sound
Class AudioUtils

java.lang.Object
  sound.AudioUtils

public class AudioUtils
extends java.lang.Object

User: lyon Date: Nov 4, 2006 Time: 9:59:21 AM Copyright DocJava, Inc. 2005.

Field Summary

static boolean

DEBUG

Constructor Summary

AudioUtils()

Method Summary

static void	byteArrayToDoubleArray(double[][] doubleArray, byte[] byteArray, int bytesPerSample, int channels)
static int	calculateFrameSize(int nChannels, int nSampleSizeInBits)
static void	checkAudio()
static javax.sound.sampled.AudioInputStream	convertEncoding(javax.sound.sampled.AudioFormat.Encoding targetEncoding, javax.sound.sampled.AudioInputStream sourceStream)
static javax.sound.sampled.AudioInputStream	convertSampleRate(float fSampleRate, javax.sound.sampled.AudioInputStream sourceStream)
static void	doubleArrayToByteArray(byte[] byteArray, double[][] doubleArray, int bytesPerSample, int channels)
static byte	encodeValue(float i)
static byte	encodeValue(int i)
static javax.sound.sampled.AudioFileFormat.Type	findTargetType(java.lang.String strExtension) Trying to get an audio file type for the passed extension.
static javax.sound.sampled.AudioFileFormat.Type[]	getAudioFileTypes()
static javax.sound.sampled.AudioInputStream	getSuitableAudioInputStream(javax.sound.sampled.AudioInputStream sourceAudioInputStream)
static javax.sound.sampled.AudioInputStream	getSuitableAudioInputStream(javax.sound.sampled.Mixer mixer, javax.sound.sampled.AudioInputStream sourceAudioInputStream)
static javax.sound.sampled.AudioInputStream	getSuitableAudioInputStreamImpl(javax.sound.sampled.AudioInputStream sourceAudioInputStream, javax.sound.sampled.AudioFormat targetFormat)
static javax.sound.sampled.AudioFormat	getSuitableTargetFormat(javax.sound.sampled.AudioFormat sourceFormat)
static javax.sound.sampled.AudioFormat	getSuitableTargetFormat(javax.sound.sampled.Mixer mixer, javax.sound.sampled.AudioFormat sourceFormat)
static javax.sound.sampled.AudioFormat	getSuitableTargetFormatImpl(java.util.Iterator possibleTargetFormats, javax.sound.sampled.AudioFormat sourceFormat)
static java.util.Iterator	getSupportedSourceDataLineFormats()
static java.util.Iterator	getSupportedSourceDataLineFormats(javax.sound.sampled.Mixer mixer)
static java.util.Iterator	getSupportedSourceDataLineFormatsImpl(javax.sound.sampled.Line.Info[] aLineInfos)
static int	getValue(byte b) If there is one byte per sample, get the linear value.
static void	main(java.lang.String[] args)
static void	printSupportedTargetFileTypes()

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

public static final boolean DEBUG

See Also:

Constant Field Values

Constructor Detail

AudioUtils

public AudioUtils()

Method Detail

main

public static void main(java.lang.String[] args)

checkAudio

public static void checkAudio()

getAudioFileTypes

public static javax.sound.sampled.AudioFileFormat.Type[] getAudioFileTypes()

printSupportedTargetFileTypes

public static void printSupportedTargetFileTypes()

findTargetType

public static javax.sound.sampled.AudioFileFormat.Type findTargetType(java.lang.String strExtension)

Trying to get an audio file type for the passed extension. This works by examining all available file types. For each type, if the extension this type promisses to handle matches the extension we are trying to find a type for, this type is returned. If no appropriate type is found, null is returned.

getSupportedSourceDataLineFormats

public static java.util.Iterator getSupportedSourceDataLineFormats(javax.sound.sampled.Mixer mixer)

getSupportedSourceDataLineFormats

public static java.util.Iterator getSupportedSourceDataLineFormats()

calculateFrameSize

public static int calculateFrameSize(int nChannels,
                                     int nSampleSizeInBits)

convertEncoding

public static javax.sound.sampled.AudioInputStream convertEncoding(javax.sound.sampled.AudioFormat.Encoding targetEncoding,
                                                                   javax.sound.sampled.AudioInputStream sourceStream)

doubleArrayToByteArray

public static void doubleArrayToByteArray(byte[] byteArray,
                                          double[][] doubleArray,
                                          int bytesPerSample,
                                          int channels)

byteArrayToDoubleArray

public static void byteArrayToDoubleArray(double[][] doubleArray,
                                          byte[] byteArray,
                                          int bytesPerSample,
                                          int channels)

convertSampleRate

public static javax.sound.sampled.AudioInputStream convertSampleRate(float fSampleRate,
                                                                     javax.sound.sampled.AudioInputStream sourceStream)

getSupportedSourceDataLineFormatsImpl

public static java.util.Iterator getSupportedSourceDataLineFormatsImpl(javax.sound.sampled.Line.Info[] aLineInfos)

getSuitableTargetFormat

public static javax.sound.sampled.AudioFormat getSuitableTargetFormat(javax.sound.sampled.AudioFormat sourceFormat)

getSuitableTargetFormat

public static javax.sound.sampled.AudioFormat getSuitableTargetFormat(javax.sound.sampled.Mixer mixer,
                                                                      javax.sound.sampled.AudioFormat sourceFormat)

getSuitableTargetFormatImpl

public static javax.sound.sampled.AudioFormat getSuitableTargetFormatImpl(java.util.Iterator possibleTargetFormats,
                                                                          javax.sound.sampled.AudioFormat sourceFormat)

getSuitableAudioInputStream

public static javax.sound.sampled.AudioInputStream getSuitableAudioInputStream(javax.sound.sampled.AudioInputStream sourceAudioInputStream)

getSuitableAudioInputStream

public static javax.sound.sampled.AudioInputStream getSuitableAudioInputStream(javax.sound.sampled.Mixer mixer,
                                                                               javax.sound.sampled.AudioInputStream sourceAudioInputStream)

getSuitableAudioInputStreamImpl

public static javax.sound.sampled.AudioInputStream getSuitableAudioInputStreamImpl(javax.sound.sampled.AudioInputStream sourceAudioInputStream,
                                                                                   javax.sound.sampled.AudioFormat targetFormat)

getValue

public static int getValue(byte b)

If there is one byte per sample, get the linear value.

Parameters:

b - the twos complement byte

Returns:

the linear value.

encodeValue

public static byte encodeValue(float i)

encodeValue

public static byte encodeValue(int i)