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Recent content by Embedded c

  1. E

    ITU G.711 codec, for speech waveform

    Hi.. I am trying to design modem to sent speech signal, I used codec G.711 with bit rate 64 Kbps but I am confused do I need to use a compression ratio? And what is the best value for this ratio? Thanks
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    Digital modem design

    Hi.. I am trying to design a digital modem to transmit 3 things,,, image (taken by digital camera) , speech and data.. I have problem with interleaver size,,, could any one help me how to calculate the interleaver size?? I found something that interleaver size>=(bit rate/doppler shift)!! But I'm...
  3. E

    Calculate release and execution jitter

    Could any one give me help and tell me how to Calculate release and execution jitter?
  4. E

    Problem with rand() with keil4

    I did it and I used the stdlib library. The problem now how to Get the random variables? Also I need to know how to calculate Time jitter for rand function recalled each 10 msec this function Has WCET 0.8msec aNd BCET 0.2msec and average case Execution time 0.5msec with lpc2129 ? Plz help Me
  5. E

    Problem with rand() with keil4

    thanks for your replay I got this error (main.c:21: undefined reference to `rand' collect2: ld returned 1 exit status Target not created)
  6. E

    Problem with rand() with keil4

    I really have a problem with rand() function. The problem was stdlib.h the library not working with keil4. I am working for lpc2129 microcontroler the target gave me an error. Plz help me to fix it
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