pav::lib::visualizer::Spectrum Class Reference

List of all members.

Public Member Functions
	Spectrum ()
void	process () throws PAVException
void	setCutoffFrequencies (int min, int max)
void	noCutoffFrequencies ()
void	setMode (int mode)
void	rememberMax (boolean remember)
String	toString ()
void	dispose ()
Static Public Attributes
static final int	MODE_BINS = 1
static final int	MODE_DOTS = 2
static final int	MODE_SHAPE = 3

---

Detailed Description

Draws the logarithm of the frequency spectrum of the currently playing audio data.

Author:

christopher

---

Constructor & Destructor Documentation

pav::lib::visualizer::Spectrum::Spectrum

(

)

[inline]

Ctor.

---

Member Function Documentation

void pav::lib::visualizer::Spectrum::dispose

(

)

[inline]

Disposes this visualizer, releasing all resources that were used exclusively by this visualiter. Subsequent calls to any methods of the visualizer might cause exceptions.

Implements pav::lib::visualizer::Visualizer.

void pav::lib::visualizer::Spectrum::noCutoffFrequencies

(

)

[inline]

Tells the visualizer not to use cutoff frequencies. See cutoffFrequencies().

void pav::lib::visualizer::Spectrum::process

(

)

throws PAVException [inline]

Draws to the PApplet specified by drawTo.

Exceptions:

PAVException

If an error occures while drawing

Implements pav::lib::visualizer::Visualizer.

void pav::lib::visualizer::Spectrum::rememberMax

(

boolean

remember

)

[inline]

Before drawing the maximum intensity of the frequency data is calculated so that the output can be scaled properly. This method sets whether the maximum will be saved and reused.

Parameters:

remember

Whether to remember the max intensity

void pav::lib::visualizer::Spectrum::setCutoffFrequencies	(	int	min,
		int	max
	)			[inline]

Sets the cutoff frequencies. This will cut all frequency bands with lower frequencies, the first used band will be the one with the frequency min in it. The same counts for max. This means that the cutoff is not very precise.

Parameters:

	min	The minimum frequency. Must be >= 0
	max	The maximum frequency. Must be <= 22050 and > min

void pav::lib::visualizer::Spectrum::setMode

(

int

mode

)

[inline]

Sets the visualization mode. Must be a valid mode according to the MODE_ constants of this class.

Parameters:

mode

String pav::lib::visualizer::Spectrum::toString

(

)

[inline]

Returns a short string representation of this visualizer.

Returns:

visualizer info

Implements pav::lib::visualizer::Visualizer.

---

Member Data Documentation

final int pav::lib::visualizer::Spectrum::MODE_BINS = 1 [static]

Draw lines.

final int pav::lib::visualizer::Spectrum::MODE_DOTS = 2 [static]

Draw dots.

final int pav::lib::visualizer::Spectrum::MODE_SHAPE = 3 [static]

Draw a shape.

---

The documentation for this class was generated from the following file:

• src/pav/lib/visualizer/Spectrum.java