Sonar Headphone Selection for Optimum Performance: An Overview
Abstract
Real-time auditory detection and aural analysis capability of passive broadband sonar systems needs improvement. A weak link in these systems is the use of communications-bandwidth low-fidelity headsets. Unfortunately, no procedure for headphone (earphone element inside headshell) frequency response measurement exists in military headset specifications. An accurate technique for headphone calibration was devised which provides the earphone element with an acoustic load similar to the one provided by a human wearer. Using this technique, headphone measurement data on commercially available headphones was collected and compared to the current sonar headsets. The advantages and disadvantages of open and sealed circumaural headsets and recent developments in noise canceling headsets are discussed, along with the possibility of reducing noise levels in sonar spaces to permit use of higher fidelity headphone designs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 27, 1995
- Accession Number
- ADA418658
Entities
People
- Joseph S. Russotti
Organizations
- Naval Submarine Medical Research Laboratory