Phase-Only Speech Reconstruction Using Very Short Frames

Erfan Loweimi, Seyed Mohammad Ahadi, Hamid Sheikhzadeh

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

Abstract

This paper aims to investigate potentials existing in speech phase spectrum. We observed that the window shape and scale incompatibility error (SIE) are two important factors which deeply influence the quality of phase-only reconstructed speech. After evaluating effects of different windows, we found Chebyshev window with dynamic range of 25 to 30 dB the best option. Inspiring from Hilbert transform relations, we removed the SIE and found the reason for quality improvement of ordinary phase-only reconstructed speech by frame length extension. Results show that phase spectrum, even in very short frame lengths such as 16 ms, can be highly informative.
Original languageEnglish
Title of host publicationProc. Interspeech 2011
PublisherISCA
Pages2501-2504
Number of pages4
Publication statusPublished - 2011
EventInterspeech 2011- 12th annual Conference of the International Speech Communication Association - Florence, Italy
Duration: 27 Aug 201131 Aug 2011

Conference

ConferenceInterspeech 2011- 12th annual Conference of the International Speech Communication Association
Country/TerritoryItaly
CityFlorence
Period27/08/1131/08/11

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