Lines Matching refs:xn
63 Word16 xn[], /* (i) Q_xn: Target vector. */
65 Word16 Q_xn, /* (i) : xn and y1 format */
68 Word16 g_coeff[], /* (i) : Correlations <xn y1> <y1 y1> */
131 * coeff[1] = -2 xn y1 *
133 * coeff[3] = -2 xn y2 *
136 * Product <y1 y1> and <xn y1> have been compute in G_pitch() and *
142 coeff[1] = negate(g_coeff[2]); /* coeff[1] = -2 xn y1 */
153 /* Compute scalar product -2*<xn[],y2[]> */
155 coeff[3] = extract_h(L_negate(Dot_product12_asm(xn, y2, L_subfr, &exp)));
157 coeff[3] = extract_h(L_negate(Dot_product12(xn, y2, L_subfr, &exp)));
160 exp_coeff[3] = (exp - 8) + Q_xn; /* -9 (y2 Q9), +1 (2 xn y2) */