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

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

public class Silk_MA
extends Object

Variable order MA filter.

Author:

Jing Dai, Dingxin Xu

Constructor Summary

Silk_MA()

Method Summary

(package private) static void	SKP_Silk_LPC_analysis_filter(short[] in, int in_offset, short[] B, short[] S, short[] out, int out_offset, int len, int Order)
(package private) static void	SKP_Silk_MA_Prediction_Q13(short[] in, int in_offset, short[] B, int[] S, short[] out, int out_offset, int len, int order)
(package private) static void	SKP_Silk_MA_Prediction(short[] in, int in_offset, short[] B, int B_offset, int[] S, short[] out, int out_offset, int len, int order) Variable order MA prediction error filter.
(package private) static void	SKP_Silk_MA(short[] in, int in_offset, short[] B, int[] S, short[] out, int out_offset, int len, int order) Variable order MA filter.

Methods inherited from class java.lang.Object

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

Constructor Detail

Silk_MA

public Silk_MA()

Method Detail

SKP_Silk_MA

static void SKP_Silk_MA(short[] in,
                        int in_offset,
                        short[] B,
                        int[] S,
                        short[] out,
                        int out_offset,
                        int len,
                        int order)

Variable order MA filter.

Parameters:

in - input signal.

in_offset - offset of valid data.

B - MA coefficients, Q13 [order+1].

S - state vector [order].

out - output signal.

out_offset - offset of valid data.

len - signal length.

order - filter order.

SKP_Silk_MA_Prediction

static void SKP_Silk_MA_Prediction(short[] in,
                                   int in_offset,
                                   short[] B,
                                   int B_offset,
                                   int[] S,
                                   short[] out,
                                   int out_offset,
                                   int len,
                                   int order)

Variable order MA prediction error filter.

Parameters:

in - Input signal.

in_offset - offset of valid data.

B - MA prediction coefficients, Q12 [order].

B_offset -

S - State vector [order].

out - Output signal.

out_offset - offset of valid data.

len - Signal length.

order - Filter order.

SKP_Silk_MA_Prediction_Q13

static void SKP_Silk_MA_Prediction_Q13(short[] in,
                                       int in_offset,
                                       short[] B,
                                       int[] S,
                                       short[] out,
                                       int out_offset,
                                       int len,
                                       int order)

Parameters:

in - input signal.

in_offset - offset of valid data.

B - MA prediction coefficients, Q13 [order].

S - state vector [order].

out - output signal.

out_offset - offset of valid data.

len - signal length.

order - filter order.

SKP_Silk_LPC_analysis_filter

static void SKP_Silk_LPC_analysis_filter(short[] in,
                                         int in_offset,
                                         short[] B,
                                         short[] S,
                                         short[] out,
                                         int out_offset,
                                         int len,
                                         int Order)

Parameters:

in - Input signal.

in_offset - offset of valid data.

B - MA prediction coefficients, Q12 [order].

S - State vector [order].

out - Output signal.

out_offset - offset of valid data.

len - Signal length.

Order - Filter order.