projectpossibility
Class Graph

java.lang.Object
  javax.microedition.lcdui.Displayable
      javax.microedition.lcdui.Canvas
          projectpossibility.Graph

public class Graph
extends javax.microedition.lcdui.Canvas

The Graph class displays microphone input on screen. Also it controls some of the data processing.

Field Summary

Fields inherited from class javax.microedition.lcdui.Canvas

DOWN, FIRE, GAME_A, GAME_B, GAME_C, GAME_D, KEY_NUM0, KEY_NUM1, KEY_NUM2, KEY_NUM3, KEY_NUM4, KEY_NUM5, KEY_NUM6, KEY_NUM7, KEY_NUM8, KEY_NUM9, KEY_POUND, KEY_STAR, LEFT, RIGHT, UP

Constructor Summary

Graph()
Constructor sets width and height based on the display

Method Summary

double	getLoudestFrequency()
DFTpair[]	sortByAmp() Sorts an array of Freq Amp pairs by their amplitudes.
void	update() Refreshes the canvas
void	updateFrequencies() Compute frequencies using a discrete fourier transform.
void	updateStreamData(byte[] array) Updates data based on new sample input
void	warning()

Methods inherited from class javax.microedition.lcdui.Canvas

getGameAction, getKeyCode, getKeyName, hasPointerEvents, hasPointerMotionEvents, hasRepeatEvents, isDoubleBuffered, repaint, repaint, serviceRepaints, setCommandListener, setFullScreenMode

Methods inherited from class javax.microedition.lcdui.Displayable

addCommand, getHeight, getTicker, getTitle, getWidth, isShown, removeCommand, setTicker, setTitle

Methods inherited from class java.lang.Object

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

Constructor Detail

Graph

public Graph()

Constructor sets width and height based on the display

Method Detail

updateStreamData

public void updateStreamData(byte[] array)

Updates data based on new sample input

update

public void update()

Refreshes the canvas

updateFrequencies

public void updateFrequencies()

Compute frequencies using a discrete fourier transform.

getLoudestFrequency

public double getLoudestFrequency()

Returns:

The frequency corresponding to the highest amplitude

sortByAmp

public DFTpair[] sortByAmp()

Sorts an array of Freq Amp pairs by their amplitudes.

warning

public void warning()