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Although automatic speech recognition (ASR) task has gained remarkable success by sequence-to-sequence models, there are two main mismatches between its training and testing that might lead to performance degradation: 1) The typically used…

Computation and Language · Computer Science 2022-04-14 Chen Chen , Yuchen Hu , Nana Hou , Xiaofeng Qi , Heqing Zou , Eng Siong Chng

In Automatic Speech Recognition (ASR), teacher-student (T/S) training has shown to perform well for domain adaptation with small amount of training data. However, adaption without ground-truth labels is still challenging. A previous study…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-08 Rehan Ahmad , Muhammad Umar Farooq , Thomas Hain

We revisit self-training in the context of end-to-end speech recognition. We demonstrate that training with pseudo-labels can substantially improve the accuracy of a baseline model. Key to our approach are a strong baseline acoustic and…

Computation and Language · Computer Science 2020-05-08 Jacob Kahn , Ann Lee , Awni Hannun

Recent results in end-to-end automatic speech recognition have demonstrated the efficacy of pseudo-labeling for semi-supervised models trained both with Connectionist Temporal Classification (CTC) and Sequence-to-Sequence (seq2seq) losses.…

Computation and Language · Computer Science 2021-08-31 Tatiana Likhomanenko , Qiantong Xu , Jacob Kahn , Gabriel Synnaeve , Ronan Collobert

Automatic speech recognition (ASR) models with low-footprint are increasingly being deployed on edge devices for conversational agents, which enhances privacy. We study the problem of federated continual incremental learning for recurrent…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-22 Milind Rao , Gopinath Chennupati , Gautam Tiwari , Anit Kumar Sahu , Anirudh Raju , Ariya Rastrow , Jasha Droppo

Source separation can improve automatic speech recognition (ASR) under multi-party meeting scenarios by extracting single-speaker signals from overlapped speech. Despite the success of self-supervised learning models in single-channel…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-04 Yuang Li , Xianrui Zheng , Philip C. Woodland

The goal of this paper is to simulate the benefits of jointly applying active learning (AL) and semi-supervised training (SST) in a new speech recognition application. Our data selection approach relies on confidence filtering, and its…

Computation and Language · Computer Science 2019-03-08 Thomas Drugman , Janne Pylkkonen , Reinhard Kneser

Robust ASR under domain shift is crucial because real-world systems encounter unseen accents and domains with limited labeled data. Although pseudo-labeling offers a practical workaround, it often introduces systematic, accent-specific…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-21 Yi-Cheng Lin , Yu-Hsuan Li Liang , Hsuan Su , Tzu-Quan Lin , Shang-Tse Chen , Yun-Nung Chen , Hung-yi Lee

Large-scale audio tagging datasets inevitably contain imperfect labels, such as clip-wise annotated (temporally weak) tags with no exact on- and offsets, due to a high manual labeling cost. This work proposes pseudo strong labels (PSL), a…

Sound · Computer Science 2022-04-29 Heinrich Dinkel , Zhiyong Yan , Yongqing Wang , Junbo Zhang , Yujun Wang

Recent advances in supervised, semi-supervised and self-supervised deep learning algorithms have shown significant improvement in the performance of automatic speech recognition(ASR) systems. The state-of-the-art systems have achieved a…

Computation and Language · Computer Science 2021-10-19 Somnath Roy

Recent advances in speech foundation models are largely driven by scaling both model size and data, enabling them to perform a wide range of tasks, including speech recognition. Traditionally, ASR models are evaluated using metrics like…

Computation and Language · Computer Science 2025-06-06 Abdul Waheed , Hanin Atwany , Rita Singh , Bhiksha Raj

Recent advancement in deep learning encouraged developing large automatic speech recognition (ASR) models that achieve promising results while ignoring computational and memory constraints. However, deploying such models on low resource…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Abdul Hannan , Alessio Brutti , Shah Nawaz , Mubashir Noman

Recent advancements in Self-Supervised Learning (SSL) have shown promising results in Speaker Verification (SV). However, narrowing the performance gap with supervised systems remains an ongoing challenge. Several studies have observed that…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-25 Victor Miara , Theo Lepage , Reda Dehak

To alleviate human efforts from obtaining large-scale annotations, Semi-Supervised Relation Extraction methods aim to leverage unlabeled data in addition to learning from limited samples. Existing self-training methods suffer from the…

Computation and Language · Computer Science 2021-09-13 Xuming Hu , Chenwei Zhang , Fukun Ma , Chenyao Liu , Lijie Wen , Philip S. Yu

Self-supervised learning (SSL) has been able to leverage unlabeled data to boost the performance of automatic speech recognition (ASR) models when we have access to only a small amount of transcribed speech data. However, this raises the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-06 Reem Gody , David Harwath

Semi-supervised training (SST) is a common approach to leverage untranscribed/unlabeled speech data to improve automatic speech recognition performance in low-resource languages. However, if the available unlabeled speech is mismatched to…

Computation and Language · Computer Science 2021-06-03 Jayadev Billa

Modern Automatic Speech Recognition (ASR) systems can achieve high performance in terms of recognition accuracy. However, a perfectly accurate transcript still can be challenging to read due to disfluency, filter words, and other errata…

Computation and Language · Computer Science 2021-02-23 Junwei Liao , Yu Shi , Ming Gong , Linjun Shou , Sefik Eskimez , Liyang Lu , Hong Qu , Michael Zeng

Self-supervised Transformer based models, such as wav2vec 2.0 and HuBERT, have produced significant improvements over existing approaches to automatic speech recognition (ASR). This is evident in the performance of the wav2vec 2.0 based…

Computation and Language · Computer Science 2022-07-05 Mitchell DeHaven , Jayadev Billa

Automatic Chord Recognition (ACR) is constrained by the scarcity of aligned chord labels, as well-aligned annotations are costly to acquire. At the same time, open-weight pre-trained models are currently more accessible than their…

Sound · Computer Science 2026-03-31 Nghia Phan , Rong Jin , Gang Liu , Xiao Dong

Training deep neural networks for automatic speech recognition (ASR) requires large amounts of transcribed speech. This becomes a bottleneck for training robust models for accented speech which typically contains high variability in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-11 Nilaksh Das , Sravan Bodapati , Monica Sunkara , Sundararajan Srinivasan , Duen Horng Chau