@class NSArray; @interface _EARAcousticFeature : NSObject <NSCopying> @property (readonly, copy, nonatomic) NSArray *acousticFeatureValuePerFrame; @property (readonly, nonatomic) double frameDuration; - (void).cxx_destruct; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)_initWithAcousticFeatureValues:(id)a0 frameDuration:(float)a1; @end