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In this paper, we propose a novel supervised single-channel speech enhancement method combing the the Kullback-Leibler divergence-based non-negative matrix factorization (NMF) and hidden Markov model (NMF-HMM). With the application of HMM,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-01 Yang Xiang , Liming Shi , Jesper Lisby Højvang , Morten Højfeldt Rasmussen , Mads Græsbøll Christensen

We propose a new framework to improve automatic speech recognition (ASR) systems in resource-scarce environments using a generative adversarial network (GAN) operating on acoustic input features. The GAN is used to enhance the features of…

Sound · Computer Science 2022-10-07 Walter Heymans , Marelie H. Davel , Charl van Heerden

There are many factors affecting visual face recognition, such as low resolution images, aging, illumination and pose variance, etc. One of the most important problem is low resolution face images which can result in bad performance on face…

Computer Vision and Pattern Recognition · Computer Science 2019-05-17 Bayram Bayramli , Usman Ali , Te Qi , Hongtao Lu

Face-morphing attacks are a growing concern for biometric researchers, as they can be used to fool face recognition systems (FRS). These attacks can be generated at the image level (supervised) or representation level (unsupervised).…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Aravinda Reddy PN , Raghavendra Ramachandra , Krothapalli Sreenivasa Rao , Pabitra Mitra

The advent of learning-based methods in speech enhancement has revived the need for robust and reliable training features that can compactly represent speech signals while preserving their vital information. Time-frequency domain features,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-28 Farnood Faraji , Yazid Attabi , Benoit Champagne , Wei-Ping Zhu

Generative Adversarial Networks (GAN) is a model for data synthesis, which creates plausible data through the competition of generator and discriminator. Although GAN application to image synthesis is extensively studied, it has inherent…

Computation and Language · Computer Science 2025-01-07 Jun-Min Lee , Tae-Bin Ha

Self-supervised learning (SSL) for automated speech recognition in terms of its emotional content, can be heavily degraded by the presence noise, affecting the efficiency of modeling the intricate temporal and spectral informative…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-13 Ioannis Ziogas , Hessa Alfalahi , Ahsan H. Khandoker , Leontios J. Hadjileontiadis

The ubiquitous presence of machine learning systems in our lives necessitates research into their vulnerabilities and appropriate countermeasures. In particular, we investigate the effectiveness of adversarial attacks and defenses against…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-28 Piotr Żelasko , Sonal Joshi , Yiwen Shao , Jesus Villalba , Jan Trmal , Najim Dehak , Sanjeev Khudanpur

Speaker identification models are vulnerable to carefully designed adversarial perturbations of their input signals that induce misclassification. In this work, we propose a white-box steganography-inspired adversarial attack that generates…

The modern generative audio models can be used by an adversary in an unlawful manner, specifically, to impersonate other people to gain access to private information. To mitigate this issue, speech deepfake detection (SDD) methods started…

Addressing the critical shortage of mental health resources for effective screening, diagnosis, and treatment remains a significant challenge. This scarcity underscores the need for innovative solutions, particularly in enhancing the…

Computation and Language · Computer Science 2024-02-15 Maneesh Bilalpur , Mert Inan , Dorsa Zeinali , Jeffrey F. Cohn , Malihe Alikhani

Recent advances in Speech Large Language Models (Speech LLMs) have led to great progress in speech understanding tasks such as Automatic Speech Recognition (ASR) and Speech Emotion Recognition (SER). However, whether these models can…

Sound · Computer Science 2025-12-01 Chen Li , Peiji Yang , Yicheng Zhong , Jianxing Yu , Zhisheng Wang , Zihao Gou , Wenqing Chen , Jian Yin

Audio self-supervised learning (SSL) aims to learn general-purpose representations from large-scale unlabeled audio data. While recent advances have been driven mainly by generative reconstruction objectives, contrastive approaches remain…

Machine Learning · Computer Science 2026-05-15 Hanxun Huang , Qizhou Wang , Xingjun Ma , Cihang Xie , Christopher Leckie , Sarah Erfani

In recent years, neural vocoders have surpassed classical speech generation approaches in naturalness and perceptual quality of the synthesized speech. Computationally heavy models like WaveNet and WaveGlow achieve best results, while…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Ahmed Mustafa , Nicola Pia , Guillaume Fuchs

We propose a novel framework for electrolaryngeal speech intelligibility enhancement through the use of robust linguistic encoders. Pretraining and fine-tuning approaches have proven to work well in this task, but in most cases, various…

The application of generative adversarial networks (GANs) has recently advanced speech super-resolution (SR) based on intermediate representations like mel-spectrograms. However, existing SR methods that typically rely on independently…

Sound · Computer Science 2025-01-20 Shengkui Zhao , Kun Zhou , Zexu Pan , Yukun Ma , Chong Zhang , Bin Ma

This paper proposes a flexible multichannel speech enhancement system with the main goal of improving robustness of automatic speech recognition (ASR) in noisy conditions. The proposed system combines a flexible neural mask estimator…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-10 Ante Jukić , Jagadeesh Balam , Boris Ginsburg

The promising performance of Deep Neural Networks (DNNs) in text classification, has attracted researchers to use them for fraud review detection. However, the lack of trusted labeled data has limited the performance of the current…

Machine Learning · Computer Science 2021-03-18 Saeedreza Shehnepoor , Roberto Togneri , Wei Liu , Mohammed Bennamoun

We propose a parallel-data-free voice-conversion (VC) method that can learn a mapping from source to target speech without relying on parallel data. The proposed method is general purpose, high quality, and parallel-data free and works…

Machine Learning · Statistics 2017-12-21 Takuhiro Kaneko , Hirokazu Kameoka

Recently, self-supervised learning methods based on masked latent prediction have proven to encode input data into powerful representations. However, during training, the learned latent space can be further transformed to extract…

Sound · Computer Science 2025-06-05 Aurian Quelennec , Pierre Chouteau , Geoffroy Peeters , Slim Essid
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