Results 71 to 80 of about 372,370 (292)

Phase reconstruction of spectrograms based on a model of repeated audio events

open access: yes, 2015
Phase recovery of modified spectrograms is a major issue in audio signal processing applications, such as source separation. This paper introduces a novel technique for estimating the phases of components in complex mixtures within onset frames in the ...
Badeau, Roland   +2 more
core   +2 more sources

Subicular Astrocytes Govern Seizure‐Impaired Fear Memory

open access: yesAdvanced Science, EarlyView.
Astrocytes in dorsal subiculum act as a critical modulator of seizure‐associated cognitive dysfunction, operating through a Ca2+‐dependent adenosine‐linked astrocyte‐neuron signaling pathway that disrupts neuronal circuit homeostasis. This research highlights the potential of astrocyte‐targeted interventions as a therapeutic strategy, moving beyond the
Yuying Shao   +15 more
wiley   +1 more source

Compressive Sampling with Multiple Bit Spread Spectrum-Based Data Hiding

open access: yesApplied Sciences, 2020
We propose a novel data hiding method in an audio host with a compressive sampling technique. An over-complete dictionary represents a group of watermarks.
Gelar Budiman   +2 more
doaj   +1 more source

Emergency locating transmitter [PDF]

open access: yes, 1991
A transmitter generates three signals for sequential transmission. These signal are an unmodulated r.f. carrier, a r.f. carrier amplitude modulated by a first audio frequency waveform and a r.f.
Wren, Paul E.
core   +1 more source

Quantitative Assessment of Randomized DNA Base Sequences Using Multi‐Model Physical Analysis for High‐Fidelity Data Storage

open access: yesAdvanced Science, EarlyView.
This study quantitatively evaluates randomized DNA sequence design for digital data storage using three physics‐based models. By applying encoding schemes with strict homopolymer constraints, the framework improves base randomness, GC balance, and error resilience. Experimental validation via PCR and Sanger sequencing confirms 95–98% decoding accuracy,
Seongjun Seo   +6 more
wiley   +1 more source

Programmable parametric filter with noise generator and data acquisition [PDF]

open access: yes, 2019
Audio filtering systems are used in commercial applications involving equalizers. However, some of the topologies used can be modified to be used in audio signal treatment applications.
Martínez García, Herminio
core  

A Feature Learning Siamese Model for Intelligent Control of the Dynamic Range Compressor

open access: yes, 2019
In this paper, a siamese DNN model is proposed to learn the characteristics of the audio dynamic range compressor (DRC). This facilitates an intelligent control system that uses audio examples to configure the DRC, a widely used non-linear audio signal ...
Fazekas, György, Sheng, Di
core   +1 more source

Magnetic Flux Guides by Material Extrusion

open access: yesAdvanced Science, EarlyView.
Magnetic flux guidance can increase inductive coupling and forces for magnetic sensors, actuators, and transducers. Here, a magnetic material extrusion method is used to fabricate flux concentration structures of arbitrary shapes with a magnetic permeability of 42. In line with simulation analysis, experimental results show that these materials provide
Jorge Cañada   +4 more
wiley   +1 more source

Kapre: On-GPU Audio Preprocessing Layers for a Quick Implementation of Deep Neural Network Models with Keras [PDF]

open access: yes, 1947
We introduce Kapre, Keras layers for audio and music signal preprocessing. Music research using deep neural networks requires a heavy and tedious preprocessing stage, for which audio processing parameters are often ignored in parameter optimisation.
Choi, Keunwoo, Joo, Deokjin, Kim, Juho
core   +5 more sources

Scalable Photoactive NO2‐Sensing Framework for Plant Health Monitoring

open access: yesAdvanced Science, EarlyView.
A highly sensitive and selective NO2 gas sensor operates at room temperature using only ambient light, eliminating the need for external heating. Based on a scalable, 3D TiO2 nanoarchitecture, the device is integrated into a wireless platform and deployed on a plant. It successfully demonstrates real‐time monitoring of gas‐induced physiological stress,
Yun‐Haeng Cho   +21 more
wiley   +1 more source

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