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2 edition of Combination effects of tone and duration parameters on perceived noisiness found in the catalog.

Combination effects of tone and duration parameters on perceived noisiness

Karl S. Pearsons

Combination effects of tone and duration parameters on perceived noisiness

by Karl S. Pearsons

  • 370 Want to read
  • 9 Currently reading

Published by National Aeronautics and Space Administration; for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va. in [Washington] .
Written in English

    Subjects:
  • Airplanes -- Noise.,
  • Noise -- Measurement.

  • Edition Notes

    Statementby Karl S. Pearsons.
    SeriesNASA CR-1283, NASA contractor report ;, NASA CR-1283.
    ContributionsBolt, Beranek, and Newman, inc., Langley Research Center.
    Classifications
    LC ClassificationsTL521.3.C6 A3 no. 1283
    The Physical Object
    Paginationiii, 49 p.
    Number of Pages49
    ID Numbers
    Open LibraryOL5013731M
    LC Control Number76601233

    Measurements. The spastic tone increase was assessed in two ways: (1) clinically with the modified Ashworth scale 12 and (2) technically with a modified form 13 of Wartenberg's 14 pendulum test of. 3. Next, experiment with using a very slow LFO to modulate the delay time. Used subtly, this creates a pleasant amount of movement in the delay. Some plug-ins include an LFO, but if yours doesn't, you can create a similar effect by routing a separate MIDI LFO plug-in to control the delay-time parameter, or draw the modulation in using automation.

    A laboratory study was designed in which the annoyance was investigated for 14 different impulse sound types produced by various firearms ranging in caliber from to mm. Sixteen subjects rated the annoyance for the simulated conditions of (1) being outdoors, and (2) being indoors with the windows closed. In the latter case, a representative outdoor-to-indoor .   A great deal of researches indicate that auditory warnings can improve the alertness of operators to abnormalities and assist them in quick identification of hazards and in shortening operators’ reaction time [1, 2, 3].Auditory warning has been widely applied in many fields, especially in the field of aviation [4, 5, 6].Cockpit audio warning system through the .

      Here we extend these findings by showing that time itself can adaptively change perceived duration. This finding is consistent with a recent channel-based model of time that showed adaptation effects for long exposures of repeated temporal intervals. Regarding the neural basis for such effects, one possibility is that incoming sensory signals.   These pedals also work with any combination guitar/amplifier. The Synergy pedals also have 2 x Buffered Outs, and 1 hardwired/True Bypass. Another feature the pedals have is with the 2 Buffered Outs you can run the pedal into 2 different amplifiers, also allowing to run 1 amp clean, and then add Drives/Fuzz to the other amplifier.


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Combination effects of tone and duration parameters on perceived noisiness by Karl S. Pearsons Download PDF EPUB FB2

COMBINATION EFFECTS OF TONE AND DURATION PARAMETERS ON PERCEIVED NOISINESS By Karl S. Pearsons Bolt Beranek and Newman Inc. Combination effects of tone and duration parameters on perceived noisiness.

NASA CR (PMID) Abstract Citations; Related Articles; Data; BioEntities; External Links ' ' Pearsons KS NASA Contractor Report. NASA CR. United States. National Aeronautics and Space Author: Pearsons Ks.

PEARSONS, Combination effect of tone and duration parameters on perceived noisiness, National Aeronautics and Space Administration, Report on Contract No.

NAS 6. GRIrFrrHs and F. LANGDON, Subjective response to road traffic noise, J. Sound Vib., 8 () by: 5. Maximum perceived noisiness.

The maximum value of all of the 24 values of n(i) that occurs at the k-th instant of time. N(k) noy: Total perceived noisiness. The total perceived noisiness at the k-th instant of time calculated from the instantaneous values of n.

Psychoacoustics is the branch of psychophysics involving the scientific study of sound perception and audiology—how humans perceive various sounds. More specifically, it is the branch of science studying the psychological responses associated with sound (including noise, speech, and music).Psychoacoustics is an interdisciplinary field of many areas, including psychology.

The relationship between objective measures and perceived noisiness was examined by multiple regression analysis. Sound quality indices were developed based on psychoacoustical and ACF parameters.

