How to record voice with out noise in AVAudio Recorder iPhone SDK
<p>I am new to iPhone Developing,Here i have developed like a Tomcat Application.I have changed the Voice Pitch,but while i am playing the recorded voice there is a lot of noise in that audio file.
        I have recorded sound by using AVAudio Recorder So how can i remove the noise in recording.?</p>

<pre><code>NSMutableDictionary *settings = [[NSMutableDictionary alloc] init]; 
</code></pre>

<p>[settings setValue:[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey]; </p>

<pre><code>[settings setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey]; 

[settings setValue:[NSNumber numberWithInt:1] forKey:AVNumberOfChannelsKey]; 

[settings setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey]; 

[settings setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];

[settings setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey]; 

recorder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:self.audioPath]
                                                        settings:settings error:nil];

        recorder = [self.recorder retain];
        [recorder prepareToRecord]; 
                    recorder.meteringEnabled = YES;
            [recorder record]; 
</code></pre>

<p>Please Help me ,
Thanking you in Advance.</p>
