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State-of-the-art Automatic Speech Recognition (ASR) systems are known to exhibit disparate performance on varying speech accents. To improve performance on a specific target accent, a commonly adopted solution is to finetune the ASR model…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-18 Suraj Kothawade , Anmol Mekala , Chandra Sekhara D , Mayank Kothyari , Rishabh Iyer , Ganesh Ramakrishnan , Preethi Jyothi

We present a novel approach centered on the decoding stage of Automatic Speech Recognition (ASR) that enhances multilingual performance, especially for low-resource languages. It utilizes a cross-lingual embedding clustering method to…

Computation and Language · Computer Science 2025-01-30 Zhengdong Yang , Qianying Liu , Sheng Li , Fei Cheng , Chenhui Chu

End-to-end automatic speech recognition (ASR) can achieve promising performance with large-scale training data. However, it is known that domain mismatch between training and testing data often leads to a degradation of recognition…

Sound · Computer Science 2021-06-10 Wenxin Hou , Jindong Wang , Xu Tan , Tao Qin , Takahiro Shinozaki

The use of synthetic speech as data augmentation is gaining increasing popularity in fields such as automatic speech recognition and speech classification tasks. Despite novel text-to-speech systems with voice cloning capabilities, that…

Sound · Computer Science 2024-09-20 Sebastião Quintas , Isabelle Ferrané , Thomas Pellegrini

This study investigates the efficacy of data augmentation techniques for low-resource automatic speech recognition (ASR), focusing on two endangered Austronesian languages, Amis and Seediq. Recognizing the potential of self-supervised…

Computation and Language · Computer Science 2025-10-01 Yao-Fei Cheng , Li-Wei Chen , Hung-Shin Lee , Hsin-Min Wang

Automatic Speech Recognition (ASR) is increasingly used in applications involving child speech, such as language learning and literacy acquisition. However, the effectiveness of such applications is limited by high ASR error rates. The…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-23 Gus Lathouwers , Lingyun Gao , Catia Cucchiarini , Helmer Strik

Speech processing systems currently do not support the vast majority of languages, in part due to the lack of data in low-resource languages. Cross-lingual transfer offers a compelling way to help bridge this digital divide by incorporating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-03 Peter Wu , Jiatong Shi , Yifan Zhong , Shinji Watanabe , Alan W Black

Typical ASR systems segment the input audio into utterances using purely acoustic information, which may not resemble the sentence-like units that are expected by conventional machine translation (MT) systems for Spoken Language…

Computation and Language · Computer Science 2021-04-19 David Wan , Chris Kedzie , Faisal Ladhak , Elsbeth Turcan , Petra Galuščáková , Elena Zotkina , Zhengping Jiang , Peter Bell , Kathleen McKeown

Although Automatic Speech Recognition (ASR) systems have achieved human-like performance for a few languages, the majority of the world's languages do not have usable systems due to the lack of large speech datasets to train these models.…

Computation and Language · Computer Science 2022-02-28 Hemant Yadav , Sunayana Sitaram

Developing Automatic Speech Recognition (ASR) for low-resource languages is a challenge due to the small amount of transcribed audio data. For many such languages, audio and text are available separately, but not audio with transcriptions.…

Computation and Language · Computer Science 2022-07-21 Nathaniel Robinson , Perez Ogayo , Swetha Gangu , David R. Mortensen , Shinji Watanabe

This paper presents a novel multistage fine-tuning strategy designed to enhance automatic speech recognition (ASR) performance in low-resource languages using OpenAI's Whisper model. In this approach we aim to build ASR model for languages…

Computation and Language · Computer Science 2024-11-08 Leena G Pillai , Kavya Manohar , Basil K Raju , Elizabeth Sherly

Contextual biasing is essential to improving the recognition of rare and domain-specific words in an automatic speech recognition (ASR) system. While numerous methods have been proposed in recent years, most of them focus on offline…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-20 Kai-Chen Tsai , Tien-Hong Lo , Yun-Ting Sun , Berlin Chen

In this paper, we propose a self-training approach for automatic speech recognition (ASR) for low-resource settings. While self-training approaches have been extensively developed and evaluated for high-resource languages such as English,…

Computation and Language · Computer Science 2023-08-11 Satwinder Singh , Feng Hou , Ruili Wang

This paper introduces three self-contained data augmentation methods for low-resource Automatic Speech Recognition (ASR). Our techniques first generate novel text--using gloss-based replacement, random replacement, or an LLM-based…

Computation and Language · Computer Science 2026-01-21 Katsumi Ibaraki , David Chiang

Speaker-attributed automatic speech recognition (SA-ASR) in multi-party meeting scenarios is one of the most valuable and challenging ASR task. It was shown that single-channel frame-level diarization with serialized output training…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-03 Mohan Shi , Jie Zhang , Zhihao Du , Fan Yu , Qian Chen , Shiliang Zhang , Li-Rong Dai

Bootstrapping speech recognition on limited data resources has been an area of active research for long. The recent transition to all-neural models and end-to-end (E2E) training brought along particular challenges as these models are known…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-21 Manuel Giollo , Deniz Gunceler , Yulan Liu , Daniel Willett

Automated speaking assessment (ASA) typically involves automatic speech recognition (ASR) and hand-crafted feature extraction from the ASR transcript of a learner's speech. Recently, self-supervised learning (SSL) has shown stellar…

Sound · Computer Science 2025-03-04 Tien-Hong Lo , Fu-An Chao , Tzu-I Wu , Yao-Ting Sung , Berlin Chen

In this paper, we present a new open source toolkit for speech recognition, named CAT (CTC-CRF based ASR Toolkit). CAT inherits the data-efficiency of the hybrid approach and the simplicity of the E2E approach, providing a full-fledged…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-07 Keyu An , Hongyu Xiang , Zhijian Ou

Speaker adaptation, which involves cloning voices from unseen speakers in the Text-to-Speech task, has garnered significant interest due to its numerous applications in multi-media fields. Despite recent advancements, existing methods often…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-09 Ruibo Fu , Xin Qi , Zhengqi Wen , Jianhua Tao , Tao Wang , Chunyu Qiang , Zhiyong Wang , Yi Lu , Xiaopeng Wang , Shuchen Shi , Yukun Liu , Xuefei Liu , Shuai Zhang

Self-supervised learning (SSL) has been able to leverage unlabeled data to boost the performance of automatic speech recognition (ASR) models when we have access to only a small amount of transcribed speech data. However, this raises the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-06 Reem Gody , David Harwath