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Unsupervised Zero-Shot Voice Conversion (VC) aims to modify the speaker characteristic of an utterance to match an unseen target speaker without relying on parallel training data. Recently, self-supervised learning of speech representation…

Sound · Computer Science 2022-02-14 Trung Dang , Dung Tran , Peter Chin , Kazuhito Koishida

Speech enhancement has recently achieved great success with various deep learning methods. However, most conventional speech enhancement systems are trained with supervised methods that impose two significant challenges. First, a majority…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-22 Viet Anh Trinh , Sebastian Braun

Explainability of neural network prediction is essential to understand feature importance and gain interpretable insight into neural network performance. However, explanations of neural network outcomes are mostly limited to visualization,…

Machine Learning · Computer Science 2023-07-13 Arnab Neelim Mazumder , Niall Lyons , Ashutosh Pandey , Avik Santra , Tinoosh Mohsenin

End-to-end neural TTS training has shown improved performance in speech style transfer. However, the improvement is still limited by the training data in both target styles and speakers. Inadequate style transfer performance occurs when the…

Sound · Computer Science 2021-06-21 Xiaochun An , Frank K. Soong , Lei Xie

Perception components in autonomous systems are often developed and optimized independently of downstream decision-making and control components, relying on established performance metrics like accuracy, precision, and recall. Traditional…

Robotics · Computer Science 2024-12-05 Weisi Fan , Jesse Lane , Qisai Liu , Soumik Sarkar , Tichakorn Wongpiromsarn

Large Language Models (LLMs) have demonstrated remarkable capabilities on various tasks, while the further evolvement is limited to the lack of high-quality training data. In addition, traditional training approaches rely too much on…

Computation and Language · Computer Science 2025-02-14 Peidong Wang , Ming Wang , Zhiming Ma , Xiaocui Yang , Shi Feng , Daling Wang , Yifei Zhang , Kaisong Song

In this paper, we introduce harmonic loss as an alternative supervisory signal for training neural networks and large language models (LLMs). Harmonic loss differs from standard cross-entropy loss by (a) replacing the usual SoftMax…

Machine Learning · Computer Science 2025-07-11 David D. Baek , Ziming Liu , Riya Tyagi , Max Tegmark

High-quality speech corpora are essential foundations for most speech applications. However, such speech data are expensive and limited since they are collected in professional recording environments. In this work, we propose an…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-11 Haoyu Li , Yang Ai , Junichi Yamagishi

Connectionist Temporal Classification has recently attracted a lot of interest as it offers an elegant approach to building acoustic models (AMs) for speech recognition. The CTC loss function maps an input sequence of observable feature…

Computation and Language · Computer Science 2017-08-16 Thomas Zenkel , Ramon Sanabria , Florian Metze , Jan Niehues , Matthias Sperber , Sebastian Stüker , Alex Waibel

Transformer-based self-supervised models are trained as feature extractors and have empowered many downstream speech tasks to achieve state-of-the-art performance. However, both the training and inference process of these models may…

Computation and Language · Computer Science 2021-05-04 Jinchuan Tian , Rongzhi Gu , Helin Wang , Yuexian Zou

Large Language Models (LLMs) are one of the most promising technologies for the next era of speech generation systems, due to their scalability and in-context learning capabilities. Nevertheless, they suffer from multiple stability issues…

Language models (LMs) have shown superior performances in various speech generation tasks recently, demonstrating their powerful ability for semantic context modeling. Given the intrinsic similarity between speech generation and speech…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-09 Ziqian Wang , Xinfa Zhu , Zihan Zhang , YuanJun Lv , Ning Jiang , Guoqing Zhao , Lei Xie

As the complexity of neural network models has grown, it has become increasingly important to optimize their design automatically through metalearning. Methods for discovering hyperparameters, topologies, and learning rate schedules have…

Machine Learning · Computer Science 2020-04-28 Santiago Gonzalez , Risto Miikkulainen

In this paper, we present an unsupervised learning neural model to design transmit precoders for integrated sensing and communication (ISAC) systems to maximize the worst-case target illumination power while ensuring a minimum…

Signal Processing · Electrical Eng. & Systems 2023-03-14 R. S. Prasobh Sankar , Sidharth S. Nair , Siddhant Doshi , Sundeep Prabhakar Chepuri

Large, pre-trained representation models trained using self-supervised learning have gained popularity in various fields of machine learning because they are able to extract high-quality salient features from input data. As such, they have…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-16 Hejung Yang , Hong-Goo Kang

The integration of speech into Large Language Models (LLMs) has substantially expanded their capabilities, but often at the cost of weakening their core textual competence. This degradation limits the ability of speech-enabled LLMs to fully…

Computation and Language · Computer Science 2025-09-30 Chao Wang , Rui-Chen Zheng , Yang Ai , Zhen-Hua Ling

Studies have shown that in noisy acoustic environments, providing binaural signals to the user of an assistive listening device may improve speech intelligibility and spatial awareness. This paper presents a binaural speech enhancement…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-11 Vikas Tokala , Eric Grinstein , Mike Brookes , Simon Doclo , Jesper Jensen , Patrick A. Naylor

This paper presents a method of sequence-to-sequence (seq2seq) voice conversion using non-parallel training data. In this method, disentangled linguistic and speaker representations are extracted from acoustic features, and voice conversion…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-14 Jing-Xuan Zhang , Zhen-Hua Ling , Li-Rong Dai

Recently normalizing flows have been gaining traction in text-to-speech (TTS) and voice conversion (VC) due to their state-of-the-art (SOTA) performance. Normalizing flows are unsupervised generative models. In this paper, we introduce…

Sound · Computer Science 2023-12-29 Jakub Mosiński , Piotr Biliński , Thomas Merritt , Abdelhamid Ezzerg , Daniel Korzekwa

Speech enhancement significantly improves the clarity and intelligibility of speech in noisy environments, improving communication and listening experiences. In this paper, we introduce a novel pretraining feature-guided diffusion model…

Sound · Computer Science 2024-06-13 Yiyuan Yang , Niki Trigoni , Andrew Markham