Papers by Xize Cheng

21 papers
VoxpopuliTTS: a large-scale multilingual TTS corpus for zero-shot speech generation (2025.coling-main)

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Challenge: Existing multilingual TTS datasets are limited in speech generation fields due to lack of quality data.
Approach: They propose to use 30,000 hours of high-quality speech data across 3 languages . they filter out low-quality text-text pairs and concatenate short transcripts .
Outcome: The proposed dataset comprises 30,000 hours of high-quality speech data, across 3 languages with multiple speakers and styles, suitable for various speech tasks such as TTS and ASR.
CART: A Generative Cross-Modal Retrieval Framework With Coarse-To-Fine Semantic Modeling (2025.acl-long)

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Challenge: Cross-modal retrieval tasks are used to retrieve data from one modality or another based on a query from another modality.
Approach: They propose a generative cross-modal retrieval framework based on coarse-to-fine semantic modeling . they propose combining K-Means and RQ-VAE to discretize multimodal data into token sequences that support autoregressive generation.
Outcome: The proposed framework achieves excellent performance and efficiency in multimodal retrieval tasks.
OpenSR: Open-Modality Speech Recognition via Maintaining Multi-Modality Alignment (2023.acl-long)

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Challenge: Speech Recognition often gets stuck in the lack of new domain utterances when training a model of new-domain speech.
Approach: They propose a training system Open-modality Speech Recognition that enables zero-shot modality transfer . they use multi-modal alignment in phoneme space to maintain multi-modality alignment .
Outcome: The proposed system achieves zero-shot modality transfer compared to existing methods . it achieves state-of-the-art performance on audio-visual speech recognition and lip-reading with 2.7% and 25.0%, respectively.
Semantic-conditioned Dual Adaptation for Cross-domain Query-based Visual Segmentation (2023.findings-acl)

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Challenge: Existing approaches to visual segmentation from language queries require expensive labeling and degradation when deployed to an unseen domain.
Approach: They propose a task to adapt a visual segmentation model from a labeled domain to an unseen domain.
Outcome: The proposed framework achieves precise feature- and relation-invariant across domains via universal semantic structure.
SDiaReward: Modeling and Benchmarking Spoken Dialogue Rewards with Modality and Colloquialness (2026.acl-long)

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Challenge: SDiaReward is an end-to-end spoken dialogue system that integrates paralinguistic nuances and spontaneous nature of human conversation.
Approach: They propose an end-to-end multi-turn reward model trained on SDiaReward-Dataset . it is a collection of episode-level preference pairs targeting modality and colloquiality gaps .
Outcome: The proposed model outperforms general-purpose audio LLMs in episode-level evaluation.
TAVT: Towards Transferable Audio-Visual Text Generation (2023.acl-long)

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Challenge: Existing transfer learning techniques focus on uni-modal analysis and lack consideration of multi-modal content and cross-modal relation.
Approach: They propose a transferable audio-visual text generation framework that incorporates two components: Audio-Visual Meta-Mapper and Dual Counterfactual Contrastive Learning.
Outcome: The proposed framework outperforms the state-of-the-art methods across multiple domains and modal settings.
Masked Text-to-Audio Flow-Matching and Reward Feedback Optimization (2026.findings-acl)

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Challenge: Experimental results show that Flow-matching generative models can scale training by increasing data, computational resources, and model size.
Approach: They propose a flow-matching transformer with masked generative modeling for scaling text-to-audio inference-time prediction.
Outcome: The proposed model scales inference-time computations by masking generation and re-predicting them through iterative decoding.
Weakly-Supervised Spoken Video Grounding via Semantic Interaction Learning (2023.acl-long)

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Challenge: Recent work on spoken video grounding challenges extracting semantic information from speech . previous studies focused on textual queries, but recent work focuses on spoken queries .
Approach: They propose a framework for weakly-supervised spoken video grounding to represent cross-modal semantics without expensive temporal annotations.
Outcome: The proposed framework is more efficient than existing methods.
AudioVSR: Enhancing Video Speech Recognition with Audio Data (2024.emnlp-main)

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Challenge: Recent work has shown poor performance with non-Indo-European languages . previous work primarily utilizes video information to build VSR models .
Approach: They propose a generative model for data inflation that integrates synthetic data with authentic visual data to enhance the VSR model.
Outcome: The proposed model improves on the audio-visual alignment problem in audio-video tasks.
T2A-Feedback: Improving Basic Capabilities of Text-to-Audio Generation via Fine-grained AI Feedback (2025.acl-long)

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Challenge: Text-to-audio (T2A) models still struggle to satisfy human preferences for prompt-following and acoustic quality when generating complex multi-event audio.
Approach: They propose to use AI feedback learning to enhance basic capabilities of text-to-audio models . they use a large audio preference dataset to evaluate the model's capabilities .
Outcome: The proposed model improves in simple and complex scenarios with AI feedback learning.
PACHAT: Persona-Aware Speech Assistant for Multi-party Dialogue (2025.emnlp-main)

