Paper Info
Title
A high performance, low latency, low power audio processing system for wideband speech over wireless links
Abstract
In this paper we present an audio processing system opti- mized for bi-directional wideband speech processing over wireless links. The system's architecture features a DSP core, a WOLA filterbank coprocessor and an I/O processor. We show how speech encoding, decoding and enhancement algorithms can be deployed simultaneously on this platform. The resulting system may include a combination of features that are usually not found when standard codecs are de- ployed on standard DSPs in wireless headsets. The algo- rithms can be combined through efficient re-use of the filter- bank coprocessor for oversampled and critically sampled subband processing. Such a system may include features such as low latency, ultra-low power consumption, resil- ience to background noises and music and the possibility to add forward error correction for graceful degradation in difficult RF environments.
Year
Venue
Keywords
2006
EUSIPCO
audio coding,channel bank filters,coprocessors,decoding,digital signal processing chips,headphones,radio links,signal denoising,speech codecs,speech coding,speech enhancement,dsp core architecture features,i-o processor,wola filterbank coprocessor reuse,bidirectional wideband speech processing,critically sampled subband processing,high performance low latency low power audio processing system,oversampled subband processing,speech decoding algorithm,speech encoding algorithm,speech enhancement algorithm,standard codecs,weighted overlap-add filterbank coprocessor,wireless headset,wireless links
Field
DocType
ISSN
Speech processing,Digital signal processing,Speech coding,Wideband audio,Voice activity detection,Computer science,Real-time computing,Coprocessor,Audio signal processing,Linear predictive coding
Conference
2219-5491
Citations 
PageRank 
References 
0
0.34
4
Authors
3
Name
Order
Citations
PageRank
Etienne Cornu1204.81
Alain Dufaux2345.61
David Hermann300.34