Chatterjee, Saikat and Sreenivas, TV (2006) Comparison of Prediction Based LSF Quantization Methods using Split VQ. In: 9th International Conference on Spoken Language Processing/INTERSPEECH 2006, 2006, 2006, Pittsburgh, PA, pp. 237-240.
Full text not available from this repository. (Request a copy)Abstract
Further improvement in performance, to achieve near transparent quality LSF quantization, is shown to be possible by using a higher order two dimensional (2-D) prediction in the coefficient domain. The prediction is performed in a closed-loop manner so that the LSF reconstruction error is the same as the quantization error of the prediction residual. We show that an optimum 2-D predictor, exploiting both inter-frame and intra-frame correlations, performs better than existing predictive methods. Computationally efficient split vector quantization technique is used to implement the proposed 2-D prediction based method. We show further improvement in performance by using weighted Euclidean distance.
| Item Type: | Conference Paper |
|---|---|
| Publisher: | ISCA-International Speech Communication Association |
| Additional Information: | Copyright for this article belongs to ISCA-International Speech Communication Association. |
| Keywords: | LSF Quantization; Predictive Methods. |
| Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
| Date Deposited: | 08 Jan 2010 05:59 |
| Last Modified: | 08 Jan 2010 05:59 |
| URI: | http://eprints.iisc.ac.in/id/eprint/24234 |
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