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Wei-Ning Hsu

39 accepted papers

2026

MR-FLOWDPO: MULTI-REWARD DIRECT PREFERENCE OPTIMIZATION FOR FLOW-MATCHING TEXT-TO-MUSIC GENERATION

ICASSP 2026oral

A key challenge in music generation models is their lack of direct alignment with human preferences, as music evaluation is inherently subjective and varies widely across individuals. We introduce MR-FlowDPO, a novel approach that enhances flow-matching-based music generation models - a major class…

Cited by 0SourcePDFScholar
2026

Pushing the Frontier of Audiovisual Perception with Large-Scale Multimodal Correspondence Learning

CVPR 2026

We introduce Perception Encoder-Audiovisual, PE-AV, a new family of encoders for audio and video understanding trained with scaled contrastive learning. Building on PE, PE-AV makes several key contributions to extend representations to audio, and natively support joint embeddings across audio-video,

Cited by 0SourcecodeScholar
2025

FlowDec: A flow-based full-band general audio codec with high perceptual quality

ICLR 2025poster

We propose FlowDec, a neural full-band audio codec for general audio sampled at 48 kHz that combines non-adversarial codec training with a stochastic postfilter based on a novel conditional flow matching method. Compared to the prior work ScoreDec which is based on score matching, we generalize from…

2024

Action2Sound: Ambient-Aware Generation of Action Sounds from Egocentric Videos

ECCV 2024oral

"Generating realistic audio for human actions is important for many applications, such as creating sound effects for films or virtual reality games. Existing approaches implicitly assume total correspondence between the video and audio during training, yet many sounds happen off-screen and have weak…

2024

Generative Pre-training for Speech with Flow Matching

ICLR 2024poster

Generative models have gained more and more attention in recent years for their remarkable success in tasks that required estimating and sampling data distribution to generate high-fidelity synthetic data. In speech, text-to-speech synthesis and neural vocoder are good examples where generative mode…

Cited by 34SourcePDFScholar
2024

M2BART: Multilingual and Multimodal Encoder-Decoder Pre-Training for Any-to-Any Machine Translation

ICASSP 2024accepted

Speech and language models are advancing towards universality. A single model can now handle translations across 200 languages and transcriptions for over 100 languages. Universal models simplify development, deployment, and importantly, transfer knowledge to less-resourced languages or modes. This…

Cited by 0SourceScholar
2024

MusicFlow: Cascaded Flow Matching for Text Guided Music Generation

ICML 2024poster

We introduce MusicFlow, a cascaded text-to-music generation model based on flow matching. Based on self-supervised representations to bridge between text descriptions and music audios, we construct two flow matching networks to model the conditional distribution of semantic and acoustic features. Ad…

Cited by 9SourcePDFScholar
2024

XLAVS-R: Cross-Lingual Audio-Visual Speech Representation Learning for Noise-Robust Speech Perception

ACL 2024long

Speech recognition and translation systems perform poorly on noisy inputs, which are frequent in realistic environments. Augmenting these systems with visual signals has the potential to improve robustness to noise. However, audio-visual (AV) data is only available in limited amounts and for fewer l…

Cited by 6SourcePDFScholar
2023

Cocktail Hubert: Generalized Self-Supervised Pre-Training for Mixture and Single-Source Speech

ICASSP 2023accepted

Self-supervised learning leverages unlabeled data effectively, improving label efficiency and generalization to domains without labeled data. While recent work has studied generalization to more acoustic/linguistic domains, languages, and modalities, these investigations are limited to single-source…

Cited by 0SourceScholar
2023

Continual Learning for On-Device Speech Recognition Using Disentangled Conformers

ICASSP 2023accepted

Automatic speech recognition research focuses on training and evaluating on static datasets. Yet, as speech models are increasingly deployed on personal devices, such models encounter user-specific distributional shifts. To simulate this real-world scenario, we introduce LibriContinual, a continual…

Cited by 0SourceScholar
2023

DinoSR: Self-Distillation and Online Clustering for Self-supervised Speech Representation Learning

NeurIPS 2023poster

In this paper, we introduce self-distillation and online clustering for self-supervised speech representation learning (DinoSR) which combines masked language modeling, self-distillation, and online clustering. We show that these concepts complement each other and result in a strong representation l…

2023

Do Coarser Units Benefit Cluster Prediction-Based Speech Pre-Training?

