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This work presents a seemingly simple but effective technique to improve low-resource ASR systems for phonetic languages. By identifying sets of acoustically similar graphemes in these languages, we first reduce the output alphabet of the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-13 Anuj Diwan , Preethi Jyothi

We evaluate the character-level translation method for neural semantic parsing on a large corpus of sentences annotated with Abstract Meaning Representations (AMRs). Using a sequence-to-sequence model, and some trivial preprocessing and…

Computation and Language · Computer Science 2017-10-10 Rik van Noord , Johan Bos

User studies have shown that reducing the latency of our simultaneous lecture translation system should be the most important goal. We therefore have worked on several techniques for reducing the latency for both components, the automatic…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-24 Thai Son Nguyen , Jan Niehues , Eunah Cho , Thanh-Le Ha , Kevin Kilgour , Markus Muller , Matthias Sperber , Sebastian Stueker , Alex Waibel

Intra-sentential code-switching (CS) refers to the alternation between languages that happens within a single utterance and is a significant challenge for Automatic Speech Recognition (ASR) systems. For example, when a Vietnamese speaker…

Computation and Language · Computer Science 2025-01-14 The Chuong Chu , Vu Tuan Dat Pham , Kien Dao , Hoang Nguyen , Quoc Hung Truong

This paper presents a unified multi-speaker encoder (UME), a novel architecture that jointly learns representations for speaker diarization (SD), speech separation (SS), and multi-speaker automatic speech recognition (ASR) tasks using a…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-14 Muhammad Shakeel , Yui Sudo , Yifan Peng , Chyi-Jiunn Lin , Shinji Watanabe

Despite the significant progress in end-to-end (E2E) automatic speech recognition (ASR), E2E ASR for low resourced code-switching (CS) speech has not been well studied. In this work, we describe an E2E ASR pipeline for the recognition of CS…

Computation and Language · Computer Science 2019-10-01 Xianghu Yue , Grandee Lee , Emre Yılmaz , Fang Deng , Haizhou Li

We propose a first step toward multilingual end-to-end automatic speech recognition (ASR) by integrating knowledge about speech articulators. The key idea is to leverage a rich set of fundamental units that can be defined "universally"…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-19 Hao Yen , Sabato Marco Siniscalchi , Chin-Hui Lee

Multi-speaker automatic speech recognition (ASR) is crucial for many real-world applications, but it requires dedicated modeling techniques. Existing approaches can be divided into modular and end-to-end methods. Modular approaches separate…

Computation and Language · Computer Science 2023-06-22 Simon Berger , Peter Vieting , Christoph Boeddeker , Ralf Schlüter , Reinhold Haeb-Umbach

Transliteration has emerged as a promising means to bridge the gap between various languages in multilingual NLP, showing promising results especially for languages using non-Latin scripts. We investigate the degree to which shared script,…

Computation and Language · Computer Science 2026-03-25 Haeji Jung , Jinju Kim , Kyungjin Kim , Youjeong Roh , David R. Mortensen

Off-the-shelf pre-trained Automatic Speech Recognition (ASR) systems are an increasingly viable service for companies of any size building speech-based products. While these ASR systems are trained on large amounts of data, domain mismatch…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-18 Anirudh Mani , Shruti Palaskar , Nimshi Venkat Meripo , Sandeep Konam , Florian Metze

End-to-end (E2E) automatic speech recognition (ASR) systems directly map acoustics to words using a unified model. Previous works mostly focus on E2E training a single model which integrates acoustic and language model into a whole.…

Computation and Language · Computer Science 2018-03-06 Zhehuai Chen , Qi Liu , Hao Li , Kai Yu

This paper presents an audio visual automatic speech recognition (AV-ASR) system using a Transformer-based architecture. We particularly focus on the scene context provided by the visual information, to ground the ASR. We extract…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-01 Georgios Paraskevopoulos , Srinivas Parthasarathy , Aparna Khare , Shiva Sundaram

We propose a cross-modal transformer-based neural correction models that refines the output of an automatic speech recognition (ASR) system so as to exclude ASR errors. Generally, neural correction models are composed of encoder-decoder…

Computation and Language · Computer Science 2021-07-06 Tomohiro Tanaka , Ryo Masumura , Mana Ihori , Akihiko Takashima , Takafumi Moriya , Takanori Ashihara , Shota Orihashi , Naoki Makishima

We propose a novel end-to-end multi-talker automatic speech recognition (ASR) framework that enables both multi-speaker (MS) ASR and target-speaker (TS) ASR. Our proposed model is trained in a fully end-to-end manner, incorporating speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-20 Jinhan Wang , Weiqing Wang , Kunal Dhawan , Taejin Park , Myungjong Kim , Ivan Medennikov , He Huang , Nithin Koluguri , Jagadeesh Balam , Boris Ginsburg

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

Recognizing overlapping speech from multiple speakers in conversational scenarios is one of the most challenging problem for automatic speech recognition (ASR). Serialized output training (SOT) is a classic method to address multi-talker…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-02 Mohan Shi , Zengrui Jin , Yaoxun Xu , Yong Xu , Shi-Xiong Zhang , Kun Wei , Yiwen Shao , Chunlei Zhang , Dong Yu

Despite the impressive performance recently achieved by automatic speech recognition (ASR), we observe two primary challenges that hinder its broader applications: (1) The difficulty of introducing scalability into the model to support more…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-29 Zhongzhi Yu , Yang Zhang , Kaizhi Qian , Yonggan Fu , Yingyan Lin

Automatic Speech Recognition (ASR) has reached impressive accuracy for high-resource languages, yet its utility in linguistic fieldwork remains limited. Recordings collected in fieldwork contexts present unique challenges, including…

Computation and Language · Computer Science 2025-06-25 Siyu Liang , Gina-Anne Levow

While significant improvements have been made in recent years in terms of end-to-end automatic speech recognition (ASR) performance, such improvements were obtained through the use of very large neural networks, unfit for embedded use on…

Computation and Language · Computer Science 2020-03-25 Alex Bie , Bharat Venkitesh , Joao Monteiro , Md. Akmal Haidar , Mehdi Rezagholizadeh

Chinese Automatic Speech Recognition (ASR) error correction presents significant challenges due to the Chinese language's unique features, including a large character set and borderless, morpheme-based structure. Current mainstream models…

Computation and Language · Computer Science 2023-08-08 Jiaxin Fan , Yong Zhang , Hanzhang Li , Jianzong Wang , Zhitao Li , Sheng Ouyang , Ning Cheng , Jing Xiao