dec_lpc.h
上传用户：zhongxx05
上传日期：2007-06-06
资源大小：33641k
文件大小：1k
- /*
- *===================================================================
- * 3GPP AMR Wideband Floating-point Speech Codec
- *===================================================================
- */
- #ifndef DEC_LPC_H
- #define DEC_LPC_H
- #include "typedef.h"
- void D_LPC_isf_noise_d(Word16 *indice, Word16 *isf_q);
- void D_LPC_isf_isp_conversion(Word16 isf[], Word16 isp[], Word16 m);
- void D_LPC_isp_a_conversion(Word16 isp[], Word16 a[], Word16 m);
- void D_LPC_a_weight(Word16 a[], Word16 ap[], Word16 gamma, Word16 m);
- void D_LPC_isf_2s3s_decode(Word16 *indice, Word16 *isf_q, Word16* past_isfq,
- Word16 *isfold, Word16 *isf_buf, Word16 bfi);
- void D_LPC_isf_2s5s_decode(Word16 *indice, Word16 *isf_q, Word16 *past_isfq,
- Word16 *isfold, Word16 *isf_buf, Word16 bfi);
- void D_LPC_int_isp_find(Word16 isp_old[], Word16 isp_new[],
- const Word16 frac[], Word16 Az[]);
- void D_LPC_isf_extrapolation(Word16 HfIsf[]);
- #endif
English
