SFXtools has released its latest sound effects collection Sci-Fi Whooshes, a new “Film Audio” series pack featuring 64 high-quality unique sounding whoosh sound effects. Full of whoosh, swoosh, swish, passbys, flybys and movement sounds to spice up your sci-fi projects, trailers, cut scenes and movies. Every sound in the folder designed and delivered in industry-standard […]

The post SFXtools releases Sci-Fi Whooshes, Stutter & Noises and more appeared first on rekkerd.org.

VST Buzz has announced a sale on the Palmary Collection by NoiseAsh, a bundle of 10 audio plugins providing endless possibilities for achieving the highest sound quality in your productions. “Palmary Collection” is an elite production tool series for producers / musicians / mixing & mastering engineers. With 10 outstanding plugins covering a wide variety […]

The post Save 76% on Palmary Collection by NoiseAsh, on sale for 89 EUR at VST Buzz appeared first on rekkerd.org.

Harsh Noise Wally, is a sophisticated mashup mixing strips of Wally, the lazy and cynic colleague of Dilbert with some epic noise music extreme attitudes. Well conceived and assembled.

Most people – students included – have a long to-do list but are short on ideas for how to tackle it. In this episode of KUT’s podcast “Higher Ed,” Southwestern University President Dr. Ed Burger and KUT’s Jennifer Stayton discuss strategies for deciding what should top the list. Ed suggests that removing things from the...

There have been few surprise hits in the world of patchable instruments like Make Noise's 0-Coast. But they just might have another hit - a tabletop, patchable, clockable controller-sequencer. And it's adorable - and US$399.

The post Make Noise 0-CTRL is the controller-sequencer followup to 0-Coast appeared first on CDM Create Digital Music.

Wind farm developments in Victoria will now have to have noise levels checked by an independent auditor, before and after construction.

Amid plans for a five-star hotel for Canberra's centre, some of the city's biggest music success stories plot to save its nightlife, claiming currently unenforced noise limits could kick into effect and threaten venues when the hotel starts hosting guests.

These creatures can make some strange sounds and the Australian Museum wants you to record them to help monitor populations.

The first milestone in the Federal Government's review of drone noise vindicates community complaints that the unmanned delivery vehicles are loud and obtrusive.

More than a dozen live venues and nightclubs across Canberra shut down in the 2018 financial year, but the Government hopes a new plan to make a racket will turn that trend around.

Wow! Noise is a secret killer of performance. A 10db noise increase (from a dishwasher to a vacuum) drops productivity by 5% - but most people don't notice since it impacts cognition, not effort. Also, note that noise is greater in poorer neighborhoods...

Kindred Spirits Met When Japanese Noise Legend Merzbow Got Together In The Studio With Fellow Countryman Keiji Haino And Drummer Balazs Pandi For A New Recording On RareNoiseRecords

Thick Smoke Clouds The Air As Thunderous Booms Shake The Ground.

Thick Smoke Clouds The Air As Thunderous Booms Shake The Ground.

Thick Smoke Clouds The Air As Thunderous Booms Shake The Ground.

It Becomes Stunningly Clear That , The Latest Album From The Uncategorizable UK Ensemble , Is Meant To Take The Listener On A Journey.

The Official Launch Will Be On May 26 At Magnet Theater With A Performance Supporting Its First Vinyl Release: Píng Zè

Barriers, berms, buildings, and natural terrain may affect the propagation of aircraft noise by shielding or reflecting sound energy. If terrain and manmade structures obstruct the line‐of‐sight between the source and the receiver, then sound energy will be attenuated at the receiver. This attenuation increases with the terrain and structures’ size and proximity to either the source or the receiver. If gaps exist in the terrain or structures, then the potential benefits of acoustical shielding will be su...

Newcastle are closing in on a £300m takeover which could see the club transformed into a major player.

Fabien Panloup, Samy Tindel, Maylis Varvenne.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 1075--1136.

Abstract:
In this paper we consider the drift estimation problem for a general differential equation driven by an additive multidimensional fractional Brownian motion, under ergodic assumptions on the drift coefficient. Our estimation procedure is based on the identification of the invariant measure, and we provide consistency results as well as some information about the convergence rate. We also give some examples of coefficients for which the identifiability assumption for the invariant measure is satisfied.

