org.xiph.speex
Class Stereo

java.lang.Object
  org.xiph.speex.Stereo

public class Stereo

extends java.lang.Object

Stereo

Version:

$Revision: 1.5 $

Author:

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

Field Summary

private float	balance
private float	e_ratio Left/right balance info
static float[]	e_ratio_quant
private float	smooth_left Ratio of energies: E(left+right)/[E(left)+E(right)]
private float	smooth_right Smoothed left channel gain
static int	SPEEX_INBAND_STEREO Inband code number for Stereo

Constructor Summary

Stereo()

Method Summary

void	decode(float[] data, int frameSize) Transforms a mono frame into a stereo frame using intensity stereo info.
static void	encode(Bits bits, float[] data, int frameSize) Transforms a stereo frame into a mono frame and stores intensity stereo info in 'bits'.
void	init(Bits bits) Callback handler for intensity stereo info

Methods inherited from class java.lang.Object

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

Field Detail

SPEEX_INBAND_STEREO

public static final int SPEEX_INBAND_STEREO

Inband code number for Stereo

See Also:

Constant Field Values

e_ratio_quant

public static final float[] e_ratio_quant

balance

private float balance

e_ratio

private float e_ratio

Left/right balance info

smooth_left

private float smooth_left

Ratio of energies: E(left+right)/[E(left)+E(right)]

smooth_right

private float smooth_right

Smoothed left channel gain

Constructor Detail

Stereo

public Stereo()

Method Detail

encode

public static void encode(Bits bits,
                          float[] data,
                          int frameSize)

Transforms a stereo frame into a mono frame and stores intensity stereo info in 'bits'.

Parameters:

bits - - Speex bits buffer.

data -

frameSize -

decode

public void decode(float[] data,
                   int frameSize)

Transforms a mono frame into a stereo frame using intensity stereo info.

Parameters:

data - - float array of size 2*frameSize, that contains the mono audio samples in the first half. When the function has completed, the array will contain the interlaced stereo audio samples.

frameSize - - the size of a frame of mono audio samples.

init

public void init(Bits bits)

Callback handler for intensity stereo info

Parameters:

bits - - Speex bits buffer.