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Music Source Restoration (MSR) extends source separation to realistic settings where signals undergo production effects (equalization, compression, reverb) and real-world degradations, with the goal of recovering the original unprocessed…

Sign stochastic gradient descent (signSGD) is a communication-efficient method that transmits only the sign of stochastic gradients for parameter updating. Existing literature has demonstrated that signSGD can achieve a convergence rate of…

机器学习 · 计算机科学 2024-12-16 Wei Jiang , Sifan Yang , Wenhao Yang , Lijun Zhang

The signal to noise ratio, which plays such an important r\^ole in information theory, is shown to become pointless for digital communications where the demodulation is achieved via new fast estimation techniques. Operational calculus,…

信息论 · 计算机科学 2008-12-10 Michel Fliess

Automatic evaluation of ST systems is typically performed by comparing translation hypotheses with one or more reference translations. While effective to some extent, this approach inherits the limitation of reference-based evaluation that…

计算与语言 · 计算机科学 2026-04-09 Mauro Cettolo , Marco Gaido , Matteo Negri , Sara Papi , Luisa Bentivogli

The combination of a deep neural network (DNN) -based speech enhancement (SE) front-end and an automatic speech recognition (ASR) back-end is a widely used approach to implement overlapping speech recognition. However, the SE front-end…

音频与语音处理 · 电气工程与系统科学 2022-06-17 Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Keisuke Kinoshita , Naoyuki Kamo , Takafumi Moriya

Diffusion models (DM) have become fundamental components of generative models, excelling across various domains such as image creation, audio generation, and complex data interpolation. Signal-to-Noise diffusion models constitute a diverse…

计算机视觉与模式识别 · 计算机科学 2024-08-09 Khanh Doan , Long Tung Vuong , Tuan Nguyen , Anh Tuan Bui , Quyen Tran , Thanh-Toan Do , Dinh Phung , Trung Le

Self-supervised learning (SSL) has recently allowed leveraging large datasets of unlabeled speech signals to reach impressive performance on speech tasks using only small amounts of annotated data. The high number of proposed approaches…

音频与语音处理 · 电气工程与系统科学 2023-06-02 Salah Zaiem , Youcef Kemiche , Titouan Parcollet , Slim Essid , Mirco Ravanelli

Signal to noise ratio (SNR) is a key performance metric of an imaging instrument. Here we describe characterisation of SNR of a custom 2-photon microscope and compare the SNR performance of our microscope with selected commercial 2-photon…

光学 · 物理学 2026-03-02 Radek Macháň , Shau Poh Chong , Khee Leong Lee , Peter Török

The noise of a device under test (DUT) is measured simultaneously with two instruments, each of which contributes its own background. The average cross power spectral density converges to the DUT power spectral density. This method enables…

仪器与探测器 · 物理学 2010-03-02 Enrico Rubiola , Francois Vernotte

Signal to Noise Ratio (SNR) is an important index for wireless communications. In CDMA systems, spreading sequences are utilized. This series of papers show the method to derive spreading sequences as the solutions of the non-linear…

信息论 · 计算机科学 2016-12-28 Hirofumi Tsuda , Ken Umeno

Deep-learning based speech separation models confront poor generalization problem that even the state-of-the-art models could abruptly fail when evaluating them in mismatch conditions. To address this problem, we propose an…

音频与语音处理 · 电气工程与系统科学 2020-03-04 Max W. Y. Lam , Jun Wang , Dan Su , Dong Yu

Signal to Noise Ratio (SNR) is an important index for wireless communications. There are many methods for increasing SNR. In CDMA systems, spreading sequences are used. We consider the frequency-selective wide-sense-stationary…

信息论 · 计算机科学 2016-10-17 Hirofumi Tsuda , Ken Umeno

The minimum mean-squared error (MMSE) is one of the most popular criteria for Bayesian estimation. Conversely, the signal-to-noise ratio (SNR) is a typical performance criterion in communications, radar, and generally detection theory. In…

信息论 · 计算机科学 2016-10-12 Luca Rugini , Paolo Banelli

Automatic speech recognition (ASR) systems, increasingly prevalent in education, healthcare, employment, and mobile technology, face significant challenges in inclusivity, particularly for the 80 million-strong global community of people…

计算与语言 · 计算机科学 2024-05-13 Dena Mujtaba , Nihar R. Mahapatra , Megan Arney , J. Scott Yaruss , Hope Gerlach-Houck , Caryn Herring , Jia Bin

Compressed Sensing suggests that the required number of samples for reconstructing a signal can be greatly reduced if it is sparse in a known discrete basis, yet many real-world signals are sparse in a continuous dictionary. One example is…

信息论 · 计算机科学 2015-07-24 Yuanxin Li , Yuejie Chi

Many multichannel systems use a linear filter to retrieve a signal of interest corrupted by noise whose statistics are partly unknown. The optimal filter in Gaussian noise requires knowledge of the noise covariance matrix $\Sigma$ and in…

信号处理 · 电气工程与系统科学 2021-08-30 Olivier Besson

A practical speech audiometry tool is the digits-in-noise (DIN) test for hearing screening of populations of varying ages and hearing status. The test is usually conducted by a human supervisor (e.g., clinician), who scores the responses…

计算与语言 · 计算机科学 2024-03-18 Gloria Araiza-Illan , Luke Meyer , Khiet P. Truong , Deniz Baskent

Despite significant progress made in the last decade, deep neural network (DNN) based speech enhancement (SE) still faces the challenge of notable degradation in the quality of recovered speech under low signal-to-noise ratio (SNR)…

声音 · 计算机科学 2024-08-20 Zhongshu Hou , Tong Lei , Qinwen Hu , Zhanzhong Cao , Ming Tang , Jing Lu

This paper addresses the challenge of speaker separation, which remains an active research topic despite the promising results achieved in recent years. These results, however, often degrade in real recording conditions due to the presence…

声音 · 计算机科学 2024-11-14 Rawad Melhem , Assef Jafar , Oumayma Al Dakkak

Deep learning-based methods have made significant achievements in music source separation. However, obtaining good results while maintaining a low model complexity remains challenging in super wide-band music source separation. Previous…

音频与语音处理 · 电气工程与系统科学 2024-01-25 Weinan Tong , Jiaxu Zhu , Jun Chen , Shiyin Kang , Tao Jiang , Yang Li , Zhiyong Wu , Helen Meng