activity
20152026
most citedAudio Deepfake Detection Based on a Combination of F0 Information and Real Plus Imaginary Spectrogram Features

40 citations · 191 across the 46 of their papers we have counts for

collaborators

47 papers

cs.SD2026

Scalable Neural Vocoder from Range-Null Space Decomposition

Andong Li, Tong Lei, Zhihang Sun +4

Although deep neural networks have facilitated significant progress of neural vocoders in recent years, they usually suffer from intrinsic challenges like opaque modeling, inflexib…

eess.AS2026

SLD-L2S: Hierarchical Subspace Latent Diffusion for High-Fidelity Lip to Speech Synthesis

Yifan Liang, Andong Li, Kang Yang +5

Although lip-to-speech synthesis (L2S) has achieved significant progress in recent years, current state-of-the-art methods typically rely on intermediate representations such as me…

cs.SD2026

GOMPSNR: Reflourish the Signal-to-Noise Ratio Metric for Audio Generation Tasks

Lingling Dai, Andong Li, Cheng Chi +3

In the field of audio generation, signal-to-noise ratio (SNR) has long served as an objective metric for evaluating audio quality. Nevertheless, recent studies have shown that SNR…

cs.SD2025

BridgeVoC: Revitalizing Neural Vocoder from a Restoration Perspective

Andong Li, Tong Lei, Rilin Chen +5

This paper revisits the neural vocoder task through the lens of audio restoration and propose a novel diffusion vocoder called BridgeVoC. Specifically, by rank analysis, we compare…

cs.SD2025

LTA-L2S: Lexical Tone-Aware Lip-to-Speech Synthesis for Mandarin with Cross-Lingual Transfer Learning

Kang Yang, Yifan Liang, Fangkun Liu +2

Lip-to-speech (L2S) synthesis for Mandarin is a significant challenge, hindered by complex viseme-to-phoneme mappings and the critical role of lexical tones in intelligibility. To…

eess.AS2025

Rethinking the joint estimation of magnitude and phase for time-frequency domain neural vocoders

Lingling Dai, Andong Li, Tong Lei +3

Time-frequency (T-F) domain-based neural vocoders have shown promising results in synthesizing high-fidelity audio. Nevertheless, it remains unclear on the mechanism of effectively…

cs.SD2025

Learning Neural Vocoder from Range-Null Space Decomposition

Andong Li, Tong Lei, Zhihang Sun +4

Despite the rapid development of neural vocoders in recent years, they usually suffer from some intrinsic challenges like opaque modeling, and parameter-performance trade-off. In t…

cs.SD2025

NaturalL2S: End-to-End High-quality Multispeaker Lip-to-Speech Synthesis with Differential Digital Signal Processing

Yifan Liang, Fangkun Liu, Andong Li +2

Recent advancements in visual speech recognition (VSR) have promoted progress in lip-to-speech synthesis, where pre-trained VSR models enhance the intelligibility of synthesized sp…

cs.SD2025

Neural Vocoders as Speech Enhancers

Andong Li, Zhihang Sun, Fengyuan Hao +2

Speech enhancement (SE) and neural vocoding are traditionally viewed as separate tasks. In this work, we observe them under a common thread: the rank behavior of these processes. T…

cs.SD2024

BSDB-Net: Band-Split Dual-Branch Network with Selective State Spaces Mechanism for Monaural Speech Enhancement

Cunhang Fan, Enrui Liu, Andong Li +5

Although the complex spectrum-based speech enhancement(SE) methods have achieved significant performance, coupling amplitude and phase can lead to a compensation effect, where ampl…

cs.SD2024

End-to-end multi-channel speaker extraction and binaural speech synthesis

Cheng Chi, Xiaoyu Li, Yuxuan Ke +4

Speech clarity and spatial audio immersion are the two most critical factors in enhancing remote conferencing experiences. Existing methods are often limited: either due to the lac…

cs.SD2023★ 1 cited

BAE-Net: A Low complexity and high fidelity Bandwidth-Adaptive neural network for speech super-resolution

