A Fully Vector Quantised Self-Excited Vocoder
A Fully Vector Quantised Self-Excited Vocoder
A computationally efficient stochastic vector quantisation (VQ) scheme for the quantisation of the LPC parameters with less than 25 bits is proposed. The complexity of the self-excited vocoder (SEV) is reduced by employing fast algorithms based on an efficient representation of the innovation sequence. When deploying the suggested VQ scheme in the improved SEV, good communications speech quality has been resulted at 4.8 Kb/s. When the bit rate is increased to 6.8 Kb/s, near-toll quality speech has been achieved.
124-128
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Salami, R.
26be415d-faf0-4afd-8ba4-7cfed400933d
Appleby, D.
dee31432-384a-4772-acf6-434f17e369ce
May 1989
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Salami, R.
26be415d-faf0-4afd-8ba4-7cfed400933d
Appleby, D.
dee31432-384a-4772-acf6-434f17e369ce
Hanzo, L., Salami, R. and Appleby, D.
(1989)
A Fully Vector Quantised Self-Excited Vocoder.
ICASSP'89, Glasgow, United Kingdom.
23 - 26 May 1989.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A computationally efficient stochastic vector quantisation (VQ) scheme for the quantisation of the LPC parameters with less than 25 bits is proposed. The complexity of the self-excited vocoder (SEV) is reduced by employing fast algorithms based on an efficient representation of the innovation sequence. When deploying the suggested VQ scheme in the improved SEV, good communications speech quality has been resulted at 4.8 Kb/s. When the bit rate is increased to 6.8 Kb/s, near-toll quality speech has been achieved.
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More information
Published date: May 1989
Additional Information:
Event Dates: 23-26 May 1989 Organisation: ICASSP Address: Glasgow, UK
Venue - Dates:
ICASSP'89, Glasgow, United Kingdom, 1989-05-23 - 1989-05-26
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257993
URI: http://eprints.soton.ac.uk/id/eprint/257993
PURE UUID: d67d7dd0-37df-4e08-823d-52bcc85c4e78
Catalogue record
Date deposited: 15 Jul 2003
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
L. Hanzo
Author:
R. Salami
Author:
D. Appleby
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