Abstract: According to a first aspect of the present disclosed subject matter a speech interpretation device designed to be worn by a user, the device comprising: at least one voice input component configured to acquire unintelligible spells the by the user; a processor coupled with memory comprising speech recognition module configured to recognize the unintelligible-spell and associate it with one of a plurality of intelligible-spells; and at least one speaker configured to play the intelligible-spell. The unintelligible spells are probes by the user during a recognition mode of the device and exemplars the by the user during a training mode of the device.