Objective evaluation of phase and magnitude only reconstructed speech: New considerations

E. Loweimi, Seyed Mohammad Ahadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

The aim of this paper is to make some improvements in the synthesis part of Analysis-Modification-Synthesis (AMS) framework to reconstruct speech with higher quality. In previous works based on this framework the number of iterations was fixed on 100. This number of iterations was not chosen in accordance with a specific measure. In this paper, we monitored the quality of reconstructed speech per iteration and through a heuristic criterion, controlled the number of iterations. Our results showed that the required number of iterations depends on frame duration, applied window and whether the speech signal is being reconstructed from magnitude or phase spectrum. In case of phase-only speech reconstruction we need larger number of iterations. By applying rectangular window, the phase-only reconstructed speech surpasses its magnitude-only counterpart in frames longer than 64 ms, qualitatively. However, in case of using Hamming window, depending on applying LSEE or OAM, phase-only reconstructed speech will have better quality than its magnitude-only counterpart in frames longer than 256 ms and 128 ms, respectively.
Original languageEnglish
Title of host publication10th International Conference on Information Science, Signal Processing and their Applications (ISSPA 2010)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages117-120
Number of pages4
ISBN (Electronic)978-1-4244-7167-6
ISBN (Print)978-1-4244-7165-2
DOIs
Publication statusPublished - 1 May 2010
Event10th International Conference on Information Sciences, Signal Processing and their Applications - Kuala Lumpur, Malaysia
Duration: 10 May 201013 May 2010

Conference

Conference10th International Conference on Information Sciences, Signal Processing and their Applications
Abbreviated titleISSPA 2010
Country/TerritoryMalaysia
CityKuala Lumpur
Period10/05/1013/05/10

Keywords / Materials (for Non-textual outputs)

  • speech processing
  • objective evaluation
  • speech reconstruction
  • analysis modification-synthesis
  • AMS
  • speech signal
  • phase spectrum
  • Hamming window
  • Speech enhancement
  • Speech
  • Iterative speech reconstruction
  • magnitude spectrum
  • quality assessment

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