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Related papers: RASR2: The RWTH ASR Toolkit for Generic Sequence-t…

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The recurrent neural network transducer (RNN-T) has recently become the mainstream end-to-end approach for streaming automatic speech recognition (ASR). To estimate the output distributions over subword units, RNN-T uses a fully connected…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-26 Chao Zhang , Bo Li , Zhiyun Lu , Tara N. Sainath , Shuo-yiin Chang

Speech-to-text translation pertains to the task of converting speech signals in a language to text in another language. It finds its application in various domains, such as hands-free communication, dictation, video lecture transcription,…

Computation and Language · Computer Science 2024-06-11 Nivedita Sethiya , Chandresh Kumar Maurya

Code-switching deals with alternative languages in communication process. Training end-to-end (E2E) automatic speech recognition (ASR) systems for code-switching is especially challenging as code-switching training data are always…

Computation and Language · Computer Science 2022-06-30 Shuai Zhang , Jiangyan Yi , Zhengkun Tian , Jianhua Tao , Yu Ting Yeung , Liqun Deng

Automatic Speech Recognition (ASR) has undergone a profound transformation over the past decade, driven by advances in deep learning. This survey provides a comprehensive overview of the modern era of ASR, charting its evolution from…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-16 Md. Nayeem , Md Shamse Tabrej , Kabbojit Jit Deb , Shaonti Goswami , Md. Azizul Hakim

Code-Switching (CS) multilingual Automatic Speech Recognition (ASR) models can transcribe speech containing two or more alternating languages during a conversation. This paper proposes (1) a new method for creating code-switching ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-19 Kunal Dhawan , Dima Rekesh , Boris Ginsburg

Motivated by a growing research interest into automatic speech recognition (ASR), and the growing body of work for languages in which code-switching (CS) often occurs, we present a systematic literature review of code-switching in…

Computation and Language · Computer Science 2025-07-11 Maha Tufail Agro , Atharva Kulkarni , Karima Kadaoui , Zeerak Talat , Hanan Aldarmaki

Neural sequence-to-sequence systems deliver state-of-the-art performance for automatic speech recognition (ASR). When using appropriate modeling units, e.g., byte-pair encoded characters, these systems are in principal open vocabulary…

Computation and Language · Computer Science 2021-07-07 Christian Huber , Juan Hussain , Sebastian Stüker , Alexander Waibel

Automatic speech recognition (ASR) performance has improved drastically in recent years, mainly enabled by self-supervised learning (SSL) based acoustic models such as wav2vec2 and large-scale multi-lingual training like Whisper. A huge…

In this paper, we investigate the benefit that off-the-shelf word embedding can bring to the sequence-to-sequence (seq-to-seq) automatic speech recognition (ASR). We first introduced the word embedding regularization by maximizing the…

Computation and Language · Computer Science 2020-02-06 Alexander H. Liu , Tzu-Wei Sung , Shun-Po Chuang , Hung-yi Lee , Lin-shan Lee

Recent studies of streaming automatic speech recognition (ASR) recurrent neural network transducer (RNN-T)-based systems have fed the encoder with past contextual information in order to improve its word error rate (WER) performance. In…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-31 Alejandro Gomez-Alanis , Lukas Drude , Andreas Schwarz , Rupak Vignesh Swaminathan , Simon Wiesler

Automatic Speech Recognition (ASR) is an integral component of modern technology, powering applications such as voice-activated assistants, transcription services, and accessibility tools. Yet ASR systems continue to struggle with the…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-20 Mohammad Reza Peyghan , Saman Soleimani Roudi , Saeedreza Zouashkiani , Sajjad Amini , Fatemeh Rajabi , Shahrokh Ghaemmaghami

Despite rapid advances in automatic speech recognition (ASR) and large audio-language models, robust recognition in real-world environments remains limited by an "acoustic robustness bottleneck": models often lose acoustic grounding and…

Sound · Computer Science 2026-05-20 Zhifei Xie , Kaiyu Pang , Haobin Zhang , Deheng Ye , Xiaobin Hu , Shuicheng Yan , Chunyan Miao

Automatic Speech Recognition (ASR) is the interdisciplinary subfield of computational linguistics that develops methodologies and technologies that enables the recognition and translation of spoken language into text by computers. It…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-09 Rachit Shukla

In real-world applications, automatic speech recognition (ASR) systems must handle overlapping speech from multiple speakers and recognize rare words like technical terms. Traditional methods address multi-talker ASR and contextual biasing…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-17 Jiajun He , Naoki Sawada , Koichi Miyazaki , Tomoki Toda

Recently, end-to-end ASR based either on sequence-to-sequence networks or on the CTC objective function gained a lot of interest from the community, achieving competitive results over traditional systems using robust but complex pipelines.…

Computation and Language · Computer Science 2019-10-24 Florian Boyer , Jean-Luc Rouas

Streaming voice conversion has become increasingly popular for its potential in real-time applications. The recently proposed DualVC 2 has achieved robust and high-quality streaming voice conversion with a latency of about 180ms.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-13 Ziqian Ning , Shuai Wang , Pengcheng Zhu , Zhichao Wang , Jixun Yao , Lei Xie , Mengxiao Bi

Contextual ASR or hotword customization holds substantial practical value. Despite the impressive performance of current end-to-end (E2E) automatic speech recognition (ASR) systems, they often face challenges in accurately recognizing rare…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-12 Guanrou Yang , Ziyang Ma , Zhifu Gao , Shiliang Zhang , Xie Chen

In this paper, we present a new open source toolkit for automatic speech recognition (ASR), named CAT (CRF-based ASR Toolkit). A key feature of CAT is discriminative training in the framework of conditional random field (CRF), particularly…

Machine Learning · Computer Science 2019-11-21 Keyu An , Hongyu Xiang , Zhijian Ou

End-to-end (E2E) automatic speech recognition (ASR) implicitly learns the token sequence distribution of paired audio-transcript training data. However, it still suffers from domain shifts from training to testing, and domain adaptation is…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-16 Keqi Deng , Philip C. Woodland

Neural text-to-speech (TTS) generally consists of cascaded architecture with separately optimized acoustic model and vocoder, or end-to-end architecture with continuous mel-spectrograms or self-extracted speech frames as the intermediate…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-09 Ruiqing Xue , Yanqing Liu , Lei He , Xu Tan , Linquan Liu , Edward Lin , Sheng Zhao