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Audiometric Masking - Interacoustics
https://www.interacoustics.com/guides/test/audiometry-tests/audiometric-masking
Perform bone conduction audiometry unmasked for both ears. Step 3. Apply masking if needed: (1) In case of an air-bone gap of 15 dB or more, you must reassess the bone conduction threshold while applying masking to the non-test …
Masking - Learn more about upward spread of masking | hear ...
https://www.hear-it.org/Masking
Masking is the process by which the threshold of hearing for one sound is raised by the presence of another sound. If someone listens to a soft and a loud sound at the same time, he or she may not hear the soft sound. The soft sound is masked by the loud sound.
Sound Masking - Georgia State University
http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/mask.html
Audibility Threshold, Second Sound. If the general Just Noticeable Difference for sound intensity is taken to be one decibel, then the addition of a second sound would have to raise the total intensity by 1 dB to be heard. This is roughly a 25% increase, so the second sound would have to have about 1/4 the intensity, or about 6 dB less than the existing, masking sound.
Masking a Tone by Noise | Auditory Neuroscience
https://auditoryneuroscience.com/masking
One of the classical experiments of psychoacoustics is the measurement of the lowest sound level at which a tone is heard in the presence of a white noise masker. This sound level is called the 'masked threshold'. In the following example, the masker is played at a fixed level, and the level of the tone can be adjusted.
MASKING IN PURE TONE AUDIOMETRY - ENT Lectures
http://entlectures.com/Resources/Dialogs/Dialogue%20with%20the%20ENT%20Residents_Masking%20in%20pure%20tone%20audiometry.pdf
Rule 1: Masking is needed at any frequency where the difference between the left and right not-masked A/C thresholds is 40 dB or more when using supra- or circum-aural earphones or 55 dB or when using insert earphones Rule 2: Masking is needed at …
Auditory Masking: Knowing What You ... - The Science of …
https://science-of-sound.net/2016/09/auditory-masking-knowing-dont-hear/
Quite obviously, the “raised” hearing threshold due to the masker signal is highest around the masker frequency. If the second sound in the same frequency range is more than 3dB softer than the masker, it isn’t heard. The threshold decreases with a very steep slope of around 100dB/oct towards lower frequencies.
AUDIO COMPRESSION HE-AAC v2 - EBU
https://tech.ebu.ch/docs/techreview/trev_305-moser.pdf
of the audio signal. The so-called masking effect was observed: the human auditory system is not able to perceive distortions that are masked by a stronger signal in the spectral neighbourhood. Thus, when looking at the short-term spectrum, a so-called masking threshold can be calculated for this spectrum.
Board votes to increase mandatory mask threshold – St ...
https://callnewspapers.com/board-votes-to-increase-mandatory-mask-threshold/
1 day ago · By Erin Achenbach, News Editor. February 7, 2022. The Mehlville Board of Education voted last Thursday to increase the masking requirement threshold in school buildings from 1 percent to 1.5 ...
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