ldvalues.h

在ADI的Blackfin系列DSP上编写的语音＆音频程序

#define PRINTF_SUPPORT 
#define MAX_PERMISSIBLE_ERROR  3
#define FiltOrd 10                     //filter order
#define TRUE 1
#define FALSE 0

typedef int fract32;
typedef short fract16;

segment ("mydata1") fract32 AutoCorr1[FiltOrd+1]=
{0x78489800,0x727782d4,0x67E96B6C,0x589D70A4,0x467FFBA4,0x32B1FF4E,0x1DE61E7E,
0x9CD029A,0xF689C640,0xE58D63CA,0xD6D982FA};
//0.93971538, 0.89427218, 0.811810901, 0.69230468, 0.55078073, 0.39605704, 
//0.23358517, 0.07656891, -0.07392045, -0.206622625, -0.32148707

segment ("mydata1") fract32 AutoCorr2[FiltOrd+1]=
{0X7FFFFFFF,0X46666666,0X3999999A,0X33333333,0X4147AE14,0X23D70A3D,0X11EB851F,
0X1D70A3D7,0XF5C28F5,0X10A3D70A,0XA3D70A3};
//{1, 0.55, 0.45, 0.4, 0.51, 0.28, 0.14, 0.23, 0.12, 0.13, 0.08};

segment ("mydata1") fract32 AutoCorr3[FiltOrd+1]=
{0X51256548, 0X4C905DE6,0X40310FC0,0X2E534A98,0X1A504DD8,0X70A203C,0XF6A208DE,
0XEA8682E2,0XE342D3D0,0XE1061342,0XE321B1E8};
//0.63395,0.59815,0.501497,0.36191,0.20557,0.05499,-0.07318,-0.16777,-0.224523,-
//0.24200,-0.22553

fract16 LpcExpd1[FiltOrd+1]=
{4096, -4640, -151, 869, 194, -189, 481, -361, 357, -276, 269};

fract16 LpcExpd2[FiltOrd+1]=
{4096, -2016, -529, 320, -2253, 935, 1072, -1123, 1327, -458, -466};

fract16 LpcExpd3[FiltOrd+1]=
{4096,-8011,2262,5539,-3037,-3323,2976,595,-181,-1523,879};

segment ("mydata1") fract16 PtrLpcCalcd[FiltOrd+1];
segment ("mydata1") fract16 PtrReflCoeff[FiltOrd+1];