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In recent years, automatic speech recognition (ASR) models greatly improved transcription performance both in clean, low noise, acoustic conditions and in reverberant environments. However, all these systems rely on the availability of…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-18 Francesco Nespoli , Daniel Barreda , Patrick A. Naylor

Word Error Rate (WER) has been the predominant metric used to evaluate the performance of automatic speech recognition (ASR) systems. However, WER is sometimes not a good indicator for downstream Natural Language Understanding (NLU) tasks,…

Computation and Language · Computer Science 2021-04-07 Suyoun Kim , Abhinav Arora , Duc Le , Ching-Feng Yeh , Christian Fuegen , Ozlem Kalinli , Michael L. Seltzer

Voice assistants increasingly use on-device Automatic Speech Recognition (ASR) to ensure speed and privacy. However, due to resource constraints on the device, queries pertaining to complex information domains often require further…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-13 Iwen E. Kang , Christophe Van Gysel , Man-Hung Siu

Automatic speech recognition (ASR) systems, increasingly prevalent in education, healthcare, employment, and mobile technology, face significant challenges in inclusivity, particularly for the 80 million-strong global community of people…

Computation and Language · Computer Science 2024-05-13 Dena Mujtaba , Nihar R. Mahapatra , Megan Arney , J. Scott Yaruss , Hope Gerlach-Houck , Caryn Herring , Jia Bin

The performances of automatic speech recognition (ASR) systems are usually evaluated by the metric word error rate (WER) when the manually transcribed data are provided, which are, however, expensively available in the real scenario. In…

Computation and Language · Computer Science 2020-09-01 Kai Fan , Jiayi Wang , Bo Li , Shiliang Zhang , Boxing Chen , Niyu Ge , Zhijie Yan

Objective assessment of speech that reflects meaningful changes in communication is crucial for clinical decision making and reproducible research. While existing objective assessments, particularly reference-based approaches, can capture…

Sound · Computer Science 2026-02-17 Bence Mark Halpern , Thomas Tienkamp , Defne Abur , Tomoki Toda

We introduce O-1, a new self-training objective to reduce training bias and unify training and evaluation metrics for speech recognition. O-1 is a faster variant of Expected Minimum Bayes Risk (EMBR), that boosts the oracle hypothesis and…

Machine Learning · Computer Science 2023-08-16 Murali Karthick Baskar , Andrew Rosenberg , Bhuvana Ramabhadran , Kartik Audhkhasi

Recent advancements in Automatic Speech Recognition (ASR) systems, exemplified by Whisper, have demonstrated the potential of these systems to approach human-level performance given sufficient data. However, this progress doesn't readily…

Audio and Speech Processing · Electrical Eng. & Systems 2024-05-16 Ahmed Adel Attia , Jing Liu , Wei Ai , Dorottya Demszky , Carol Espy-Wilson

In our previous work we demonstrated that a single headed attention encoder-decoder model is able to reach state-of-the-art results in conversational speech recognition. In this paper, we further improve the results for both Switchboard 300…

Computation and Language · Computer Science 2021-05-04 Zoltán Tüske , George Saon , Brian Kingsbury

The combination of a deep neural network (DNN) -based speech enhancement (SE) front-end and an automatic speech recognition (ASR) back-end is a widely used approach to implement overlapping speech recognition. However, the SE front-end…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-17 Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Keisuke Kinoshita , Naoyuki Kamo , Takafumi Moriya

Automatic speech recognition systems often produce confident yet incorrect transcriptions under noisy or ambiguous conditions, which can be misleading for both users and downstream applications. Standard evaluation based on Word Error Rate…

Sound · Computer Science 2026-04-29 Wenbin Huang , Yuhang Qiu , Bohan Li , Yiwei Guo , Jing Peng , Hankun Wang , Xie Chen , Kai Yu

As end-to-end automatic speech recognition (ASR) models reach promising performance, various downstream tasks rely on good confidence estimators for these systems. Recent research has shown that model-based confidence estimators have a…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-03 Qiujia Li , Yu Zhang , David Qiu , Yanzhang He , Liangliang Cao , Philip C. Woodland

Measuring automatic speech recognition (ASR) system quality is critical for creating user-satisfying voice-driven applications. Word Error Rate (WER) has been traditionally used to evaluate ASR system quality; however, it sometimes…

Computation and Language · Computer Science 2022-07-07 Suyoun Kim , Duc Le , Weiyi Zheng , Tarun Singh , Abhinav Arora , Xiaoyu Zhai , Christian Fuegen , Ozlem Kalinli , Michael L. Seltzer

In recent years, speech-based self-supervised learning (SSL) has made significant progress in various tasks, including automatic speech recognition (ASR). An ASR model with decent performance can be realized by fine-tuning an SSL model with…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-30 Zhisheng Zheng , Ziyang Ma , Yu Wang , Xie Chen

Many studies have shown automatic speech processing (ASR) systems have unequal performance across speakergroups (SG's). However, the manner in which such studies arrive at this conclusion is inconsistent. To pave the wayfor more reliable…

Computation and Language · Computer Science 2026-05-12 Felix Herron , Ange Richard , François Portet , Alexandre Allauzen , Solange Rossato

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

We introduce the problem of adapting a black-box, cloud-based ASR system to speech from a target accent. While leading online ASR services obtain impressive performance on main-stream accents, they perform poorly on sub-populations - we…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-25 Kartik Khandelwal , Preethi Jyothi , Abhijeet Awasthi , Sunita Sarawagi

Nowadays, speech is becoming a more common, if not standard, interface to technology. This can be seen in the trend of technology changes over the years. Increasingly, voice is used to control programs, appliances and personal devices…

Human-Computer Interaction · Computer Science 2019-09-10 Abraham Glasser

In this work, we introduce a simple yet efficient post-processing model for automatic speech recognition (ASR). Our model has Transformer-based encoder-decoder architecture which "translates" ASR model output into grammatically and…

Computation and Language · Computer Science 2019-10-24 Oleksii Hrinchuk , Mariya Popova , Boris Ginsburg

In a pipeline speech translation system, automatic speech recognition (ASR) system will transmit errors in recognition to the downstream machine translation (MT) system. A standard machine translation system is usually trained on parallel…

Computation and Language · Computer Science 2019-10-29 Qiao Cheng , Meiyuan Fang , Yaqian Han , Jin Huang , Yitao Duan