Sentences with phrase «background noise levels»

Deep blue regions, such as Yellowstone National Park in Wyoming and the Great Sand Dunes National Park in Colorado, have background noise levels lower than 20 decibels — a silence likely as deep as before European colonization, researchers say.

The high - grade silicone earplugs will stay securely in place thanks to the well - designed triple flanges, and will reduce background noise levels without muffling.

Last year, researchers found that great tits (Parus major) spontaneously change their tune depending on background noise levels.

Noise arriving from adjacent learning spaces and circulation spaces increases background noise levels, making speech intelligibility lower.

An analysis of this study showed that background noise levels affect a teachers» vocal effort, and suggests that teachers» vocal health should be given strong consideration when developing new classroom standards.

The noise criteria for wind farms applied in Australia establish fixed noise limits for low background noise environments and variable noise limits when background noise levels are higher.

High winds raise the background noise level, seismic surveys» intense pulses are unique and easily identifiable, and marine vessels are clearly identified by low - frequency rumbles.

In the first test (audio alone), the children with ASD performed almost as well as typically developing children across all age groups and all background noise levels.

In the second test (video alone), the children with ASD performed significantly worse than the typically developing children across all age groups and all background noise levels.

(C) Statistical independence of stimulus - conditioned response distributions to the background noise level (see Materials and Methods for details of metric).

Audibility is affected by the loudness of the speech (signal) relative to the background noise level and is often expressed as a «signal to noise ratio» (SNR)».

And we looked at the difference between the teacher's voice and the background noise levels.

To acclimatize the animals to the auditory stimuli, music and voice recordings, similar to those used in the experimental phase, were played during the last 10 min of the acclimation phase at approximately 5 dB above the background noise level.

The cardioid pickup pattern helps with this, and contributes a very low background noise level.