Great attention has been paid to Big Data in recent years. Such data hold promise for scientific discoveries but also pose challenges to analyses. One potential challenge is noise accumulation. In this paper, we explore noise accumulation in high dimensional two-group classification. First, we revisit a previous assessment of noise accumulation with principal component analyses, which yields a different threshold for discriminative ability than originally identified. Then we extend our scope to its impact on classifiers developed with three common machine learning approaches---random forest, support vector machine, and boosted classification trees. We simulate four scenarios with differing amounts of signal strength to evaluate each method. After determining noise accumulation may affect the performance of these classifiers, we assess factors that impact it. We conduct simulations by varying sample size, signal strength, signal strength proportional to the number predictors, and signal magnitude with random forest classifiers. These simulations suggest that noise accumulation affects the discriminative ability of high-dimensional classifiers developed using common machine learning methods, which can be modified by sample size, signal strength, and signal magnitude. We developed the measure total signal index (TSI) to track the trends of total signal and noise accumulation.

This paper considers a new identifiability condition for additive noise models (ANMs) in which each variable is determined by an arbitrary Borel measurable function of its parents plus an independent error. It has been shown that ANMs are fully recoverable under some identifiability conditions, such as when all error variances are equal. However, this identifiable condition could be restrictive, and hence, this paper focuses on a relaxed identifiability condition that involves not only error variances, but also the influence of parents. This new class of identifiable ANMs does not put any constraints on the form of dependencies, or distributions of errors, and allows different error variances. It further provides a statistically consistent and computationally feasible structure learning algorithm for the identifiable ANMs based on the new identifiability condition. The proposed algorithm assumes that all relevant variables are observed, while it does not assume faithfulness or a sparse graph. Demonstrated through extensive simulated and real multivariate data is that the proposed algorithm successfully recovers directed acyclic graphs.

Sophie Achard, Jean-François Coeurjolly

Source: Statist. Surv., Volume 4, 117--147.

Abstract:
This paper gives an overview of the problem of estimating the Hurst parameter of a fractional Brownian motion when the data are observed with outliers and/or with an additive noise by using methods based on discrete variations. We show that the classical estimation procedure based on the log-linearity of the variogram of dilated series is made more robust to outliers and/or an additive noise by considering sample quantiles and trimmed means of the squared series or differences of empirical variances. These different procedures are compared and discussed through a large simulation study and are implemented in the R package dvfBm.

Zeng Li, Clifford Lam, Jianfeng Yao, Qiwei Yao.

Source: The Annals of Statistics, Volume 47, Number 6, 3382--3412.

Abstract:
Testing for white noise is a classical yet important problem in statistics, especially for diagnostic checks in time series modeling and linear regression. For high-dimensional time series in the sense that the dimension $p$ is large in relation to the sample size $T$, the popular omnibus tests including the multivariate Hosking and Li–McLeod tests are extremely conservative, leading to substantial power loss. To develop more relevant tests for high-dimensional cases, we propose a portmanteau-type test statistic which is the sum of squared singular values of the first $q$ lagged sample autocovariance matrices. It, therefore, encapsulates all the serial correlations (up to the time lag $q$) within and across all component series. Using the tools from random matrix theory and assuming both $p$ and $T$ diverge to infinity, we derive the asymptotic normality of the test statistic under both the null and a specific VMA(1) alternative hypothesis. As the actual implementation of the test requires the knowledge of three characteristic constants of the population cross-sectional covariance matrix and the value of the fourth moment of the standardized innovations, nontrivial estimations are proposed for these parameters and their integration leads to a practically usable test. Extensive simulation confirms the excellent finite-sample performance of the new test with accurate size and satisfactory power for a large range of finite $(p,T)$ combinations, therefore, ensuring wide applicability in practice. In particular, the new tests are consistently superior to the traditional Hosking and Li–McLeod tests.

Mingjie Liang, René L. Schilling, Jian Wang.

Source: Bernoulli, Volume 26, Number 1, 664--693.

Abstract:
We present a general method to construct couplings of stochastic differential equations driven by Lévy noise in terms of coupling operators. This approach covers both coupling by reflection and refined basic coupling which are often discussed in the literature. As applications, we prove regularity results for the transition semigroups and obtain successful couplings for the solutions to stochastic differential equations driven by additive Lévy noise.

Luca M. Giordano, Maria Jolis, Lluís Quer-Sardanyons.

Source: Bernoulli, Volume 26, Number 1, 352--386.

