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An Analysis of Pitch-Shifting Algorithms

The frequently used algorithms for pitch shifting in modern digital sampling keyboards are analyzed using a common mathematical framework. The mathematically derived performance characteristics are compared, showing the strengths and limitations of the various techniques. Of particular interest are the comparisons of the various orders of digital interpolators. Audio examples to support the conclusions will be presented.

Author: Rossum, Dave
Affiliation: E-mu Systems, Inc., Scotts Valley, CA
AES Convention:87 (October 1989) Paper Number:2843 Import into BibTeX
Subject:Digital Audio Electronics

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