Title :
Efficient sampling rate conversion with cubic splines
Author :
De Carvalho, João M. ; Hanson, John V.
Author_Institution :
Univ. Federal da Paraiba, Brazil
Abstract :
An efficient implementation of a two-stage fractional sampling rate conversion for digital audio signals is presented, based on: local cubic spline interpolation. The first (up-converter) stage is computationally optimal, using polyphase networks. The second (down-converter) stage generally requires coefficient calculations for each sample, but is also efficient because of the local nature of the cubic spline interpolation
Keywords :
acoustic signal processing; audio signals; digital signals; interpolation; splines (mathematics); coefficient calculations; digital audio signals; down-converter; fractional sampling rate conversion; local cubic spline interpolation; polyphase networks; signal processing; up-converter; CD recording; Computer networks; Finite impulse response filter; Frequency; Interpolation; Polynomials; Sampling methods; Signal sampling; Signal to noise ratio; Telecommunication standards;
Conference_Titel :
Telecommunications Symposium, 1990. ITS '90 Symposium Record., SBT/IEEE International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/ITS.1990.175643
