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Co-optimization of FFT and FIR in a delayless acoustic echo canceller implementation

Publiceringsår: 2000
Språk: Engelska
Sidor: 241-244
Volym: 5
Dokumenttyp: Konferensbidrag


In application specific implementation of digital signal processing algorithms optimization is important for a low power solution, not only on block level but also between blocks. This paper presents a co-optimization of a fast Fourier transform and a finite impulse response filter in a silicon implementation of an acoustic echo. The optimization gain can be measured in the number of operations and memory accesses performed per second, and therefore processing power. The optimization can also be applied to other algorithms with a similar constellation of Fourier transforms and finite impulse response filters



  • Electrical Engineering, Electronic Engineering, Information Engineering


IEEE International Symposium on Circuits and Systems (ISCAS)
Geneva, Switzerland
"©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE."
  • ISBN: 0-7803-5482-6

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