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

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

public class Silk_LPC_analysis_filter_FLP
extends Object

LPC analysis filter NB! State is kept internally and the filter always starts with zero state first Order output samples are not set

Author:

Jing Dai, Dignxin Xu

Constructor Summary

Silk_LPC_analysis_filter_FLP()

Method Summary

(package private) static void	SKP_Silk_LPC_analysis_filter_FLP(float[] r_LPC, float[] PredCoef, float[] s, int s_offset, int length, int Order)
(package private) static void	SKP_Silk_LPC_analysis_filter10_FLP(float[] r_LPC, float[] PredCoef, float[] s, int s_offset, int length) 10th order LPC analysis filter, does not write first 10 samples
(package private) static void	SKP_Silk_LPC_analysis_filter12_FLP(float[] r_LPC, float[] PredCoef, float[] s, int s_offset, int length) 12th order LPC analysis filter, does not write first 12 samples.
(package private) static void	SKP_Silk_LPC_analysis_filter16_FLP(float[] r_LPC, float[] PredCoef, float[] s, int s_offset, int length) 16th order LPC analysis filter, does not write first 16 samples.
(package private) static void	SKP_Silk_LPC_analysis_filter8_FLP(float[] r_LPC, float[] PredCoef, float[] s, int s_offset, int length) 8th order LPC analysis filter, does not write first 8 samples.

Methods inherited from class java.lang.Object

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

Constructor Detail

Silk_LPC_analysis_filter_FLP

public Silk_LPC_analysis_filter_FLP()

Method Detail

SKP_Silk_LPC_analysis_filter_FLP

static void SKP_Silk_LPC_analysis_filter_FLP(float[] r_LPC,
                                             float[] PredCoef,
                                             float[] s,
                                             int s_offset,
                                             int length,
                                             int Order)

Parameters:

r_LPC - LPC residual signal

PredCoef - LPC coefficients

s - Input signal

s_offset - offset of valid data.

length - Length of input signal

Order - LPC order

SKP_Silk_LPC_analysis_filter16_FLP

static void SKP_Silk_LPC_analysis_filter16_FLP(float[] r_LPC,
                                               float[] PredCoef,
                                               float[] s,
                                               int s_offset,
                                               int length)

16th order LPC analysis filter, does not write first 16 samples.

Parameters:

r_LPC - LPC residual signal

PredCoef - LPC coefficients

s - Input signal

s_offset -

length - Length of input signal

SKP_Silk_LPC_analysis_filter12_FLP

static void SKP_Silk_LPC_analysis_filter12_FLP(float[] r_LPC,
                                               float[] PredCoef,
                                               float[] s,
                                               int s_offset,
                                               int length)

12th order LPC analysis filter, does not write first 12 samples.

Parameters:

r_LPC - LPC residual signal

PredCoef - LPC coefficients

s - Input signal

s_offset - offset of valid data.

length - Length of input signal

SKP_Silk_LPC_analysis_filter10_FLP

static void SKP_Silk_LPC_analysis_filter10_FLP(float[] r_LPC,
                                               float[] PredCoef,
                                               float[] s,
                                               int s_offset,
                                               int length)

10th order LPC analysis filter, does not write first 10 samples

Parameters:

r_LPC - LPC residual signal

PredCoef - LPC coefficients

s - Input signal

s_offset - offset of valid data.

length - Length of input signal

SKP_Silk_LPC_analysis_filter8_FLP

static void SKP_Silk_LPC_analysis_filter8_FLP(float[] r_LPC,
                                              float[] PredCoef,
                                              float[] s,
                                              int s_offset,
                                              int length)

8th order LPC analysis filter, does not write first 8 samples.

Parameters:

r_LPC - LPC residual signal

PredCoef - LPC coefficients

s - Input signal

s_offset - offset of valid data.

length - Length of input signal