Guochen Yu, Xiguang Zheng, Nan Li +6

Speech bandwidth extension (BWE) has demonstrated promising performance in enhancing the perceptual speech quality in real communication systems. Most existing BWE researches prima…

cs.SD2023★ 17 cited

Spatial Reconstructed Local Attention Res2Net with F0 Subband for Fake Speech Detection

Cunhang Fan, Jun Xue, Jianhua Tao +4

The rhythm of bonafide speech is often difficult to replicate, which causes that the fundamental frequency (F0) of synthetic speech is significantly different from that of real spe…

cs.SD2022

TaylorBeamixer: Learning Taylor-Inspired All-Neural Multi-Channel Speech Enhancement from Beam-Space Dictionary Perspective

Andong Li, Guochen Yu, Wenzhe Liu +2

Despite the promising performance of existing frame-wise all-neural beamformers in the speech enhancement field, it remains unclear what the underlying mechanism exists. In this pa…

cs.SD2022★ 2 cited

A General Unfolding Speech Enhancement Method Motivated by Taylor's Theorem

Andong Li, Guochen Yu, Chengshi Zheng +2

While deep neural networks have facilitated significant advancements in the field of speech enhancement, most existing methods are developed following either empirical or relativel…

cs.SD2022★ 40 cited

Audio Deepfake Detection Based on a Combination of F0 Information and Real Plus Imaginary Spectrogram Features

Jun Xue, Cunhang Fan, Zhao Lv +6

Recently, pioneer research works have proposed a large number of acoustic features (log power spectrogram, linear frequency cepstral coefficients, constant Q cepstral coefficients,…

cs.SD2022

TMGAN-PLC: Audio Packet Loss Concealment using Temporal Memory Generative Adversarial Network

Yuansheng Guan, Guochen Yu, Andong Li +2

Real-time communications in packet-switched networks have become widely used in daily communication, while they inevitably suffer from network delays and data losses in constrained…

cs.SD2022

Taylor, Can You Hear Me Now? A Taylor-Unfolding Framework for Monaural Speech Enhancement

Andong Li, Shan You, Guochen Yu +2

While the deep learning techniques promote the rapid development of the speech enhancement (SE) community, most schemes only pursue the performance in a black-box manner and lack a…

cs.SD2022

TaylorBeamformer: Learning All-Neural Beamformer for Multi-Channel Speech Enhancement from Taylor's Approximation Theory

Andong Li, Guochen Yu, Chengshi Zheng +1

While existing end-to-end beamformers achieve impressive performance in various front-end speech processing tasks, they usually encapsulate the whole process into a black box and t…

cs.SD2022★ 2 cited

MDNet: Learning Monaural Speech Enhancement from Deep Prior Gradient

Andong Li, Chengshi Zheng, Ziyang Zhang +1

While traditional statistical signal processing model-based methods can derive the optimal estimators relying on specific statistical assumptions, current learning-based methods fu…

cs.SD2022★ 1 cited

Optimizing Shoulder to Shoulder: A Coordinated Sub-Band Fusion Model for Real-Time Full-Band Speech Enhancement

Guochen Yu, Andong Li, Wenzhe Liu +3

Due to the high computational complexity to model more frequency bands, it is still intractable to conduct real-time full-band speech enhancement based on deep neural networks. Rec…

cs.SD2022★ 1 cited

DMF-Net: A decoupling-style multi-band fusion model for full-band speech enhancement

Guochen Yu, Yuansheng Guan, Weixin Meng +2

For the difficulty and large computational complexity of modeling more frequency bands, full-band speech enhancement based on deep neural networks is still challenging. Previous st…

eess.AS2022★ 14 cited

Low-latency Monaural Speech Enhancement with Deep Filter-bank Equalizer

Chengshi Zheng, Wenzhe Liu, Andong Li +2

It is highly desirable that speech enhancement algorithms can achieve good performance while keeping low latency for many applications, such as digital hearing aids, acoustically t…

cs.SD2022★ 1 cited

A Neural Beam Filter for Real-time Multi-channel Speech Enhancement

Wenzhe Liu, Andong Li, Chengshi Zheng +1

Most deep learning-based multi-channel speech enhancement methods focus on designing a set of beamforming coefficients to directly filter the low signal-to-noise ratio signals rece…