ICASSP 2023accepted

The research community has produced many successful self-supervised speech representation learning methods over the past few years. Discrete units have been utilized in various self-supervised learning frameworks, such as VQ-VAE [1], wav2vec 2.0 [2], Hu-BERT [3], and Wav2Seq [4]. This paper studies…

Cited by 0SourceScholar
2023

Efficient Self-supervised Learning with Contextualized Target Representations for Vision, Speech and Language

ICML 2023oral

Current self-supervised learning algorithms are often modality-specific and require large amounts of computational resources. To address these issues, we increase the training efficiency of data2vec, a learning objective that generalizes across several modalities. We do not encode masked tokens, use…

2023

ReVISE: Self-Supervised Speech Resynthesis With Visual Input for Universal and Generalized Speech Regeneration

CVPR 2023poster

Prior works on improving speech quality with visual input typically study each type of auditory distortion separately (e.g., separation, inpainting, video-to-speech) and present tailored algorithms. This paper proposes to unify these subjects and study Generalized Speech Regeneration, where the goal…

2023

Scaling Laws for Generative Mixed-Modal Language Models

ICML 2023poster

Generative language models define distributions over sequences of tokens that can represent essentially any combination of data modalities (e.g., any permutation of image tokens from VQ-VAEs, speech tokens from HuBERT, BPE tokens for language or code, and so on). To better understand the scaling pro…

Cited by 104SourcePDFScholar
2023

Simple and Effective Unsupervised Speech Translation

ACL 2023long

The amount of labeled data to train models for speech tasks is limited for most languages, however, the data scarcity is exacerbated for speech translation which requires labeled data covering two different languages. To address this issue, we study a simple and effective approach to build speech tr…

2023

Speech-to-Speech Translation for a Real-world Unwritten Language

ACL 2023findings

We study speech-to-speech translation (S2ST) that translates speech from one language into another language and focuses on building systems to support languages without standard text writing systems. We use English-Taiwanese Hokkien as a case study, and present an end-to-end solution from training d…

2023

Toward Joint Language Modeling for Speech Units and Text

EMNLP 2023long findings

Speech and text are two major forms of human language. The research community has been focusing on mapping speech to text or vice versa for many years. However, in the field of language modeling, very little effort has been made to model them jointly. In light of this, we explore joint language mode…

Cited by 0SourceScholar
2023

Voicebox: Text-Guided Multilingual Universal Speech Generation at Scale

NeurIPS 2023poster

Large-scale generative models such as GPT and DALL-E have revolutionized the research community. These models not only generate high fidelity outputs, but are also generalists which can solve tasks not explicitly taught. In contrast, speech generative models are still primitive in terms of scale and…

Cited by 299SourcePDFScholar
2022

Direct Speech-to-Speech Translation With Discrete Units

ACL 2022long

We present a direct speech-to-speech translation (S2ST) model that translates speech from one language to speech in another language without relying on intermediate text generation. We tackle the problem by first applying a self-supervised discrete speech encoder on the target speech and then traini…

2022

Learning Audio-Visual Speech Representation by Masked Multimodal Cluster Prediction

ICLR 2022poster

Video recordings of speech contain correlated audio and visual information, providing a strong signal for speech representation learning from the speaker’s lip movements and the produced sound. We introduce Audio-Visual Hidden Unit BERT (AV-HuBERT), a self-supervised representation learning framewor…

2022

Text-Free Prosody-Aware Generative Spoken Language Modeling

ACL 2022long

Speech pre-training has primarily demonstrated efficacy on classification tasks, while its capability of generating novel speech, similar to how GPT-2 can generate coherent paragraphs, has barely been explored. Generative Spoken Language Modeling (GSLM) (CITATION) is the only prior work addressing t…

2022

Textless Speech Emotion Conversion using Discrete & Decomposed Representations

EMNLP 2022main

Speech emotion conversion is the task of modifying the perceived emotion of a speech utterance while preserving the lexical content and speaker identity. In this study, we cast the problem of emotion conversion as a spoken language translation task. We use a decomposition of the speech signal into d…

2022

Textless Speech-to-Speech Translation on Real Data

NAACL 2022long

We present a textless speech-to-speech translation (S2ST) system that can translate speech from one language into another language and can be built without the need of any text data. Different from existing work in the literature, we tackle the challenge in modeling multi-speaker target speech and t…

Cited by 157SourcePDFScholar
2022

Unified Speech-Text Pre-training for Speech Translation and Recognition

ACL 2022long

In this work, we describe a method to jointly pre-train speech and text in an encoder-decoder modeling framework for speech translation and recognition. The proposed method utilizes multi-task learning to integrate four self-supervised and supervised subtasks for cross modality learning. A self-supe…

