EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology
2nd INTERSPEECH Event

Aalborg, Denmark
September 3-7, 2001

                 

Wideband ACELP at 16 kb/s with Multi-band Excitation

Sílvia Pujalte, Asunción Moreno

Universitat Politècnica de Catalunya, Spain

This paper describes two wideband CELP coders at 16 kb/s. Their main feature is fast searching, achieving quality comparable to G.722 at 56 and 48 kb/s. Both the excitations derive from a multi-band algebraic structure in order to reduce computational complexity and bit allocation. The first one, the faster, has a full band excitation with two gains. The second one, which provides better quality, has a full band excitation with emphasized high frequencies. Analysis and error minimization are done over the full band.

Full Paper

Bibliographic reference.  Pujalte, Sílvia / Moreno, Asunción (2001): "Wideband ACELP at 16 kb/s with multi-band excitation", In EUROSPEECH-2001, 2001-2004.