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Challenge: Extensive research on spoken dialogue systems has advanced the development of intelligent voice assistants, but integration of role information within speech remains an underexplored area.
Approach: They propose a language-based spoken dialogue system that integrates role information within speech to generate contextually appropriate responses.
Outcome: The proposed architecture achieves speaker-specific responses, character understanding, and the generation of targeted replies in multi-party dialogue scenarios, surpassing existing spoken dialogue systems.
Rhythm Controllable and Efficient Zero-Shot Voice Conversion via Shortcut Flow Matching (2025.acl-long)

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Challenge: Existing methods focus on disentangling speakers and content, while others focus on preserving the source's prosody.
Approach: They propose a rhythm-controllable and efficient zero-shot voice conversion model that transforms the source speaker’s timbre into an unseen one while retaining speech content.
Outcome: The proposed model adapts the linguistic content duration to the desired speaking style, facilitating the transfer of the target speaker’s rhythm.
Contrastive Token-Wise Meta-Learning for Unseen Performer Visual Temporal-Aligned Translation (2023.findings-acl)

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Challenge: a novel generalization framework for visual temporal-aligned translation is proposed to transfer recognition skills to unseen performers . ambiguity in the visual sequence can hinder current methods for visual language translation .
Approach: They propose a generalizable framework to transfer recognition skills to unseen performers . they use visual temporal-aligned translation to generate multiple words autoregressively .
Outcome: The proposed framework is generalized to transfer recognition skills to unseen performers . it is compared with existing methods on lipreading and fingerspelling datasets .
TransFace: Unit-Based Audio-Visual Speech Synthesizer for Talking Head Translation (2024.findings-acl)

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Challenge: Existing methods for talking head translation rely on cascading, resulting in delays and cascadic errors.
Approach: They propose a model for talking head translation, TransFace, which can translate audio-visual speech into audio-visual speech in other languages.
Outcome: The proposed model can translate audio-visual speech into audio-visual speech in other languages.
Rethinking the Multimodal Correlation of Multimodal Sequential Learning via Generalizable Attentional Results Alignment (2024.acl-long)

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Challenge: Existing studies have focused on the alignment of multimodal sequential learning using transformers.
Approach: They propose a constrained scheme to align the multiple attentional results from both local and global perspectives.
Outcome: The proposed scheme could align the multiple attentional results from both local and global perspectives, making the information capture more efficient.
ControlSpeech: Towards Simultaneous and Independent Zero-shot Speaker Cloning and Zero-shot Language Style Control (2025.acl-long)

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Challenge: Prior zero-shot TTS models only mimic the speaker’s voice without further control and adjustment capabilities while prior controllable TTS systems cannot perform speaker-specific voice generation.
Approach: They propose a style control module that captures codec representations corresponding to timbre, content, and style in a discrete decoupling codec space.
Outcome: The proposed system can fully clone the speaker's voice and perform speech-specific adjustment and control functions.
Uni-Dubbing: Zero-Shot Speech Synthesis from Visual Articulation (2024.acl-long)

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Challenge: Multimodal speech synthesis is a key challenge due to the scarcity of datasets that pair audio with corresponding video.
Approach: They propose a method that incorporates modality alignment during the pre-training phase on multimodal datasets and freezes the video modality extraction component and the encoder module within the pretrained weights.
Outcome: The proposed method achieves a reduced word error rate (WER) of 31.73%, surpassing the previous best of 33.9% with single-modality audio.
3DRP-Net: 3D Relative Position-aware Network for 3D Visual Grounding (2023.emnlp-main)

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Challenge: 3D visual grounding aims to localize the desired objects in a 3D point cloud by a free-form language description.
Approach: They propose a relation-aware framework which captures relative spatial relationships between objects and enhances object attributes.
Outcome: The proposed framework outperforms state-of-the-art methods on three benchmarks . it captures relative spatial relationships between objects and enhances object attributes .
AV-TranSpeech: Audio-Visual Robust Speech-to-Speech Translation (2023.acl-long)

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Challenge: Existing models for speech-to-speech translation suffer from distinct degradation in noisy environments and fail to translate visual speech.
Approach: They propose a text-based audio-visual speech-to-speech translation model that integrates visual information with audio-only data to improve system robustness.
Outcome: The proposed model outperforms models trained on audio-only corpus in two languages . it also improves with low-resource audio-visual data, compared with baselines .
Text-to-Song: Towards Controllable Music Generation Incorporating Vocal and Accompaniment (2024.acl-long)

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Challenge: Existing studies focus on singing voice synthesis and music generation independently.
Approach: They propose a novel task called Text-to-Song synthesis which incorporates both vocal and accompaniment generation.
Outcome: The proposed method can synthesize songs with comparable quality and style consistency.
Wav2SQL: Direct Generalizable Speech-To-SQL Parsing (2024.findings-acl)

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Challenge: Existing models for speech-driven SQL parsing are based on a cascaded approach, resulting in data scarcity and inconsistent performance.
Approach: They propose a direct generalizable speech-to-SQL parsing model which avoids error compounding across cascaded systems.
Outcome: The proposed model avoids error compounding and achieves state-of-the-art results by 4.7% improvement over baseline.

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