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This paper proposes a speech rhythm-based method for speaker embeddings to model phoneme duration using a few utterances by the target speaker. Speech rhythm is one of the essential factors among speaker characteristics, along with acoustic…

Sound · Computer Science 2024-02-13 Kenichi Fujita , Atsushi Ando , Yusuke Ijima

Irregularly sampling a spatially stationary random field does not yield a graph stationary signal in general. Based on this observation, we build a definition of graph stationarity based on intrinsic stationarity, a less restrictive…

Signal Processing · Electrical Eng. & Systems 2018-09-26 Alexander Serrano , Benjamin Girault , Antonio Ortega

Speech enhancement and speech separation are two related tasks, whose purpose is to extract either one or more target speech signals, respectively, from a mixture of sounds generated by several sources. Traditionally, these tasks have been…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-16 Daniel Michelsanti , Zheng-Hua Tan , Shi-Xiong Zhang , Yong Xu , Meng Yu , Dong Yu , Jesper Jensen

This article introduces a novel and computationally fast model to study the association between covariates and power spectra of replicated time series. A random covariate-dependent Cram\'{e}r spectral representation and a semiparametric…

Methodology · Statistics 2024-07-03 Zeda Li , Yuexiao Dong

We address the problem of active speaker detection through a new framework, called SPELL, that learns long-range multimodal graphs to encode the inter-modal relationship between audio and visual data. We cast active speaker detection as a…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Sourya Roy , Kyle Min , Subarna Tripathi , Tanaya Guha , Somdeb Majumdar

Recognition of speech, and in particular the ability to generalize and learn from small sets of labelled examples like humans do, depends on an appropriate representation of the acoustic input. We formulate the problem of finding robust…

In this paper, we investigate how to learn rich and robust feature representations for audio classification from visual data and acoustic images, a novel audio data modality. Former models learn audio representations from raw signals or…

Computer Vision and Pattern Recognition · Computer Science 2020-02-12 Andrés F. Pérez , Valentina Sanguineti , Pietro Morerio , Vittorio Murino

Modern autonomous vehicles and robots utilize versatile sensors for localization and mapping. The fidelity of these maps is paramount, as an accurate environmental representation is a prerequisite for stable and precise localization. Factor…

Robotics · Computer Science 2026-02-10 Mark Griguletskii , Danil Belov , Pavel Osinenko

In conventional multichannel audio signal enhancement, spatial and spectral filtering are often performed sequentially. In contrast, it has been shown that for neural spatial filtering a joint approach of spectro-spatial filtering is more…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-13 Annika Briegleb , Mhd Modar Halimeh , Walter Kellermann

Automatic speech recognition in multi-channel reverberant conditions is a challenging task. The conventional way of suppressing the reverberation artifacts involves a beamforming based enhancement of the multi-channel speech signal, which…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-28 Anurenjan Purushothaman , Anirudh Sreeram , Sriram Ganapathy

In this paper, we propose the use of spatial and harmonic features in combination with long short term memory (LSTM) recurrent neural network (RNN) for automatic sound event detection (SED) task. Real life sound recordings typically have…

There are a few reasons for the recent increased interest in the study of local features of speech files. It is stated that many essential features of the speaker language used can appear in the form of the speech signal. The traditional…

Sound · Computer Science 2020-06-08 Rustam Latypov , Evgeni Stolov

Informed speaker extraction aims to extract a target speech signal from a mixture of sources given prior knowledge about the desired speaker. Recent deep learning-based methods leverage a speaker discriminative model that maps a reference…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-17 Mohamed Elminshawi , Wolfgang Mack , Emanuël A. P. Habets

Acoustic signal acts as an essential input to many systems. However, the pure acoustic signal is very difficult to extract, especially in noisy environments. Existing beamforming systems are able to extract the signal transmitted from…

Sound · Computer Science 2022-10-03 Weiguo Wang , Jinming Li , Meng Jin , Yuan He

This paper proposes a spatial feature extraction method based on energy of the features for classification of the hyperspectral data. A proposed orthogonal filter set extracts spatial features with maximum energy from the principal…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Hamid Reza Shahdoosti

Spatial variables can be observed in many different forms, such as regularly sampled random fields (lattice data), point processes, and randomly sampled spatial processes. Joint analysis of such collections of observations is clearly…

Methodology · Statistics 2026-05-20 Jake P. Grainger , Tuomas A. Rajala , David J. Murrell , Sofia C. Olhede

We consider the problem of imaging a crack network embedded in some homogeneous background from measured multi-static far field data generated by acoustic plane waves. We propose two novel approaches that can be seen as extensions of linear…

Analysis of PDEs · Mathematics 2020-06-19 Lorenzo Audibert , Lucas Chesnel , Houssem Haddar , Kevish Napal

We propose a completely unsupervised method to understand audio scenes observed with random microphone arrangements by decomposing the scene into its constituent sources and their relative presence in each microphone. To this end, we…

Sound · Computer Science 2019-09-30 Jonah Casebeer , Michael Colomb , Paris Smaragdis

Hyperspectral imaging is an important tool having been applied in various fields, but still limited in observation of dynamic scenes. In this paper, we propose a snapshot hyperspectral imaging technique which exploits both spectral and…

Instrumentation and Detectors · Physics 2018-12-26 Chao Deng , Xuemei Hu , Jinli Suo , Yuanlong Zhang , Zhili Zhang , Qionghai Dai

Frequently misclassified pairs of classes that share many common acoustic properties exist in acoustic scene classification (ASC). To distinguish such pairs of classes, trivial details scattered throughout the data could be vital clues.…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-10 Hye-jin Shim , Jee-weon Jung , Ju-ho Kim , Ha-jin Yu