A Frequency Domain Algorithm for Wave Separation

Giovanni De Sanctis; Maarten Van Walstijn

A Frequency Domain Algorithm for Wave Separation

Giovanni De Sanctis, Maarten Van Walstijn

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Abstract

We propose a frequency domain adaptive algorithm for
wave separation in wind instruments. Forward and backward travelling waves are obtained from the signals acquired by two microphones placed along the tube, while the
separation ?lter is adapted from the information given by a
third microphone. Working in the frequency domain has a
series of advantages, among which are the ease of design of
the propagation ?lter and its differentiation with respect to
its parameters.
Although the adaptive algorithm was developed as a ?rst
step for the estimation of playing parameters in wind instruments it can also be used, without any modi?cations, for
other applications such as in-air direction of arrival (DOA)
estimation. Preliminary results on these applications will
also be presented.

Original language	English
Pages	498-505
Number of pages	8
Publication status	Published - Sep 2009
Event	Proc. 12th Int. Conference on Digital Audio Effects (DAFx-09) - Como, Italy Duration: 01 Sep 2009 → 01 Sep 2009

Conference

Conference	Proc. 12th Int. Conference on Digital Audio Effects (DAFx-09)
Country	Italy
City	Como
Period	01/09/2009 → 01/09/2009

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1 Active

R1747SON: Extraction of physical model parameters from music
Van Walstijn, M.
01/08/2005 → 17/12/2019
Project: Research

Cite this

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title = "A Frequency Domain Algorithm for Wave Separation",

abstract = "We propose a frequency domain adaptive algorithm forwave separation in wind instruments. Forward and backward travelling waves are obtained from the signals acquired by two microphones placed along the tube, while theseparation ?lter is adapted from the information given by athird microphone. Working in the frequency domain has aseries of advantages, among which are the ease of design ofthe propagation ?lter and its differentiation with respect toits parameters.Although the adaptive algorithm was developed as a ?rststep for the estimation of playing parameters in wind instruments it can also be used, without any modi?cations, forother applications such as in-air direction of arrival (DOA)estimation. Preliminary results on these applications willalso be presented.",

author = "Sanctis, {Giovanni De} and {Van Walstijn}, Maarten",

year = "2009",

month = sep,

language = "English",

pages = "498--505",

note = "Proc. 12th Int. Conference on Digital Audio Effects (DAFx-09) ; Conference date: 01-09-2009 Through 01-09-2009",

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T1 - A Frequency Domain Algorithm for Wave Separation

AU - Sanctis, Giovanni De

AU - Van Walstijn, Maarten

PY - 2009/9

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N2 - We propose a frequency domain adaptive algorithm forwave separation in wind instruments. Forward and backward travelling waves are obtained from the signals acquired by two microphones placed along the tube, while theseparation ?lter is adapted from the information given by athird microphone. Working in the frequency domain has aseries of advantages, among which are the ease of design ofthe propagation ?lter and its differentiation with respect toits parameters.Although the adaptive algorithm was developed as a ?rststep for the estimation of playing parameters in wind instruments it can also be used, without any modi?cations, forother applications such as in-air direction of arrival (DOA)estimation. Preliminary results on these applications willalso be presented.

AB - We propose a frequency domain adaptive algorithm forwave separation in wind instruments. Forward and backward travelling waves are obtained from the signals acquired by two microphones placed along the tube, while theseparation ?lter is adapted from the information given by athird microphone. Working in the frequency domain has aseries of advantages, among which are the ease of design ofthe propagation ?lter and its differentiation with respect toits parameters.Although the adaptive algorithm was developed as a ?rststep for the estimation of playing parameters in wind instruments it can also be used, without any modi?cations, forother applications such as in-air direction of arrival (DOA)estimation. Preliminary results on these applications willalso be presented.

M3 - Paper

SP - 498

EP - 505

T2 - Proc. 12th Int. Conference on Digital Audio Effects (DAFx-09)

Y2 - 1 September 2009 through 1 September 2009

ER -

A Frequency Domain Algorithm for Wave Separation

Abstract

Conference

Access to Document

R1747SON: Extraction of physical model parameters from music

Cite this