iOS audio recording sounds fuzzy

[gbenna]

I am recording audio in an app. I have it so that I start the recording with one button, then you can pause it with another button, resume with another button, and then stop it with another button. The first time I do this it is fine, however when I record a second audio it is saved but it is fuzzy sounding. What would cause this and how can I make all the recording clear sounding?

-(IBAction)recordAudio:(id)sender{


NSLog(@"recordAudio");
NSError *error;





NSString *string2 = self.number.text;
int n = [string2 intValue];
int value = n + 1;
NSString *string = [NSString stringWithFormat:@"%d",value];
[self.number setText:string];



 /*if (isNotRecording){
    isNotRecording =NO;*/
    [audiobutton setTitle:@"Stop" forState:UIControlStateNormal];
    recStateLabel.text = @"recording";
    NSMutableDictionary *recordSettings = [[NSMutableDictionary alloc] init];
    if(recordEncoding == ENC_IMA4)
    {
        [recordSettings setObject:[NSNumber numberWithInt: kAudioFormatAppleIMA4   ]    forKey: AVFormatIDKey];
        [recordSettings setObject:[NSNumber numberWithFloat:44100.0] forKey: AVSampleRateKey];
        [recordSettings setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
        [recordSettings setObject:[NSNumber numberWithInt:6400] forKey:AVEncoderBitRateKey];
        [recordSettings setObject:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
        [recordSettings setObject:[NSNumber numberWithInt: AVAudioQualityMin] forKey: AVEncoderAudioQualityKey];
    }
    NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [documentPaths objectAtIndex:0];
    NSString *dataPath2 = [documentsDirectory stringByAppendingPathComponent:[[self imageNameTextField]text]];
    NSString *dataPath = [dataPath2 stringByAppendingString:@"/Audio"];
    if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
        [[NSFileManager defaultManager] createDirectoryAtPath:dataPath  withIntermediateDirectories:NO attributes:nil error:&error];
    NSString *audioPath = [dataPath stringByAppendingPathComponent:[[self imageNameTextField]text]];
    NSString *audioPath5 = [audioPath stringByAppendingString:@"-"];
    NSString *audioPath2 = [audioPath5 stringByAppendingString:[[self number]text]];

    audioPath2=[audioPath2 stringByAppendingFormat:@".caf"];
    NSURL *url = [NSURL fileURLWithPath:audioPath2];



    recorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSettings error:nil];
    [recorder setDelegate:self];
    [recorder prepareToRecord];
    [recorder record];

/* }


else {
    isNotRecording =YES;
    [audiobutton setTitle: @"Done" forState:UIControlStateNormal];
    recStateLabel.text = @"Not Recording";
    [recorder stop];

    NSLog(@"stopped");


   NSString *savedString1 = number.text;
   NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
   NSString *documentsDirectory = [documentPaths objectAtIndex:0];
   NSString *dataPath2 = [documentsDirectory stringByAppendingPathComponent:[[self imageNameTextField]text]];

   NSString *documentTXTPath2 = [dataPath2 stringByAppendingPathComponent:@"counter"] ;
   documentTXTPath2 =[documentTXTPath2 stringByAppendingFormat:@".txt" ] ;
   [savedString1 writeToFile:documentTXTPath2 atomically:YES
                    encoding:NSUTF8StringEncoding error:nil];
        }*/
}

-(IBAction)pause{
[recorder pause];
recStateLabel.text = @"Paused";
}

-(IBAction)record{
[recorder record];
recStateLabel.text = @"Recording";
}
-(IBAction)stop{
[recorder stop];
recStateLabel.text = @"Done";

NSString *savedString1 = number.text;
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,    NSUserDomainMask, YES);
NSString *documentsDirectory = [documentPaths objectAtIndex:0];
NSString *dataPath2 = [documentsDirectory stringByAppendingPathComponent:[[self imageNameTextField]text]];

NSString *documentTXTPath2 = [dataPath2 stringByAppendingPathComponent:@"counter"] ;
documentTXTPath2 =[documentTXTPath2 stringByAppendingFormat:@".txt" ] ;
[savedString1 writeToFile:documentTXTPath2 atomically:YES
                 encoding:NSUTF8StringEncoding error:nil];
}

As you can see I have tried to have only three buttons which worked but with the same results.

I call the audiosession in the viewDidLoad

 

[gbenna]

audio recording sounds fuzzy

I got this figured out with some help from Jimm over at iPhone dev sdk.

I just added recorder = nil; in the -(IBAction)stop. Works fine now.