Sentences with phrase «of harmonic frequencies»

In this sense, we can verify the harmonic contribution curves which featured the flute with regard to the range of harmonic frequencies for musical instruments.
But the undermining of bands harmonic frequencies, see table 2, to some extent hinder the identification of specific instruments such as percussion, which have conferred linked to several of the harmonic frequency bands analyzed before.

Not exact matches

Researchers leveraged harmonics to transform recordings of normal voice commands into supersonic frequencies.
But all the hormone - treated females had much more acute hearing for notes up to 300 Hz, nicely encompassing the male's amorous hum, which has base frequency of 100 Hz and harmonics of 200 and 300 Hz.
The researchers also found that mammals modulate the vibrato in these calls over greater frequency extents when the number of harmonic overtones per formant is low, suggesting that it's used as a mechanism to improve formant perception in calls with low spectral density.
The two lowest frequency resonances, R1 (approximately 300 to 900 Hz) and R2 (approximately 800 to 3,000 Hz), play an important role in speech, providing high power for harmonics of fundamental frequencies that are close to them.
In contrast, the lower fundamental frequencies of male voices can not compete as easily with the power of an orchestra; male singers, therefore, must often rely on their higher harmonics in order to be heard.
Self - referencing is carried out in practice by passing some of the laser light through a so - called second - harmonic generation crystal, which doubles the light's frequency.
A number of crystals produce this effect, called frequency doubling or harmonic generation, to various degrees.
It has been shown, however, that the sound generated at the source can exhibit harmonic overtones (Beckers et al., 2003) and that cyclical movements of the hyoid skeleton or expansion of the cervical esophagus filter these out of the signal by tuning the oropharyngeal — esophageal cavity (OEC) to the fundamental frequency of the song (Riede et al., 2004; Riede et al., 2006; Riede and Suthers, 2009).
Modeling changes in the observed harmonic frequencies indicates that the spectral characteristics of seismic data can provide important information about hydraulic fracture geometry and fluid pressure at depth, leading to important insights into subglacial hydrologic processes.
Second harmonic light is a nonlinear optical property in which photons with the same frequency interact with a nonlinear material to produce new photons at twice the energy and half the wavelength of the originals.
This light is then beamed into a second crystal of KTP (potassium titanyl phosphate) which has a non-linear optical characteristic and generates a second harmonic of the input frequency at 0.5 micrometres.
His most important contributions include theory of high harmonic generation by low frequency laser fields and atto - second physics, quantum optics of dielectric media, studies of Bose - Einstein condensates and their excitations (solitons, phase fluctuations), theory of entanglement, and more recently studies of strongly correlated many body atomic and quantum optical systems.
The harmonic frequency comb, however, can use a larger multiple of that frequency.
Using a technique called bispectral analysis, they analyzed changes to heart rate dynamics in two types of meditation and found that, while different, both shifted «phase coupled harmonics» to higher frequencies.
This discovery was made by Dr. Royal Rife, a microbiologist who developed the use of «harmonic frequencies» to vibrate the microbes until they «exploded» and died.
Among these are cited bassoon, trumpet, trombone, tuba, acoustic and electric bass, tenor sax, guitars, guitars, cymbals, drums and bass drum whose harmonics are located from the upper limit of the frequency range that we reviewed (6).
Considering Table 2, which show below shows the ranges of frequencies associated with the fundamental and harmonics of a set of musical instruments.
It was from this characterization we have fixed values of frequency (frequency bands) on which contributions were certain harmonics of each segment (fragment) Music: 32, 64, 125, 200, 500, 1k25, 2k55, 10k, 20kHz.
Of 630-1000 Hz are the fundamental frequencies and harmonic strings, keyboards and percussion.
In the analysis of the results was considered the highlight of the frequency bands in which it has the largest contribution from the harmonic fragments studied.
Category: English, Public Institution, Transversal Studies, Your experiences, Your ideas · Tags: classical music, folk, frequency, harmonic contribution, harmonics, In the times of India, jazz, rock, timbre
Those harmonics whose frequency is at the upper limit of human hearing, ie, above 20 k are not perceptible to our ears, and neither are those whose intensity level is below the audible threshold for this frequency.
