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Shengpeng Ji

24 accepted papers

2025

AHa-Bench: Benchmarking Audio Hallucinations in Large Audio-Language Models

NeurIPS 2025poster

Hallucinations present a significant challenge in the development and evaluation of large language models (LLMs), directly affecting their reliability and accuracy. While notable advancements have been made in research on textual and visual hallucinations, there is still a lack of a comprehensive be…

Cited by 0SourceScholar
2025

CART: A Generative Cross-Modal Retrieval Framework With Coarse-To-Fine Semantic Modeling

ACL 2025long

Cross-modal retrieval aims to search for instances, which are semantically related to the query through the interaction of different modal data. Traditional solutions utilize a single-tower or dual-tower framework to explicitly compute the score between queries and candidates, which is challenged by…

Cited by 0SourcePDFScholar
2025

ControlSpeech: Towards Simultaneous and Independent Zero-shot Speaker Cloning and Zero-shot Language Style Control

ACL 2025long

In this paper, we present ControlSpeech, a text-to-speech (TTS) system capable of fully cloning the speaker’s voice and enabling arbitrary control and adjustment of speaking style. Prior zero-shot TTS models only mimic the speaker’s voice without further control and adjustment capabilities while pri…

2025

Enhancing Expressive Voice Conversion with Discrete Pitch-Conditioned Flow Matching Model

ICASSP 2025accepted

This paper introduces PFlow-VC, a conditional flow matching voice conversion model that leverages fine-grained discrete pitch tokens and target speaker prompt information for expressive voice conversion (VC). Previous VC works primarily focus on speaker conversion, with further exploration needed in…

Cited by 0SourceScholar
2025

Enhancing Multimodal Unified Representations for Cross Modal Generalization

ACL 2025finding

To enhance the interpretability of multimodal unified representations, many studies have focused on discrete unified representations. These efforts typically start with contrastive learning and gradually extend to the disentanglement of modal information, achieving solid multimodal discrete unified…

2025

IRBridge: Solving Image Restoration Bridge with Pre-trained Generative Diffusion Models

ICML 2025poster

Bridge models in image restoration construct a diffusion process from degraded to clear images. However, existing methods typically require training a bridge model from scratch for each specific type of degradation, resulting in high computational costs and limited performance. This work aims to eff…

2025

InSerter: Speech Instruction Following with Unsupervised Interleaved Pre-training

ACL 2025long

Recent advancements in speech large language models (SpeechLLMs) have attracted considerable attention. Nonetheless, current methods exhibit suboptimal performance in adhering to speech instructions. Notably, the intelligence of models significantly diminishes when processing speech-form input as co…

2025

InteractSpeech: A Speech Dialogue Interaction Corpus for Spoken Dialogue Model

EMNLP 2025

Spoken Dialogue Models (SDMs) have achieved significant progress in recent years, yet they continue to face challenges in handling nuanced interactional phenomena. A significant bottleneck hindering further advancement is the scarcity of publicly available, high-quality datasets meticulously designe

2025

Language-Codec: Bridging Discrete Codec Representations and Speech Language Models

ACL 2025long

In recent years, large language models have achieved significant success in generative tasks (e.g., speech cloning and audio generation) related to speech, audio, music, and other signal domains. A crucial element of these models is the discrete acoustic codecs, which serve as an intermediate repres…

2025

OmniBind: Large-scale Omni Multimodal Representation via Binding Spaces

ICLR 2025poster

Recently, human-computer interaction with various modalities has shown promising applications, like GPT-4o and Gemini. Meanwhile, multimodal representation models have emerged as the foundation for these versatile multimodal understanding and generation pipeline. Models like CLIP, CLAP and ImageBind…

Cited by 11SourcePDFScholar
2025

OmniSep: Unified Omni-Modality Sound Separation with Query-Mixup

ICLR 2025poster

Query-based sound separation (QSS) effectively isolate sound signals that match the content of a given query, enhancing the understanding of audio data. However, most existing QSS methods rely on a single modality for separation, lacking the ability to fully leverage homologous but heterogeneous inf…

2025

Rhythm Controllable and Efficient Zero-Shot Voice Conversion via Shortcut Flow Matching

ACL 2025long

Zero-Shot Voice Conversion (VC) aims to transform the source speaker’s timbre into an arbitrary unseen one while retaining speech content. Most prior work focuses on preserving the source’s prosody, while fine-grained timbre information may leak through prosody, and transferring target prosody to sy…

2025

SpatialCLIP: Learning 3D-aware Image Representations from Spatially Discriminative Language

