Real-Time Dynamic Articulations in the 2-D Waveguide Mesh Vocal Tract Model

Mullen, J.; Howard, David M.; Murphy, Damian

doi:10.1109/tasl.2006.876751

Cited by 39 publications

(38 citation statements)

References 15 publications

(17 reference statements)

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“…DWM models are generalizations to multiple dimensions of the concept of digital waveguides which have been used to simulate acoustical resonators such as vibrating strings [10], [27]. They have successfully been used in a number of acoustical modeling problems such as the modeling of the vocal tract [28], drum membranes [29], and room acoustics [30]- [32]. There are two types of DWM models, the W-DWM which employs wave variables and the K-DWM which employs Kirchhoff variables [33], [34].…”

Section: Dwm Modelsmentioning

confidence: 99%

Time-Domain Simulation of Directive Sources in 3-D Digital Waveguide Mesh-Based Acoustical Models

Hacıhabiboğlu¹,

Günel

Kondoz

2008

IEEE Trans. Audio Speech Lang. Process.

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Section: Dwm Modelsmentioning

confidence: 99%

Time-Domain Simulation of Directive Sources in 3-D Digital Waveguide Mesh-Based Acoustical Models

Hacıhabiboğlu¹,

Günel

Kondoz

2008

IEEE Trans. Audio Speech Lang. Process.

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“…The disadvantages of this proposed voice synthesis mechanism rest in its inability to simulate smooth, continuous dynamic changes to the tract area functions to facilitate articulated voice synthesis, and the high mesh sample rate f update required to ensure accurate tracking and mapping of vocal tract shape resulting in an implementation that can only work offline. Both of these problems have been analyzed and a solution proposed in a new implementation of the 2-D DWM [44]. In this new method, rather than mapping acoustic tube area function directly to the 2-D DWM geometry, a constant-width 2-D rectangular DWM, 17.5 cm long with f update = 44.1 kHz is used.…”

Section: -D Vocal Tract Modeling For Speech Synthesismentioning

confidence: 99%

“…Software developed to test the real-time dynamic behavior of this 2-D DWM vocal tract model is available for download and use at [47], and initial results based on this system were first presented in [44]. This application also facilitates real-time dynamic articulation.…”

Section: -D Vocal Tract Modeling For Speech Synthesismentioning

confidence: 99%

Acoustic Modeling Using the Digital Waveguide Mesh

Murphy

Kelloniemi²,

Mullen³

et al. 2007

IEEE Signal Process. Mag.

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eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. T he digital waveguide mesh (DWM) is a numerical simulation technique based on the definition of a regular spatial sampling grid for a particular problem domain, which in this specific case is a vibrating object capable of supporting acoustic wave propagation resulting in sound output. It is based on a simple and intuitive premise-the latter often considered important by the computer musicians who are the primary users of a sound synthesis algorithm-yet the emergent behavior is complex, natural, and capable of high-quality sound generation. Hence, the DWM has been applied in many areas of computer music research since it was first introduced by Van Duyne and Smith in 1993 [1]. This article is the first to attempt to consolidate and summarize this work. The interested reader is also directed to [2], where DWM modeling is considered in the more general context of discrete-time physics-based modeling for sound synthesis, and [3], where the DWM is examined within a rigorous theoretical and comparative framework for more established yet related wave scattering numerical simulation techniques. THE ONE-DIMENSIONAL DIGITAL WAVEGUIDEThe one-dimensional (1-D) digital waveguide is based on a time and space discretization of the d'Alembert solution to the 1-D wave equation. This approach to sound synthesis was first used in the Kelly-Lochbaum model of the human vocal tract for speech synthesis [4] and has parallels with other, more generally applied wave variable scattering modeling paradigms such as the transmission line matrix (TLM) method [5]

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“…A S A NUMERICAL solver for the wave equation, the digital waveguide mesh (DWM) approach is used in a variety of audio synthesis and acoustical modeling contexts including the vocal tract [1], musical instruments [2], [3], and room acoustics [4], [5]. DWM approach is equivalent to transmission line modeling (TLM) and finite-difference time-domain (FDTD) methods [6].…”

Section: Introductionmentioning

confidence: 99%