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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