CVPR 2025poster

Contrastive Language-Image Pre-training (CLIP) learns robust visual models through language supervision, making it a crucial visual encoding technique for various applications. However, CLIP struggles with comprehending spatial concepts in images, potentially restricting the spatial intelligence of…

2025

Speech Watermarking with Discrete Intermediate Representations

AAAI 2025technical

Speech watermarking techniques can proactively mitigate the potential harmful consequences of instant voice cloning techniques. These techniques involve the insertion of signals into speech that are imperceptible to humans but can be detected by algorithms. Previous approaches typically embed waterm…

Cited by 1SourcePDFScholar
2025

T2A-Feedback: Improving Basic Capabilities of Text-to-Audio Generation via Fine-grained AI Feedback

ACL 2025long

Text-to-audio (T2A) generation has achieved remarkable progress in generating a variety of audio outputs from language prompts. However, current state-of-the-art T2A models still struggle to satisfy human preferences for prompt-following and acoustic quality when generating complex multi-event audio…

Cited by 0SourcePDFScholar
2025

UniCodec: Unified Audio Codec with Single Domain-Adaptive Codebook

ACL 2025long

The emergence of audio language models is empowered by neural audio codecs, which establish critical mappings between continuous waveforms and discrete tokens compatible with language model paradigms. The evolutionary trends from multi-layer residual vector quantizer to single-layer quantizer are be…

2025

VoxDialogue: Can Spoken Dialogue Systems Understand Information Beyond Words?

ICLR 2025poster

With the rapid advancement of large models, voice assistants are gradually acquiring the ability to engage in open-ended daily conversations with humans. However, current spoken dialogue systems often overlook multi-modal information in audio beyond text, such as speech rate, volume, emphasis, and b…

2025

VoxpopuliTTS: a large-scale multilingual TTS corpus for zero-shot speech generation

COLING 2025main

In recent years, speech generation fields have achieved significant advancements, primarily due to improvements in large TTS (text-to-speech) systems and scalable TTS datasets. However, there is still a lack of large-scale multilingual TTS datasets, which limits the development of cross-language and…

Cited by 0SourcePDFScholar
2025

WavRAG: Audio-Integrated Retrieval Augmented Generation for Spoken Dialogue Models

ACL 2025long

Retrieval Augmented Generation (RAG) has gained widespread adoption owing to its capacity to empower large language models (LLMs) to integrate external knowledge. However, existing RAG frameworks are primarily designed for text-based LLMs and rely on Automatic Speech Recognition to process speech in…

Cited by 0SourcePDFScholar
2025

WavTokenizer: an Efficient Acoustic Discrete Codec Tokenizer for Audio Language Modeling

ICLR 2025poster

Language models have been effectively applied to modeling natural signals, such as images, video, speech, and audio. A crucial component of these models is the codec tokenizer, which compresses high-dimensional natural signals into lower-dimensional discrete tokens. In this paper, we introduce WavTo…

2024

AudioVSR: Enhancing Video Speech Recognition with Audio Data

EMNLP 2024main

Visual Speech Recognition (VSR) aims to predict spoken content by analyzing lip movements in videos. Recently reported state-of-the-art results in VSR often rely on increasingly large amounts of video data, while the publicly available transcribed video datasets are insufficient compared to the audi…

Cited by 1SourcePDFScholar
2024

Mega-TTS 2: Boosting Prompting Mechanisms for Zero-Shot Speech Synthesis

ICLR 2024poster

Zero-shot text-to-speech (TTS) aims to synthesize voices with unseen speech prompts, which significantly reduces the data and computation requirements for voice cloning by skipping the fine-tuning process. However, the prompting mechanisms of zero-shot TTS still face challenges in the following aspe…

2024

MobileSpeech: A Fast and High-Fidelity Framework for Mobile Zero-Shot Text-to-Speech

ACL 2024long

Zero-shot text-to-speech (TTS) has gained significant attention due to its powerful voice cloning capabilities, requiring only a few seconds of unseen speaker voice prompts. However, all previous work has been developed for cloud-based systems. Taking autoregressive models as an example, although th…

2024

TextrolSpeech: A Text Style Control Speech Corpus with Codec Language Text-to-Speech Models

ICASSP 2024accepted

Recently, there has been a growing interest in the field of controllable Text-to-Speech (TTS). While previous studies have relied on users providing specific style factor values based on acoustic knowledge or selecting reference speeches that meet certain requirements, generating speech solely from…

Cited by 0SourceScholar