Three different time intervals (5, 20, and 80 s) were presented in random order. The duration of each interval was signaled by the appearance and disappearance of an asterisk on the video monitor.

At the end of an interval, subjects estimated its duration. Subjects then reproduced the interval by pressing a button for the perceived duration. The effect of various types of nonlinear distortion on the perceived quality of speech and music signals was examined.

In experiments 1 and 2, "artificial" distortions were used, including hard. In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.

Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an. Both common knowledge and measurements of acoustical parameters (see, e.g., Luce and Clark, 8. Luce, D., and Clark, M.

“ Physical correlates of brass-instrument tones,” J. 42, – ) tell us that timbre also varies within the same instrument, depending on its pitch and the dynamic at which it is played, as well as other.

Previous studies of the noisiness of aircraft flyovers have investigated the effects of spectral shape, duration, modulation and multiple tones. In these prior studies the test stimuli were systematically varied along a single dimension so that the effects of these parameters could be studied In an orderly fashion.

N Instantaneous Total Perceived Noisiness Level PNL Perceived Noise Level [PNdB] PNLT Tone-Corrected Perceived Noise Level [TPNLdB] PNLTM Maximum Tone-Corrected Perceived Noise Level [TPNLdB] C Tone Correction Factor [dB] D Duration Correction Factor [dB] L. Equivalent Continuous Sound Pressure Level [dB].

An equal-loudness contour is a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon and is arrived at by reference to equal-loudness contours.

By definition, two sine waves of differing frequencies are said to have. The intervention staff received 1 week of primarily educational training on enriched caregiving including making eye contact, pointing to objects, naming things the child sees during routine caregiving, engaging children in common events with educational value (reading a book, going for a walk, reciprocal verbal play), and implementing an.

Color/Tone Interactive, Color/Tone Auto, and Stepchart produce the most detailed results, but noise is also measured in Colorcheck, SFR, SFRplus, eSFR ISO, and Uniformity.

ISO Visual Noise estimates the visual strength of noise using the noise spectrum, a model of the human visual system, and viewing conditions. No significant main effect of listener's sex, F 1, =p, and of its interaction with stimuli variant, F 1, =p, were found.

The results of the LMM on gender ratings of girl exemplars revealed a significant main effect of stimuli variant, F 15, =p. An unfortunate combination of biology and math favors degradation of the human world. Information warfare units sway elections, hate groups recruit, and nihilists get amazing bang for the buck.

To analyze the effects on P3a and P3b peak parameters, 48 repeated-measures ANOVAs were carried out with either perceptual reference (C, P, HQ/N, P, HQ/N, C, HQ) or impairment (Impaired, HQ) as within-subject factor and either peak amplitude or peak latency as dependent variable for each combination of channel (Fz, Cz, Pz; see Sect.

), ERP. At the same time, it can be perceived as demanding and aggressive Although the red colored spaces have courage, strength, warmth, energy, basic survival, “fight or flight,” stimulation, masculinity, excitement effects on people (Wright, ). Defiance, aggression, visual impact, and strain are among the negative impacts of red color.

EMOTIONAL EFFECTS OF MUSIC: PRODUCTION RULES KLAUS R. SCHERER AND MARCEL R. ZENTNER It is an ancient, and very pervasive, idea that music expresses emotion. Apart from the copious literature to this effect contributed by composers, musicologists, and philoso- phers, there is also solid empirical evidence from psychological research, reviewed in.

The effective perceived noise level measure (EPNL) is derived from PNL values and is intended to provide a complete rating of an aircraft fly-over. EPNL values add both a duration correction and a tone correction to PNL values. The duration correction ensures that longer duration events are rated as more disturbing.Here, is a time variable, and, and are the amplitude, frequency, and initial phase of the oscillator, respectively.

In the simplest, strictest configuration of additive synthesis, these parameters are constants: scales roughly with perceived loudness, and with pitch. For a single oscillator in isolation, the initial phase is of minimal perceptual relevance, and is usually not represented in.Auditory beat stimulation may be a promising new tool for the manipulation of cognitive processes and the modulation of mood states.

Here, we aim to review the literature examining the most current applications of auditory beat stimulation and its targets. We give a brief overview of research on auditory steady-state responses and its relationship to auditory beat stimulation .