Abstract: A controller for granting a user input device control of a controllable device including a receiver arranged for receiving a first sound signal recorded within a first time frame by a first sound sensor and receiving a second sound signal recorded within a second time frame by a second sound sensor located at the user input device. The controller further includes a processor arranged for determining a level of similarity between the first sound signal and the second sound signal. The processor is further arranged for granting the user input device control of the controllable device if a sufficient level of similarity has been determined. This enables the controller to determine if the user input device is in the same space as the first sound sensor, and it allows the creation of a control space of the controllable device based on the characteristics of the first sound sensor.

Abstract: A controller 100 for granting a user input device 102 control of a controllable device 104 is disclosed. The controller 100 comprises a receiver 106 arranged for receiving a first sound signal recorded within a first time frame by a first sound sensor 110. The receiver 106 is further arranged for receiving a second sound signal recorded within a second time frame by a second sound sensor 112 located at the user input device 102. The controller 100 further comprises a processor 108 arranged for determining a level of similarity between the first sound signal and the second sound signal, wherein the first time frame and the second time frame at least partially overlap. The processor 108 is further arranged for granting the user input device 102 control of the controllable device 104 if a sufficient level of similarity has been determined.