iosr-JVSP   Volume-11 ~ Issue-6 ~ Nov. - Dec. 2021

ABSTRACT: Half-unit-biased (HUB) is a new design that is based on the displacement of the digits represented by half the unit last performed. This arrangement makes the two's complement and round operations closest by avoiding any carry propagation. This saves energy, time and area consumption. Given that the IEEE floating point standard uses unbiased rounding as the default mode, this feature is also desirable for HUB approaches. In this article, we study unbiased rounding for HUB floating point addition both within independent operation and within FMA. We show two different options to eliminate bias by eliminating the sum results either partially or completely. Implementation results of the proposed architecture to help designers decide what their best option.

Keywords: HUB format, unbiased rounding, Floating point , IEEE.

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ABSTRACT: Today the synthetic speech of highest quality, generated by existing speech synthesis systems are not close to actual human speech. As the number of applications for synthetic speech increases, the naturalness and the intangibility of synthetic speech will become an important factor in determining its use. This paper presents a comparative study on investigating the naturalness and the intelligibility of the newly proposed Auto Regressive Moving Average (ARMA) based speech synthesis method for female voice. The synthesized speech was analyzed based on subjective and objective.....

Key Word: Auto Regressive Moving Average (ARMA), Speech intelligibility; Naturalness; signal-to-noise ratio (SNR); peak signal-to-noise ratio (PSNR) and mean square error (MSE); Diagnostic Rhyme Test

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ABSTRACT: In this work, the well-known Kramers–Kronig (K-K) relation is reviewed in the context of the frequency domain response function of a linear and causal medium. K-K relation is a bidirectional mathematical expression which relates the real and imaginary parts of a given complex function analytic in the upper half plane. The Fourier integral can be applied to the complete frequency response of a physical system to yield a causal time-domain impulse response. The frequency response of the system being invariant is described under the Hilbert
transform. One of the pairs of the K-K relation expresses the real part of a complex function in terms of an infinite integral involving the imaginary.......

Keywords –K-K relation, FFT, Oscillator model, Optical spectroscopy, Hilbert transform

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