org.farng.mp3.id3
Class FrameBodyEQUA

java.lang.Object
  org.farng.mp3.AbstractMP3FileItem
      org.farng.mp3.AbstractMP3FragmentBody
          org.farng.mp3.id3.AbstractID3v2FrameBody
              org.farng.mp3.id3.FrameBodyEQUA

public class FrameBodyEQUA

extends AbstractID3v2FrameBody

4.13.Equalisation

This is another subjective, alignment frame. It allows the user to predefine an equalisation curve within the audio file. There may only be one "EQUA" frame in each tag.

<Header of 'Equalisation', ID: "EQUA">
Adjustment bits	$xx

The 'adjustment bits' field defines the number of bits used for representation of the adjustment. This is normally $10 (16 bits) for MPEG 2 layer I, II and III and MPEG 2.5. This value may not be $00.

This is followed by 2 bytes + ('adjustment bits' rounded up to the nearest byte) for every equalisation band in the following format, giving a frequency range of 0 - 32767Hz:

Increment/decrement	%x (MSB of the Frequency)
Frequency	(lower 15 bits)
Adjustment	$xx (xx ...)

The increment/decrement bit is 1 for increment and 0 for decrement. The equalisation bands should be ordered increasingly with reference to frequency. All frequencies don't have to be declared. The equalisation curve in the reading software should be interpolated between the values in this frame. Three equal adjustments for three subsequent frequencies. A frequency should only be described once in the frame.

Version:

$Revision: 1.3 $

Author:

Eric Farng

Constructor Summary

FrameBodyEQUA()
Creates a new FrameBodyEQUA object.

FrameBodyEQUA(FrameBodyEQUA body)
Creates a new FrameBodyEQUA object.

Method Summary

java.lang.String	getIdentifier() ID string that usually corresponds to the class name, but can be displayed to the user.
protected void	setupObjectList() Create the order of MP3Object objects that this body expects.

Methods inherited from class org.farng.mp3.id3.AbstractID3v2FrameBody

equals, readHeader, writeHeader

Methods inherited from class org.farng.mp3.AbstractMP3FragmentBody

appendToObjectList, getBriefDescription, getDescription, getObject, getObjectListIterator, getSize, has6ByteHeader, isSubsetOf, iterator, read, setObject, toString, write

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameBodyEQUA

public FrameBodyEQUA()

Creates a new FrameBodyEQUA object.

FrameBodyEQUA

public FrameBodyEQUA(FrameBodyEQUA body)

Creates a new FrameBodyEQUA object.

Method Detail

setupObjectList

protected void setupObjectList()

Description copied from class: AbstractMP3FragmentBody

Create the order of MP3Object objects that this body expects. This method needs to be overwritten.

Specified by:

setupObjectList in class AbstractMP3FragmentBody

getIdentifier

public java.lang.String getIdentifier()

Description copied from class: AbstractMP3FileItem

ID string that usually corresponds to the class name, but can be displayed to the user. It is not indended to identify each individual instance.

Specified by:

getIdentifier in class AbstractMP3FileItem

Returns:

ID string