Results 121 to 130 of about 1,828 (248)

Integrating acoustic echo cancellation in LPC-based speech coders

, 2006
This paper presents a novel acoustic echo canceller (AEC) consisting of an adaptive FIR filter and a double-talk detector. By employing the widely used LPC-based speech coder for decorrelation, we develop a variable step-size decorrelation NLMS algorithm
Lin, Mangmang, Mangmang Lin, Yi, Peng, Li, Hui, Hu, Haijun, Peng Yi, Zhang, Zhijun, Hui Li, Zhijun Zhang, Haijun Hu   +9 more
core   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, Volume 38, Issue 36, 26 June 2026.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Gesturing While Writing: An Alternate Perspective on Mimetic Prosody

Critical Quarterly, EarlyView.
Paul Magee
wiley   +1 more source

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, Volume 38, Issue 32, 8 June 2026.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 more
wiley   +1 more source

Identificação de sistemas com resposta esparsa ao impulso utilizando transformada wavelet discreta parcial [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Ribas, Celso Henrique Herédias
core  

Client Experiences of Videocall‐Delivered Therapy During COVID‐19 Restrictions in Aotearoa New Zealand: A Qualitative Study

Counselling and Psychotherapy Research, Volume 26, Issue 2, June 2026.
ABSTRACT Aim Intermittent restrictions on personal movement were introduced in Aotearoa New Zealand in March 2020 in response to the COVID‐19 pandemic. As in‐person therapeutic appointments became unavailable, psychotherapy, psychology and counselling services were increasingly delivered by phone or online, often via videocall. While there is a growing
Liesje Donkin, Amelia Jones, Kirsten Van Kessel   +2 more
wiley   +1 more source

Variable Forgetting Factor RLS Adaptive Algorithms Based on Line Search Methods

Applied Sciences
Recursive least-squares (RLS) adaptive algorithms are capable of outperforming least-mean-square (LMS) methods for the identification of long-length impulse responses due to their ability to mitigate the high correlation properties of input signals, such
Radu-Andrei Otopeleanu, Cristian-Lucian Stanciu, Constantin Paleologu, Jacob Benesty   +3 more
doaj   +1 more source

On the Optimality of Subband Adaptive Filtering

, 1999
In this paper, we derive a polyphase analysis to determine the optimum filters in a subband adaptive filter (SAF) system. The structure of this optimum solution deviates from the standard SAF approach and presents its best possible solution only as an ...
Weiss, S, Stewart, R W
core  

Design of Two‐Segment Constant‐Force Compliant Mechanisms via Stiffness‐Matched Parallel Integration

Engineering Reports, Volume 8, Issue 6, June 2026.
This work presents a novel design for two‐segment constant‐force compliant mechanisms that achieve dual‐stage zero‐stiffness via stiffness‐matched parallel integration. Experimental results demonstrate constant forces of 4 N and 20 N with less than 5% variation, enabling extended operational ranges for precision applications such as robotic ...
Junfeng Hu, Xiwei Jiang
wiley   +1 more source

Exact Equality of the MSEs for Two Types of Nonlinear Adaptive Systems: Saturation and Dead-Zone Types

IEEE Access
Adaptive signal processing systems, commonly utilized in applications such as active noise control and acoustic echo cancellation, often encompass nonlinearities due to hardware components such as loudspeakers, microphones, and amplifiers.
Seiji Miyoshi, Yua Yamaguchi
doaj   +1 more source