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Yichong Leng

19 accepted papers

2025

MoonCast: High-Quality Zero-Shot Podcast Generation

NeurIPS 2025poster

Recent advances in text-to-speech synthesis have achieved notable success in generating high-quality short utterances for individual speakers. However, these systems still face challenges when extending their capabilities to long, multi-speaker, and spontaneous dialogues, typical of real-world scena…

Cited by 0SourcecodeScholar
2025

The Best of Both Worlds: Integrating Language Models and Diffusion Models for Video Generation

ICCV 2025poster

Recent advancements in text-to-video (T2V) generation have been driven by two competing paradigms: autoregressive language models and diffusion models. However, each paradigm has intrinsic limitations: language models struggle with visual quality and error accumulation, while diffusion models lack s…

2024

AIR-Bench: Benchmarking Large Audio-Language Models via Generative Comprehension

ACL 2024long

Recently, instruction-following audio-language models have received broad attention for human-audio interaction. However, the absence of benchmarks capable of evaluating audio-centric interaction capabilities has impeded advancements in this field. Previous models primarily focus on assessing differ…

2024

NaturalSpeech 2: Latent Diffusion Models are Natural and Zero-Shot Speech and Singing Synthesizers

ICLR 2024spotlight

Scaling text-to-speech (TTS) to large-scale, multi-speaker, and in-the-wild datasets is important to capture the diversity in human speech such as speaker identities, prosodies, and styles (e.g., singing). Current large TTS systems usually quantize speech into discrete tokens and use language models…

2024

NaturalSpeech 3: Zero-Shot Speech Synthesis with Factorized Codec and Diffusion Models

ICML 2024oral

While recent large-scale text-to-speech (TTS) models have achieved significant progress, they still fall shorts in speech quality, similarity, and prosody. Considering that speech intricately encompasses various attributes (e.g., content, prosody, timbre, and acoustic details) that pose significant…

Cited by 172SourcePDFScholar
2024

PromptTTS 2: Describing and Generating Voices with Text Prompt

ICLR 2024poster

Speech conveys more information than text, as the same word can be uttered in various voices to convey diverse information. Compared to traditional text-to-speech (TTS) methods relying on speech prompts (reference speech) for voice variability, using text prompts (descriptions) is more user-friendly…

2024

Sentence-Level or Token-Level? A Comprehensive Study on Knowledge Distillation

IJCAI 2024poster

Knowledge distillation, transferring knowledge from a teacher model to a student model, has emerged as a powerful technique in neural machine translation for compressing models or simplifying training targets. Knowledge distillation encompasses two primary methods: sentence-level distillation and to…

2023

Extract and Attend: Improving Entity Translation in Neural Machine Translation

ACL 2023findings

While Neural Machine Translation (NMT) has achieved great progress in recent years, it still suffers from inaccurate translation of entities (e.g., person/organization name, location), due to the lack of entity training instances. When we humans encounter an unknown entity during translation, we usu…

2023

Prompttts: Controllable Text-To-Speech With Text Descriptions

ICASSP 2023accepted

Using a text description as prompt to guide the generation of text or images (e.g., GPT-3 or DALLE-2) has drawn wide attention recently. Beyond text and image generation, in this work, we explore the possibility of utilizing text descriptions to guide speech synthesis. Thus, we develop a text-to-spe…

Cited by 0SourceScholar
2023

SoftCorrect: Error Correction with Soft Detection for Automatic Speech Recognition

AAAI 2023technical

Error correction in automatic speech recognition (ASR) aims to correct those incorrect words in sentences generated by ASR models. Since recent ASR models usually have low word error rate (WER), to avoid affecting originally correct tokens, error correction models should only modify incorrect words,…

2022

A Study on the Efficacy of Model Pre-Training In Developing Neural Text-to-Speech System

ICASSP 2022accepted

In the development of neural text-to-speech systems, model pre-training with a large amount of non-target speakers’ data is a common approach. However, in terms of ultimately achieved system performance for target speaker(s), the actual benefits of model pre-training are uncertain and unstable, depe…

Cited by 0SourceScholar
2022

Analyzing and Mitigating Interference in Neural Architecture Search

ICML 2022spotlight

Weight sharing is a popular approach to reduce the training cost of neural architecture search (NAS) by reusing the weights of shared operators from previously trained child models. However, the rank correlation between the estimated accuracy and ground truth accuracy of those child models is low du…

Cited by 0SourcePDFScholar
2022

BinauralGrad: A Two-Stage Conditional Diffusion Probabilistic Model for Binaural Audio Synthesis

NeurIPS 2022accept

Binaural audio plays a significant role in constructing immersive augmented and virtual realities. As it is expensive to record binaural audio from the real world, synthesizing them from mono audio has attracted increasing attention. This synthesis process involves not only the basic physical warpin…

2022

Mask the Correct Tokens: An Embarrassingly Simple Approach for Error Correction

EMNLP 2022main

Text error correction aims to correct the errors in text sequences such as those typed by humans or generated by speech recognition models.Previous error correction methods usually take the source (incorrect) sentence as encoder input and generate the target (correct) sentence through the decoder. S…

2022

Transcormer: Transformer for Sentence Scoring with Sliding Language Modeling

NeurIPS 2022accept

Sentence scoring aims at measuring the likelihood score of a sentence and is widely used in many natural language processing scenarios, like reranking, which is to select the best sentence from multiple candidates. Previous works on sentence scoring mainly adopted either causal language modeling (CL…

Cited by 13SourcePDFScholar
2021

FastCorrect 2: Fast Error Correction on Multiple Candidates for Automatic Speech Recognition

EMNLP 2021finding

Error correction is widely used in automatic speech recognition (ASR) to post-process the generated sentence, and can further reduce the word error rate (WER). Although multiple candidates are generated by an ASR system through beam search, current error correction approaches can only correct one se…

2021

FastCorrect: Fast Error Correction with Edit Alignment for Automatic Speech Recognition

NeurIPS 2021poster

Error correction techniques have been used to refine the output sentences from automatic speech recognition (ASR) models and achieve a lower word error rate (WER) than original ASR outputs. Previous works usually use a sequence-to-sequence model to correct an ASR output sentence autoregressively, wh…

2021

MBNET: MOS Prediction for Synthesized Speech with Mean-Bias Network

ICASSP 2021accepted

Mean opinion score (MOS) is a popular subjective metric to assess the quality of synthesized speech, and usually involves multiple human judges to evaluate each speech utterance. To reduce the labor cost in MOS test, multiple methods have been proposed to automatically predict MOS scores. To our kno…

Cited by 0SourceScholar
2021

Speech-T: Transducer for Text to Speech and Beyond

NeurIPS 2021poster

Neural Transducer (e.g., RNN-T) has been widely used in automatic speech recognition (ASR) due to its capabilities of efficiently modeling monotonic alignments between input and output sequences and naturally supporting streaming inputs. Considering that monotonic alignments are also critical to tex…

Cited by 21SourcePDFScholar