A device for auditory manipulation of an auditory stream for enhancement of language processing in an autism spectrum disorder individual, the device comprising: an audio input interface configured to receive the auditory stream, the auditory stream including an acoustic stimulus perceptually representing an object; a non-transitory, tangible storage device configured to store acoustic manipulation parameters for a predetermined acoustic detail characteristic, the predetermined acoustic detail characteristic associated with the ASD individual and based on a measured language processing capability of the ASD individual; an acoustic detail manipulation unit configured to: select an acoustic manipulation parameter among the stored acoustic manipulation parameters for the predetermined acoustic detail characteristic, and modify the auditory stream based on the selected acoustic manipulation parameter, to reduce the predetermined acoustic detail characteristic while preserving a lexicality of the stimulus, such that the reduced acoustic detail characteristic enhances perception of the object by the ASD individual even when the stimulus includes two or more acoustically distinct stimuli each perceptually representing the object; and at least one loudspeaker configured to output the modified auditory stream to the ASD individual, characterized in that the predetermined acoustic detail characteristic includes at least one of a pitch, a harmonic, an intonation, a transient sound, a sibilant sound or frequency dynamics of the stimulus. an audio input interface configured to receive the auditory stream, the auditory stream including an acoustic stimulus perceptually representing an object; a non-transitory, tangible storage device configured to store acoustic manipulation parameters for a predetermined acoustic detail characteristic, the predetermined acoustic detail characteristic associated with the ASD individual and based on a measured language processing capability of the ASD individual; an acoustic detail manipulation unit configured to: select an acoustic manipulation parameter among the stored acoustic manipulation parameters for the predetermined acoustic detail characteristic, and modify the auditory stream based on the selected acoustic manipulation parameter, to reduce the predetermined acoustic detail characteristic while preserving a lexicality of the stimulus, such that the reduced acoustic detail characteristic enhances perception of the object by the ASD individual even when the stimulus includes two or more acoustically distinct stimuli each perceptually representing the object; and select an acoustic manipulation parameter among the stored acoustic manipulation parameters for the predetermined acoustic detail characteristic, and modify the auditory stream based on the selected acoustic manipulation parameter, to reduce the predetermined acoustic detail characteristic while preserving a lexicality of the stimulus, such that the reduced acoustic detail characteristic enhances perception of the object by the ASD individual even when the stimulus includes two or more acoustically distinct stimuli each perceptually representing the object; and at least one loudspeaker configured to output the modified auditory stream to the ASD individual, characterized in that the predetermined acoustic detail characteristic includes at least one of a pitch, a harmonic, an intonation, a transient sound, a sibilant sound or frequency dynamics of the stimulus.