Wideband Speech Coding Using Forward/Backward Adaptive Prediction with Mixed Time/Frequency Domain Excitation

Authors:

Schnitzler, J. ,  Eggers, J. ,  Erdmann, C. ,  Vary, P.

Book Title:

Proceedings of IEEE Workshop on Speech Coding (SCW)

Pages:

p.p. 4-6

Address:

Haikko Manor, Porvoo, Finland

Date:

Jun. 1999

Language:

English

Abstract

This paper describes a wideband (7 kHz) speech coding scheme using code-excited linear prediction (CELP) with mixed time and frequency domain excitation. The proposed frequency domain innovation can be used alternatively or in parallel to a time domain codebook. In addition an improved synthesis filter is used consisting of a signal dependent combination of a forward adaptive and a backward adaptive (FA/BA) structure. An experimental codec operating at 15.5 or 20.0 kbit/s is demonstrated.

Download

BibTeX

Copyright © by IKS
schnitzler99a.pdf

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

---