ES439779A1 - Listening educator apparatus. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Listening educator apparatus, comprising an input station equipped with a microphone by which a subject speaks, an output station feeding a pair of headphones placed in the subject's ears for listening by air, a pair of hearing channels by airway connected in parallel between the estrada and exit stations, each comprising a filter and a control room connected to the exit of the estrada station and putting in and out of circuit, alternative and automatically, the two hearing channels in function of the level of the signal at the output of the input station, characterized by further comprising a second pair of bone listening channels each comprising a filter, connected in parallel between the input station and a second output station, connected to vibrators located on the outside of the ear in contact with the mastoid bone of the subject, and sent in parallel through the canal of ma in the same way as the hearing channels by air, so that in resting state the channels of the first two pairs are put in circuit and that since the subject speaks through the microphone the control channel causes the switching of the channels and puts into service the channels of the two second pairs, ensuring each time a simultaneous listening by air and bone. (Machine-translation by Google Translate, not legally binding)