Error Resilient Speech Coding Using Sub-band Hilbert Envelopes
| Type of publication: | Conference paper |
| Citation: | Ganapathy_TSD2009-2_2009 |
| Booktitle: | 12th International Conference on Text, Speech and Dialogue, TSD 2009 |
| Series: | LNAI 5729 |
| Year: | 2009 |
| Month: | 9 |
| Publisher: | Springer - Verlag, Berlin Heidelberg 2009 |
| Location: | Pilsen, Czech Republic |
| ISSN: | 0302-9743 |
| ISBN: | 3-642-04207-4 |
| Crossref: | Ganapathy_TSD2009_2009: |
| Abstract: | Frequency Domain Linear Prediction (FDLP) represents a technique for auto-regressive modelling of Hilbert envelopes of a signal. In this paper, we propose a speech coding technique that uses FDLP in Quadrature Mirror Filter (QMF) sub-bands of short segments of the speech signal (25 ms). Line Spectral Frequency parameters related to au-toregressive models and the spectral components of the residual signals are transmitted. For simulating the effects of lossy transmission channels, bit-packets are dropped randomly. In the objective and subjective quality evaluations, the proposed FDLP speech codec is judged to be more resilient to bit-packet losses compared to the state-of-the-art Adaptive Multi-Rate Wide-Band (AMR-WB) codec at 12 kbps. |
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Idiap |
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| Added by: | [UNK] |
| Total mark: | 0 |
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