Abstract
The aim of this paper is to investigate the effects of window shape and its length on the quality of phase-only and magnitude-only reconstructed speech. Speech signal is reconstructed via Least Square Error Estimation (LSEE) and Overlap Add (OLA) methods from its magnitude-only and phase-only spectra. The effects of using Hamming and rectangular windows have been studied, too. To evaluate the quality of reconstructed speech, we employed three objective measures: Log Likelihood Ratio (LLR), Weighted Spectral Slope (WSS) and PESQ. Results show that in case of using Hamming window, phase-only reconstructed speech surpasses its magnitude-only counterpart in frames longer than 256 ms qualitatively. Rectangular window seems to be a better choice in comparison to Hamming window in case of phase-only signal reconstruction, while for magnitude-only reconstructed speech, Hamming window results in better quality and intelligibility. LSEE has better performance than OLA in case of magnitude-only speech reconstruction while OLA outperforms LSEE in case of phase-only speech reconstruction.
Original language | English |
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Title of host publication | 2010 4th International Symposium on Communications, Control and Signal Processing (ISCCSP) |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-4244-6287-2 |
ISBN (Print) | 978-1-4244-6285-8 |
DOIs | |
Publication status | Published - 1 Mar 2010 |
Event | 2010 4th International Symposium on Communications, Control and Signal Processing - Limassol, Cyprus Duration: 3 Mar 2010 → 5 Mar 2010 |
Conference
Conference | 2010 4th International Symposium on Communications, Control and Signal Processing |
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Abbreviated title | ISCCSP 2010 |
Country/Territory | Cyprus |
City | Limassol |
Period | 3/03/10 → 5/03/10 |
Keywords / Materials (for Non-textual outputs)
- least squares approximations
- mean square error methods
- speech processing
- speech signal reconstruction
- phase only spectrum
- magnitude spectrum
- magnitude-only reconstructed speech
- phase-only reconstructed speech
- least square error estimation
- overlap add methods
- log likelihood ratio
- weighted spectral slope
- Speech analysis
- Signal processing
- Speech processing
- Speech recognition
- Speech coding
- Shape control
- Signal processing algorithms
- Performance evaluation
- Testing
- Process control
- Magnitude spectrum
- phase spectrum
- speech reconstruction
- objective evaluation