org.xiph.speex

Class LtpForcedPitch

java.lang.Object

org.xiph.speex.Ltp

org.xiph.speex.LtpForcedPitch

public class LtpForcedPitch
extends Ltp

Long Term Prediction Quantisation and Unquantisation (Forced Pitch)

Version:

$Revision: 1.2 $

Author:

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

Constructor Summary

Constructors

Constructor and Description
LtpForcedPitch()

Method Summary

Modifier and Type	Method and Description
int	quant(float[] target, float[] sw, int sws, float[] ak, float[] awk1, float[] awk2, float[] exc, int es, int start, int end, float pitch_coef, int p, int nsf, Bits bits, float[] exc2, int e2s, float[] r, int complexity) Long Term Prediction Quantification (Forced Pitch).
int	unquant(float[] exc, int es, int start, float pitch_coef, int nsf, float[] gain_val, Bits bits, int count_lost, int subframe_offset, float last_pitch_gain) Long Term Prediction Unquantification (Forced Pitch).

Methods inherited from class org.xiph.speex.Ltp

inner_prod, open_loop_nbest_pitch

Methods inherited from class java.lang.Object

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

Constructor Detail

LtpForcedPitch

public LtpForcedPitch()

Method Detail

quant

public final int quant(float[] target,
                       float[] sw,
                       int sws,
                       float[] ak,
                       float[] awk1,
                       float[] awk2,
                       float[] exc,
                       int es,
                       int start,
                       int end,
                       float pitch_coef,
                       int p,
                       int nsf,
                       Bits bits,
                       float[] exc2,
                       int e2s,
                       float[] r,
                       int complexity)

Long Term Prediction Quantification (Forced Pitch).

Specified by:

quant in class Ltp

Returns:

pitch

unquant

public final int unquant(float[] exc,
                         int es,
                         int start,
                         float pitch_coef,
                         int nsf,
                         float[] gain_val,
                         Bits bits,
                         int count_lost,
                         int subframe_offset,
                         float last_pitch_gain)

Long Term Prediction Unquantification (Forced Pitch).

Specified by:

unquant in class Ltp

Parameters:

exc - - Excitation

es - - Excitation offset

start - - Smallest pitch value allowed

pitch_coef - - Voicing (pitch) coefficient

nsf - - Number of samples in subframe

gain_val -

bits - - Speex bits buffer.

count_lost -

subframe_offset -

last_pitch_gain -

Returns:

pitch