Journal ArticleDOI
Listening in a Noisy Environment: Integration of active noise control in audio products.
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TLDR
In this article, audio-Integrated ANC algorithms were briefly explained and several potential audio-integrated ANC products were discussed and realtime experiments were conducted to verify the performance of noise reduction.Abstract:
Have you ever faced a situation where you really wanted to enjoy your favorite music in a very noisy environment? To overcome this problem, you can either block the noise or increase the music level to mask the annoying sounds. This begets the question, "Is there a better solution?" In recent years, the technology industry has grown enormously, especially in the areas of smart, mobile, and wearable electronic products. Many companies are trying to gain consumers' attention by developing high-quality products equipped with advanced noise reduction. Among them, several companies have successfully used active noise control (ANC) techniques to cope with noise problems.read more
Citations
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Stability Consideration and Implementation of a Robust Hybrid Feedback Active Noise Cancellation Headset
Ying Song,Senjin Liu,Yu Gong +2 more
TL;DR: It is analytically show that adding an analog feedback loop into the digital ANC systems can effectively reduce the plant fluctuation, thus achieving a more robust system.
Journal ArticleDOI
Ten questions concerning active noise control in the built environment
TL;DR: The ten questions aim to demystify the principles of ANC and highlight areas in which environmental noise can be actively mitigated and research gaps are identified that would enable increased adoption of ANC in the built environment.
Journal ArticleDOI
Design and Implementation of an Active Noise Control Headphone With Directional Hear-Through Capability
TL;DR: The experimental study demonstrates that the proposed spatially selective ANC headphones provide a hear-through capability in the look direction, whilst reducing ambient noise and enabling the wearer to experience reduced noise communication in a noisy environment.
Journal ArticleDOI
Active Control of Low-Frequency Noise through a Single Top-Hung Window in a Full-Sized Room
TL;DR: The performance of active attenuation with the window fully opened was similar to that of passive insulation with fully closed windows, and in the case of low-frequency compressor noise,active attenuation’s performance was significantly better than the passive insulation.
Journal ArticleDOI
High-Performance Hardware Design of Block LMS Adaptive Noise Canceller for In-Ear Headphones
TL;DR: This article presents a high-performance hardware design of block least mean square adaptive noise canceller (ANC) for in-ear headphones applications based on distributed arithmetic, which stores filter partial products in look-up table (LUT).
References
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Book
Active Noise Control Systems: Algorithms and DSP Implementations
Sen M. Kuo,Dennis R. Morgan +1 more
TL;DR: For practicing engineers, researchers, and advanced students in signal processing, Active Noise Control Systems: Algorithms and DSP Implementations will serve as a comprehensive, state-of-the-art text/reference on this important and rapidly changing area of signal processing.
Book
Signal Processing for Active Control
TL;DR: Signal Processing for Active Control as mentioned in this paper presents a unified approach to techniques that are used in the analysis and implementation of different active control systems and includes practical examples at the end of each chapter to illustrate the use of various approaches.
Patent
Active control of noise and vibration
TL;DR: An active system for controlling vibration or sound includes a method for limiting the output gain G from a gradient descent algorithm, such as an LMS algorithm, according to the relationship ##EQU1## and reducing one of first and second filter weights W1 and W0 such that the output canceling signal is never saturated.
Book
Active Control of Noise and Vibration
Colin H. Hansen,Scott D. Snyder +1 more
TL;DR: In this article, the authors present a review of acoustics and vibration in modern control systems, including feedback control of flexable structures described in terms of modes, and a few electronic implementation issues.
Journal ArticleDOI
An analysis of multiple correlation cancellation loops with a filter in the auxiliary path
TL;DR: An analysis of this technique is extended to the case when a linear filter appears in the auxiliary signal path and a general solution to this problem is obtained.