A Computationally Efficient CELP Codec with Stochastic Vectorquantisation of LPC Parameters
Salami, R A, Hanzo, L and Appleby, D (1989) A Computationally Efficient CELP Codec with Stochastic Vectorquantisation of LPC Parameters. In, URSI'89, Erlangen, W-, Germany, , 140-143.
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Description/Abstract
In this contribution, computationally efficient CELP structures are proposed for low-complexity speech coding below 6.4Kbits/s. We also report on a new approach for low bit rate speech coding using binary excitation pulses, which delivers the quality of the CELP codec without the excitation codebook storage, and with a very simple excitation determination procedure. Furthermore, we propose a switched-adaptive stochastic vector quantisation scheme for quantising the line spectrum frequencies using 22 bits without any perceivable spectral distortion.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Event Dates: September 1989 Organisation: URSI Address: Erlangen, West Germany |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control |
| Item ID: | 251411 |
| Date Deposited: | 14 Mar 2002 |
| Last Modified: | 02 Mar 2012 12:38 |
| Contributors: | Salami, R A (Author) Hanzo, L (Author) Appleby, D (Author) |
| Date: | September 1989 |
| Additional Information: | Event Dates: September 1989 Organisation: URSI Address: Erlangen, West Germany |
| Status: | Published |
| Further Information: | Google Scholar |
| URI: | http://eprints.soton.ac.uk/id/eprint/251411 |
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