Online adaptive identification of multichannel systems for audio applications.

J Acoust Soc Am

Laboratoire d'Acoustique de l'Université du Mans (LAUM), Unité Mixte de Recherche 6613, Institut d'Acoustique-Graduate School (IA-GS), Centre National de la Recherche Scientifique, Le Mans Université, France.

Published: January 2024


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Impulse responses (IRs) estimation of multi-input acoustic systems is a prerequisite for many audio applications. In this paper, an adaptive identification problem based on the Autostep algorithm is extended to the simultaneous estimation of room IRs for multiple input single output linear time invariant systems without any a priori information. To do so, the proposed algorithm is initially evaluated in a simulated room with several sound sources active at the same time. Finally, an experimental validation is proposed for the cases of a semi-anechoic chamber and an arbitrary room. Special attention is dedicated to the algorithm convergence behavior, considering different meta parameters settings. Results are eventually compared with the other normalized version of the least mean square algorithm.

Download full-text PDF

Source
http://dx.doi.org/10.1121/10.0024149DOI Listing

Publication Analysis

Top Keywords

adaptive identification
8
audio applications
8
online adaptive
4
identification multichannel
4
multichannel systems
4
systems audio
4
applications impulse
4
impulse responses
4
responses irs
4
irs estimation
4

Similar Publications

Cerrado ash reduces volatile emissions from faeces but does not influence the olfactory responses of the dung beetles.

Naturwissenschaften

September 2025

Laboratório de Ecologia E Conservação de Invertebrados, LECIN, Departamento de Ecologia E Conservação, Instituto de Ciências Naturais, Universidade Federal de Lavras, PO Box 3037, CEP 37.203-202, Lavras, MG, Brasil.

Fire is a key natural disturbance influencing physical, chemical, and biological processes in the Cerrado. Ash, a fire byproduct, may significantly influence soil macrofauna through its chemical properties. Dung beetles (Scarabaeinae), critical components of Cerrado soil macrofauna, provide key ecological functions and services.

View Article and Find Full Text PDF

The COVID-19 pandemic remains a global health crisis, with successive SARS-CoV-2 variants exhibiting enhanced transmissibility and immune evasion. Notably, the Omicron variant harbors extensive mutations in the spike protein's receptor-binding domain (RBD), altering viral fitness. While temperature is a critical environmental factor modulating viral stability and transmission, its molecular-level effects on variant-specific RBD-human angiotensin-converting enzyme 2 (hACE2) interactions remain underexplored.

View Article and Find Full Text PDF

Background: Smell tests in children need to be standardized and validated, include odors familiar to children, and be defined by age-dependent standards. This study aimed to adapt the Sniffin Kids Test (SKT) for Polish children and conduct validation and evaluation of the Sniffin Kids Poland Test (SKPOL).

Methodology: The study included 382 children (4-14 years old) recruited in Poland, who were allocated into healthy (n=343) and sick (with subjective olfactory disorders, n=39), divided into 3 age subgroups, but also 13 anosmic children with Kallmann syndrome (KS) and olfactory bulb aplasia.

View Article and Find Full Text PDF

Biomarkers, isolation methods, and therapeutic implications of breast cancer stem cells.

Cancer Pathog Ther

September 2025

Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu, Sabah, 88400, Malaysia.

Breast cancer metastasis and relapse remain uncontrollable despite significant advancements in early diagnosis and treatment, resulting in increased mortality. Breast cancer is the most frequently diagnosed cancer in women worldwide and has become the leading cause of cancer-related deaths. Cancer stem cells (CSCs) may play significant roles in tumor initiation, maintenance, invasion, relapse, metastasis, and therapy resistance.

View Article and Find Full Text PDF

Postoperative shivering is a common complication following anesthesia, which can increase oxygen consumption, prolong recovery, and affect patient comfort and safety. Understanding its risk factors is important for improving postoperative outcomes and guiding preventive strategies. To investigate the associated risk factors for postoperative shivering after total knee arthroplasty (TKA) and to develop and validate a predictive model.

View Article and Find Full Text PDF