Comparative investigation of the sound attenuation of four types of flyer helmets
Abstract
The sound attenuation as a function of frequency was determined for four models of flying helmet. The binaural perception threshold with and without helmet was measured. The flyer helmet SPH-4 gives the highest sound attenuation. The HGU-26 P type shows a significantly higher attenuation than the same helmet in a modified version. Helmet ILX-5 gives the lowest sound attenuation.
- Publication:
-
Unknown
- Pub Date:
- April 1983
- Bibcode:
- 1983cisa.rept.....M
- Keywords:
-
- Acoustic Attenuation;
- Acoustic Measurement;
- Helmets;
- Audiometry;
- Binaural Hearing;
- Human Factors Engineering;
- Thresholds (Perception);
- Acoustics