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Active Headsets Incorporated is now manufacturing talk-through systems for both active noise reduction equipped helmets and passive noise reduction equipped helmets. This unique system allows the user to hear conversation or other audio cues external to the helmet without the wearer being required to remove the helmet or try to lift an ear seal in order to hear them. This system allows for a natural ability to carry on a conversation with another person while wearing the helmet. The system provides for spatial effect which means the wearer can tell from which direction a sound originates. Because of this, the wearer can respond to different audio stimulus in the correct direction, and be aware of their surroundings.
The talk-through system is composed of the control boards, two ambient sensing microphones, a 9V power supply, cross-over cable, on/off/volume control and main cable. The system draws its power from the 9V cell attached to the back of the helmet. The on/off volume control engages the system and allows for variable volume of the audio being provided to the user. The sensing microphones, which are mounted near the front of the helmet, allow for a concentrated near-field sound from the direction the user is looking. This provides for clear communication in high noise situations.
The audio quality provided by the system is a high fidelity stereo sound designed to enhance understandability. Enhanced mid-frequencies enable the user to understand conversation better in high noise situations. If the system is turned on and the volume is left at its lowest setting, it will enable the user to understand audio from the aircraft clearer. Whether the audio from the aircraft is stereo or mono, the talk-through system audio will be stereo.
The talk-through system can be used with the CEP audio system. If the CEP system is a standard mono CEP device, audio from the left sensing microphone will be the only microphone heard through the talk through system. In order for the user to benefit from both microphone inputs and to have the full capacity of the talk-through system, a stereo CEP device would be required.
The talk-through system benefits the user by:
· Patient confidence, allowing the user to communicate with the patient in a normal manner, relaxing the patient during initial examination and transport.
· The talk-through system provides for time savings by allowing the user to keep their helmet on and still be able to do their job.
· Ease of helmet use. Because the talk-through system allows for normal conversation without helmet removal, the user does not have to doff and don their helmets, or be concerned with keeping up with their helmet. In effect, this allows the helmet to be a more effective tool for the user, and provide needed protection in situations that require it.
The passive talk-through system can be installed into any passive helmet.
The active talk-through system is an addition to the Active Headsets Incorporated ANR System.