Fast Additive Sinusoidal Synthesis With a Subband Sinusoidal Method

Author

Xue Wen ; Sandler, Mark

Author_Institution

Queen Mary Univ. of London, London, UK

Volume

20

Issue

5

fYear

2013

fDate

May-13

Firstpage

467

Lastpage

470

Abstract

We propose a subband sinusoidal (SS) synthesis algorithm for fast additive synthesis of time-varying sinusoids. The algorithm is based on a subband sinusoidal method which links a narrow band of the discrete Fourier transform (DFT) with a sinusoidal representation, facilitating direct access to sinusoidal parameters within the DFT framework. This enables the development of the proposed sinusoid synthesizer that exhibits accuracy close to direct sinusoidal modelling synthesis and efficiency comparable to conventional overlap-add with fast Fourier transforms.

Keywords

discrete Fourier transforms; fast Fourier transforms; signal synthesis; DFT framework; SS synthesis algorithm; direct sinusoidal modelling synthesis; discrete Fourier transform; fast Fourier transforms; fast additive sinusoidal synthesis algorithm; subband sinusoidal method; time-varying sinusoids; Accuracy; Additives; Approximation methods; Baseband; Discrete Fourier transforms; Frequency modulation; Synthesizers; Non-stationary sinusoid synthesis; sampling and interpolation; short-time Fourier transform; spectral modelling synthesis;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2013.2250958

Filename

6473829