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Efficient audio feature extraction is critical for low-latency, resource-constrained speech recognition. Conventional preprocessing techniques, such as Mel Spectrogram, Perceptual Linear Prediction (PLP), and Learnable Spectrogram, achieve…

Sound · Computer Science 2025-10-28 Akshaya Rajesh , Pavithra Ananthasubramanian , Nagarajan Raghavan , Ankush Kumar

Although existing deep learning-based Ultra-Wide Band (UWB) channel estimation methods achieve high accuracy, their computational intensity clashes sharply with the resource constraints of low-cost edge devices. Motivated by this, this…

Emerging Technologies · Computer Science 2026-01-01 Youdong Zhang , Xu He , Xiaolin Meng

Deep neural networks have recently become a popular solution to keyword spotting systems, which enable the control of smart devices via voice. In this paper, we apply neural architecture search to search for convolutional neural network…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-27 Tong Mo , Yakun Yu , Mohammad Salameh , Di Niu , Shangling Jui

This paper introduces a 71.2-$\mu$W speech recognition accelerator designed for edge devices' real-time applications, emphasizing an ultra low power design. Achieved through algorithm and hardware co-optimizations, we propose a compact…

Hardware Architecture · Computer Science 2026-05-01 Chih-Chyau Yang , Tian-Sheuan Chang

This paper presents a novel approach to neuromorphic audio processing by integrating the strengths of Spiking Neural Networks (SNNs), Transformers, and high-performance computing (HPC) into the HPCNeuroNet architecture. Utilizing the Intel…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-22 Murat Isik , Hiruna Vishwamith , Kayode Inadagbo , I. Can Dikmen

This paper presents a neuromorphic system for cognitive load classification in a real-world setting, an Air Traffic Control (ATC) task, using a hardware implementation of Spiking Neural Networks (SNNs). Electroencephalogram (EEG) and…

Neural and Evolutionary Computing · Computer Science 2025-10-06 Jiahui An , Chonghao Cai , Olympia Gallou , Sara Irina Fabrikant , Giacomo Indiveri , Elisa Donati

Keyword Spotting (KWS) models on embedded devices should adapt fast to new user-defined words without forgetting previous ones. Embedded devices have limited storage and computational resources, thus, they cannot save samples or update…

Sound · Computer Science 2023-07-25 Umberto Michieli , Pablo Peso Parada , Mete Ozay

Spiking Neural Networks are attracting increased attention as a more energy-efficient alternative to traditional Artificial Neural Networks for edge computing. Neuromorphic computing can significantly reduce energy requirements. Here, we…

Neural and Evolutionary Computing · Computer Science 2025-10-16 Balázs Mészáros , James C. Knight , Jonathan Timcheck , Thomas Nowotny

In many speech-enabled human-machine interaction scenarios, user speech can overlap with the device playback audio. In these instances, the performance of tasks such as keyword-spotting (KWS) and device-directed speech detection (DDD) can…

Sound · Computer Science 2022-10-05 Samuele Cornell , Thomas Balestri , Thibaud Sénéchal

The goal of this work is to automatically determine whether and when a word of interest is spoken by a talking face, with or without the audio. We propose a zero-shot method suitable for in the wild videos. Our key contributions are: (1) a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-07 Liliane Momeni , Triantafyllos Afouras , Themos Stafylakis , Samuel Albanie , Andrew Zisserman

Keyword spotting in edge devices is becoming increasingly important as voice-activated assistants are widely used. However, its deployment is often limited by the extreme low-power constraints of the target embedded systems. Here, we…

Neural and Evolutionary Computing · Computer Science 2025-03-20 Alejandro Pequeño-Zurro , Lyes Khacef , Stefano Panzeri , Elisabetta Chicca

Keyword spotting (KWS) is a core human-machine-interaction front-end task for most modern intelligent assistants. Recently, a unified (UniKW-AT) framework has been proposed that adds additional capabilities in the form of audio tagging (AT)…

Sound · Computer Science 2023-03-06 Heinrich Dinkel , Yongqing Wang , Zhiyong Yan , Junbo Zhang , Yujun Wang

The keyword spotting (KWS) problem requires large amounts of real speech training data to achieve high accuracy across diverse populations. Utilizing large amounts of text-to-speech (TTS) synthesized data can reduce the cost and time…

Neuromorphic computing applies insights from neuroscience to uncover innovations in computing technology. In the brain, billions of interconnected neurons perform rapid computations at extremely low energy levels by leveraging properties…

Neural and Evolutionary Computing · Computer Science 2020-04-28 E. Paxon Frady , Garrick Orchard , David Florey , Nabil Imam , Ruokun Liu , Joyesh Mishra , Jonathan Tse , Andreas Wild , Friedrich T. Sommer , Mike Davies

Sign-language recognition has achieved substantial gains in classification accuracy in recent years; however, the latency and power requirements of most existing methods limit their suitability for real-time deployment. Neuromorphic sensing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Sarka Liskova , Olha Vedmedenko , Mazdak Fatahi , Matej Hoffmann , P. Michael Furlong , Giulia D Angelo

The intrinsic dynamics and event-driven nature of spiking neural networks (SNNs) make them excel in processing temporal information by naturally utilizing embedded time sequences as time steps. Recent studies adopting this approach have…

Machine Learning · Computer Science 2024-12-18 Jiaqi Wang , Liutao Yu , Liwei Huang , Chenlin Zhou , Han Zhang , Zhenxi Song , Min Zhang , Zhengyu Ma , Zhiguo Zhang

Computing-in-memory (CIM) has attracted significant attentions in recent years due to its massive parallelism and low power consumption. However, current CIM designs suffer from large area overhead of small CIM macros and bad programmablity…

Hardware Architecture · Computer Science 2022-05-04 Shu-Hung Kuo , Tian-Sheuan Chang

Neuromorphic computing holds the promise to achieve the energy efficiency and robust learning performance of biological neural systems. To realize the promised brain-like intelligence, it needs to solve the challenges of the neuromorphic…

Neural and Evolutionary Computing · Computer Science 2023-09-12 Huajin Tang , Pengjie Gu , Jayawan Wijekoon , MHD Anas Alsakkal , Ziming Wang , Jiangrong Shen , Rui Yan

Numerous methods have been proposed to enhance Keyword Spotting (KWS) in adult speech, but children's speech presents unique challenges for KWS systems due to its distinct acoustic and linguistic characteristics. This paper introduces a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-01 Subham Kutum , Abhijit Sinha , Hemant Kumar Kathania , Sudarsana Reddy Kadiri , Mahesh Chandra Govil

A keyword spotting (KWS) engine that is continuously running on device is exposed to various speech signals that are usually unseen before. It is a challenging problem to build a small-footprint and high-performing KWS model with robustness…

Sound · Computer Science 2024-08-27 Zhenyu Wang , Li Wan , Biqiao Zhang , Yiteng Huang , Shang-Wen Li , Ming Sun , Xin Lei , Zhaojun Yang