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GSM Speech Coding
written 8.8 years ago by gravatar for teamques10 teamques10 ★ 69k •   modified 5.7 years ago
mobile communication
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written 8.8 years ago by gravatar for teamques10 teamques10 ★ 69k

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A. Speech coding:

  • GSM speech coder is RELP (Residually Excited Predictive Coder), which is enhanced by including a Long Term Predictor (LTP).
  • The coder provides 260 bits for 20ms blocks of speech, which yields a bit rate of 13kbps.
  • GSM system operates in Discontinuous Transmission mode (DTX) by incorporating a …

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