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Title:
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Improving Pitch Tracking Performance in Hard Noise Conditions by a Preprocessing Based on Mathematical Morphology
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Author:
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Martí i Puig, Pere; Solé-Casals, Jordi; Reig Bolaño, Ramon
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Other authors:
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Universitat de Vic. Escola Politècnica Superior; Universitat de Vic. Grup de Recerca en Tecnologies Digitals; International Conference on Non-Linear Speech Processing NOLISP (2009 : Vic); NOLISP 2009 |
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Notes:
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In this paper we show how a nonlinear preprocessing of speech
signal -with high noise- based on morphological filters improves the
performance of robust algorithms for pitch tracking (RAPT). This result
happens for a very simple morphological filter. More sophisticated ones could
even improve such results. Mathematical morphology is widely used in image
processing and has a great amount of applications. Almost all its formulations
derived in the two-dimensional framework are easily reformulated to be
adapted to one-dimensional context |
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Subject(s):
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-Tractament del senyal |
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Rights:
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(c) Universitat de Vic
Tots els drets reservats
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Document type:
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Book Part |
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