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Harmonic Components Extraction in Recorded Piano Tones

It is sometimes desirable, in the purpose of analyzing recorded piano tones, to remove from the original signal the noisy components generated by the hammer strike and by other elements involved in the piano action. In this article we propose an efficient method to achieve such result, based on adaptive filtering and automatic estimation of fundamental frequency and inharmonicity; the final method, applied on a recorded piano tone, produces two separate signals containing respectively the hammer knock and the harmonic components. Some sound examples to listen for evaluation are available on the web as specified in the paper.

Author: Cella, Carmine Emanuele
Affiliation: Università di Bologna, Bologna, Italy
AES Convention:128 (May 2010) Paper Number:8111 Import into BibTeX
Subject:Audio Content Management—Audio Information Retrieval

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