Lines Matching refs:ac
75 const spx_word16_t *ac, /* in: [0...p] autocorrelation values */
81 spx_word16_t error = ac[0];
83 if (ac[0] == 0)
93 spx_word32_t rr = NEG32(SHL32(EXTEND32(ac[i + 1]),13));
95 rr = SUB32(rr,MULT16_16(lpc[j],ac[i - j]));
99 r = rr/(error+.003*ac[0]);
122 * ac(i) = > x(n) * x(n-i) for all n
130 spx_word16_t *ac, /* out: [0...lag-1] ac values */
165 ac[i] = SHR32(d, ac_shift);
177 * ac(i) = > x(n) * x(n-i) for all n
183 float *ac, /* out: [0...lag-1] ac values */
194 ac[lag] = d;
196 ac[0] += 10;
