activity
20242026
collaborators

15 papers

eess.AS2026

Not All Attacks Are Learned Equally in Speech Deepfake Detection

Avantika Singh, Aurosweta Mahapatra, Ismail Rasim Ulgen +3

Speech deepfake detection (SDD) models are trained on multi-attack datasets containing diverse spoofing systems, such as text-to-speech (TTS) and voice conversion (VC). In standard…

eess.AS2026

AffectDF: The Most Comprehensive Benchmark for Speech Deepfake Detection against Emotionally Expressive Attacks

Aurosweta Mahapatra, Xiutian Zhao, Shreeram Suresh Chandra +7

Speech deepfake detection (SDD) systems achieve strong performance on conventional benchmarks; however, existing datasets provide limited coverage of emotionally expressive and rec…

eess.AS2026

Multimodal Speaker Verification as a Threat to Speaker Anonymization

Ashi Garg, Cristina Aggazzotti, Leibny Paola García-Perera +1

Most automatic speaker verification (ASV) systems operate on individual utterances, despite real-world interactions typically consisting of multiple utterances. As speech accumulat…

eess.AS2026

ProSDD: Learning Prosodic Representations for Speech Deepfake Detection against Expressive and Emotional Attacks

Aurosweta Mahapatra, Ismail Rasim Ulgen, Kong Aik Lee +2

Speech deepfake detection (SDD) systems perform well on standard benchmarks datasets but often fail to generalize to expressive and emotional spoofing attacks. Many methods rely on…

eess.AS2026

DiffAnon: Diffusion-based Prosody Control for Voice Anonymization

Ismail Rasim Ulgen, Zexin Cai, Nicholas Andrews +2

To preserve or not to preserve prosody is a central question in voice anonymization. Prosody conveys meaning and affect, yet is tightly coupled with speaker identity. Existing meth…

eess.AS2026

Integrated Spoofing-Robust Automatic Speaker Verification via a Three-Class Formulation and LLR

Kai Tan, Lin Zhang, Ruiteng Zhang +6

Spoofing-robust automatic speaker verification (SASV) aims to integrate automatic speaker verification (ASV) and countermeasure (CM). A popular solution is fusion of independent AS…

eess.AS2026

Can LLMs Help Localize Fake Words in Partially Fake Speech?

Lin Zhang, Thomas Thebaud, Zexin Cai +5

Large language models (LLMs), trained on large-scale text, have recently attracted significant attention for their strong performance across many tasks. Motivated by this, we inves…

eess.AS2026

Universal Speech Content Factorization

Henry Li Xinyuan, Zexin Cai, Lin Zhang +5

We propose Universal Speech Content Factorization (USCF), a simple and invertible linear method for extracting a low-rank speech representation in which speaker timbre is suppresse…

eess.AS2025

Rapidly Adapting to New Voice Spoofing: Few-Shot Detection of Synthesized Speech Under Distribution Shifts

Ashi Garg, Zexin Cai, Henry Li Xinyuan +5

We address the challenge of detecting synthesized speech under distribution shifts -- arising from unseen synthesis methods, speakers, languages, or audio conditions -- relative to…

eess.AS2025

Scalable Controllable Accented TTS

Henry Li Xinyuan, Zexin Cai, Ashi Garg +5

We tackle the challenge of scaling accented TTS systems, expanding their capabilities to include much larger amounts of training data and a wider variety of accent labels, even for…

cs.CL2025

Uncertainty Distillation: Teaching Language Models to Express Semantic Confidence

Sophia Hager, David Mueller, Kevin Duh +1

As large language models (LLMs) are increasingly used for factual question-answering, it becomes more important for LLMs to have the capability to communicate the likelihood that t…

eess.AS2025

ShiftySpeech: A Large-Scale Synthetic Speech Dataset with Distribution Shifts

Ashi Garg, Zexin Cai, Lin Zhang +6

The problem of synthetic speech detection has enjoyed considerable attention, with recent methods achieving low error rates across several established benchmarks. However, to what…

eess.AS2025

GenVC: Self-Supervised Zero-Shot Voice Conversion

Zexin Cai, Henry Li Xinyuan, Ashi Garg +5

Most current zero-shot voice conversion methods rely on externally supervised components, particularly speaker encoders, for training. To explore alternatives that eliminate this d…

eess.AS2024

HLTCOE JHU Submission to the Voice Privacy Challenge 2024

Henry Li Xinyuan, Zexin Cai, Ashi Garg +5

We present a number of systems for the Voice Privacy Challenge, including voice conversion based systems such as the kNN-VC method and the WavLM voice Conversion method, and text-t…

eess.AS2024

Privacy versus Emotion Preservation Trade-offs in Emotion-Preserving Speaker Anonymization

Zexin Cai, Henry Li Xinyuan, Ashi Garg +5

Advances in speech technology now allow unprecedented access to personally identifiable information through speech. To protect such information, the differential privacy field has…