Contributors: Reyer, Steven

Date: 2017-08-22

frequency of the NIST radio station WWV on 10 MHz, as performed in north...oscillator interface. I tuned the radio to 9999.00 kHz USB and listened ... Measurements of the carrier frequency of the NIST radio station WWV on 10 MHz, as performed in north suburban Milwaukee, Wisconsin, during the solar eclipse of August 21, 2017. Details are in the file "readme.pdf". Steven Reyer, WA9VNJ, approx. Lat/Long = 43.218, -87.951. WAV file start time = 1400 UTC. Antenna is a DX Engineering RF-PRO-1B aimed north-south, receiver is a Yaesu FT-857D locked to a Trimble Thunderbolt GPS via an XRef-FT oscillator interface. I tuned the radio to 9999.00 kHz USB and listened for the resulting nominal 1000 Hz tone, which was measured by Spectrum Lab software, doing 512k-point FFTs, overlapping 75%, resulting in a measurement every 12 seconds.

Contributors: unknown

Date: 2015-08-19

oscillations, the brain's adjustment to rhythmic stimulation, is a central...oscillations and speech sound improves speech intelligibility. However...frequency. For original speech snippets (A), there is a strong bias of...time–frequency transform of cross-correlation functions (averaged across...oscillations passively following the low-level periodicities (e.g., in...Oscillation...frequencies including the gamma-range, whereas the other (high-level) ... Phase entrainment of neural oscillations, the brain's adjustment to rhythmic stimulation, is a central component in recent theories of speech comprehension: the alignment between brain oscillations and speech sound improves speech intelligibility. However, phase entrainment to everyday speech sound could also be explained by oscillations passively following the low-level periodicities (e.g., in sound amplitude and spectral content) of auditory stimulation—and not by an adjustment to the speech rhythm per se. Recently, using novel speech/noise mixture stimuli, we have shown that behavioral performance can entrain to speech sound even when high-level features (including phonetic information) are not accompanied by fluctuations in sound amplitude and spectral content. In the present study, we report that neural phase entrainment might underlie our behavioral findings. We observed phase-locking between electroencephalogram (EEG) and speech sound in response not only to original (unprocessed) speech but also to our constructed “high-level” speech/noise mixture stimuli. Phase entrainment to original speech and speech/noise sound did not differ in the degree of entrainment, but rather in the actual phase difference between EEG signal and sound. Phase entrainment was not abolished when speech/noise stimuli were presented in reverse (which disrupts semantic processing), indicating that acoustic (rather than linguistic) high-level features play a major role in the observed neural entrainment. Our results provide further evidence for phase entrainment as a potential mechanism underlying speech processing and segmentation, and for the involvement of high-level processes in the adjustment to the rhythm of speech.

Contributors: unknown

Date: 2012-12-12

oscillations after laser stimulation. The plots to the left show time-frequency...frequencies are displayed in each plot. Responses are computed as percentage...frequency band (C)....Oscillations ... Modern forms of music therapy are clinically established for various therapeutic or rehabilitative goals, especially in the treatment of chronic pain. However, little is known about the neuronal mechanisms that underlie pain modulation by music. Therefore, we attempted to characterize the effects of music therapy on pain perception by comparing the effects of 2 different therapeutic concepts, referred to as receptive and entrainment methods, on cortical activity recorded by magnetencephalography in combination with laser heat pain. Listening to preferred music within the receptive method yielded a significant reduction of pain ratings associated with a significant power reduction of delta-band activity in the cingulate gyrus, which suggests that participants displaced their focus of attention away from the pain stimulus. On the other hand, listening to self-composed “pain music” and “healing music” within the entrainment method exerted major effects on gamma-band activity in primary and secondary somatosensory cortices. Pain music, in contrast to healing music, increased pain ratings in parallel with an increase in gamma-band activity in somatosensory brain structures. In conclusion, our data suggest that the 2 music therapy approaches operationalized in this study seem to modulate pain perception through at least 2 different mechanisms, involving changes of activity in the delta and gamma bands at different stages of the pain processing system.

Contributors: unknown

frequency (the main acoustic correlate of perceived pitch) [1]. Remarkably...oscillating periodically at frequencies ranging from 10-45 Hz. The placement...frequency (F0) of bellow inhalation sections averages 27.1 Hz (range: ... During the breeding season, male koalas produce ‘bellow’ vocalisations that are characterised by a continuous series of inhalation and exhalation sections, and an extremely low fundamental frequency (the main acoustic correlate of perceived pitch) [1]. Remarkably, the fundamental frequency (F0) of bellow inhalation sections averages 27.1 Hz (range: 9.8–61.5 Hz [1]), which is 20 times lower than would be expected for an animal weighing 8 kg [2] and more typical of an animal the size of an elephant (Supplemental figure S1A). Here, we demonstrate that koalas use a novel vocal organ to produce their unusually low-pitched mating calls.

