Academic Research
Combining our own multi-faceted wind noise testing / analysis with shared academic research.
We support academic research regarding ear-wind noise and we are proud to have had Cat-Ears included in thesis work performed at a major technical university in Germany. When the thesis was finished, we were pleased to learn that the most effective prototype did not outperform our products: "Regarding the comparison of the final prototype created in this thesis work (vs. Cat-Ears)... It turns out that a similar effect can be achieved with Cat-Ears."
Please contact us if you are interested in our support or involvement regarding passive wind noise reduction.
Wind tunnel (open jet type) testing at a major technical university in Germany.
Wind deflecting prototypes from thesis work at a major university in the United States.
Tests on humans have revealed that exposure to low levels of noise for a moderate period of time have resulted in emotional and physical fatigue. Other symptoms that become evident at higher levels of noise exposure are nausea and loss of acute motor skill coordination as well as lower results concerning attention in problems requiring higher concentration. The area of health is directly related to the importance of safety as it relates to (temporary or permanent) hearing damage due to exposure to wind noise...
We would like to thank Porter Gieske for contacting Cat-Ears and sharing his Masters Thesis with us.
Wind noise / cycling helmet analysis at another major technical university in Germany.
Cyclists are exposed to wind noise while riding, which can lead to high levels of hearing strain depending on the speed of travel. For cyclists who can travel at speeds of over 40 km/h, and significantly higher in competitive sports, their ears are usually not covered by their helmets. The wind can negatively impact hearing due to noisy, turbulent air turbulence on the ear cups, helmet straps, helmet shells, or goggle temples. The creation of such air turbulence can be reduced with the help of wind deflectors on the headband (straps), under-hoods, and neck and ear coverings. "Attaching pile material to the front helmet straps, known as Airstreamz, can reduce wind noise in the ear - at 50km/h with AirStreamz: 13.2 dB(A)..." (Google translation)
We would like to thank Dr.-Ing. Aydin Ünlü for contacting Cat-Ears and sharing his academic research with us.
At Cat-Ears, we imagine, solve, design, and lead. Always with unyielding integrity.