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Extracting multi-scale information is key to semantic segmentation. However, the classic convolutional neural networks (CNNs) encounter difficulties in achieving multi-scale information extraction: expanding convolutional kernel incurs the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Mo Zhang , Jie Zhao , Xiang Li , Li Zhang , Quanzheng Li

This work is an improved system that we submitted to task 1 of DCASE2023 challenge. We propose a method of low-complexity acoustic scene classification by a parallel attention-convolution network which consists of four modules, including…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-13 Yanxiong Li , Jiaxin Tan , Guoqing Chen , Jialong Li , Yongjie Si , Qianhua He

Automatic Modulation Classification (AMC) is a signal processing technique widely used at the physical layer of wireless systems to enhance spectrum utilization efficiency. In this work, we propose a fast and accurate AMC system, termed…

Signal Processing · Electrical Eng. & Systems 2025-04-14 Faheem Ur Rehman , Qamar Abbas , M. Karam Shehzad

In this work we propose approaches to effectively transfer knowledge from weakly labeled web audio data. We first describe a convolutional neural network (CNN) based framework for sound event detection and classification using weakly…

Sound · Computer Science 2018-09-10 Anurag Kumar , Maksim Khadkevich , Christian Fugen

Neural vocoders have recently demonstrated high quality speech synthesis, but typically require a high computational complexity. LPCNet was proposed as a way to reduce the complexity of neural synthesis by using linear prediction (LP) to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-31 Krishna Subramani , Jean-Marc Valin , Umut Isik , Paris Smaragdis , Arvindh Krishnaswamy

Convolutional neural networks (CNN) have shown promising results for end-to-end speech recognition, albeit still behind other state-of-the-art methods in performance. In this paper, we study how to bridge this gap and go beyond with a novel…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Wei Han , Zhengdong Zhang , Yu Zhang , Jiahui Yu , Chung-Cheng Chiu , James Qin , Anmol Gulati , Ruoming Pang , Yonghui Wu

We design an online end-to-end speech recognition system based on Time-Depth Separable (TDS) convolutions and Connectionist Temporal Classification (CTC). We improve the core TDS architecture in order to limit the future context and hence…

We present Accel, a novel semantic video segmentation system that achieves high accuracy at low inference cost by combining the predictions of two network branches: (1) a reference branch that extracts high-detail features on a reference…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Samvit Jain , Xin Wang , Joseph Gonzalez

Recent studies in image classification have demonstrated a variety of techniques for improving the performance of Convolutional Neural Networks (CNNs). However, attempts to combine existing techniques to create a practical model are still…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Jungkyu Lee , Taeryun Won , Tae Kwan Lee , Hyemin Lee , Geonmo Gu , Kiho Hong

Electrocardiogram (ECG) interpretation is essential for diagnosing a wide range of cardiac abnormalities. While deep learning has shown strong potential for automating ECG classification, many existing models rely on large, computationally…

In this paper, we propose a model for the Environment Sound Classification Task (ESC) that consists of multiple feature channels given as input to a Deep Convolutional Neural Network (CNN) with Attention mechanism. The novelty of the paper…

Sound · Computer Science 2020-12-09 Jivitesh Sharma , Ole-Christoffer Granmo , Morten Goodwin

In this work, we investigate the value of employing deep learning for the task of wireless signal modulation recognition. Recently in [1], a framework has been introduced by generating a dataset using GNU radio that mimics the imperfections…

Machine Learning · Computer Science 2018-01-08 Xiaoyu Liu , Diyu Yang , Aly El Gamal

Over the past two decades, CNN architectures have produced compelling models of sound perception and cognition, learning hierarchical organizations of features. Analogous to successes in computer vision, audio feature classification can be…

Sound · Computer Science 2025-05-13 Prateek Verma , Jonathan Berger

This paper presents our latest investigation on Densely Connected Convolutional Networks (DenseNets) for acoustic modelling (AM) in automatic speech recognition. DenseN-ets are very deep, compact convolutional neural networks, which have…

Computation and Language · Computer Science 2018-08-13 Chia Yu Li , Ngoc Thang Vu

Artificial sound event detection (SED) has the aim to mimic the human ability to perceive and understand what is happening in the surroundings. Nowadays, Deep Learning offers valuable techniques for this goal such as Convolutional Neural…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-26 Fabio Vesperini , Leonardo Gabrielli , Emanuele Principi , Stefano Squartini

Residual learning is a recently proposed learning framework to facilitate the training of very deep neural networks. Residual blocks or units are made of a set of stacked layers, where the inputs are added back to their outputs with the aim…

Convolutional Neural Networks (CNNs) have proven to be extremely accurate for image recognition, even outperforming human recognition capability. When deployed on battery-powered mobile devices, efficient computer architectures are required…

Hardware Architecture · Computer Science 2020-10-05 Mehdi Ahmadi , Shervin Vakili , J. M. Pierre Langlois

Recent studies focus on developing efficient systems for acoustic scene classification (ASC) using convolutional neural networks (CNNs), which typically consist of consecutive kernels. This paper highlights the benefits of using separate…

Sound · Computer Science 2024-05-30 Yiqiang Cai , Peihong Zhang , Shengchen Li

In this paper, we propose a novel Convolutional Neural Network (CNN) architecture for learning multi-scale feature representations with good tradeoffs between speed and accuracy. This is achieved by using a multi-branch network, which has…

Computer Vision and Pattern Recognition · Computer Science 2019-08-01 Chun-Fu Chen , Quanfu Fan , Neil Mallinar , Tom Sercu , Rogerio Feris

Environmental sound classification (ESC) is an important and challenging problem. In contrast to speech, sound events have noise-like nature and may be produced by a wide variety of sources. In this paper, we propose to use a novel deep…

Sound · Computer Science 2018-08-28 Zhichao Zhang , Shugong Xu , Shan Cao , Shunqing Zhang