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Recent progress in speech processing has highlighted that high-quality performance across languages requires substantial training data for each individual language. While existing multilingual datasets cover many languages, they often…

Computation and Language · Computer Science 2025-10-28 Samuel Pfisterer , Florian Grötschla , Luca A. Lanzendörfer , Florian Yan , Roger Wattenhofer

Speech recognition models often obtain degraded performance when tested on speech with unseen accents. Domain-adversarial training (DAT) and multi-task learning (MTL) are two common approaches for building accent-robust ASR models. ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-11 Jialu Li , Vimal Manohar , Pooja Chitkara , Andros Tjandra , Michael Picheny , Frank Zhang , Xiaohui Zhang , Yatharth Saraf

In this work, we develop new self-learning techniques with an attention-based sequence-to-sequence (seq2seq) model for automatic speech recognition (ASR). For untranscribed speech data, the hypothesis from an ASR system must be used as a…

Computation and Language · Computer Science 2021-12-23 Kenichi Kumatani , Dimitrios Dimitriadis , Yashesh Gaur , Robert Gmyr , Sefik Emre Eskimez , Jinyu Li , Michael Zeng

It is well known that the mismatch between training (source) and test (target) data distribution will significantly decrease the performance of acoustic scene classification (ASC) systems. To address this issue, domain adaptation (DA) is…

Sound · Computer Science 2021-05-24 Dongchao Yang , Helin Wang , Yuexian Zou

The performance of machine learning algorithms is known to be negatively affected by possible mismatches between training (source) and test (target) data distributions. In fact, this problem emerges whenever an acoustic scene classification…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-04 Alessandro Ilic Mezza , Emanuël A. P. Habets , Meinard Müller , Augusto Sarti

LLM-based automatic speech recognition models demonstrate strong performance by connecting audio encoders and LLMs. However, data scarcity of paired speech and transcription often hinders their adaptation to new domains, making text-only…

Sound · Computer Science 2026-05-15 Ryo Magoshi , Takashi Maekaku , Yusuke Shinohara

Automatic recognition of disordered and elderly speech remains a highly challenging task to date due to the difficulty in collecting such data in large quantities. This paper explores a series of approaches to integrate domain adapted SSL…

Sound · Computer Science 2023-06-23 Shujie Hu , Xurong Xie , Zengrui Jin , Mengzhe Geng , Yi Wang , Mingyu Cui , Jiajun Deng , Xunying Liu , Helen Meng

Large-scale training corpora have significantly improved the performance of ASR models. Unfortunately, due to the relative scarcity of data, Chinese accents and dialects remain a challenge for most ASR models. Recent advancements in…

Computation and Language · Computer Science 2025-06-17 Tianyi Xu , Hongjie Chen , Wang Qing , Lv Hang , Jian Kang , Li Jie , Zhennan Lin , Yongxiang Li , Xie Lei

Foundation models (FMs), that are trained on broad data at scale and are adaptable to a wide range of downstream tasks, have brought large interest in the research community. Benefiting from the diverse data sources such as different…

Computation and Language · Computer Science 2023-02-06 Bo Li , Dongseong Hwang , Zhouyuan Huo , Junwen Bai , Guru Prakash , Tara N. Sainath , Khe Chai Sim , Yu Zhang , Wei Han , Trevor Strohman , Francoise Beaufays

Self-supervised learning (SSL) models have achieved considerable improvements in automatic speech recognition (ASR). In addition, ASR performance could be further improved if the model is dedicated to audio content information learning…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-08 Genshun Wan , Tan Liu , Hang Chen , Jia Pan , Cong Liu , Zhongfu Ye

Self- and semi-supervised learning methods have been actively investigated to reduce labeled training data or enhance the model performance. However, the approach mostly focus on in-domain performance for public datasets. In this study, we…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-17 Dongseong Hwang , Ananya Misra , Zhouyuan Huo , Nikhil Siddhartha , Shefali Garg , David Qiu , Khe Chai Sim , Trevor Strohman , Françoise Beaufays , Yanzhang He

Source separation can improve automatic speech recognition (ASR) under multi-party meeting scenarios by extracting single-speaker signals from overlapped speech. Despite the success of self-supervised learning models in single-channel…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-04 Yuang Li , Xianrui Zheng , Philip C. Woodland

Automatic speech recognition is a difficult problem in pattern recognition because several sources of variability exist in the speech input like the channel variations, the input might be clean or noisy, the speakers may have different…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-09 Rupam Ojha , C Chandra Sekhar

Current leading mispronunciation detection and diagnosis (MDD) systems achieve promising performance via end-to-end phoneme recognition. One challenge of such end-to-end solutions is the scarcity of human-annotated phonemes on natural L2…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-13 Mu Yang , Kevin Hirschi , Stephen D. Looney , Okim Kang , John H. L. Hansen

Recent advances in automatic speech recognition (ASR) have combined speech encoders with large language models (LLMs) through projection, forming Speech LLMs with strong performance. However, adapting them to new domains remains…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-24 Yangui Fang , Jing Peng , Xu Li , Yu Xi , Chengwei Zhang , Guohui Zhong , Kai Yu

Large performance degradation is often observed for speaker ver-ification systems when applied to a new domain dataset. Givenan unlabeled target-domain dataset, unsupervised domain adaptation(UDA) methods, which usually leverage adversarial…

Sound · Computer Science 2021-09-01 Zhengyang Chen , Shuai Wang , Yanmin Qian

We present a method for transferring pre-trained self-supervised (SSL) speech representations to multiple languages. There is an abundance of unannotated speech, so creating self-supervised representations from raw audio and fine-tuning on…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-08 Samuel Kessler , Bethan Thomas , Salah Karout

IR models using a pretrained language model significantly outperform lexical approaches like BM25. In particular, SPLADE, which encodes texts to sparse vectors, is an effective model for practical use because it shows robustness to…

Computation and Language · Computer Science 2022-11-11 Hiroki Iida , Naoaki Okazaki

The recent success of neural machine translation models relies on the availability of high quality, in-domain data. Domain adaptation is required when domain-specific data is scarce or nonexistent. Previous unsupervised domain adaptation…

Computation and Language · Computer Science 2019-08-29 Zi-Yi Dou , Junjie Hu , Antonios Anastasopoulos , Graham Neubig

Nowadays, research in speech technologies has gotten a lot out thanks to recently created public domain corpora that contain thousands of recording hours. These large amounts of data are very helpful for training the new complex models…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-12 Guillermo Cámbara , Alex Peiró-Lilja , Mireia Farrús , Jordi Luque