From The RadioReference Wiki

LPC-10, or LPC10 is a Linear Prediction Voice Vocoder that operates at 2.4 Kb/s.

The United State Federal Government has standardized many digital voice solutions over HF and VHF/UHF using this Vocoder and standardized as FED-STD-1015.

The ANDVT Family of secure voice terminals uses this vocoder for communications.

  • So called LPC10 because 10 LP coefficients are used
  • Bandwidth: 2.4kbps
  • Samples/frame : 180 samples
  • Bits/frame: 54 bits
  • Frame Size: 22.5ms = 44.44 frames/sec
  • Target stream : 8khz sampling rate, 16bit quantization

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