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VR-CELP Codec for AMR Speech Coding by dv is a document available to read on EtoBox.

This document proposes a new 6.1 to 13.3 kbps variable rate speech codec called VR-CELP for use in the Adaptive Multi-Rate standard. VR-CELP uses four different codec modes that can seamlessly switch between rates of 6.1, 8.1, 9.5, and 13.3 kbps depending on channel conditions. It employs techniques like linear predictive coding, adaptive codebooks, and algebraic codebooks to encode speech at different bit rates while maintaining quality. It also includes a new error concealment strategy based on estimation

Author

dv

Language

EN