2022

data2vec: A General Framework for Self-supervised Learning in Speech, Vision and Language

ICML 2022oral

While the general idea of self-supervised learning is identical across modalities, the actual algorithms and objectives differ widely because they were developed with a single modality in mind. To get us closer to general self-supervised learning, we present data2vec, a framework that uses the same…

2022

textless-lib: a Library for Textless Spoken Language Processing

NAACL 2022system demonstrations

Textless spoken language processing is an exciting area of research that promises to extend applicability of the standard NLP toolset onto spoken language and languages with few or no textual resources. Here, we introduce textless-lib, a PyTorch-based library aimed to facilitate research in the area…

2022

u-HuBERT: Unified Mixed-Modal Speech Pretraining And Zero-Shot Transfer to Unlabeled Modality

NeurIPS 2022accept

While audio-visual speech models can yield superior performance and robustness compared to audio-only models, their development and adoption are hindered by the lack of labeled and unlabeled audio-visual data and the cost to deploy one model per modality. In this paper, we present u-HuBERT, a self-s…

2021

Hubert: How Much Can a Bad Teacher Benefit ASR Pre-Training?

ICASSP 2021accepted

Compared to vision and language applications, self-supervised pre-training approaches for ASR are challenged by three unique problems: (1) There are multiple sound units in each input utterance, (2) With audio-only pre-training, there is no lexicon of sound units, and (3) Sound units have variable l…

Cited by 0SourceScholar
2021

Text-Free Image-to-Speech Synthesis Using Learned Segmental Units

ACL 2021long

In this paper we present the first model for directly synthesizing fluent, natural-sounding spoken audio captions for images that does not require natural language text as an intermediate representation or source of supervision. Instead, we connect the image captioning module and the speech synthesi…

2021

fairseq Sˆ2: A Scalable and Integrable Speech Synthesis Toolkit

EMNLP 2021system demonstrations

This paper presents fairseq Sˆ2, a fairseq extension for speech synthesis. We implement a number of autoregressive (AR) and non-AR text-to-speech models, and their multi-speaker variants. To enable training speech synthesis models with less curated data, a number of preprocessing tools are built and…

2019

Disentangling Correlated Speaker and Noise for Speech Synthesis via Data Augmentation and Adversarial Factorization

ICASSP 2019accepted

To leverage crowd-sourced data to train multi-speaker text-to-speech (TTS) models that can synthesize clean speech for all speakers, it is essential to learn disentangled representations which can independently control the speaker identity and background noise in generated signals. However, learning…

Cited by 0SourceScholar
2019

Hierarchical Generative Modeling for Controllable Speech Synthesis

ICLR 2019poster

This paper proposes a neural end-to-end text-to-speech (TTS) model which can control latent attributes in the generated speech that are rarely annotated in the training data, such as speaking style, accent, background noise, and recording conditions. The model is formulated as a conditional generati…

Cited by 297SourcePDFScholar
2019

Semi-supervised Training for Improving Data Efficiency in End-to-end Speech Synthesis

ICASSP 2019accepted

Although end-to-end text-to-speech (TTS) models such as Tacotron have shown excellent results, they typically require a sizable set of high-quality <;text, audio> pairs for training, which are expensive to collect. In this paper, we propose a semi-supervised training framework to improve the data ef…

Cited by 0SourceScholar
2018

Extracting Domain Invariant Features by Unsupervised Learning for Robust Automatic Speech Recognition

ICASSP 2018accepted

The performance of automatic speech recognition (ASR) systems can be significantly compromised by previously unseen conditions, which is typically due to a mismatch between training and testing distributions. In this paper, we address robustness by studying domain invariant features, such that domai…

Cited by 0SourceScholar
2017

Unsupervised Learning of Disentangled and Interpretable Representations from Sequential Data

NeurIPS 2017poster

We present a factorized hierarchical variational autoencoder, which learns disentangled and interpretable representations from sequential data without supervision. Specifically, we exploit the multi-scale nature of information in sequential data by formulating it explicitly within a factorized hiera…

2015

Enhancing automatically discovered multi-level acoustic patterns considering context consistency with applications in spoken term detection

ICASSP 2015accepted

This paper presents a novel approach for enhancing the multiple sets of acoustic patterns automatically discovered from a given corpus. In a previous work it was proposed that different HMM configurations (number of states per model, number of distinct models) for the acoustic patterns form a two-di…

Cited by 0SourceScholar