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Continuous speech separation (CSS) aims to separate overlapping voices from a continuous influx of conversational audio containing an unknown number of utterances spoken by an unknown number of speakers. A common application scenario is…

音频与语音处理 · 电气工程与系统科学 2021-10-14 Zhuohuang Zhang , Takuya Yoshioka , Naoyuki Kanda , Zhuo Chen , Xiaofei Wang , Dongmei Wang , Sefik Emre Eskimez

Robust beamforming is a pivotal technique in massive multiple-input multiple-output (MIMO) systems as it mitigates interference among user equipment (UE). One current risk-neutral approach to robust beamforming is the stochastic weighted…

应用统计 · 统计学 2024-04-10 Ying Li , Zhidi Lin , Kai Li , Michael Minyi Zhang

Transformer-based diffusion models have demonstrated remarkable performance at generating high-quality samples. However, our theoretical understanding of the reasons for this success remains limited. For instance, existing models are…

机器学习 · 计算机科学 2026-04-14 Hongkang Li , Hancheng Min , Rene Vidal

Motivated by massive deployment of low data rate Internet of things (IoT) and ehealth devices with requirement for highly reliable communications, this paper proposes receive beamforming techniques for the uplink of a single-input…

信息论 · 计算机科学 2017-05-17 Majid Bavand , Steven D. Blostein

The sample matrix inversion (SMI) beamformer implements Capon's minimum variance distortionless (MVDR) beamforming using the sample covariance matrix (SCM). In a snapshot limited environment, the SCM is poorly conditioned resulting in a…

信号处理 · 电气工程与系统科学 2018-10-31 Saurav R Tuladhar , John R Buck

Speech separation models are used for isolating individual speakers in many speech processing applications. Deep learning models have been shown to lead to state-of-the-art (SOTA) results on a number of speech separation benchmarks. One…

声音 · 计算机科学 2023-03-13 William Ravenscroft , Stefan Goetze , Thomas Hain

This paper presents, in the context of multi-channel ASR, a method to adapt a mask based, statistically optimal beamforming approach to a speaker of interest. The beamforming vector of the statistically optimal beamformer is computed by…

计算与语言 · 计算机科学 2018-06-21 Tobias Menne , Ralf Schlüter , Hermann Ney

In pulse-echo ultrasound, aberration often degrades image quality when beamforming does not account for wavefront distortions. To address this issue, local sound speed estimators have been developed in the past decade for distributed…

In previous work, we proposed a variational autoencoder-based (VAE) Bayesian permutation training speech enhancement (SE) method (PVAE) which indicated that the SE performance of the traditional deep neural network-based (DNN) method could…

音频与语音处理 · 电气工程与系统科学 2022-05-12 Yang Xiang , Jesper Lisby Højvang , Morten Højfeldt Rasmussen , Mads Græsbøll Christensen

Networks with large receptive field (RF) have shown advanced fitting ability in recent years. In this work, we utilize the short-term residual learning method to improve the performance and robustness of networks for image denoising tasks.…

图像与视频处理 · 电气工程与系统科学 2022-04-14 Shuo-Fei Wang , Wen-Kai Yu , Ya-Xin Li

We develop an efficient and near-optimal solution for beamforming in multi-user multiple-input-multiple-output single-hop wireless ad-hoc interference networks. Inspired by the weighted minimum mean squared error (WMMSE) method, a classical…

信号处理 · 电气工程与系统科学 2023-04-04 Arindam Chowdhury , Gunjan Verma , Ananthram Swami , Santiago Segarra

Multi-channel speech enhancement with ad-hoc sensors has been a challenging task. Speech model guided beamforming algorithms are able to recover natural sounding speech, but the speech models tend to be oversimplified or the inference would…

计算与语言 · 计算机科学 2018-02-16 Kaizhi Qian , Yang Zhang , Shiyu Chang , Xuesong Yang , Dinei Florencio , Mark Hasegawa-Johnson

This paper considers the joint transceiver design in a wireless sensor network where multiple sensors observe the same physical event and transmit their contaminated observations to a fusion center, with all nodes equipped with multiple…

信息论 · 计算机科学 2015-06-22 Yang Liu , Jing Li , Xuanxuan Lu , Chau Yuen

The multichannel Wiener filter (MWF) and its variations have been extensively applied to binaural hearing aids. However, its major drawback is the distortion of the binaural cues of the residual noise, changing the original acoustic…

音频与语音处理 · 电气工程与系统科学 2019-11-12 Johnny Werner , Marcio H. Costa

Signal-dependent beamformers are advantageous over signal-independent beamformers when the acoustic scenario - be it real-world or simulated - is straightforward in terms of the number of sound sources, the ambient sound field and their…

音频与语音处理 · 电气工程与系统科学 2023-12-01 Sina Hafezi , Alastair H. Moore , Pierre H. Guiraud , Patrick A. Naylor , Jacob Donley , Vladimir Tourbabin , Thomas Lunner

Speech enhancement is a fundamental challenge in signal processing, particularly when robustness is required across diverse acoustic conditions and microphone setups. Deep learning methods have been successful for speech enhancement, but…

音频与语音处理 · 电气工程与系统科学 2025-10-28 Yuval Bar Ilan , Boaz Rafaely , Vladimir Tourbabin

Blind-audio-source-separation (BASS) techniques, particularly those with low latency, play an important role in a wide range of real-time systems, e.g., hearing aids, in-car hand-free voice communication, real-time human-machine…

音频与语音处理 · 电气工程与系统科学 2024-06-17 Kaien Mo , Xianrui Wang , Yichen Yang , Shoji Makino , Jingdong Chen

In this paper, conditional denoising diffusion probabilistic models (DDPMs) are proposed to enhance the data transmission and reconstruction over wireless channels. The underlying mechanism of DDPM is to decompose the data generation…

信息论 · 计算机科学 2024-11-21 Mehdi Letafati , Samad Ali , Matti Latva-aho

With the advancement of diffusion models (DMs) and the substantially increased computational requirements, quantization emerges as a practical solution to obtain compact and efficient low-bit DMs. However, the highly discrete representation…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Xingyu Zheng , Xianglong Liu , Haotong Qin , Xudong Ma , Mingyuan Zhang , Haojie Hao , Jiakai Wang , Zixiang Zhao , Jinyang Guo , Michele Magno

This article provides next step towards solving speed bottleneck of any system that intensively uses convolutions operations (e.g. CNN). Method described in the article is applied on deformable part models (DPM) algorithm. Method described…

计算机视觉与模式识别 · 计算机科学 2017-07-12 D. V. Parkhomenko , I. L. Mazurenko