net.java.sip.communicator.impl.neomedia.codec.audio.silk
Class Silk_ana_filt_bank_1

java.lang.Object
  net.java.sip.communicator.impl.neomedia.codec.audio.silk.Silk_ana_filt_bank_1

public class Silk_ana_filt_bank_1
extends Object

Split signal into two decimated bands using first-order allpass filters.

Author:

Jing Dai, Dingxin Xu

Field Summary

(package private) static short[]	A_fb1_20
(package private) static short[]	A_fb1_21

Constructor Summary

Silk_ana_filt_bank_1()

Method Summary

(package private) static void

SKP_Silk_ana_filt_bank_1(short[] in, int in_offset, int[] S, int S_offset, short[] outL, int outL_offset, short[] outH, int outH_offset, int[] scratch, int N) Split signal into two decimated bands using first-order allpass filters.

Methods inherited from class java.lang.Object

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

Field Detail

A_fb1_20

static short[] A_fb1_20

A_fb1_21

static short[] A_fb1_21

Constructor Detail

Silk_ana_filt_bank_1

public Silk_ana_filt_bank_1()

Method Detail

SKP_Silk_ana_filt_bank_1

static void SKP_Silk_ana_filt_bank_1(short[] in,
                                     int in_offset,
                                     int[] S,
                                     int S_offset,
                                     short[] outL,
                                     int outL_offset,
                                     short[] outH,
                                     int outH_offset,
                                     int[] scratch,
                                     int N)

Split signal into two decimated bands using first-order allpass filters.

Parameters:

in - Input signal [N].

in_offset - offset of valid data.

S - State vector [2].

S_offset - offset of valid data.

outL - Low band [N/2].

outL_offset - offset of valid data.

outH - High band [N/2].

outH_offset - offset of valid data.

scratch - Scratch memory [3*N/2].

N - Number of input samples.