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C/C++ Source or Header  |  1994-09-19  |  215b  |  6 lines
  1. extern short        _u2l[];        /* 8-bit u-law to 16-bit PCM */
  2. extern unsigned char    *_l2u;        /* 13-bit PCM to 8-bit u-law */
  3. #define    ulaw2short(X)    (_u2l[(unsigned char) (X)])
  4. #define    short2ulaw(X)    (_l2u[((short)(X)) >> 3])
  5.  
  6.