Panoramic audiophone for passive sonar e.g. for military submarine has time and frequency isolator for each contact with left and right transducers for users ears

摘要

The panoramic audiophone for sonar processes signals received by a passive sonar. The audiophone opens channels in the direction of each contact and a time and frequency isolator (120-122) is provided for each channel. Left-right treatment modules (130,132) for each signal filter the incoming signals for reception by the human ear corresponding to each contact. There are summing circuits (141,142) for each ear. A bi-aural sound receiver (150) receives the summed signals from the left and right transducers.