Perceptual cost function for cross-fading based concatenation

Research output: Contribution to journalConference article

Abstract

In earlier research, we applied a linear weighted cross-fading function to ensure smooth concatenation. However, this can cause unnaturally shaped spectral trajectories. We propose context-sensitive cross-fading. To train this system, a perceptually validated cost function is needed, which is the focus of this paper. A corpus was designed to generate a variety of formant trajectory shapes. A perceptual experiment was performed and a multiple linear regression model was applied to predict perceptual quality ratings from various distances between cross-faded and natural trajectories. Results show that perceptual quality could be predicted well from the proposed distance measures.

Original languageEnglish (US)
Pages (from-to)732-735
Number of pages4
JournalProceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
StatePublished - Nov 26 2009
Event10th Annual Conference of the International Speech Communication Association, INTERSPEECH 2009 - Brighton, United Kingdom
Duration: Sep 6 2009Sep 10 2009

Keywords

  • Concatenation errors
  • Cross-fading function
  • Formant frequency
  • Perceptual score

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Signal Processing
  • Software
  • Sensory Systems

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