Measurement with verification of stationary signals and noise in extremely quiet environments: Measuring below the noise floor

Ellingson, Roger M.; Gallun, Frederick J.; Bock, Guillaume

doi:10.1121/1.4908566

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…This result gave us confidence that we could extrapolate downward to and below the noise floor. For a fuller picture of measuring below the noise floor, please see Ellingson et al (2015) and Whittle and Evans (1972).…”

Section: Methodsmentioning

confidence: 99%

Robust and Efficient Online Auditory Psychophysics

et al. 2022

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Most human auditory psychophysics research has historically been conducted in carefully controlled environments with calibrated audio equipment, and over potentially hours of repetitive testing with expert listeners. Here, we operationally define such conditions as having high ‘auditory hygiene’. From this perspective, conducting auditory psychophysical paradigms online presents a serious challenge, in that results may hinge on absolute sound presentation level, reliably estimated perceptual thresholds, low and controlled background noise levels, and sustained motivation and attention. We introduce a set of procedures that address these challenges and facilitate auditory hygiene for online auditory psychophysics. First, we establish a simple means of setting sound presentation levels. Across a set of four level-setting conditions conducted in person, we demonstrate the stability and robustness of this level setting procedure in open air and controlled settings. Second, we test participants’ tone-in-noise thresholds using widely adopted online experiment platforms and demonstrate that reliable threshold estimates can be derived online in approximately one minute of testing. Third, using these level and threshold setting procedures to establish participant-specific stimulus conditions, we show that an online implementation of the classic probe-signal paradigm can be used to demonstrate frequency-selective attention on an individual-participant basis, using a third of the trials used in recent in-lab experiments. Finally, we show how threshold and attentional measures relate to well-validated assays of online participants’ in-task motivation, fatigue, and confidence. This demonstrates the promise of online auditory psychophysics for addressing new auditory perception and neuroscience questions quickly, efficiently, and with more diverse samples. Code for the tests is publicly available through Pavlovia and Gorilla.

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Section: Methodsmentioning

confidence: 99%

Robust and Efficient Online Auditory Psychophysics

et al. 2022

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“…This result gave us confidence that we could extrapolate downward to and below the noise floor. For a fuller picture of measuring below the noise floor, please see Ellingson, Gallun, & Bock (2015) and Whittle & Evans (1972).…”

Section: Methodsmentioning

confidence: 99%

Robust and efficient online auditory psychophysics

Zhao

Brown

Holt

et al. 2021

Preprint

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Most human auditory psychophysics research has been conducted with extreme 'auditory hygiene' in carefully controlled environments, with calibrated audio equipment, and potentially hours of repetitive testing with expert, well-characterized listeners. The incompatibility of web-based platforms with such experimental regimes would seem to preclude online auditory psychophysical paradigms, where success may hinge on absolute sound presentation level, reliably estimated perceptual thresholds, and sustained motivation, attention, and vigilance. Here, we introduce and validate a set of procedures that aim to address these challenges and facilitate successful online auditory psychophysics research. First, we establish a simple means of setting sound presentation levels where online participants serve as their own sound level meter. Across a set of three experiments conducted in person, we demonstrate the stability and robustness of this volume setting procedure both 'in the wild' and in controlled settings. Second, we test participants' tone-in-noise thresholds using widely adopted online experiment platforms, and demonstrate that reliable threshold estimates can be derived in approximately one minute of testing. Third, using these sound level setting and thresholding procedures to establish participant-specific stimulus conditions, we show that frequency-selective attention can be reliably demonstrated in individual participants with an online implementation of the classic, yet challenging, probe signal psychophysics paradigm. Finally, we show how threshold and attentional measures relate to well-validated assays of online participant fatigue, task confidence, and apathy acquired at multiple timepoints across the task. In all, this demonstrates the promise of asking new questions in auditory neuroscience with classic, yet challenging, online psychophysics paradigms. The code to duplicate our results is publicly available in JavaScript, through both Pavlovia (pavlovia.org) and Gorilla (gorilla.sc).

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“…There are several studies that identify noise in some public locations such as in vocational high schools, tourist attractions, entertainment venues, workplaces, highways, and hospitals. Noise at that location averages above the set tolerance limit [6][7][8]. East Java is one of the fastest growing provinces of tenure and industry in Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Community Regulation in Noise Control Towards Less Noise City

Purnami¹

2019

OOAJ

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Background: An increase in the noise of a region closely related to industrial areas and technological developments.However, these conditions are still slightly considered so that the impact on people who are vulnerable to hearing loss. Therefore, it is necessary to control the noise in the community. Objectives:To identifying some of the noisy potential locations and levels of community hearing in some locations. Methods:This study uses analytical observational designs that taken in vocational high schools, tourist attractions, entertainment venues, workplaces, highways, and hospitals. The measurement of noise by using Sound Level Meter and hearing level using Audiometry. Results:The intensity of the sound achieves multiple check results could reach up to 85 dB or more. Noise at vocational high school (101 dB), East Java police station (115-128 dB), Highways (78-78 dB), Tourist Venues (88-97 dB), and several locations in hospitals such as water pumps (104 dB), boiler (96 dB), kitchen (99 dB), incinerator (101 dB), grinding (113 dB), and workshop location (102 dB). Increased hearing levels of more than 25 dB in East Java Police School (37%), Vocational School (61% class, 51% class III), and some Hospital locations such as sanitation (29%), kitchen (48 %), and workshop location (50%). Conclusion:The data collection on potential locations of noise and the level of community hearing in some locations provides a picture of the dangers of noise. The noise setting in the community is important to implement and optimize health and safety management to makes a safety city.

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Measurement with verification of stationary signals and noise in extremely quiet environments: Measuring below the noise floor

Cited by 5 publications

References 8 publications

Robust and Efficient Online Auditory Psychophysics

Robust and Efficient Online Auditory Psychophysics

Robust and efficient online auditory psychophysics

Community Regulation in Noise Control Towards Less Noise City

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