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| Test result in from Doctor
Sandy Engelberth, Audiologist |
| Initial testing was performed on a 54 year
old male test subject. A baseline hearing test was obtained in soundfield
under calibrated and controlled conditions in a sound treated room
using pulsed warble tones for 8 frequencies (250Hz - 8000Hz) in an
open-ear condition with sound sources placed at 90 and 180 degrees
azimuth. Subsequent testing was performed under the same conditions
but covering the open ears with the Mutt Muff© product and then the
4 Paws Aviation product. Threshold detection levels at the eight
test frequencies were averaged together to compare the amount of
sound reduction in decibels (dBHL). Raw data shows an average of
26.875dBHL for the Mutt Muff© product and an average of 41.875dBHL
for the 4 Paws Aviation product. The higher the number of dBHL, the
greater the amount of sound reduction and subsequent better hearing
protection. Conclusion: The 4 Paws Aviation product shows a significantly
higher amount of average sound reduction compared to the Mutt Muff©
product. |
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