System/Library/PrivateFrameworks/SiriSpeechSynthesis.framework
UserVoiceProfile.h
@interface UserVoiceProfile : NSObject
@property (nonatomic) float pitch_mean;
@property (nonatomic) float pitch_std;
@property (nonatomic) float energy_mean;
@property (nonatomic) float energy_std;
@property (nonatomic) float duration_mean;
@property (nonatomic) float duration_std;
- (id)init;
- (id)initWithJson:(id)a0;
@end