Sorry, you need to enable JavaScript to visit this website.

facebooktwittermailshare

Audio Bandwidth Detection in the EVS Codec

Abstract: 

Speech and audio codecs are usually designed such that they encode all the frequency bands of the input signal spectrum. If the higher bands do not contain any perceptually meaningful content, these codecs often do not work optimally as they assign part of the available bit budget to encode these bands. In this paper we describe a bandwidth detection algorithm that determines the effective audio bandwidth of the input signal. This information is used to set the codec to its optimal configuration and consequently increase the coding efficiency for band-limited signals by allocating bits to encode only the useful bandwidth. The presented algorithm has been used in the new codec for Enhanced Voice Services (EVS), recently standardized by 3GPP, but it can be employed in other codecs as well.

up
0 users have voted:

Paper Details

Authors:
Milan Jelinek, Wolfgang Jaegers
Submitted On:
23 February 2016 - 1:44pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Vaclav Eksler
Document Year:
2015
Cite

Document Files

GlobalSIP15_BWD_presentation.ppt

(665)

Subscribe

[1] Milan Jelinek, Wolfgang Jaegers, "Audio Bandwidth Detection in the EVS Codec", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/315. Accessed: Dec. 08, 2019.
@article{315-15,
url = {http://sigport.org/315},
author = {Milan Jelinek; Wolfgang Jaegers },
publisher = {IEEE SigPort},
title = {Audio Bandwidth Detection in the EVS Codec},
year = {2015} }
TY - EJOUR
T1 - Audio Bandwidth Detection in the EVS Codec
AU - Milan Jelinek; Wolfgang Jaegers
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/315
ER -
Milan Jelinek, Wolfgang Jaegers. (2015). Audio Bandwidth Detection in the EVS Codec. IEEE SigPort. http://sigport.org/315
Milan Jelinek, Wolfgang Jaegers, 2015. Audio Bandwidth Detection in the EVS Codec. Available at: http://sigport.org/315.
Milan Jelinek, Wolfgang Jaegers. (2015). "Audio Bandwidth Detection in the EVS Codec." Web.
1. Milan Jelinek, Wolfgang Jaegers. Audio Bandwidth Detection in the EVS Codec [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/315