Contributors: Reyer, Steven

Date: 2017-07-26

frequencies, which can then be added to the 14999 kHz number....oscillator interface. Antenna is an RF-PRO-1B shielded magnetic loop,...frequency measurements are approximately 0.0384 Hz high, due the approximations...frequencies are near 15000 kHz. Calibration tests show that the audio ... Steven Reyer, WA9VNJ. Approx.Lat/Long: 43.218, -87.951. This 60-minute 15 MHz WWV recording was started at 1937 UTC on July 25, 2017, in preparation for the Solar Eclipse experiment in late August. The radio is a Yaesu FT-857D locked to a Trimble Thunderbolt GPSDO using an XRef-FT oscillator interface. Antenna is an RF-PRO-1B shielded magnetic loop, aimed N-S. Calibration of the radio and sample rate correction is determined using a second Trimble Thunderbolt GPS and Rigol DG1022Z GPS-locked signal generator. Spectrum Lab software is used to record the WAV file and to analyze incoming audio with sample rate of 11025 Hz. FFTs are 512k-point, 75% overlapping, yielding a new measurement every 12 seconds. Radio is tuned to 14999.00 kHz USB yielding audio around 1kHz (labeled "PeakFreq" in the txt file). Thus, the measured radio frequencies are near 15000 kHz. Calibration tests show that the audio frequency measurements are approximately 0.0384 Hz high, due the approximations in both the radio's DDS and the sample rate. This 0.0384 Hz number can be subtracted from the PeakFreq values to get corrected audio frequencies, which can then be added to the 14999 kHz number.

Contributors: unknown

Date: 2009-05-19

frequency assignment. ... In this paper we present two experiments on implementing interaction in sonification displays: the first focuses on recorded data (interactive navigation) and the second on data gathered in real time (auditory feedback).

Contributors: unknown

Date: 2004-10-20

oscillations in pores, leading to an acceleration of internal mass transfer...Oscillation model ... In previous papers [L.B. Datsevich, Appl. Catal. A 250 (2003) 125–141; L.B. Datsevich, Catal. Today 79–80 (2003) 341–348; L.B. Datsevich, Appl. Catal. A 247/1 (2003) 101–111] devoted to the oscillatory motion of liquid in catalyst pores in gas–liquid reactions with gas and/or heat production, some directions of catalyst and process development have been discussed. It has been supposed that modification of the pore structure of catalysts can provoke oscillations in pores, leading to an acceleration of internal mass transfer and to an increase in the overall reaction rate. The present paper deals with a confirmation of this theoretical conclusion. It shows that an unsophisticated change in the pore structure can intensify the process of 1-octene hydrogenation to n-octane on a Ni tablet catalyst up to three times.

Contributors: unknown

Date: 2007-01-14

Oscillator frequency is 200Hz for channel T4, and 300Hz for channel F4 ... To introduce a sound synthesis tool for human EEG rhythms that is applicable in real time.

Contributors: unknown

Date: 2010-05-20

time-frequency plots) of different auditory stimuli and how they relate...frequency sensitivity suggesting that the underlying primary auditory ...oscillations in central portions of the right AC appear to be relevant ... Auditory perceptual ‘restoration’ occurs when the auditory system restores an occluded or masked sound of interest. Behavioral work on auditory restoration in humans began over 50 years ago using it to model a noisy environmental scene with competing sounds. It has become clear that not only humans experience auditory restoration: restoration has been broadly conserved in many species. Behavioral studies in humans and animals provide a necessary foundation to link the insights being obtained from human EEG and fMRI to those from animal neurophysiology. The aggregate of data resulting from multiple approaches across species has begun to clarify the neuronal bases of auditory restoration. Different types of neural responses supporting restoration have been found, supportive of multiple mechanisms working within a species. Yet a general principle has emerged that responses correlated with restoration mimic the response that would have been given to the uninterrupted sound of interest. Using the same technology to study different species will help us to better harness animal models of ‘auditory scene analysis’ to clarify the conserved neural mechanisms shaping the perceptual organization of sound and to advance strategies to improve hearing in natural environmental settings.

Contributors: Mahesh Natra, Jayachandran Amudha

Date: 2018-02-22

... File Types Mendeley Test On 16 Feb 2018 - Version 1 (Published) File Types Mendeley Test On 17 Feb 2018 - Version 2 (Embargoed Till 31 Dec 2018) File Types Mendeley Test On 16 Feb 2019 - Version 3 (Embargoed Till 16 Feb 2019) File Types Mendeley Test On 22 Feb 2018 - Version 4 (Published)