5.5 Functions

This section describes the individual functions for implementing filtering operations. For more information on digital filters refer to Alan Oppenheim and Ronald Schafer’s “Discrete-time Signal Processing”, Prentice Hall, 1989. For implementation details of Least Mean Square FIR filters, please refer to T. Hsia’s “Convergence Analysis of LMS and NLMS Adaptive Algorithms”, Proc. ICASSP, pp. 667-670, 1983, as well as Sangil Park and Garth Hillman’s “On Acoustic-Echo Cancellation Implementation with Multiple Cascadable Adaptive FIR Filter Chips”, Proc. ICASSP, 1989.