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Audio Processing - University of Colorado Colorado Springs
http://cs.uccs.edu/~cs525/audio/audio.html#:~:text=Audio%20masking%20threshold.%20%28from%20Mirinal%20Mandal%27s%20%22Multimedia%20Signals,raises%20this%20threshold%20in%20the%20neighboring%20frequency%20range.
Audiometric Masking - Interacoustics
https://www.interacoustics.com/guides/test/audiometry-tests/audiometric-masking
When storing a threshold while masking, the final masking level is stored in the masking table under the ear that is being tested. The term ‘effective masking’ in this situation refers to the fact that the narrow band noise level was loud enough to effectively mask a pure tone of the indicated level heard by the masked ear.
What is auditory masking? | Sweetwater
https://www.sweetwater.com/sweetcare/articles/what-auditory-masking/
Masked thresholds are the quietest level of the signal perceived when presented in noise. The amount of masking is the difference between the masked and not masked thresholds. For example if the masked threshold is 20dB and the not masked threshold is 35dB the amount of masking would be 15dB.
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.
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.
Human Audio Perception: Masking - Stanford University
https://ccrma.stanford.edu/~bosse/proj/node9.html
masking thresholdcurve every 256 samples (5.8 ms), which is used to quantize the audio data. According to the model, noise under that threshold is completely inaudible to the listener. See section 3.4for a description how the masking threshold is used in quantization. Basics Absolute Threshold of Hearing Implemented Model for ATH
Masking a Tone by Noise | Auditory Neuroscience
https://auditoryneuroscience.com/masking
Masking a Tone by Noise. 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. On every repeat of the …
Masking, Frequency selectivity, and the Critical Band
https://health.uconn.edu/meds5377/wp-content/uploads/sites/151/2017/07/Masking_Frequency_selectivity_and_the_Critical_Band.pdf
masking threshold occurs when the acoustic power of the signal (S) at the filter output is proportional to the acoustic power of the masker (M) at the filter output: S/M = k, with k being a proportionality constant. For a noise masker with constant spectral density (N), and a critical band W, masking threshold occurs when: S/(WxN) = k, hence W = S/(kxN).
ECE 5030 Audio Mapping
https://people.ece.cornell.edu/land/courses/ece5030/FinalProjects/s2014/kkp37_rjs483/kkp37_rjs483/AudioGram.html
The masking test results yield two important takeaways: 1. The audio threshold is higher around the masking frequency compared to the normal audio thresholding results 2. The bandwidth of the masking is not constant across all masking frequencies. The masking bandwidth is minimum for a masking frequency between 1000Hz- 2000Hz.
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