Articulatory vocal tract synthesis in Supercollider

Damian Thomas Murphy; Mátyás  Jani; Sten Ternström

Articulatory vocal tract synthesis in Supercollider

Damian Thomas Murphy, Mátyás Jani, Sten Ternström

Research output: Contribution to conference › Paper › peer-review

Abstract

The APEX system [1] enables vocal tract articulation using a reduced set of user controllable parameters by means of Principal Component Analysis of X-ray tract data. From these articulatory profiles it is then possible to calculate cross-sectional area function data that can be used as input to a number of articulatory based speech synthesis algorithms. In this paper the Kelly-Lochbaum 1-D digital waveguide vocal tract is used, and both APEX control and synthesis engine have been implemented and tested in SuperCollider. Accurate formant synthesis and real-time control are demonstrated, although for multi-parameter speech-like articulation a more direct mapping from tract-to-synthesizer tube sections is needed. SuperCollider provides an excellent framework for the further exploration of this work.

Original language	English
Pages	307-313
Number of pages	7
Publication status	Published - 30 Nov 2015
Event	18th Int. Conference on Digital Audio Effects (DAFx-15) - Trondheim, Norway Duration: 30 Nov 2015 → 3 Dec 2015 http://www.ntnu.edu/web/dafx15/

Conference

Conference	18th Int. Conference on Digital Audio Effects (DAFx-15)
Country/Territory	Norway
City	Trondheim
Period	30/11/15 → 3/12/15
Internet address	http://www.ntnu.edu/web/dafx15/

Keywords

digital audio
acoustics
speech processing
Voice acoustics

Access to Document

http://www.ntnu.edu/documents/1001201110/1266017954/DAFx-15_submission_32.pdfLicence: Unspecified

Cite this

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title = "Articulatory vocal tract synthesis in Supercollider",

abstract = "The APEX system [1] enables vocal tract articulation using a reduced set of user controllable parameters by means of Principal Component Analysis of X-ray tract data. From these articulatory profiles it is then possible to calculate cross-sectional area function data that can be used as input to a number of articulatory based speech synthesis algorithms. In this paper the Kelly-Lochbaum 1-D digital waveguide vocal tract is used, and both APEX control and synthesis engine have been implemented and tested in SuperCollider. Accurate formant synthesis and real-time control are demonstrated, although for multi-parameter speech-like articulation a more direct mapping from tract-to-synthesizer tube sections is needed. SuperCollider provides an excellent framework for the further exploration of this work.",

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TY - CONF

T1 - Articulatory vocal tract synthesis in Supercollider

AU - Murphy, Damian Thomas

AU - Jani, Mátyás

AU - Ternström, Sten

PY - 2015/11/30

Y1 - 2015/11/30

N2 - The APEX system [1] enables vocal tract articulation using a reduced set of user controllable parameters by means of Principal Component Analysis of X-ray tract data. From these articulatory profiles it is then possible to calculate cross-sectional area function data that can be used as input to a number of articulatory based speech synthesis algorithms. In this paper the Kelly-Lochbaum 1-D digital waveguide vocal tract is used, and both APEX control and synthesis engine have been implemented and tested in SuperCollider. Accurate formant synthesis and real-time control are demonstrated, although for multi-parameter speech-like articulation a more direct mapping from tract-to-synthesizer tube sections is needed. SuperCollider provides an excellent framework for the further exploration of this work.

AB - The APEX system [1] enables vocal tract articulation using a reduced set of user controllable parameters by means of Principal Component Analysis of X-ray tract data. From these articulatory profiles it is then possible to calculate cross-sectional area function data that can be used as input to a number of articulatory based speech synthesis algorithms. In this paper the Kelly-Lochbaum 1-D digital waveguide vocal tract is used, and both APEX control and synthesis engine have been implemented and tested in SuperCollider. Accurate formant synthesis and real-time control are demonstrated, although for multi-parameter speech-like articulation a more direct mapping from tract-to-synthesizer tube sections is needed. SuperCollider provides an excellent framework for the further exploration of this work.

KW - digital audio

KW - acoustics

KW - speech processing

KW - Voice acoustics

M3 - Paper

SP - 307

EP - 313

T2 - 18th Int. Conference on Digital Audio Effects (DAFx-15)

Y2 - 30 November 2015 through 3 December 2015

ER -