Objective
The main goal of this proposal is the development and application of time-domain, inverse-scattering methods to the reconstruction of unknown potential functions in the one-dimensional acoustical Klein-Gordon equation. This equation is used to model the mechanism of speech. It has been recently shown that the acoustical Klein-Gordon equation precisely determines the natural resonance frequencies (formants) of the human vocal tract.
The novelty of this model is that the sound is specified by a unique configuration of barriers and wells along the tract, by analogy with quantum-mechanical wave-scattering problems. This is in contrast to conventional models based on the Webster horn equation and the vocal tract area function, where the same sound can be produced u sing many different vocal tract area functions and little progress has been made over many years.
In consequence, this new result opens up the possibility of identification of sounds on the basis of the shape of the vocal-tract potential alone. We intend to develop techniques for the reconstruction of this potential from real human speech. In the preliminary part of the research we will examine different numerical techniques for solving the forward problem - the sound production. We then intend to develop the method of the vocal tract potential inversion from the output pressure-wave data, based on methods developed in reflection seismology.
In the last part of the project we intend to apply these techniques to real human vowels. The proposed research has the potential to lead to better speech recognition devices then existing ones which currently do not take vocal tract physics into account and cannot adapt to natural human speech styles, such as ordinary conversation.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2004-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
LONDON
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.