On accumulated spectrograms

LD Abreu, K Gröchenig, JL Romero - Transactions of the American …, 2016 - ams.org
on the perimeter of the boundary of Ω. Our main results show that the spectrograms of the …
eigenvalues (which we call the accumulated spectrogram) form an approximate partition of …

On accumulated spectrograms for Gabor frames

S Halvdansson - arXiv preprint arXiv:2405.02059, 2024 - arxiv.org
on accumulated spectrograms, the sum of spectrograms of eigenfunctions of localization
operators, are established for Gabor multipliers on … the theorems on accumulated spectrograms. …

Sharp rates of convergence for accumulated spectrograms

LD Abreu, JM Pereira, JL Romero - Inverse Problems, 2017 - iopscience.iop.org
… the method of accumulated spectrograms (the sum of the spectrograms corresponding to
large … for the rate of convergence of the accumulated spectrogram, improving on recent results. …

On accumulated Cohen's class distributions and mixed-state localization operators

F Luef, E Skrettingland - Constructive Approximation, 2020 - Springer
… the accumulated spectrogram. We extend all the results about the accumulated spectrogram
to the accumulated … The techniques used in the case of spectrograms cannot be adapted to …

Accumulated spectrograms for hyperuniform determinantal point processes

M Katori, P Lazag, T Shirai - arXiv preprint arXiv:2403.16325, 2024 - arxiv.org
… Polar decomposition and accumulated spectrogram associated to a locally trace class
orthogonal projection. The material we present here on polar decomposition is very standard, and …

Efficient classification of environmental sounds through multiple features aggregation and data enhancement techniques for spectrogram images

Z Mushtaq, SF Su - Symmetry, 2020 - mdpi.com
… features based on the logarithmic scale of the Mel spectrogram (… accumulation of various
audio features into one spectrogram … This study also proposed the accumulation scheme of the …

Underwater target recognition using convolutional recurrent neural networks with 3-D Mel-spectrogram and data augmentation

F Liu, T Shen, Z Luo, D Zhao, S Guo - Applied Acoustics, 2021 - Elsevier
… We framed the underwater acoustic signals into 80–100 ms, and accumulated the features
… the 1-D Mel-spectrogram and STFT under the unified CRNN-9 model. On this basis, we use …

A Unified Approach to Time-Frequency Representations and Generalized Spectrogram

E Cordero, G Giacchi, L Rodino - arXiv preprint arXiv:2401.03882, 2024 - arxiv.org
… window spectrogram introduced in [11], whereas A = B = AST in (12) gives the classical one
(2). In particular, we focus on the case A = B, which is called A-metaplectic spectrogram SpA …

Improvement of accent classification models through Grad-Transfer from Spectrograms and Gradient-weighted Class Activation Mapping

A Carofilis, E Alegre, E Fidalgo… - … Transactions on …, 2023 - ieeexplore.ieee.org
… The article works on two hypotheses: the coarse localization maps produced by Grad-CAM
on spectrograms are able to highlight the regions of the spectrograms that are important for …

Speech/music classification using features from spectral peaks

M Bhattacharjee, SRM Prasanna… - … on Audio, Speech, and …, 2020 - ieeexplore.ieee.org
… This work proposes to model such spectrogram patterns … of Gaussian mixture models learned
on the peak traces. Speech vs. … are constructed for accumulating the frequency locations of …