Abstract:
In this article, we consider the quasi-linear stochastic wave and heat equations on the real line and with an additive Gaussian noise which is white in time and behaves in space like a fractional Brownian motion with Hurst index $Hin (0,1)$. The drift term is assumed to be globally Lipschitz. We prove that the solution of each of the above equations is continuous in terms of the index $H$, with respect to the convergence in law in the space of continuous functions.

Ben Warren
Apr 8, 2020; 40:3130-3140
Neurobiology of Disease

Acoustic overexposure, such as listening to loud music too often, results in noise-induced hearing loss. The pathologies of this prevalent sensory disorder begin within the ear at synapses of the primary auditory receptors, their postsynaptic partners and their supporting cells. The extent of noise-induced damage, however, is determined by overstimulation of primary auditory receptors, upstream of where the pathologies manifest. A systematic characterization of the electrophysiological function of the upstream primary auditory receptors is warranted to understand how noise exposure impacts on downstream targets, where the pathologies of hearing loss begin. Here, we used the experimentally-accessible locust ear (male, Schistocerca gregaria) to characterize a decrease in the auditory receptor's ability to respond to sound after noise exposure. Surprisingly, after noise exposure, the electrophysiological properties of the auditory receptors remain unchanged, despite a decrease in the ability to transduce sound. This auditory deficit stems from changes in a specialized receptor lymph that bathes the auditory receptors, revealing striking parallels with the mammalian auditory system.

SIGNIFICANCE STATEMENT Noise exposure is the largest preventable cause of hearing loss. It is the auditory receptors that bear the initial brunt of excessive acoustic stimulation, because they must convert excessive sound-induced movements into electrical signals, but remain functional afterward. Here we use the accessible ear of an invertebrate to, for the first time in any animal, characterize changes in auditory receptors after noise overexposure. We find that their decreased ability to transduce sound into electrical signals is, most probably, due to changes in supporting (scolopale) cells that maintain the ionic composition of the ear. An emerging doctrine in hearing research is that vertebrate primary auditory receptors are surprisingly robust, something that we show rings true for invertebrate ears too.

Statistical regularities in natural sounds facilitate the perceptual segregation of auditory sources, or streams. Repetition is one cue that drives stream segregation in humans, but the neural basis of this perceptual phenomenon remains unknown. We demonstrated a similar perceptual ability in animals by training ferrets of both sexes to detect a stream of repeating noise samples (foreground) embedded in a stream of random samples (background). During passive listening, we recorded neural activity in primary auditory cortex (A1) and secondary auditory cortex (posterior ectosylvian gyrus, PEG). We used two context-dependent encoding models to test for evidence of streaming of the repeating stimulus. The first was based on average evoked activity per noise sample and the second on the spectro-temporal receptive field. Both approaches tested whether differences in neural responses to repeating versus random stimuli were better modeled by scaling the response to both streams equally (global gain) or by separately scaling the response to the foreground versus background stream (stream-specific gain). Consistent with previous observations of adaptation, we found an overall reduction in global gain when the stimulus began to repeat. However, when we measured stream-specific changes in gain, responses to the foreground were enhanced relative to the background. This enhancement was stronger in PEG than A1. In A1, enhancement was strongest in units with low sparseness (i.e., broad sensory tuning) and with tuning selective for the repeated sample. Enhancement of responses to the foreground relative to the background provides evidence for stream segregation that emerges in A1 and is refined in PEG.

SIGNIFICANCE STATEMENT To interact with the world successfully, the brain must parse behaviorally important information from a complex sensory environment. Complex mixtures of sounds often arrive at the ears simultaneously or in close succession, yet they are effortlessly segregated into distinct perceptual sources. This process breaks down in hearing-impaired individuals and speech recognition devices. By identifying the underlying neural mechanisms that facilitate perceptual segregation, we can develop strategies for ameliorating hearing loss and improving speech recognition technology in the presence of background noise. Here, we present evidence to support a hierarchical process, present in primary auditory cortex and refined in secondary auditory cortex, in which sound repetition facilitates segregation.

Noise cancellation removes unwanted sounds. The best noise-cancelling headphones let you block out the world around you to enjoy your music...or the sweet sound of silence.

The Meizu HD60 ANC over-ear headphones were unveiled alongside the Meizu 17 flagships and they are a serious piece of kit. They feature active noise cancellation, of course, but there's more to them than that. Meizu HD60 ANC over-ear headphones The HD60 is Hi-Res certified, so it will deliver high-quality audio. They connect over Bluetooth 5.0 and support aptX. There's an analog plug if you want to use a 3.5mm jack too. Noise cancellation is implemented by two chips. Sony's CDX3775 handles the ANC part while a Qualcomm chip with cVc does noise reduction during...

