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How do you test noise Cancelling headphones?

Signal-to-noise ratio

Background noise

Noise-cancelling headphones

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Open access•Journal Article•DOI Using the effect of alcohol as a comparison to illustrate the detrimental effects of noise on performance. Brett R.C. Molesworth, Marion Burgess, Belinda Gunnell - Show less +2 more 01 Sep 2013-Noise & Health 10 Citations	They also highlight the benefits of a simple countermeasure such as noise cancelling headphones in mitigating some of the detrimental effects of noise on performance.
Open access•Journal Article•DOI The effect on recognition memory of noise cancelling headphones in a noisy environment with native and nonnative speakers Brett R.C. Molesworth, Marion Burgess, Belinda Gunnell, Diana Löffler, Antje C. Venjakob - Show less +4 more 01 Jul 2014-Noise & Health 26 Citations	The beneficial effects of noise cancelling headphones in improving the signal to noise ratio led to an improved performance for nonnative speakers.
Journal Article•DOI Adaptive noise cancelling and condition monitoring G.K. Chaturved, D.W. Thomas - Show less +1 more 08 Jun 1981-Journal of Sound and Vibration 48 Citations	In the work reported here it has been shown that the statistical and spectral analyses techniques which fail to detect and diagnose faults because of a poor signal to noise ratio can be made effective by using an adaptive noise cancelling technique.
Open access•Journal Article•DOI Physical characteristics of headphones used in psychophysical experiments Tatsuya Hirahara 01 Jul 2004-Acoustical Science and Technology 14 Citations	The results indicate that coupler responses and dummy-head responses are not identical to actual-ear responses in most models, open-air type headphones have poor sound shielding ability, and the harmonic distortion and phase characteristics of all headphones tested are not problematic.
Open access•Journal Article•DOI Noise cancelling of MRS signals combining model-based removal of powerline harmonics and multichannel Wiener filtering Jakob Juul Larsen, E. Dalgaard, Esben Auken - Show less +2 more 01 Feb 2014-Geophysical Journal International 99 Citations	We show that noise cancelling can be improved if the multiple origins of noise are taken into account.

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Related Questions

How does acoustic reflex testing work?5 answersAcoustic reflex testing involves measuring the acoustic reflex thresholds (ART) and middle ear muscle reflex (MEMR) responses to assess auditory function. These tests can help evaluate the site of lesion, differentiate cochlear from retrocochlear pathologies, and investigate effects of noise exposure and ototoxicity on auditory function. The wideband acoustic immittance (WAI) technique allows for a comprehensive evaluation across a wide frequency range, providing benefits such as lower ARTs and automated MEMR identification. Additionally, acoustic reflex shifts in absorbed sound power can objectively determine the presence of reflex effects, aiding in clinical diagnosis and monitoring of middle-ear and cochlear function in both infants and adults. These tests play a crucial role in understanding auditory responses and potential auditory deficits related to various factors.

What is the importance of testing in acoustic properties?3 answersTesting in acoustic properties is important for various reasons. Acoustic testing allows for the evaluation of material, component, or system properties without causing damage, making it a non-destructive testing method. Acoustic material testing is particularly relevant in industries where noise control and sound quality are important aspects of product design. Acoustic measurements can provide valuable engineering data, such as sound absorption, which is related to structural factors in various fields, including building and construction. Additionally, testing acoustic properties can be used to examine the acoustic ambience in open spaces with combined noise sources, allowing for the measurement of reverberation time and other acoustic parameters. Overall, testing in acoustic properties is crucial for assessing the quality and characteristics of materials, optimizing product design, and understanding the acoustic behavior of different environments.

How to test noise reduction systems?3 answersNoise reduction systems can be tested using various methods. One approach involves using a test control device connected to a test box, where noise data is obtained by scanning the equipment under test with a probing rod/pin. Another method involves employing analog filters and corresponding inverse digital filters within the system to reduce noise introduced during signal processing. These filters can be adjusted to improve the signal-to-noise ratio (SNR). Additionally, a method for noise reduction involves determining image blocks in a group of continuous frames and applying spatial and temporal domain filtering intensities to target pixels. By following these testing methods, the effectiveness of noise reduction systems can be evaluated and optimized.

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