Results 71 to 80 of about 96,369 (275)

Type-IV DCT, DST, and MDCT algorithms with reduced numbers of arithmetic operations

open access: yes, 2009
We present algorithms for the type-IV discrete cosine transform (DCT-IV) and discrete sine transform (DST-IV), as well as for the modified discrete cosine transform (MDCT) and its inverse, that achieve a lower count of real multiplications and additions ...
Arai   +52 more
core   +3 more sources

A community‐driven approach to address substance use and create a Great Plains American Indian addiction and recovery research agenda

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Substance use, specifically opioid and methamphetamine use, is of increasing concern among American Indian (AI) populations in the Great Plains. This community‐driven participatory study investigated the impacts of substance use and community‐defined needs in treating addiction.
Brynn Luger   +8 more
wiley   +1 more source

Simulations of second order microphones in audio coding

open access: yes, 2011
6 pagesThe method of array processing involves the use of multiple microphones to receive a signal carried by propagating waves. Microphone arrays have a variety of applications such as sonars, radars and acoustic tomography.
Delikaris-Manias, Simeon
core   +1 more source

Frequency-warped autoregressive modeling and filtering [PDF]

open access: yes, 2001
This thesis consists of an introduction and nine articles. The articles are related to the application of frequency-warping techniques to audio signal processing, and in particular, predictive coding of wideband audio signals.
Härmä, Aki
core  

Novel Ideas for Lossless Audio Coding

open access: yesInternational Journal of Electronics and Telecommunications, 2012
Abstract Novel ideas for lossless audio coding analyzed in the paper are linked with forward predictor adaptation, and concern optimization of predictors on the basis of zero-order entropy and MMAE criterions, and context sound coding. Direct use of the former criterion is linked with exponential growth of optimization procedure, hence, a ...
G. Ulacha, R. Stasinski
openaire   +2 more sources

“Will you be there for me?” Social support from family and friends during cold case sexual assault prosecutions

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract If sexual assault survivors report the assault to the criminal legal system, they often need informal support from family and friends throughout the long and frequently retraumatizing process of investigation and prosecution. This study is part of a long‐term community‐based participatory action research project in a predominately Black ...
Rebecca Campbell   +4 more
wiley   +1 more source

Frame Theory for Signal Processing in Psychoacoustics

open access: yes, 2016
This review chapter aims to strengthen the link between frame theory and signal processing tasks in psychoacoustics. On the one side, the basic concepts of frame theory are presented and some proofs are provided to explain those concepts in some detail ...
A. Bregman   +74 more
core   +1 more source

Examining pathways by which socioeconomic instability in adolescence influence sexual health during emerging adulthood in an agricultural setting in California

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract This study investigates the longitudinal impact of socioeconomic instability on teen pregnancy and sexually transmitted infection (STI) diagnosis among adolescents and young adults (AYA) living in an agricultural region and examines pathways including supportive family and social structures, decision making autonomy in romantic relationships ...
Marie C. D. Stoner   +11 more
wiley   +1 more source

Audio Hiding based on Wavelet Transform and Linear Predictive Coding

open access: yesIraqi Journal for Computers and Informatics, 2016
In this work an efficient method for hiding a speech in audio is proposed. The features of secret speech is extracted with LPC (Linear Predictive Coding), and these parameters embedded in audio in chaotic order.
Jamal Hasoon, Saad Al-Saad
doaj   +1 more source

The rain feels different under the same umbrella: Experiences with poverty across LGBTQ subgroups

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Population‐based survey data have demonstrated that LGBTQ communities report varying rates of economic insecurity, yet very little research directly assesses how pathways into and experiences with poverty look different among subgroups at the intersections of sexual orientation and gender identity (SOGI).
Bianca D. M. Wilson, Lillian Nguyen
wiley   +1 more source

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