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

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

public class Silk_burg_modified_FLP
extends Object

Calculates the reflection coefficients from the input vector Input vector contains nb_subfr sub vectors of length L_sub + D

Author:

Dingxin Xu

Field Summary

(package private) static int	MAX_FRAME_SIZE
(package private) static int	MAX_NB_SUBFR

Constructor Summary

Silk_burg_modified_FLP()

Method Summary

(package private) static float

SKP_Silk_burg_modified_FLP(float[] A, float[] x, int x_offset, int subfr_length, int nb_subfr, float WhiteNoiseFrac, int D) Compute reflection coefficients from input signal.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_FRAME_SIZE

static final int MAX_FRAME_SIZE

See Also:

Constant Field Values

MAX_NB_SUBFR

static final int MAX_NB_SUBFR

See Also:

Constant Field Values

Constructor Detail

Silk_burg_modified_FLP

public Silk_burg_modified_FLP()

Method Detail

SKP_Silk_burg_modified_FLP

static float SKP_Silk_burg_modified_FLP(float[] A,
                                        float[] x,
                                        int x_offset,
                                        int subfr_length,
                                        int nb_subfr,
                                        float WhiteNoiseFrac,
                                        int D)

Compute reflection coefficients from input signal.

Parameters:

A - prediction coefficients (length order).

x - input signal, length: nb_subfr*(D+L_sub).

x_offset - offset of valid data.

subfr_length - input signal subframe length (including D preceeding samples).

nb_subfr - number of subframes stacked in x.

WhiteNoiseFrac - fraction added to zero-lag autocorrelation.

D - order.

Returns: