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java.lang.Objectjava.awt.Component
java.awt.Canvas
visualisation.AudioDocument
visualisation.PowerSpectrum
public class PowerSpectrum
In dieser Klasse wird eine FFT der Audioabtastwerte durchgeführt und die berechneten Werte in den Anzeigepuffer für die Kurvendarstellung (curveValues) geladen. Die Werte werden als Betragsspektrum ausgegeben
Nested Class Summary |
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Nested classes/interfaces inherited from class java.awt.Canvas |
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java.awt.Canvas.AccessibleAWTCanvas |
Nested classes/interfaces inherited from class java.awt.Component |
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java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy |
Field Summary | |
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(package private) double |
f0
Angezeigter Frequenzbereich |
(package private) double |
f1
Angezeigter Frequenzbereich |
private static long |
serialVersionUID
Versionsbezeichner |
(package private) double |
totalPower
Mittelungspegel des Spektrums |
(package private) float[] |
xi
Puffer der imaginären Zahlen zur Berechnung der FFT |
(package private) float[] |
xr
Puffer der reellen Zahlen zur Berechnung der FFT |
Fields inherited from class visualisation.AudioDocument |
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bufferLength, curveSize, curveValues, file, fileLength, headerLength |
Fields inherited from class java.awt.Component |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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PowerSpectrum()
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Method Summary | |
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void |
calculate()
Berechnung der Kurvenform und Durchführung der FFT |
void |
drawCaptions(java.awt.Graphics g)
Zeichnen der Kurvenbeschriftung |
void |
PowerSpektrum()
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(package private) void |
zoom(int coordinate,
int direction)
Nicht implementiert |
Methods inherited from class visualisation.AudioDocument |
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GetFilePos, SetFilePos |
Methods inherited from class java.awt.Canvas |
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addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy, paint, update |
Methods inherited from class java.awt.Component |
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action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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double f0
double f1
private static final long serialVersionUID
double totalPower
float[] xi
float[] xr
Constructor Detail |
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public PowerSpectrum()
Method Detail |
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public void calculate()
calculate
in class AudioDocument
public void drawCaptions(java.awt.Graphics g)
drawCaptions
in class AudioDocument
g
- Referenz auf ein Graphics-Objektpublic void PowerSpektrum()
void zoom(int coordinate, int direction)
zoom
in class AudioDocument
coordinate
- Festlegung welche Achse gezoomt werden soll, 0 für vertikalen 1 für horizontalen Zoomdirection
- Zoomrichtung, 0 für herauszoomen, 1 zum hineinzoomen
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