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Data Augmentation (DA) -- enriching training data by adding synthetic samples -- is a technique widely adopted in Computer Vision (CV) and Natural Language Processing (NLP) tasks to improve models performance. Yet, DA has struggled to gain…

Machine Learning · Computer Science 2024-01-24 Chao Wang , Alessandro Finamore , Pietro Michiardi , Massimo Gallo , Dario Rossi

Contrastive self-supervised learning (CSL) for speaker verification (SV) has drawn increasing interest recently due to its ability to exploit unlabeled data. Performing data augmentation on raw waveforms, such as adding noise or…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-12 Chong-Xin Gan , Man-Wai Mak , Weiwei Lin , Jen-Tzung Chien

In Speech Emotion Recognition (SER), emotional characteristics often appear in diverse forms of energy patterns in spectrograms. Typical attention neural network classifiers of SER are usually optimized on a fixed attention granularity. In…

Sound · Computer Science 2021-02-04 Mingke Xu , Fan Zhang , Xiaodong Cui , Wei Zhang

Data augmentation is a key tool for improving the performance of deep networks, particularly when there is limited labeled data. In some fields, such as computer vision, augmentation methods have been extensively studied; however, for…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-17 Zuzhao Ye , Gregory Ciccarelli , Brian Kulis

Applying changes to an input speech signal to change the perceived speaker of speech to a target while maintaining the content of the input is a challenging but interesting task known as Voice conversion (VC). Over the last few years, this…

Sound · Computer Science 2022-12-29 Olga Slizovskaia , Jordi Janer , Pritish Chandna , Oscar Mayor

Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

Computation and Language · Computer Science 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

Hate speech is one of the main threats posed by the widespread use of social networks, despite efforts to limit it. Although attention has been devoted to this issue, the lack of datasets and case studies centered around scarcely…

Computation and Language · Computer Science 2024-10-11 Camilla Casula , Sara Tonelli

In recent years, language models (LMs) have made remarkable progress in advancing the field of natural language processing (NLP). However, the impact of data augmentation (DA) techniques on the fine-tuning (FT) performance of these LMs has…

Computation and Language · Computer Science 2023-06-14 Zhengxiang Shi , Aldo Lipani

Most of the current speech data augmentation methods operate on either the raw waveform or the amplitude spectrum of speech. In this paper, we propose a novel speech data augmentation method called PhasePerturbation that operates…

Sound · Computer Science 2023-12-15 Chengxi Lei , Satwinder Singh , Feng Hou , Xiaoyun Jia , Ruili Wang

With the advances in deep learning, speech enhancement systems benefited from large neural network architectures and achieved state-of-the-art quality. However, speaker-agnostic methods are not always desirable, both in terms of quality and…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-15 Anastasia Kuznetsova , Aswin Sivaraman , Minje Kim

This paper investigates a self-adaptation method for speech enhancement using auxiliary speaker-aware features; we extract a speaker representation used for adaptation directly from the test utterance. Conventional studies of deep neural…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-17 Yuma Koizumi , Kohei Yatabe , Marc Delcroix , Yoshiki Masuyama , Daiki Takeuchi

The accuracy of modern automatic speaker verification (ASV) systems, when trained exclusively on adult data, drops substantially when applied to children's speech. The scarcity of children's speech corpora hinders fine-tuning ASV systems…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-26 Vishwanath Pratap Singh , Md Sahidullah , Tomi Kinnunen

This study focuses on the First VoicePrivacy Attacker Challenge within the ICASSP 2025 Signal Processing Grand Challenge, which aims to develop speaker verification systems capable of determining whether two anonymized speech signals are…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Yanzhe Zhang , Zhonghao Bi , Feiyang Xiao , Xuefeng Yang , Qiaoxi Zhu , Jian Guan

Building multispeaker neural network-based text-to-speech synthesis systems commonly relies on the availability of large amounts of high quality recordings from each speaker and conditioning the training process on the speaker's identity or…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-04 Beata Lorincz , Adriana Stan , Mircea Giurgiu

Speech technology has improved greatly for norm speakers, i.e., adult native speakers of a language without speech impediments or strong accents. However, non-norm or diverse speaker groups show a distinct performance gap with norm…

Computation and Language · Computer Science 2023-07-06 Tanvina Patel , Odette Scharenborg

Dysarthric speech recognition (DSR) research has witnessed remarkable progress in recent years, evolving from the basic understanding of individual words to the intricate comprehension of sentence-level expressions, all driven by the…

Sound · Computer Science 2025-10-21 Shiyao Wang , Shiwan Zhao , Jiaming Zhou , Yong Qin

Previous work on speaker adaptation for end-to-end speech synthesis still falls short in speaker similarity. We investigate an orthogonal approach to the current speaker adaptation paradigms, speaker augmentation, by creating artificial…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-10 Erica Cooper , Cheng-I Lai , Yusuke Yasuda , Junichi Yamagishi

Data augmentation is a technique to generate new training data based on existing data. We evaluate the simple and cost-effective method of concatenating the original data examples to build new training instances. Continued training with…

Computation and Language · Computer Science 2023-06-12 Tsz Kin Lam , Shigehiko Schamoni , Stefan Riezler

Steady-State Visual Evoked Potential (SSVEP) spellers are a promising communication tool for individuals with disabilities. This Brain-Computer Interface utilizes scalp potential data from (electroencephalography) EEG electrodes on a…

Human-Computer Interaction · Computer Science 2024-12-31 Joseph Zhang , Ruiming Zhang , Kipngeno Koech , David Hill , Kateryna Shapovalenko

Self-supervised representation learning (SSRL) has demonstrated superior performance than supervised models for tasks including phoneme recognition. Training SSRL models poses a challenge for low-resource languages where sufficient…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-02 Asad Ullah , Alessandro Ragano , Andrew Hines