icbsearch.h

voip原代码,不过没有电路图,不过可以参考别人的产品自己设计,祝你好运,

    
   /****************************************************************** 
     
    
    
    
       iLBC Speech Coder ANSI-C Source Code 
    
       iCBSearch.h         
    
       Copyright (c) 2001, 
       Global IP Sound AB. 
       All rights reserved. 
    
   ******************************************************************/ 
    
   #ifndef __iLBC_ICBSEARCH_H 
   #define __iLBC_ICBSEARCH_H 
    
   void iCBSearch( 
       iLBC_Enc_Inst_t *iLBCenc_inst,  
                           /* (i) the encoder state structure */ 
       int *index,         /* (o) Codebook indices */ 
       int *gain_index,/* (o) Gain quantization indices */ 
       float *intarget,/* (i) Target vector for encoding */     
       float *mem,         /* (i) Buffer for codebook construction */ 
       int lMem,           /* (i) Length of buffer */ 
       int lTarget,    /* (i) Length of vector */ 
       int nStages,    /* (i) Number of codebook stages */ 
       float *weightDenum, /* (i) weighting filter coefficients */ 
       float *weightState, /* (i) weighting filter state */ 
       int block           /* (i) the subblock number */ 
   ); 
    
   #endif