Reply by ahgu ●October 6, 20032003-10-06
cbrev(x,x,NX/2);
rfft(x,NX,1);
unpacki(x,NX);
cbrev(x,x,NX/2);
rifft(x,NX,1); When I get the result back, the data is reduced by a factor of 128. How to
do FFT/IFFT without loss of quantization bits? Anyone has routine I can use?

thanks
Andrew