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Speech synthesis might hold the key to low-resource speech recognition. Data augmentation techniques have become an essential part of modern speech recognition training. Yet, they are simple, naive, and rarely reflect real-world conditions.…

Computation and Language · Computer Science 2020-12-25 Deblin Bagchi , Shannon Wotherspoon , Zhuolin Jiang , Prasanna Muthukumar

Form about four decades human beings have been dreaming of an intelligent machine which can master the natural speech. In its simplest form, this machine should consist of two subsystems, namely automatic speech recognition (ASR) and speech…

Sound · Computer Science 2013-05-08 Urmila Shrawankar , V. M. Thakare

Recent advances in automatic speech recognition (ASR) and speech enhancement have led to a widespread assumption that improving perceptual audio quality should directly benefit recognition accuracy. In this work, we rigorously examine…

Sound · Computer Science 2026-03-06 Akif Islam , Raufun Nahar , Md. Ekramul Hamid

Automatic speech recognition (ASR) systems degrade significantly under noisy conditions. Recently, speech enhancement (SE) is introduced as front-end to reduce noise for ASR, but it also suppresses some important speech information, i.e.,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-30 Yuchen Hu , Nana Hou , Chen Chen , Eng Siong Chng

Speech enhancement (SE) is usually required as a front end to improve the speech quality in noisy environments, while the enhanced speech might not be optimal for automatic speech recognition (ASR) systems due to speech distortion. On the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-27 Qiu-Shi Zhu , Jie Zhang , Zi-Qiang Zhang , Li-Rong Dai

While supervised quality predictors for synthesized speech have demonstrated strong correlations with human ratings, their requirement for in-domain labeled training data hinders their generalization ability to new domains. Unsupervised…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-08 Erica Cooper , Takuma Okamoto , Yamato Ohtani , Tomoki Toda , Hisashi Kawai

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

Recent breakthroughs in multi-talker ASR (MT-ASR) and speaker diarization (SD) rely on synthetic data to mitigate the scarcity of large-scale conversational recordings, yet the impact of specific simulation choices remains poorly…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-18 Alexander Polok , Ivan Medennikov , Jan Černocký , Shinji Watanabe , Lukáš Burget , Samuele Cornell

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

The awareness for biased ASR datasets or models has increased notably in recent years. Even for English, despite a vast amount of available training data, systems perform worse for non-native speakers. In this work, we improve an…

Computation and Language · Computer Science 2023-03-03 Philipp Klumpp , Pooja Chitkara , Leda Sarı , Prashant Serai , Jilong Wu , Irina-Elena Veliche , Rongqing Huang , Qing He

Modern machine learning models for audio tasks often exhibit superior performance on English and other well-resourced languages, primarily due to the abundance of available training data. This disparity leads to an unfair performance gap…

Computation and Language · Computer Science 2025-11-26 Wesley Bian , Xiaofeng Lin , Guang Cheng

End-to-end automatic speech recognition (ASR), unlike conventional ASR, does not have modules to learn the semantic representation from speech encoder. Moreover, the higher frame-rate of speech representation prevents the model to learn the…

Artificial Intelligence · Computer Science 2021-03-19 Md Akmal Haidar , Chao Xing , Mehdi Rezagholizadeh

The amount of articulatory data available for training deep learning models is much less compared to acoustic speech data. In order to improve articulatory-to-acoustic synthesis performance in these low-resource settings, we propose a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-19 Peter Wu , Bohan Yu , Kevin Scheck , Alan W Black , Aditi S. Krishnapriyan , Irene Y. Chen , Tanja Schultz , Shinji Watanabe , Gopala K. Anumanchipalli

Multilingual end-to-end models have shown great improvement over monolingual systems. With the development of pre-training methods on speech, self-supervised multilingual speech representation learning like XLSR has shown success in…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-08 Fenglin Ding , Genshun Wan , Pengcheng Li , Jia Pan , Cong Liu

Accented automatic speech recognition (ASR) often degrades due to the limited availability of accented training data. Prior work has explored accent modeling in low-resource settings, but existing approaches typically require minutes to…

Transfer learning from high-resource languages is known to be an efficient way to improve end-to-end automatic speech recognition (ASR) for low-resource languages. Pre-trained or jointly trained encoder-decoder models, however, do not share…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-12 Changhan Wang , Juan Pino , Jiatao Gu

Many existing works on voice conversion (VC) tasks use automatic speech recognition (ASR) models for ensuring linguistic consistency between source and converted samples. However, for the low-data resource domains, training a high-quality…

Sound · Computer Science 2023-05-25 Mayank Kumar Singh , Naoya Takahashi , Onoe Naoyuki

Dysarthric speech recognition faces challenges from severity variations and disparities relative to normal speech. Conventional approaches individually fine-tune ASR models pre-trained on normal speech per patient to prevent feature…

Sound · Computer Science 2025-08-27 Qing Xiao , Yingshan Peng , PeiPei Zhang

Automatic speech recognition systems have achieved remarkable performance on fluent speech but continue to degrade significantly when processing stuttered speech, a limitation that is particularly acute for low-resource languages like…

Computation and Language · Computer Science 2026-01-15 Fadhil Muhammad , Alwin Djuliansah , Adrian Aryaputra Hamzah , Kurniawati Azizah

In end-to-end automatic speech recognition system, one of the difficulties for language expansion is the limited paired speech and text training data. In this paper, we propose a novel method to generate augmented samples with unpaired…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-01 Eric Sun , Jinyu Li , Jian Xue , Yifan Gong