Recording audio
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.
Getting ready
Please refer to the project RecipeCollection02 for full working code of this recipe.
How to do it...
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> ...
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