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Conventional deep neural network (DNN)-based speech enhancement (SE) approaches aim to minimize the mean square error (MSE) between enhanced speech and clean reference. The MSE-optimized model may not directly improve the performance of an…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-13 Yih-Liang Shen , Chao-Yuan Huang , Syu-Siang Wang , Yu Tsao , Hsin-Min Wang , Tai-Shih Chi

Speech-to-text errors made by automatic speech recognition (ASR) systems negatively impact downstream models. Error correction models as a post-processing text editing method have been recently developed for refining the ASR outputs.…

Computation and Language · Computer Science 2023-06-22 Ziji Zhang , Zhehui Wang , Rajesh Kamma , Sharanya Eswaran , Narayanan Sadagopan

Building an automatic speech recognition (ASR) system from scratch requires a large amount of annotated speech data, which is difficult to collect in many languages. However, there are cases where the low-resource language shares a common…

Computation and Language · Computer Science 2021-09-17 Anoop C S , Prathosh A P , A G Ramakrishnan

Error correction techniques remain effective to refine outputs from automatic speech recognition (ASR) models. Existing end-to-end error correction methods based on an encoder-decoder architecture process all tokens in the decoding phase,…

Computation and Language · Computer Science 2022-08-10 Jingyuan Yang , Rongjun Li , Wei Peng

As speech recognition model sizes and training data requirements grow, it is increasingly common for systems to only be available via APIs from online service providers rather than having direct access to models themselves. In this scenario…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-11 Rao Ma , Mengjie Qian , Mark J. F. Gales , Kate M. Knill

Automatic Speech Recognition (ASR) plays an important role in speech-based automatic detection of Alzheimer's disease (AD). However, recognition errors could propagate downstream, potentially impacting the detection decisions. Recent…

Computation and Language · Computer Science 2024-12-10 Jiawen Kang , Junan Li , Jinchao Li , Xixin Wu , Helen Meng

Automatic Speech Recognition (ASR), as the assistance of speech communication between pilots and air-traffic controllers, can significantly reduce the complexity of the task and increase the reliability of transmitted information. ASR…

Computation and Language · Computer Science 2022-02-09 Iuliia Nigmatulina , Juan Zuluaga-Gomez , Amrutha Prasad , Seyyed Saeed Sarfjoo , Petr Motlicek

End-to-End (E2E) automatic speech recognition (ASR) systems used in voice assistants often have difficulties recognizing infrequent words personalized to the user, such as names and places. Rare words often have non-trivial pronunciations,…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-09 Rahul Pandey , Roger Ren , Qi Luo , Jing Liu , Ariya Rastrow , Ankur Gandhe , Denis Filimonov , Grant Strimel , Andreas Stolcke , Ivan Bulyko

Automatic Speech Recognition (ASR) plays a crucial role in voice-based applications. For applications requiring real-time feedback like Voice Search, streaming capability becomes vital. While LSTM/RNN and CTC based ASR systems are commonly…

Sound · Computer Science 2023-05-31 Abhinav Goyal , Nikesh Garera

Speech-based open-domain question answering (QA over a large corpus of text passages with spoken questions) has emerged as an important task due to the increasing number of users interacting with QA systems via speech interfaces. Passage…

Computation and Language · Computer Science 2024-09-23 Georgios Sidiropoulos , Evangelos Kanoulas

Automatic Speech Recognition (ASR) plays a crucial role in human-machine interaction and serves as an interface for a wide range of applications. Traditionally, ASR performance has been evaluated using Word Error Rate (WER), a metric that…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-23 Sujith Pulikodan , Sahapthan K , Prasanta Kumar Ghosh , Visruth Sanka , Nihar Desai

Speaker-role diarization (RD), such as doctor vs. patient or lawyer vs. client, is practically often more useful than conventional speaker diarization (SD), which assigns only generic labels (speaker-1, speaker-2). The state-of-the-art…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-23 Arindam Ghosh , Mark Fuhs , Bongjun Kim , Anurag Chowdhury , Monika Woszczyna

This paper presents a speech intelligibility model based on automatic speech recognition (ASR), combining phoneme probabilities from deep neural networks (DNN) and a performance measure that estimates the word error rate from these…

While speech large language models (SpeechLLMs) have advanced standard automatic speech recognition (ASR), contextual biasing for named entities and rare words remains challenging, especially at scale. To address this, we propose BR-ASR: a…

Sound · Computer Science 2025-05-27 Xun Gong , Anqi Lv , Zhiming Wang , Huijia Zhu , Yanmin Qian

Large size models are implemented in recently ASR system to deal with complex speech recognition problems. The num- ber of parameters in these models makes them hard to deploy, especially on some resource-short devices such as car tablet.…

Machine Learning · Computer Science 2018-07-10 Sihao Xue , Zhenyi Ying , Fan Mo , Min Wang , Jue Sun

We present automatic speech recognition (ASR) systems for Tamil and Kannada based on subword modeling to effectively handle unlimited vocabulary due to the highly agglutinative nature of the languages. We explore byte pair encoding (BPE),…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-28 Madhavaraj A , Bharathi Pilar , Ramakrishnan A G

In automatic speech recognition (ASR), recurrent neural language models (RNNLM) are typically used to refine hypotheses in the form of lattices or n-best lists, which are generated by a beam search decoder with a weaker language model. The…

Computation and Language · Computer Science 2018-11-09 Rémi Francis , Tom Ash , Will Williams

Domain-specific speech remains a persistent challenge for automatic speech recognition (ASR), even for state-of-the-art systems like OpenAI's Whisper. We introduce Whisper: Courtside Edition, a novel multi-agent large language model (LLM)…

Computation and Language · Computer Science 2026-02-24 Yonathan Ron , Shiri Gilboa , Tammuz Dubnov

Keyword Spotting (KWS) provides the start signal of ASR problem, and thus it is essential to ensure a high recall rate. However, its real-time property requires low computation complexity. This contradiction inspires people to find a…

Computation and Language · Computer Science 2018-11-07 Yixiao Qu , Sihao Xue , Zhenyi Ying , Hang Zhou , Jue Sun

Conventional keyword search systems operate on automatic speech recognition (ASR) outputs, which causes them to have a complex indexing and search pipeline. This has led to interest in ASR-free approaches to simplify the search procedure.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-17 Bolaji Yusuf , Jan Cernocky , Murat Saraclar