Package ipsk.audio.dsp

Class LevelMeasureAudioInputStream

java.lang.Object

java.io.InputStream

javax.sound.sampled.AudioInputStream

ipsk.audio.dsp.LevelMeasureAudioInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class LevelMeasureAudioInputStream
extends javax.sound.sampled.AudioInputStream

Measures the level of the the audio stream and holds the peak.

Author:

K.Jaensch, klausj@phonetik.uni-muenchen.de

Field Summary

Fields inherited from class javax.sound.sampled.AudioInputStream

format, frameLength, framePos

Constructor Summary

Constructors

Constructor	Description
LevelMeasureAudioInputStream(javax.sound.sampled.AudioInputStream srcAudioInputStream)	Create a measuring audio stream with the given source stream.
LevelMeasureAudioInputStream(javax.sound.sampled.AudioInputStream srcAudioInputStream, LevelInfo[] levelInfos)	Create a measuring audio stream with the given source stream.

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
javax.sound.sampled.AudioFormat	getFormat()
long	getFrameLength()
LevelInfo[]	getLevelInfos()	Get level infos of all channels.
float[]	getPeakLevelHold()	Get current level peaks.
void	mark(int arg0)
boolean	markSupported()
int	read()
int	read(byte[] buf)
int	read(byte[] buf, int trgOffset, int len)
void	reset()
void	resetPeakHold()	Reset the peak hold.
long	skip(long arg0)
java.lang.String	toString()

Methods inherited from class java.io.InputStream

readAllBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

LevelMeasureAudioInputStream

public LevelMeasureAudioInputStream(javax.sound.sampled.AudioInputStream srcAudioInputStream)
                             throws AudioFormatNotSupportedException

Create a measuring audio stream with the given source stream.

Parameters:

srcAudioInputStream - source audio stream (the stream to measure)

Throws:

AudioFormatNotSupportedException

LevelMeasureAudioInputStream

public LevelMeasureAudioInputStream(javax.sound.sampled.AudioInputStream srcAudioInputStream,
                                    LevelInfo[] levelInfos)
                             throws AudioFormatNotSupportedException

Create a measuring audio stream with the given source stream.

Parameters:

srcAudioInputStream - source audio stream (the stream to measure)

Throws:

AudioFormatNotSupportedException

Method Detail

available

public int available()
              throws java.io.IOException

Overrides:

available in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

getFormat

public javax.sound.sampled.AudioFormat getFormat()

Overrides:

getFormat in class javax.sound.sampled.AudioInputStream

getFrameLength

public long getFrameLength()

Overrides:

getFrameLength in class javax.sound.sampled.AudioInputStream

mark

public void mark(int arg0)

Overrides:

mark in class javax.sound.sampled.AudioInputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class javax.sound.sampled.AudioInputStream

read

public int read()
         throws java.io.IOException

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

read

public int read(byte[] buf)
         throws java.io.IOException

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

read

public int read(byte[] buf,
                int trgOffset,
                int len)
         throws java.io.IOException

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

skip

public long skip(long arg0)
          throws java.io.IOException

Overrides:

skip in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getLevelInfos

public LevelInfo[] getLevelInfos()

Get level infos of all channels.

Returns:

array of level infos

resetPeakHold

public void resetPeakHold()

Reset the peak hold.

getPeakLevelHold

public float[] getPeakLevelHold()

Get current level peaks.

Returns:

array with normalized peak for each channel