Class SplitShapeSearch

java.lang.Object

javaforce.codec.speex.CbSearch

javaforce.codec.speex.SplitShapeSearch

public class SplitShapeSearch
extends CbSearch

Split shape codebook search

Version:

$Revision$

Author:

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

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_COMPLEXITY

Constructor Summary

Constructors

Constructor	Description
SplitShapeSearch(int subframesize, int subvect_size, int nb_subvect, int[] shape_cb, int shape_bits, int have_sign)	Constructor

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 (Split Shape).
final void	unquant(float[] exc, int es, int nsf, Bits bits)	Codebook Search Unquantification (Split Shape).

Methods inherited from class java.lang.Object

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

Field Details

MAX_COMPLEXITY

public static final int MAX_COMPLEXITY

See Also:

• Constant Field Values

Constructor Details

SplitShapeSearch

public SplitShapeSearch(int subframesize,
 int subvect_size,
 int nb_subvect,
 int[] shape_cb,
 int shape_bits,
 int have_sign)

Constructor

Parameters:

subframesize -

subvect_size -

nb_subvect -

shape_cb -

shape_bits -

have_sign -

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 (Split Shape).

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 (Split Shape).

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.