A method for performing the following operations (not necessarily in the following order): (i) receiving by an augmented reality system, a series of images corresponding to views of the real world; (ii) processing, by the augmented reality system, the series of images to determine presence of a first object; (iii) determining, by the augmented reality system, that the first object meets a first set of conditions such that the first object belongs to a first object category; and (iv) responsive to the determination that the first object belongs to the first object category, providing an audio response in the form of one at least one of the following types of audio responses: communicating a predefined sound to an augmented reality user and/or changing audio characteristic(s) of a sound not generated by the augmented reality system which is being experienced by the augmented reality user.