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In this paper, we study training of automatic speech recognition system in a weakly supervised setting where the order of words in transcript labels of the audio training data is not known. We train a word-level acoustic model which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-20 Vineel Pratap , Qiantong Xu , Tatiana Likhomanenko , Gabriel Synnaeve , Ronan Collobert

One solution to automatic speech recognition (ASR) of overlapping speakers is to separate speech and then perform ASR on the separated signals. Commonly, the separator produces artefacts which often degrade ASR performance. Addressing this…

Relating speech to EEG holds considerable importance but is challenging. In this study, a deep convolutional network was employed to extract spatiotemporal features from EEG data. Self-supervised speech representation and contextual text…

Signal Processing · Electrical Eng. & Systems 2024-02-02 Bo Wang , Xiran Xu , Zechen Zhang , Haolin Zhu , YuJie Yan , Xihong Wu , Jing Chen

Automatic speech recognition (ASR) models with low-footprint are increasingly being deployed on edge devices for conversational agents, which enhances privacy. We study the problem of federated continual incremental learning for recurrent…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-22 Milind Rao , Gopinath Chennupati , Gautam Tiwari , Anit Kumar Sahu , Anirudh Raju , Ariya Rastrow , Jasha Droppo

Discrete speech tokens have gained attention for their storage efficiency and integration with Large Language Models (LLMs). They are commonly categorized into acoustic and semantic tokens, with the latter being more advantageous for…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-04 Mohan Shi , Natarajan Balaji Shankar , Kaiyuan Zhang , Zilai Wang , Abeer Alwan

Attention-based encoder-decoder architectures such as Listen, Attend, and Spell (LAS), subsume the acoustic, pronunciation and language model components of a traditional automatic speech recognition (ASR) system into a single neural…

Self-Supervised Learning (SSL) has demonstrated strong performance in speech processing, particularly in automatic speech recognition. In this paper, we explore an SSL pretraining framework that leverages masked language modeling with…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-03 Aleksandr Kutsakov , Alexandr Maximenko , Georgii Gospodinov , Pavel Bogomolov , Fyodor Minkin

Automated heart sounds classification is a much-required diagnostic tool in the view of increasing incidences of heart related diseases worldwide. In this study, we conduct a comprehensive study of heart sounds classification by using…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Balagopal Unnikrishnan , Pranshu Ranjan Singh , Xulei Yang , Matthew Chin Heng Chua

Recognition of speech, and in particular the ability to generalize and learn from small sets of labelled examples like humans do, depends on an appropriate representation of the acoustic input. We formulate the problem of finding robust…

Unsupervised learning has grown in popularity because of the difficulty of collecting annotated data and the development of modern frameworks that allow us to learn from unlabeled data. Existing studies, however, either disregard variations…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Yi-Zhan Xu , Chih-Yao Chen , Cheng-Te Li

Automatic speech recognition (ASR) outcomes serve as input for downstream tasks, substantially impacting the satisfaction level of end-users. Hence, the diagnosis and enhancement of the vulnerabilities present in the ASR model bear…

Computation and Language · Computer Science 2024-01-29 Seonmin Koo , Chanjun Park , Jinsung Kim , Jaehyung Seo , Sugyeong Eo , Hyeonseok Moon , Heuiseok Lim

This paper proposes AS-ASR, a lightweight aphasia-specific speech recognition framework based on Whisper-tiny, tailored for low-resource deployment on edge devices. Our approach introduces a hybrid training strategy that systematically…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-03 Chen Bao , Chuanbing Huo , Qinyu Chen , Chang Gao

Automatic recognition of dysarthric speech remains a highly challenging task to date. Neuro-motor conditions and co-occurring physical disabilities create difficulty in large-scale data collection for ASR system development. Adapting SSL…

Sound · Computer Science 2024-01-02 Huimeng Wang , Zengrui Jin , Mengzhe Geng , Shujie Hu , Guinan Li , Tianzi Wang , Haoning Xu , Xunying Liu

In reverberant conditions with multiple concurrent speakers, each microphone acquires a mixture signal of multiple speakers at a different location. In over-determined conditions where the microphones out-number speakers, we can narrow down…

Sound · Computer Science 2023-10-31 Zhong-Qiu Wang , Shinji Watanabe

Self-supervised learning (SSL) based speech pre-training has attracted much attention for its capability of extracting rich representations learned from massive unlabeled data. On the other hand, the use of weakly-supervised data is less…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-30 Wangyou Zhang , Yanmin Qian

This paper describes our NPU-ASLP system for the Audio-Visual Diarization and Recognition (AVDR) task in the Multi-modal Information based Speech Processing (MISP) 2022 Challenge. Specifically, the weighted prediction error (WPE) and guided…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-14 Pengcheng Guo , He Wang , Bingshen Mu , Ao Zhang , Peikun Chen

Despite the growing interest in unsupervised learning, extracting meaningful knowledge from unlabelled audio remains an open challenge. To take a step in this direction, we recently proposed a problem-agnostic speech encoder (PASE), that…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-21 Mirco Ravanelli , Jianyuan Zhong , Santiago Pascual , Pawel Swietojanski , Joao Monteiro , Jan Trmal , Yoshua Bengio

In this paper we first demonstrate continuous noisy speech recognition using electroencephalography (EEG) signals on English vocabulary using different types of state of the art end-to-end automatic speech recognition (ASR) models, we…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-06 Gautam Krishna , Yan Han , Co Tran , Mason Carnahan , Ahmed H Tewfik

In the FAME! project, we aim to develop an automatic speech recognition (ASR) system for Frisian-Dutch code-switching (CS) speech extracted from the archives of a local broadcaster with the ultimate goal of building a spoken document…

Computation and Language · Computer Science 2018-10-24 Emre Yılmaz , Mitchell McLaren , Henk van den Heuvel , David A. van Leeuwen

Overlapping speech remains a major challenge for automatic speech recognition (ASR) in real-world applications, particularly in broadcast media with dynamic, multi-speaker interactions. We propose a light-weight, target-speaker-based…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-26 Aleš Pražák , Marie Kunešová , Josef Psutka
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