FreeCalypso > hg > efr-experiments
view src/cnst.h @ 7:1fd613cec7ab
Theory-and-mystery: document written
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 17 Apr 2024 17:14:41 +0000 |
parents | 56410792419a |
children |
line wrap: on
line source
/*--------------------------------------------------------------------------* * Codec constant parameters (coder, decoder, and postfilter) * *---------------------------------------------------------------------------*/ #define L_TOTAL 320 /* Total size of speech buffer. */ #define L_WINDOW 240 /* Window size in LP analysis */ #define L_FRAME 160 /* Frame size */ #define L_FRAME_BY2 80 /* Frame size divided by 2 */ #define L_SUBFR 40 /* Subframe size */ #define M 10 /* Order of LP filter */ #define MP1 (M+1) /* Order of LP filter + 1 */ #define AZ_SIZE (4*M+4) /* Size of array of LP filters in 4 subfr.s */ #define PIT_MIN 18 /* Minimum pitch lag */ #define PIT_MAX 143 /* Maximum pitch lag */ #define L_INTERPOL (10+1) /* Length of filter for interpolation */ #define PRM_SIZE 57 /* Size of vector of analysis parameters */ #define SERIAL_SIZE (244+1) /* bits per frame + bfi */ #define MU 26214 /* Factor for tilt compensation filter 0.8 */ #define AGC_FAC 29491 /* Factor for automatic gain control 0.9 */