This paper outlines several interpolation algorithms for asynchronous sampling-rate conversion. Based on a multistage approach, the use of polynomial interpolation, Lagrange interpolation, and spline interpolation are considered with special attention given to real-time computation of polyphase filter coefficients. A DSP-based real-time implementation and measurement results are presented.

Authors: Zölzer, Udo; Boltze, Thomas
Affiliation: Technical University of Hamburg, Hamburg, Germany
AES Convention: 97 (November 1994) Paper Number: 3898
Publication Date: November 1, 1994
Subject: DSP in the Digital Domain

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