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This paper proposes a novel, resource-efficient approach to Visual Speech Recognition (VSR) leveraging speech representations produced by any trained Automatic Speech Recognition (ASR) model. Moving away from the resource-intensive trends…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Hendrik Laux , Emil Mededovic , Ahmed Hallawa , Lukas Martin , Arne Peine , Anke Schmeink

We investigate continued pretraining (CPT) for adapting wav2vec2-bert-2.0 to Swahili automatic speech recognition (ASR). Our approach combines unlabeled audio with limited labeled data through pseudo-labeled CPT followed by supervised…

Sound · Computer Science 2026-03-13 Hillary Mutisya , John Mugane

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

Automatic speech recognition (ASR) systems often degrade on accented speech because acoustic-phonetic and prosodic shifts induce a mismatch to training data, making labeled accent adaptation costly. However, common pseudo-label selection…

Computation and Language · Computer Science 2026-02-17 Ligong Lei , Wenwen Lu , Xudong Pang , Zaokere Kadeer , Aishan Wumaier

In this study, we tackle the challenge of limited labeled data for low-resource languages in ASR, focusing on Hindi. Specifically, we explore pseudo-labeling, by proposing a generic framework combining multiple ideas from existing works.…

ASR has achieved remarkable global progress, yet African low-resource languages remain rigorously underrepresented, producing barriers to digital inclusion across the continent with more than +2000 languages. This systematic literature…

In this paper, we proposed to apply meta learning approach for low-resource automatic speech recognition (ASR). We formulated ASR for different languages as different tasks, and meta-learned the initialization parameters from many…

Sound · Computer Science 2019-10-29 Jui-Yang Hsu , Yuan-Jui Chen , Hung-yi Lee

Labeled audio data is insufficient to build satisfying speech recognition systems for most of the languages in the world. There have been some zero-resource methods trying to perform phoneme or word-level speech recognition without labeled…

Computation and Language · Computer Science 2025-01-14 Haoyu Wang , Wei-Qiang Zhang , Hongbin Suo , Yulong Wan

This paper proposes a powerful Visual Speech Recognition (VSR) method for multiple languages, especially for low-resource languages that have a limited number of labeled data. Different from previous methods that tried to improve the VSR…

Computer Vision and Pattern Recognition · Computer Science 2024-01-15 Jeong Hun Yeo , Minsu Kim , Shinji Watanabe , Yong Man Ro

Pseudo-labeling has recently shown promise in end-to-end automatic speech recognition (ASR). We study Iterative Pseudo-Labeling (IPL), a semi-supervised algorithm which efficiently performs multiple iterations of pseudo-labeling on…

Computation and Language · Computer Science 2020-08-28 Qiantong Xu , Tatiana Likhomanenko , Jacob Kahn , Awni Hannun , Gabriel Synnaeve , Ronan Collobert

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

Transfer learning from high-resource languages is known to be an efficient way to improve end-to-end automatic speech recognition (ASR) for low-resource languages. Pre-trained or jointly trained encoder-decoder models, however, do not share…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-12 Changhan Wang , Juan Pino , Jiatao Gu

The performance of automatic speech recognition (ASR) systems has advanced substantially in recent years, particularly for languages for which a large amount of transcribed speech is available. Unfortunately, for low-resource languages,…

Computation and Language · Computer Science 2023-05-22 Martijn Bartelds , Nay San , Bradley McDonnell , Dan Jurafsky , Martijn Wieling

Audio-visual speech recognition has received a lot of attention due to its robustness against acoustic noise. Recently, the performance of automatic, visual, and audio-visual speech recognition (ASR, VSR, and AV-ASR, respectively) has been…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Pingchuan Ma , Alexandros Haliassos , Adriana Fernandez-Lopez , Honglie Chen , Stavros Petridis , Maja Pantic

Automatic speech recognition (ASR) for low-resource languages remains a challenge due to the scarcity of labeled training data. Parameter-efficient fine-tuning and text-only adaptation are two popular methods that have been used to address…

Computation and Language · Computer Science 2024-10-18 Abhishek Gupta , Amruta Parulekar , Sameep Chattopadhyay , Preethi Jyothi

We address the problem of efficient acoustic-model refinement (continuous retraining) using semi-supervised and active learning for a low resource Indian language, wherein the low resource constraints are having i) a small labeled corpus…

Computation and Language · Computer Science 2018-10-17 Maharajan Chellapriyadharshini , Anoop Toffy , Srinivasa Raghavan K. M. , V Ramasubramanian

State-of-the-art automatic speech recognition (ASR) systems are trained with tens of thousands of hours of labeled speech data. Human transcription is expensive and time consuming. Factors such as the quality and consistency of the…

Machine Learning · Computer Science 2022-07-05 Dongseong Hwang , Khe Chai Sim , Zhouyuan Huo , Trevor Strohman

This paper presents our system for the MISP-Meeting Challenge Track 2. The primary difficulty lies in the dataset, which contains strong background noise, reverberation, overlapping speech, and diverse meeting topics. To address these…

Sound · Computer Science 2025-06-24 Longjie Luo , Shenghui Lu , Lin Li , Qingyang Hong

Pseudo-labeling (PL) has been shown to be effective in semi-supervised automatic speech recognition (ASR), where a base model is self-trained with pseudo-labels generated from unlabeled data. While PL can be further improved by iteratively…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-17 Yosuke Higuchi , Niko Moritz , Jonathan Le Roux , Takaaki Hori

Automatic Speech Recognition (ASR) is an active field of research due to its large number of applications and the proliferation of interfaces or computing devices that can support speech processing. However, the bulk of applications are…

Artificial Intelligence · Computer Science 2022-03-03 Jean Louis K. E. Fendji , Diane C. M. Tala , Blaise O. Yenke , Marcellin Atemkeng