Abstract: Methods and systems for presenting specific information in a virtual reality environment are provided. First, reality information including at least one specific object, regarding to an environment is provided. It is determined whether specific information corresponding to the specific object is received or not. When the specific information corresponding to the specific object is received, the specific information and the reality information are integrated to generate specific reality information regarding to the environment, in which the specific information is displayed at a position corresponding to the specific object in the environment when the specific reality information is viewed.

Abstract: Methods and systems for commencing a process based on a sound trigger are provided. First, a sound is received via a sound reception unit. When an intensity difference between the intensity of the sound at a specific time point and the intensity of the sound at a preceding time point is greater than a predefined value, a process in the electronic device is performed. In some embodiments, the sound is caused by tapping the electronic device.

Abstract: Methods for voice management, and related devices are provided. First, data is detected by a proximity sensor, and data is detected by an attitude sensor. Then, it is determined whether a sound is received by a voice reception unit. It is determined whether to perform a voice recording process or a voice playback process according to the data detected by the proximity sensor, the data detected by the attitude sensor, and whether a sound is received by the voice reception unit.