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Liyong Guo

10 accepted papers

2026

Flow2GAN: Hybrid Flow Matching and GAN with Multi-Resolution Network for One-/Two-step High-Fidelity Audio Generation

ICLR 2026poster

Existing dominant methods for audio generation include Generative Adversarial Networks (GANs) and diffusion-based methods like Flow Matching. GANs suffer from slow convergence and potential mode collapse during training, while diffusion methods require multi-step inference that introduces considerab…

Cited by 0SourcecodeScholar
2025

CR-CTC: Consistency regularization on CTC for improved speech recognition

ICLR 2025poster

Connectionist Temporal Classification (CTC) is a widely used method for automatic speech recognition (ASR), renowned for its simplicity and computational efficiency. However, it often falls short in recognition performance. In this work, we propose the Consistency-Regularized CTC (CR-CTC), which en…

2024

Libriheavy: A 50, 000 Hours ASR Corpus with Punctuation Casing and Context

ICASSP 2024accepted

In this paper, we introduce Libriheavy, a large-scale ASR corpus consisting of 50,000 hours of read English speech derived from LibriVox. To the best of our knowledge, Libriheavy is the largest freely-available corpus of speech with supervisions. Different from other open-sourced datasets that only…

Cited by 0SourceScholar
2024

PromptASR for Contextualized ASR with Controllable Style

ICASSP 2024accepted

Prompts are crucial to large language models as they provide context information such as topic or logical relationships. Inspired by this, we propose PromptASR, a framework that integrates prompts in end-to-end automatic speech recognition (E2E ASR) systems to achieve contextualized ASR with control…

Cited by 0SourceScholar
2024

Zipformer: A faster and better encoder for automatic speech recognition

ICLR 2024oral

The Conformer has become the most popular encoder model for automatic speech recognition (ASR). It adds convolution modules to a transformer to learn both local and global dependencies. In this work we describe a faster, more memory-efficient, and better-performing transformer, called Zipformer. M…

2023

Delay-Penalized Transducer for Low-Latency Streaming ASR

ICASSP 2023accepted

In streaming automatic speech recognition (ASR), it is desirable to reduce latency as much as possible while having minimum impact on recognition accuracy. Although a few existing methods are able to achieve this goal, they are difficult to implement due to their dependency on external alignments. I…

Cited by 0SourceScholar
2023

Fast and Parallel Decoding for Transducer

ICASSP 2023accepted

The transducer architecture is becoming increasingly popular in the field of speech recognition, because it is naturally streaming as well as high in accuracy. One of the drawbacks of transducer is that it is difficult to decode in a fast and parallel way due to an unconstrained number of symbols th…

Cited by 0SourceScholar
2023

Predicting Multi-Codebook Vector Quantization Indexes for Knowledge Distillation

ICASSP 2023accepted

Knowledge distillation (KD) is a common approach to improve model performance in automatic speech recognition (ASR), where a student model is trained to imitate the output behaviour of a teacher model. However, traditional KD methods suffer from teacher label storage issue, especially when the train…

Cited by 0SourceScholar
2023

Relate Auditory Speech To Eeg By Shallow-Deep Attention-Based Network

ICASSP 2023accepted

Electroencephalography (EEG) plays a vital role in detecting how brain responses to different stimulus. In this paper, we propose a novel Shallow-Deep Attention-based Network (SDANet) to classify the correct auditory stimulus evoking the EEG signal. It adopts the Attention-based Correlation Module (…

Cited by 0SourceScholar
2022

Multi-Scale Refinement Network Based Acoustic Echo Cancellation

ICASSP 2022accepted

Recently, deep encoder-decoder networks have shown outstanding performance in acoustic echo cancellation (AEC). However, the subsampling operations like convolution striding in the encoder layers significantly decrease the feature resolution lead to fine-grained information loss. This paper proposes…

Cited by 0SourceScholar