Searched refs:log_approx (Results 1 – 2 of 2) sorted by relevance
29 #define log_approx(x) (0.69315f*log2_approx(x)) macro47 u = (s*(128*log_approx(1+scale*x)/LOG256)); in lin2ulaw()
74 …noise[i] = (int)floor(.5 + noise_std*.707*(log_approx(rand()/(float)RAND_MAX)-log_approx(rand()/(f… in compute_noise()