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Recently, self-supervised learning (SSL) from unlabelled speech data has gained increased attention in the automatic speech recognition (ASR) community. Typical SSL methods include autoregressive predictive coding (APC), Wav2vec2.0, and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-02 Ruchao Fan , Yunzheng Zhu , Jinhan Wang , Abeer Alwan

Self-Supervised Learning (SSL) has become a powerful solution to extract rich representations from unlabeled data. Yet, SSL research is mostly focused on clean, curated and high-quality datasets. As a result, applying SSL on noisy data…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Wenquan Lu , Jiaqi Zhang , Hugues Van Assel , Randall Balestriero

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

In this paper, we apply Semi-Supervised Learning (SSL) along with Data Augmentation (DA) for improving the accuracy of End-to-End ASR. We focus on the consistency regularization principle, which has been successfully applied to image…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-29 Felix Weninger , Franco Mana , Roberto Gemello , Jesús Andrés-Ferrer , Puming Zhan

Data2vec is a self-supervised learning (SSL) approach that employs a teacher-student architecture for contextual representation learning via masked prediction, demonstrating remarkable performance in monolingual ASR. Previous studies have…

Sound · Computer Science 2025-01-24 Qijie Shao , Linhao Dong , Kun Wei , Sining Sun , Lei Xie

In this study, we investigate self-supervised representation learning for speaker verification (SV). First, we examine a simple contrastive learning approach (SimCLR) with a momentum contrastive (MoCo) learning framework, where the MoCo…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-16 Wei Xia , Chunlei Zhang , Chao Weng , Meng Yu , Dong Yu

Pre-trained language models have proven their unique powers in capturing implicit language features. However, most pre-training approaches focus on the word-level training objective, while sentence-level objectives are rarely studied. In…

Computation and Language · Computer Science 2021-01-01 Zhuofeng Wu , Sinong Wang , Jiatao Gu , Madian Khabsa , Fei Sun , Hao Ma

We investigate the performance of self-supervised pretraining frameworks on pathological speech datasets used for automatic speech recognition (ASR). Modern end-to-end models require thousands of hours of data to train well, but only a…

Sound · Computer Science 2022-06-30 Lester Phillip Violeta , Wen-Chin Huang , Tomoki Toda

For fine-grained generation and recognition tasks such as minimally-supervised text-to-speech (TTS), voice conversion (VC), and automatic speech recognition (ASR), the intermediate representations extracted from speech should serve as a…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-19 Chunyu Qiang , Hao Li , Yixin Tian , Ruibo Fu , Tao Wang , Longbiao Wang , Jianwu Dang

With the rise of SSL and ASR technologies, the Wav2Vec2 ASR-based model has been fine-tuned for automated speech disorder quality assessment tasks, yielding impressive results and setting a new baseline for Head and Neck Cancer speech…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-14 Tuan Nguyen , Corinne Fredouille , Alain Ghio , Mathieu Balaguer , Virginie Woisard

This paper presents SimCSE, a simple contrastive learning framework that greatly advances state-of-the-art sentence embeddings. We first describe an unsupervised approach, which takes an input sentence and predicts itself in a contrastive…

Computation and Language · Computer Science 2022-05-19 Tianyu Gao , Xingcheng Yao , Danqi Chen

Code-switching speech recognition (CSSR) transcribes speech that switches between multiple languages or dialects within a single sentence. The main challenge in this task is that different languages often have similar pronunciations, making…

Sound · Computer Science 2023-06-09 Zhiyun Fan , Linhao Dong , Chen Shen , Zhenlin Liang , Jun Zhang , Lu Lu , Zejun Ma

Multilingual end-to-end(E2E) models have shown a great potential in the expansion of the language coverage in the realm of automatic speech recognition(ASR). In this paper, we aim to enhance the multilingual ASR performance in two ways,…

Computation and Language · Computer Science 2021-10-18 Rimita Lahiri , Kenichi Kumatani , Eric Sun , Yao Qian

Self-supervised speech pre-training methods have developed rapidly in recent years, which show to be very effective for many near-field single-channel speech tasks. However, far-field multichannel speech processing is suffering from the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-09 Qiushi Zhu , Jie Zhang , Yu Gu , Yuchen Hu , Lirong Dai

As a form of biometric authentication technology, the security of speaker verification systems is of utmost importance. However, SV systems are inherently vulnerable to various types of attacks that can compromise their accuracy and…

Sound · Computer Science 2024-09-17 Qing Wang , Hongmei Guo , Jian Kang , Mengjie Du , Jie Li , Xiao-Lei Zhang , Lei Xie

Self-supervised pre-training could effectively improve the performance of low-resource automatic speech recognition (ASR). However, existing self-supervised pre-training are task-agnostic, i.e., could be applied to various downstream tasks.…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-20 Han Zhu , Li Wang , Jindong Wang , Gaofeng Cheng , Pengyuan Zhang , Yonghong Yan

Representation learning from unlabeled data has been of major interest in artificial intelligence research. While self-supervised speech representation learning has been popular in the speech research community, very few works have…

Self-supervised learning (SSL) has shown significant progress in speech processing tasks. However, despite the intrinsic randomness in the Transformer structure, such as dropout variants and layer-drop, improving the model-level consistency…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-16 Ji Won Yoon , Seok Min Kim , Nam Soo Kim

Humans are capable of processing speech by making use of multiple sensory modalities. For example, the environment where a conversation takes place generally provides semantic and/or acoustic context that helps us to resolve ambiguities or…

Computation and Language · Computer Science 2019-02-21 Ozan Caglayan , Ramon Sanabria , Shruti Palaskar , Loïc Barrault , Florian Metze

Recent work has explored using self-supervised learning (SSL) speech representations such as wav2vec2.0 as the representation medium in standard two-stage TTS, in place of conventionally used mel-spectrograms. It is however unclear which…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-11 Siyang Wang , Gustav Eje Henter , Joakim Gustafson , Éva Székely