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In this paper, we propose a language-universal adapter learning framework based on a pre-trained model for end-to-end multilingual automatic speech recognition (ASR). For acoustic modeling, the wav2vec 2.0 pre-trained model is fine-tuned by…

Computation and Language · Computer Science 2023-03-03 Zhijie Shen , Wu Guo , Bin Gu

Despite recent advancements in deep learning technologies, Child Speech Recognition remains a challenging task. Current Automatic Speech Recognition (ASR) models require substantial amounts of annotated data for training, which is scarce.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-14 Rishabh Jain , Andrei Barcovschi , Mariam Yiwere , Dan Bigioi , Peter Corcoran , Horia Cucu

Advent of modern deep learning techniques has given rise to advancements in the field of Speech Emotion Recognition (SER). However, most systems prevalent in the field fail to generalize to speakers not seen during training. This study…

Computation and Language · Computer Science 2024-06-21 Arnav Goel , Medha Hira , Anubha Gupta

Training unsupervised speech recognition systems presents challenges due to GAN-associated instability, misalignment between speech and text, and significant memory demands. To tackle these challenges, we introduce a novel ASR system,…

Computation and Language · Computer Science 2023-10-05 Liming Wang , Mark Hasegawa-Johnson , Chang D. Yoo

Unsupervised single-channel overlapped speech recognition is one of the hardest problems in automatic speech recognition (ASR). Permutation invariant training (PIT) is a state of the art model-based approach, which applies a single neural…

Computation and Language · Computer Science 2017-12-27 Zhehuai Chen , Jasha Droppo , Jinyu Li , Wayne Xiong

We propose an unsupervised speaker adaptation method inspired by the neural Turing machine for end-to-end (E2E) automatic speech recognition (ASR). The proposed model contains a memory block that holds speaker i-vectors extracted from the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-17 Leda Sarı , Niko Moritz , Takaaki Hori , Jonathan Le Roux

Although recent advances in deep learning technology have boosted automatic speech recognition (ASR) performance in the single-talker case, it remains difficult to recognize multi-talker speech in which many voices overlap. One conventional…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-20 Takafumi Moriya , Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Takahiro Shinozaki

While various end-to-end models for spoken language understanding tasks have been explored recently, this paper is probably the first known attempt to challenge the very difficult task of end-to-end spoken question answering (SQA). Learning…

Computation and Language · Computer Science 2020-08-12 Yung-Sung Chuang , Chi-Liang Liu , Hung-Yi Lee , Lin-shan Lee

This paper describes the ExKaldi-RT online automatic speech recognition (ASR) toolkit that is implemented based on the Kaldi ASR toolkit and Python language. ExKaldi-RT provides tools for building online recognition pipelines. While similar…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-10 Yu Wang , Chee Siang Leow , Akio Kobayashi , Takehito Utsuro , Hiromitsu Nishizaki

Self-supervised learning (SSL) is a powerful tool that allows learning of underlying representations from unlabeled data. Transformer based models such as wav2vec 2.0 and HuBERT are leading the field in the speech domain. Generally these…

Computation and Language · Computer Science 2022-02-08 Bethan Thomas , Samuel Kessler , Salah Karout

Modern speech recognition systems exhibits rapid performance degradation under domain shift. This issue is especially prevalent in data-scarce settings, such as low-resource languages, where diversity of training data is limited. In this…

Most of the achievements in artificial intelligence so far were accomplished by supervised learning which requires numerous annotated training data and thus costs innumerable manpower for labeling. Unsupervised learning is one of the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Mingxiang Chen , Zhanguo Chang , Haonan Lu , Bitao Yang , Zhuang Li , Liufang Guo , Zhecheng Wang

Self-supervised learning (SSL) has significantly advanced acoustic representation learning. However, most existing models are optimised for either speech or audio event understanding, resulting in a persistent gap between these two domains.…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-05 Xiaoyu Yang , Yifan Yang , Zengrui Jin , Ziyun Cui , Wen Wu , Baoxiang Li , Chao Zhang , Phil Woodland

Self-supervised learning (SSL) has led to great strides in speech processing. However, the resources needed to train these models has become prohibitively large as they continue to scale. Currently, only a few groups with substantial…

Computation and Language · Computer Science 2023-06-13 William Chen , Xuankai Chang , Yifan Peng , Zhaoheng Ni , Soumi Maiti , Shinji Watanabe

This paper proposes a multilingual speech synthesis method which combines unsupervised phonetic representations (UPR) and supervised phonetic representations (SPR) to avoid reliance on the pronunciation dictionaries of target languages. In…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-03 Chang Liu , Zhen-Hua Ling , Ling-Hui Chen

Sequence-to-sequence automatic speech recognition (ASR) models require large quantities of data to attain high performance. For this reason, there has been a recent surge in interest for unsupervised and semi-supervised training in such…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-21 Murali Karthick Baskar , Shinji Watanabe , Ramon Astudillo , Takaaki Hori , Lukáš Burget , Jan Černocký

Subtitles are essential for video accessibility and audience engagement. Modern Automatic Speech Recognition (ASR) systems, built upon Encoder-Decoder neural network architectures and trained on massive amounts of data, have progressively…

Computation and Language · Computer Science 2025-12-23 Alessandro Lucca , Francesco Pierri

Recently, an end-to-end (E2E) speaker-attributed automatic speech recognition (SA-ASR) model was proposed as a joint model of speaker counting, speech recognition and speaker identification for monaural overlapped speech. It showed…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-12 Naoyuki Kanda , Xuankai Chang , Yashesh Gaur , Xiaofei Wang , Zhong Meng , Zhuo Chen , Takuya Yoshioka

This paper investigates the use of unsupervised text-to-speech synthesis (TTS) as a data augmentation method to improve accented speech recognition. TTS systems are trained with a small amount of accented speech training data and their…

Computation and Language · Computer Science 2024-07-08 Cong-Thanh Do , Shuhei Imai , Rama Doddipatla , Thomas Hain

In Speech Emotion Recognition (SER), textual data is often used alongside audio signals to address their inherent variability. However, the reliance on human annotated text in most research hinders the development of practical SER systems.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-30 Yuanchao Li , Zeyu Zhao , Ondrej Klejch , Peter Bell , Catherine Lai