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Songjun Cao

5 accepted papers

2026

Detect All-Type Deepfake Audio: Wavelet Prompt Tuning for Enhanced Auditory Perception

AAAI 2026technical

The rapid advancement of audio generation technologies has escalated the risks of malicious deepfake audio across speech, sound, singing voice, and music, threatening multimedia security and trust. While existing countermeasures (CMs) perform well in single-type audio deepfake detection (ADD), their

Cited by 0SourcePDFScholar
2026

LEVERAGING LARGE MULTIMODAL MODELS FOR AUDIO-VIDEO DEEPFAKE DETECTION: A PILOT STUDY

ICASSP 2026oral

Audio-visual deepfake detection (AVD) is increasingly important as modern generators can fabricate convincing speech and video. Most current multimodal detectors are small, task-specific models: they work well on curated tests but scale poorly and generalize weakly across domains. We introduce AV-LM…

Cited by 0SourcePDFScholar
2025

DiffCSS: Diverse and Expressive Conversational Speech Synthesis with Diffusion Models

ICASSP 2025accepted

Conversational speech synthesis (CSS) aims to synthesize both contextually appropriate and expressive speech, and considerable efforts have been made to enhance the understanding of conversational context. However, existing CSS systems are limited to deterministic prediction, overlooking the diversi…

Cited by 0SourceScholar
2025

M-MoE: Mixture of Mixture-of-Expert Model for CTC-based Streaming Multilingual ASR

ICASSP 2025accepted

The Mixture-of-Expert (MoE) structure has been effectively utilized in multilingual ASR tasks. However, the potential of external language information remains underutilized. In this paper, we introduce the Mixture of MoE (M-MoE) structure, featuring multiple language-specific MoEs and a language-unk…

Cited by 0SourceScholar
2022

Improving CTC-Based Speech Recognition Via Knowledge Transferring from Pre-Trained Language Models

ICASSP 2022accepted

Recently, end-to-end automatic speech recognition models based on connectionist temporal classification (CTC) have achieved impressive results, especially when fine-tuned from wav2vec2.0 models. Due to the conditional independence assumption, CTC-based models are always weaker than attention-based e…

Cited by 35SourceScholar