143     float *inr, *ini, *outr, *outi, *power;  in reduce_noise()  local
147     inr = lsx_calloc(WINDOWSIZE * 5, sizeof(float));  in reduce_noise()
148     ini = inr + WINDOWSIZE;  in reduce_noise()
156     memcpy(inr, window, WINDOWSIZE*sizeof(float));  in reduce_noise()
158     FFT(WINDOWSIZE, 0, inr, NULL, outr, outi);  in reduce_noise()
160     memcpy(inr, window, WINDOWSIZE*sizeof(float));  in reduce_noise()
161     lsx_apply_hann_f(inr, WINDOWSIZE);  in reduce_noise()
162     lsx_power_spectrum_f(WINDOWSIZE, inr, power);  in reduce_noise()
203     FFT(WINDOWSIZE, 1, outr, outi, inr, ini);  in reduce_noise()
204     lsx_apply_hann_f(inr, WINDOWSIZE);  in reduce_noise()
206     memcpy(window, inr, WINDOWSIZE*sizeof(float));  in reduce_noise()
211     free(inr);  in reduce_noise()