Implementation issues for acoustic echo cancellers

Author

Berkeman, Anders ; Öwall, Viktor ; Torkelson, Mats

Author_Institution

Dept. of Appl. Electron., Lund Univ., Sweden

Volume

1

fYear

1999

fDate

1999

Firstpage

97

Abstract

The high computational complexity of acoustic echo cancellation algorithms requires application specific implementations to sustain real time signal processing with affordable power consumption. This is especially true for systems where a delayless approach is considered important, e.g. wireless communication systems. The proposed paper presents architectural considerations to reach a feasible hardware solution

Keywords

acoustic signal processing; application specific integrated circuits; computational complexity; digital signal processing chips; echo suppression; low-power electronics; real-time systems; ASDSP; acoustic echo cancellers; affordable power consumption; application specific DSP; application specific implementations; architectural considerations; computational complexity; delayless approach; feasible hardware solution; real time signal processing; wireless communication systems; Acoustic signal processing; Adaptive filters; Computational complexity; Delay estimation; Echo cancellers; Energy consumption; Finite impulse response filter; Loudspeakers; Microphones; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. 42nd Midwest Symposium on

Conference_Location

Las Cruces, NM

Print_ISBN

0-7803-5491-5

Type

conf

DOI

10.1109/MWSCAS.1999.867218

Filename

867218