net.java.sip.communicator.impl.neomedia.codec.audio.silk
Class Silk_LPC_synthesis_filter

java.lang.Object
  net.java.sip.communicator.impl.neomedia.codec.audio.silk.Silk_LPC_synthesis_filter

public class Silk_LPC_synthesis_filter
extends Object

even order AR filter. Coefficients are in Q12

Author:

Jing Dai

Constructor Summary

Silk_LPC_synthesis_filter()

Method Summary

(package private) static void

SKP_Silk_LPC_synthesis_filter(short[] in, short[] A_Q12, int Gain_Q26, int[] S, short[] out, int len, int Order) even order AR filter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Silk_LPC_synthesis_filter

public Silk_LPC_synthesis_filter()

Method Detail

SKP_Silk_LPC_synthesis_filter

static void SKP_Silk_LPC_synthesis_filter(short[] in,
                                          short[] A_Q12,
                                          int Gain_Q26,
                                          int[] S,
                                          short[] out,
                                          int len,
                                          int Order)

even order AR filter.

Parameters:

in - excitation signal

A_Q12 - AR coefficients [Order], between -8_Q0 and 8_Q0

Gain_Q26 - gain

S - state vector [Order]

out - output signal

len - signal length

Order - filter order, must be even