Class NoiseSearch

java.lang.Object

javaforce.codec.speex.CbSearch

javaforce.codec.speex.NoiseSearch

public class NoiseSearch
extends CbSearch

Noise codebook search

Version:

$Revision$

Author:

Jim Lawrence, helloNetwork.com, Marc Gimpel, Wimba S.A. (mgimpel@horizonwimba.com)

Constructor Summary

Constructors

Constructor	Description
NoiseSearch()

Method Summary

Modifier and Type	Method	Description
final void	quant(float[] target, float[] ak, float[] awk1, float[] awk2, int p, int nsf, float[] exc, int es, float[] r, Bits bits, int complexity)	Codebook Search Quantification (Noise).
final void	unquant(float[] exc, int es, int nsf, Bits bits)	Codebook Search Unquantification (Noise).

Methods inherited from class java.lang.Object

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

Constructor Details

NoiseSearch

public NoiseSearch()

Method Details

quant

public final void quant(float[] target,
 float[] ak,
 float[] awk1,
 float[] awk2,
 int p,
 int nsf,
 float[] exc,
 int es,
 float[] r,
 Bits bits,
 int complexity)

Codebook Search Quantification (Noise).

Specified by:

quant in class CbSearch

Parameters:

target - target vector

ak - LPCs for this subframe

awk1 - Weighted LPCs for this subframe

awk2 - Weighted LPCs for this subframe

p - number of LPC coeffs

nsf - number of samples in subframe

exc - excitation array.

es - position in excitation array.

r -

bits - Speex bits buffer.

complexity -

unquant

public final void unquant(float[] exc,
 int es,
 int nsf,
 Bits bits)

Codebook Search Unquantification (Noise).

Specified by:

unquant in class CbSearch

Parameters:

exc - - excitation array.

es - - position in excitation array.

nsf - - number of samples in subframe.

bits - - Speex bits buffer.