@class NSObject; @protocol VCAudioPowerLevelMonitorDelegate; @interface VCAudioPowerLevelMonitor : NSObject { unsigned int startDetectRemoteAudioLowPowerTime; float audioPowerThreshold; unsigned int audioLowPowerTimeInterval; BOOL isAudioPowerBelowThreshold; BOOL isAudioPowerMovingAverage; float audioPowerMovingAverageCoefficient; float currentAudioAverage; } @property (nonatomic) NSObject *delegate; - (id)init; - (void)detectRemoteAveragePowerLevel:(float)a0 timestamp:(unsigned int)a1; @end