org.xiph.speex
Class CbSearch

java.lang.Object
  org.xiph.speex.CbSearch

Direct Known Subclasses:

NoiseSearch, SplitShapeSearch

public abstract class CbSearch

extends java.lang.Object

Abstract class that is the base for the various Codebook search methods.

Version:

$Revision: 1.3 $

Author:

Jim Lawrence, helloNetwork.com, Marc Gimpel, Wimba S.A. (marc@wimba.com)

Constructor Summary

CbSearch()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CbSearch

public CbSearch()

Method Detail

quant

public abstract 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.

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

Codebook Search Unquantification.

Parameters:

exc - - excitation array.

es - - position in excitation array.

nsf - - number of samples in subframe.

bits - - Speex bits buffer.