The computation of harmonic ratio is similar to that of MPEG-7 audio fundamental frequency, except for the used autocorrelation function. The second measure in the audio harmonicity descriptor is the upper limit of harmonicity. The upper limit of harmonicity is the frequency beyond which the ...
The congruences obtained allow us to find nice p-analogues of Leshchiner's series for zeta values and to refine a result due to M. Hoffman and J. Zhao about the set of generators of the multiple harmonic sums of weight 7 and 9 modulo p. As a further application we provide a new ...
4. Given that $\left\{\dfrac{1}{5}, \dfrac{1}{7}, \dfrac{1}{9}, ….\right\}$ is a harmonic series, what is the expression for the $n$th term of the series? $\sum_{n=1}^{\infty} \dfrac{1}{n + 3}$ $\sum_{n=1}^{\infty} \dfrac{1}{2n + 3}$ $\sum_{n=...
In this paper a method is presented for modeling the observed frequency spectrum of a rapidly oscillating Ap star as a sum of axisymmetric spherical harmonics of low degree within the assumptions of the oblique pulsator model. It is shown that such a sum with l not greater than 3 is ...
On the other hand, if two discrete abelian groups have this synthesizability property, then so does their direct sum, as well. In this paper, we show that if two locally compact abelian groups have this synthesizability property and at least one of them is discrete, then their direct sum...
Harmonic distortion is but one outcome of this bending. It helps to understand that some kind of amplitude-related non-linearity in the AUT is always the first cause; that harmonic distortion is but one symptom of the sum of the non-linearities in the AUT's signal path; and that other ki...
“excitation”) as a sum of sinusoidal components that could then be individually perturbed and recombined with the original time-varying spectrotemporal filter, yielding inharmonic speech (Fig.1). Demonstrations of the resulting stimuli can be found online at:http://mcdermottlab.mit.edu/inharmonic...
Harminv is a free program (and accompanying library) to solve the problem of "harmonic inversion." Given a discrete, finite-length signal that consists of a sum of finitely-many sinusoids (possibly exponentially decaying), it determines the frequencies, decay constants, amplitudes, and phases of ...
A boundary value problem for the time-harmonic acoustic field scattered by an open-ended circular tube of finite length is solved by a Galerkin method. The... RW Scharstein - 《J.acoust.soc.am》 被引量: 7发表: 1992年 Dynamic Stress Intensity Problem of SH-Wave by Double Linear Cracks ne...
If we consider the sum of the exchange energy and the correlation energy, LDA yields a good result due to a cancellation of errors and the GGA’s do not improve upon LDA. Table 2. Model system with spring constant k ≈ 3.6 × 10− 6 a.u. Exchange-correlation energy for the ...