        
        self.profileResult = ""
        // Delay execution of my block for 1 seconds.
        DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(1) * Int64(NSEC_PER_SEC)) / Double(NSEC_PER_SEC), execute: {
            self.profileResult.append("AAC:")
            self.doLoadAAC()
        })
        // Delay execution of my block for 5 seconds.
        DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(5) * Int64(NSEC_PER_SEC)) / Double(NSEC_PER_SEC), execute: {
            self.profileResult.append(" MP3:")
            self.doLoadMP3()
        })