Last year, I wrote a blog post entitled Modeling Oscillators with Arbitrary Phase Noise Profiles . We now have an easier way to do this. Starting in MMSIM 13.1 , you can specify the phase noise as an instance parameter in Spectre sources, including...(read more)

Did you check out the new Pnoise and Hbnoise Choosing Analyses forms in the MMSIM 15.1 and IC6.1.7 /ICADV12.2 releases? These forms have been significantly improved and simplified. The Direct Plot Form has also been enhanced and is much easy to use....(read more)

The other day, I happened to sneak out some time for myself after having sent the kids to play in the neighborhood park. I made myself a hot cup of coffee and settled on the couch hoping to enjoy the silence in the house. But was it really ...(read more)

Hello, I looking for reaching minimal NOISE FIRUGE by peaking a combination of the RLC on the output load as shown bellow.
I tried to do it with PNOISE  but it gives me an error on the |f(in)| i am not sure regarding the sidebands in my case(its not a mixer)

How can i show Noise Figure and optimize it using my output RLC?

Thanks

Hi,

i am designing a broadband (100 MHz -6 GHz BW) receiver chain for  radar/rcs measurement tester. i will put Low noise amplifier after antenna input followed by mixed(10 MHz IF BW and digitizer.

I am facing problem regarding LAN. bandwidth of LAN is  approx 6 GHz(100 MHz-6GHz), gain 25-35 dB, with NF less than 2. I am uncertain about noise floor at the output of LNA.  I dont know exact SNR at the input of LNA but it shall be good.System operation will be on stepped CW waveform so receiver input signal will sweep over the BW and some step size.

so LNA output r noise floor will be? i assume, we can neglect thr role of input noise because it will be lesser than internal noise of LNA.

will it be LNA internal noise (Thermal noise due to BW) only ?

will it be LNA internal noise (Thermal noise due to BW)  + LAN Gain ? -78+25 =-53 dB? internal noise shall be lesser because NF is less than 3 . 

i have practically observed that that output noise floor is much lesser then even thermal noise( over LNA BW). i have gone through some tutorial where  formula says( internal noise+input noise)+gain. in  my case input noise shall be much less than theoretical internal noise. 

Thanks

Hi, when I applied a voltage divider implemented by two 100-ohm resistors to a 2Vpp 5GHz vsin source, the phase noise simulation using pnoise/fullspectrum with different types, jitter and source have different results. The simulated output noise results are 165.76aV2/Hz for pmjitter case, and 828.79zV2/Hz for source case. The source case result equals to the output noise calculation.

For my application, the output will be applied to driven circuits and thus pm jitter is concerned. As the pmjitter is based on the noise sampling at the threshold crossings, I was wondering how spectre gets the pmjitter resullts since sampling white noise with infinite bandwidth is impossible to my knowledge?

Interestingly, the Jee result by integration from 10kHz to 2.5GHz is ~41fs and is closed to Jee,rms from the transient noise simulation. I am also not sure how these results come and match each other. If applying the voltage divider output to drive next stages, I was wondering to what extent I can trust the input jitter from these simulations? Thank you.

Microchip Announces the 53100A Phase Noise Analyzer for Precision Oscillator Characterization

Stamford, Connecticut – February 03, 2020 – HARMAN International, a wholly-owned subsidiary of Samsung Electronics Co., Ltd. focused on connected technologies for automotive, consumer and enterprise markets, has launched the world’s first active road...

For 30 years, one man has been obsessed with the whisperings of the aurora borealis. His search for its origins may finally be over

Sony has managed to best its top-of-the-line noise cancelling earbuds with a new, improved, and best of all, cheaper model.

Chris has to finish writing this summary so he can start building his new PC. So….the folks talk about E3 and some stuff and amiibos...

Trying to make sense of calamities that have already caused more destruction to people’s livelihoods than the Great Recession

Video conferencing platforms are winning in the lockdown

Brighton and Hove Albion are looking into playing crowd noises through speakers at their Amex Stadium home should football return behind closed doors.

Apparently kids are meant to be seen and not heard.

Open terrace in Kimmel Center was too hot or too noisy; now it's fixed.