A notable feature on most iOS devices is the ability to record audio. In this recipe, we will use the microphone to record audio and save it to a temporary location on the disk using the AVAudioRecorder class. We will then play it back with a modified pitch using the CDSoundEngine class.
Link the CoreAudio and AVFoundation frameworks to your project. Now, execute the following code:
#import <AVFoundation/AVFoundation.h>
#import <CoreAudio/CoreAudioTypes.h>
#import "CocosDenshion.h"
@interface Ch6_RecordingAudio : Recipe <AVAudioRecorderDelegate>
{ /* CODE OMITTED */}
@implementation Ch6_RecordingAudio
-(CCLayer*) runRecipe {
//Set initial pitch and recorded temp file object
pitch = 1.0f;
recordedTmpFile = nil;
//Init audio session
[self initAudioSession];
/* CODE OMITTED */
return self;
}
-(void) initAudioSession {
//Our AVAudioSession...