Abstract: An assistance device (1) comprising: at least one processor (3) operatively coupled with a memory (5), at least one first input (10) connected to the processor (3) and capable of receiving video data coming from at least one video sensor (11), and at least one second input (20) connected to the processor (3) and capable of receiving audio data coming from at least one microphone (21). The processor (3) is arranged for: analyzing the video data coming from the first input (10), identifying at least one reference human gesture in the video data, and triggering an analysis of audio data only if said at least one reference human gesture is detected in the video data.