InterAppAudioDelay/InterAppAudioDelay/Delay.h
/* |
File: Delay.h |
Abstract: |
Version: 1.1.2 |
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*/ |
#import <Foundation/Foundation.h> |
#import <AudioToolbox/AUGraph.h> |
#import <AudioUnit/AudioComponent.h> |
#import <AudioUnit/AudioUnitProperties.h> |
#import <AudioToolbox/AudioToolbox.h> |
#import <AVFoundation/AVAudioSession.h> |
#import "CAUITransportView.h" |
@interface Delay : NSObject<CAUITransportEngine> { |
AUGraph delayGraph; |
AudioUnit delayUnit; |
AudioUnit outputUnit; |
AUNode delayNode, outNode; |
BOOL inForeground; |
Boolean graphStarted; |
HostCallbackInfo *callBackInfo; |
AudioStreamBasicDescription stereoStreamFormat; |
} |
@property (strong, nonatomic) UIImage *audioUnitIcon; |
@property (nonatomic) BOOL playing; |
@property (nonatomic) BOOL recording; |
@property (nonatomic) BOOL connected; |
@property (nonatomic) Float64 playTime; |
#if defined(__cplusplus) |
extern "C" |
#endif |
NSString *formattedTimeStringForFrameCount(UInt64 inFrameCount, Float64 inSampleRate, BOOL inShowMilliseconds); |
/* @property delayTime |
Time taken by the delayed input signal to reach the output |
*/ |
@property (nonatomic) NSTimeInterval delayTime; |
/* @property feedback |
Amount of the output signal fed back into the delay line |
*/ |
@property (nonatomic) float feedback; |
/* @property lowPassCutoff |
Cutoff frequency above which high frequency content is rolled off |
*/ |
@property (nonatomic) float lowPassCutoff; |
/* @property wetDryMix |
Blend of the wet and dry signals |
*/ |
@property (nonatomic) float wetDryMix; |
- (void) audioUnitPropertyChangedListener: (void *) inObject unit: (AudioUnit) inUnit propID: (AudioUnitPropertyID) inID scope: (AudioUnitScope) inScope element: (AudioUnitElement) inElement; |
/* Delay effect related setters */ |
- (void) setWetDryMix: (float) wetDryMix; |
- (void) setDelayTime: (NSTimeInterval) delayTime; |
- (void) setFeedback: (float) feedback; |
- (void) setLowPassCutoff: (float) lowPassCutoff; |
//Set float values on the audio unit directly |
- (BOOL) setValue:(float)value forParam:(AudioUnitParameterID) paramID; |
- (int) getWetDryTag; |
- (int) getDelayTag; |
- (int) getFeedbackTag; |
- (int) getLowPassCutoffTag; |
- (float) getMinValueForParam: (AudioUnitParameterID) paramID; |
- (float) getMaxValueForParam: (AudioUnitParameterID) paramID; |
@end |
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