13th Annual Conference of the International Speech Communication Association

Portland, OR, USA
September 9-13, 2012

Enumerative Algebraic Coding for ACELP

Tom Bäckström

International Audio Labs Erlangen, Fraunhofer IIS, Erlangen, Germany

Speech coding algorithms based on Algebraic Code Excited Linear Prediction (ACELP) quantize and code the residual signal with a fixed algebraic codebook. This paper generalizes the conventional encoding to provide optimal bit consumption for all codebook designs by enumerating all possible states. The codebook designed is aimed for constant bit-rate applications applied on mobile devices.

Full Paper

Bibliographic reference.  Bäckström, Tom (2012): "Enumerative algebraic coding for ACELP", In INTERSPEECH-2012, 931-934.