The most serious of these sounds is called the primary and the others are called partial harmonics which can be and if they are similar to the harmonic series derived from the same fundamental frequency, are also called rates or concordant.
This fragmentation process enabled the implementation of the music harmonic analysis from the Fast Fourier Transform (FFT — Fast Fourier Transform) in order to identify the harmonics associated to specific points (discrete) for each test and study in correspondence of each them (points) with values of frequency and amplitude.
Different car speeds (and thus, frequencies of the gears teeth meshing) will increase and decrease the intensity of the sound as it passes through different «Harmonics» - http://en.wikipedia.org/wiki/Harmonic.
Based on harmonics physics and math (something down a musician's alley I suspect; — RRB --RRB- the center frequency of CO2 absorption is 15um and equates to 1.325x10e - 20 joules / photon.
http://contextearth.com/2013/12/18/csalt-model-and-the-hale-cycle/ (BTW, anything periodic that has characteristics of a delta - function pulse, will by definition have all the harmonics of the fundamental frequency).
The inner planets and the outer planets have their own separate periods of harmonic oscillation as a result of billions of years of gravitational, tidal and electromagnetic interactions that are in a resonate pattern, the inner planets have a beat frequency of about 6558 day period with the outer planets settled into a period of somewhere between 172 and 179 years.
It may be that the 3:2 ratio in both frequency and amplitude along with the phase matching is characteristic of some kind of spherical harmonic arising from the rotation of the core relative to the crust.
To test that hypothesis I tried fitting a single sawtooth with both phase and amplitude of the individual harmonics unlocked (one can not «unlock» the frequencies of harmonics, they are locked by definition of «harmonic.»)
The 4th and 5th harmonics come through as muffled, as typical of high frequencies passing through a thick mechanical barrier.
Just for the record, outside the literature, the correlation between planetary harmonics and Steinhilber's TSI was first noted at the talkshop in July last year by Tim Channon in this comment, http://tallbloke.wordpress.com/2011/02/21/tallbloke-and-tim-channon-a-cycles-analysis-approach-to-predicting-solar-activity/#comment-5019 when he published this plot of his model using planetary harmonic frequencies: http://daedalearth.files.wordpress.com/2011/02/sbf-tsi-a.png
It's the one dimensional things like strings and pipes that produce the quantized harmonic series of frequencies.
Until the natural frequency (s) of the earth's climate systems is known, it can not be ruled out that there is a 60 year natural harmonic.
Multi-scale harmonic model for solar and climate cyclical variation throughout the Holocene based on Jupiter — Saturn tidal frequencies plus the 11 - year solar dynamo cycle (PDF), Nicola Scafetta 03/2012, Journal of Atmospheric and Solar - Terrestrial Physics
The reason this works well on solar cycles and El Ninos is that these tend to congregate around the low - order harmonics of that filter's 2.88 nHz (= 11 - year period) fundamental frequency, which boxcar filters remove completely — it's the half - harmonics (1.5, 2.5,...) that get through.
Modern research have further confirmed that: (1) the planetary orbital periods can be approximately deduced from a simple system of resonant frequencies; (2) the solar system oscillates with a specific set of gravitational frequencies, and many of them (e.g. within the range between 3 yr and 100 yr) can be approximately constructed as harmonics of a base period of ∼ 178.38 yr; (3) solar and climate records are also characterized by planetary harmonics from the monthly to the millennia time scales.
We show that a harmonic constituent model based on the major astronomical frequencies revealed in the aurora records and deduced from the natural gravitational oscillations of the solar system is able to forecast with a reasonable accuracy the decadal and multidecadal temperature oscillations from 1950 to 2010 using the temperature data before 1950, and vice versa.
Fluance implemented 3D Sound technology that uses bass boost and psychoacoustics to calculate precise harmonics that are related to the fundamental tones of sound, virtually reproducing the lowest frequencies, just as if there was a subwoofer in the room.
Featuring 103db of room - rocking, crystal clear sound with less than 1 % total harmonic distortion, the sound bar also includes a center channel for enhanced dialog clarity and a deep bass module with incredible low - end frequency, effectively eliminating the need for an external subwoofer.
a b c d e f g h i j k l m n o p q r s t u v w x y z