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This paper presents a novel multistage fine-tuning strategy designed to enhance automatic speech recognition (ASR) performance in low-resource languages using OpenAI's Whisper model. In this approach we aim to build ASR model for languages…

Computation and Language · Computer Science 2024-11-08 Leena G Pillai , Kavya Manohar , Basil K Raju , Elizabeth Sherly

Automatic recognition of dysarthric speech remains a highly challenging task to date. Neuro-motor conditions and co-occurring physical disabilities create difficulty in large-scale data collection for ASR system development. Adapting SSL…

Sound · Computer Science 2024-01-02 Huimeng Wang , Zengrui Jin , Mengzhe Geng , Shujie Hu , Guinan Li , Tianzi Wang , Haoning Xu , Xunying Liu

Quantifying the confidence (or conversely the uncertainty) of a prediction is a highly desirable trait of an automatic system, as it improves the robustness and usefulness in downstream tasks. In this paper we investigate confidence…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-15 Dan Oneata , Alexandru Caranica , Adriana Stan , Horia Cucu

Self-supervised learning (SSL) methods which learn representations of data without explicit supervision have gained popularity in speech-processing tasks, particularly for single-talker applications. However, these models often have…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-02 Zili Huang , Desh Raj , Paola García , Sanjeev Khudanpur

Text encodings from automatic speech recognition (ASR) transcripts and audio representations have shown promise in speech emotion recognition (SER) ever since. Yet, it is challenging to explain the effect of each information stream on the…

The use of spatial information with multiple microphones can improve far-field automatic speech recognition (ASR) accuracy. However, conventional microphone array techniques degrade speech enhancement performance when there is an array…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-23 Kenichi Kumatani , Minhua Wu , Shiva Sundaram , Nikko Strom , Bjorn Hoffmeister

Recent advancements in automatic speech recognition (ASR) have achieved notable progress, whereas robustness in noisy environments remains challenging. While speech enhancement (SE) front-ends are widely used to mitigate noise as a…

Sound · Computer Science 2025-09-29 Siyi Zhao , Wei Wang , Yanmin Qian

Recent techniques for speech deepfake detection often rely on pre-trained self-supervised models. These systems, initially developed for Automatic Speech Recognition (ASR), have proved their ability to offer a meaningful representation of…

Attention-based encoder-decoder architectures such as Listen, Attend, and Spell (LAS), subsume the acoustic, pronunciation and language model components of a traditional automatic speech recognition (ASR) system into a single neural…

Training speech recognizers with unpaired speech and text -- known as unsupervised speech recognition (UASR) -- is a crucial step toward extending ASR to low-resource languages in the long-tail distribution and enabling multimodal learning…

Computation and Language · Computer Science 2025-10-07 Liming Wang , Junrui Ni , Kai-Wei Chang , Saurabhchand Bhati , David Harwath , Mark Hasegawa-Johnson , James R. Glass

Stuttering -- characterized by involuntary disfluencies such as blocks, prolongations, and repetitions -- is often misinterpreted by automatic speech recognition (ASR) systems, resulting in elevated word error rates and making voice-driven…

Sound · Computer Science 2025-08-22 Dena Mujtaba , Nihar Mahapatra

The state-of-art methods for acoustic beamforming in multi-channel ASR are based on a neural mask estimator that predicts the presence of speech and noise. These models are trained using a paired corpus of clean and noisy recordings…

Audio and Speech Processing · Electrical Eng. & Systems 2019-12-02 Rohit Kumar , Anirudh Sreeram , Anurenjan Purushothaman , Sriram Ganapathy

Previously, a machine speech chain, which is based on sequence-to-sequence deep learning, was proposed to mimic speech perception and production behavior. Such chains separately processed listening and speaking by automatic speech…

Computation and Language · Computer Science 2019-11-15 Johanes Effendi , Andros Tjandra , Sakriani Sakti , Satoshi Nakamura

This paper proposes the use of two task-aware warping factors in mask-based speech enhancement (SE). One controls the balance between speech-maintenance and noise-removal in training phases, while the other controls SE power applied to…

Sound · Computer Science 2021-08-30 Qiongqiong Wang , Kong Aik Lee , Takafumi Koshinaka , Koji Okabe , Hitoshi Yamamoto

In this paper, we propose a novel auxiliary loss function for target-speaker automatic speech recognition (ASR). Our method automatically extracts and transcribes target speaker's utterances from a monaural mixture of multiple speakers…

Computation and Language · Computer Science 2019-06-27 Naoyuki Kanda , Shota Horiguchi , Ryoichi Takashima , Yusuke Fujita , Kenji Nagamatsu , Shinji Watanabe

The performance of voice-controlled systems is usually influenced by accented speech. To make these systems more robust, the frontend accent recognition (AR) technologies have received increased attention in recent years. As accent is a…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-06 Zhan Zhang , Xi Chen , Yuehai Wang , Jianyi Yang

Conventional speech enhancement technique such as beamforming has known benefits for far-field speech recognition. Our own work in frequency-domain multi-channel acoustic modeling has shown additional improvements by training a spatial…

Sound · Computer Science 2020-02-10 Taejin Park , Kenichi Kumatani , Minhua Wu , Shiva Sundaram

Current front-ends for robust automatic speech recognition(ASR) include masking- and mapping-based deep learning approaches to speech enhancement. A recently proposed deep learning approach toa prioriSNR estimation, called DeepXi, was able…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-29 Aaron Nicolson , Kuldip K. Paliwal

To better model the contextual information and increase the generalization ability of Speech Activity Detection (SAD) system, this paper leverages a multi-lingual Automatic Speech Recognition (ASR) system to perform SAD. Sequence…

Sound · Computer Science 2021-04-13 Seyyed Saeed Sarfjoo , Srikanth Madikeri , Petr Motlicek

While machine learning techniques are traditionally resource intensive, we are currently witnessing an increased interest in hardware and energy efficient approaches. This need for resource-efficient machine learning is primarily driven by…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-23 Lukas Pfeifenberger , Matthias Zöhrer , Günther Schindler , Wolfgang Roth , Holger Fröning , Franz Pernkopf