Title :
A new efficient implementation of TDAC synthesis filterbank based on Radix-2 FFT
Author :
Anup, K.C. ; Bangla, Ajay Kumar
Author_Institution :
Audio Group, Emuzed - A Flextronics Co., Bangalore, India
Abstract :
An improved implementation of the TDAC synthesis filterbank is proposed which is well suited for fixed point implementation on embedded platforms. The new implementation is based on computation of IMDCT by Radix-2 FFT. A new fast and regular structure has been derived by modifying the pre-processing, FFT and post-processing stages of the implementation. An efficient implementation of windowing for embedded platforms is also suggested.
Keywords :
channel bank filters; embedded systems; fast Fourier transforms; time-domain analysis; TDAC synthesis filterbank; embedded platforms; fixed point implementation; post-processing stages; radix-2 FFT; time domain alias cancellation; Decoding; Discrete cosine transforms; Europe; Filter banks; Read only memory; Signal processing algorithms;
Conference_Titel :
Signal Processing Conference, 2006 14th European
Conference_Location :
Florence
