A method comprising identifying a sample rate of received audio content, receiving a conversion sample rate, and converting the received audio content to the received conversion sample rate. The invention provides a scanning interference electron microscope which is improved in detection efficiency of electron beam interference fringes, and enables the user to observe electric and magnetic information easily in a micro domain of a specimen as a scan image of a high SN ratio under optimum conditions. The two links are respectively connected to two ends of the base plate so that when rotating the base, the two links push the two clamp members away from each other or pull the two clamp members toward each other. Upon request, the life calendar is presented to the user populated with at least one of user data, user events, and recommendations.