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Jungwoo Heo

5 accepted papers

2026

DIFFUSION-LINK: DIFFUSION PROBABILISTIC MODEL FOR BRIDGING THE AUDIO-TEXT MODALITY GAP

ICASSP 2026poster

Contrastive audio-language pretraining yields powerful joint representations, yet a persistent audio-text modality gap limits the benefits of coupling multimodal encoders with large language models (LLMs). We present Diffusion-Link, a diffusion-based modality-bridging module that generatively maps a…

Cited by 0SourcePDFScholar
2024

Diff-SV: A Unified Hierarchical Framework for Noise-Robust Speaker Verification Using Score-Based Diffusion Probabilistic Models

ICASSP 2024accepted

Background noise considerably reduces the accuracy and reliability of speaker verification (SV) systems. These challenges can be addressed using a speech enhancement system as a front-end module. Recently, diffusion probabilistic models (DPMs) have exhibited remarkable noise-compensation capabilitie…

Cited by 0SourceScholar
2024

HM-CONFORMER: A Conformer-Based Audio Deepfake Detection System with Hierarchical Pooling and Multi-Level Classification Token Aggregation Methods

ICASSP 2024accepted

Audio deepfake detection (ADD) is the task of detecting spoofing attacks generated by text-to-speech or voice conversion systems. Spoofing evidence, which helps to distinguish between spoofed and bona-fide utterances, might exist either locally or globally in the input features. To capture these, th…

Cited by 0SourceScholar
2022

Graph Attentive Feature Aggregation for Text-Independent Speaker Verification

ICASSP 2022accepted

The objective of this paper is to combine multiple frame-level features into a single utterance-level representation considering pair-wise relationships. For this purpose, we propose a novel graph attentive feature aggregation module by interpreting each frame-level feature as a node of a graph. The…

Cited by 0SourceScholar
2022

RawNeXt: Speaker Verification System For Variable-Duration Utterances With Deep Layer Aggregation And Extended Dynamic Scaling Policies

ICASSP 2022accepted

Despite achieving satisfactory performance in speaker verification using deep neural networks, variable-duration utterances remain a challenge that threatens the robustness of systems. To deal with this issue, we propose a speaker verification system called RawNeXt that can handle input raw waveform…

Cited by 0SourceScholar