying;

@end

ViewController.m

#import "ViewController.h"
@interface ViewController () <AVAudioRecorderDelegate, AVAudioPlayerDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

-(IBAction) startRecording{
// Setup audio session
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
NSError *err = nil;
[audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
if(err)
{
    NSLog(@"audioSession: %@ %ld %@", [err domain], (long)[err code], [[err userInfo] description]);
    return;
}
[audioSession setActive:YES error:&err];
err = nil;
if(err)
{
    NSLog(@"audioSession: %@ %ld %@", [err domain], (long)[err code], [[err userInfo] description]);
    return;
}
AVAudioSessionRecordPermission permissionStatus = [audioSession recordPermission];
switch (permissionStatus) {
    case AVAudioSessionRecordPermissionUndetermined:{
        [[AVAudioSession sharedInstance] requestRecordPermission:^(BOOL granted) {
            // CALL YOUR METHOD HERE - as this assumes being called only once from user interacting with permission alert!
            if (granted) {
                // Microphone enabled code
                NSLog(@"Mic permission granted.  Call method for granted stuff.");
                [self startRecordingAudioSound];
            }
            else {
                // Microphone disabled code
                NSLog(@"Mic permission indeterminate. Call method for indeterminate stuff.");
                //        UIApplication.sharedApplication().openURL(NSURL(string: UIApplicationOpenSettingsURLString)!)
            }
        }];
        break;
    }
    case AVAudioSessionRecordPermissionDenied:
        // direct to settings...
        NSLog(@"Mic permission denied. Call method for denied stuff.");

        break;
    case AVAudioSessionRecordPermissionGranted:
        // mic access ok...
        NSLog(@"Mic permission granted.  Call method for granted stuff.");
        [self startRecordingAudioSound];
        break;
    default:
        // this should not happen.. maybe throw an exception.
        break;
}
}

#pragma mark - Audio Recording
- (BOOL)startRecordingAudioSound{
NSError *error = nil;
NSMutableDictionary *recorderSettings = [[NSMutableDictionary alloc] init];
[recorderSettings setValue :[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
[recorderSettings setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recorderSettings setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
[recorderSettings setValue :[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[recorderSettings setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[recorderSettings setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];

// Create a new audio file
NSArray *searchPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentPath_ = [searchPaths objectAtIndex: 0];
NSString *pathToSave = [documentPath_ stringByAppendingPathComponent:[self dateString]];
NSLog(@"the path is %@",pathToSave);

// File URL
NSURL *url = [NSURL fileURLWithPath:pathToSave];//FILEPATH];

//Save recording path to preferences
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setURL:url forKey:@"Test1"];
[prefs synchronize];

audioRecorder = [[AVAudioRecorder alloc] initWithURL:url settings:recorderSettings error:&error];
if (!audioRecorder)
{
    NSLog(@"Error establishing recorder: %@", error.localizedFailureReason);
    return NO;
}

// Initialize degate, metering, etc.
audioRecorder.delegate = self;
audioRecorder.meteringEnabled = YES;
//self.title = @"0:00";

if (![audioRecorder prepareToRecord])
{
    NSLog(@"Error: Prepare to record failed");
    //[self say:@"Error while preparing recording"];
    return NO;
}

if (![audioRecorder record])
{
    NSLog(@"Error: Record failed");
    //  [self say:@"Error while attempting to record audio"];
    return NO;
}
NSLog(@"Recroding Started");
return YES;
}

#pragma mark - AVAudioRecorderDelegate
- (void) audioRecorderDidFinishRecording:(AVAudioRecorder *)avrecorder successfully:(BOOL)flag{
NSLog (@"audioRecorderDidFinishRecording:successfully:");
}

#pragma mark - AVAudioPlayerDelegate
- (void) audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{
NSLog (@"audioPlayerDidFinishPlaying:successfully:");
}

- (NSString *) dateString {
// return a formatted string for a file name
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"ddMMMYY_hhmmssa";
return [[formatter stringFromDate:[NSDate date]]stringByAppendingString:@".aif"];
}

-(IBAction) stopRecording{
NSLog(@"stopRecording");
[audioRecorder stop];
NSLog(@"stopped");
}

-(IBAction) playRecording{
//Load recording path from preferences
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSURL *temporaryRecFile = [prefs URLForKey:@"Test1"];

//Get Duration of Audio File
AVURLAsset* audioAsset = [AVURLAsset URLAssetWithURL:temporaryRecFile options:nil];
CMTime audioDuration = audioAsset.duration;
float audioDurationSeconds = CMTimeGetSeconds(audioDuration);
NSLog(@"Duration Of Audio: %f", audioDurationSeconds);

audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:temporaryRecFile error:nil];
audioPlayer.delegate = self;
[audioPlayer setNumberOfLoops:0];
audioPlayer.volume = 1;
[audioPlayer prepareToPlay];
[audioPlayer play];
NSLog(@"playing");
}

-(IBAction) stopPlaying{
NSLog(@"stopPlaying");
[audioPlayer stop];
NSLog(@"stopped");
 }

 @end