edu.msoe.taylor.audio

Class SimpleAudio

java.lang.Object

edu.msoe.taylor.audio.SimpleAudio

public class SimpleAudio
extends java.lang.Object

A facade class that simplifies interaction with the Java sound library. The class provides functionality for creating and playing sounds and saving the sounds as .wav files.

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	BIGENDIAN BIGENDIAN byte order format for audio samples.
private static int	BITS_PER_SAMPLE BITS_PER_SAMPLE number of bits used to represent an audio sample.
private static int	BUFFER_SIZE BUFFER_SIZE size of the buffer used by SimpleAudio objects.
private static int	CHANNELS CHANNELS number of audio channels.
private static int	DEFAULT_SAMPLE_RATE BUFFER_SIZE size of the buffer used by SimpleAudio objects.
private javax.sound.sampled.AudioFormat	format format audio format information.
private static boolean	SIGNED_BYTES SIGNED_BYTES are the audio samples signed.

Constructor Summary

Constructors

Constructor and Description
SimpleAudio() Default constructor which uses the default sample rate.
SimpleAudio(float sampleRate) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	play(java.util.List<java.lang.Float> samples) Send audio samples to the the speakers.
void	saveWAV(java.io.File file, java.util.List<java.lang.Float> samples) Save audio samples to a file using the .wav format.
private javax.sound.sampled.AudioInputStream	toAudioInputStream(java.util.List<java.lang.Float> samples) Convert the audio samples into an audio input stream.
private byte[]	toBytes(java.util.List<java.lang.Float> samples) Convert the audio samples into a byte array that can be used to populate an AudioInputStream.

Methods inherited from class java.lang.Object

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

Field Detail

BITS_PER_SAMPLE

private static final int BITS_PER_SAMPLE

BITS_PER_SAMPLE number of bits used to represent an audio sample.

See Also:

Constant Field Values

CHANNELS

private static final int CHANNELS

CHANNELS number of audio channels.

See Also:

Constant Field Values

SIGNED_BYTES

private static final boolean SIGNED_BYTES

SIGNED_BYTES are the audio samples signed.

See Also:

Constant Field Values

BIGENDIAN

private static final boolean BIGENDIAN

BIGENDIAN byte order format for audio samples.

See Also:

Constant Field Values

BUFFER_SIZE

private static final int BUFFER_SIZE

BUFFER_SIZE size of the buffer used by SimpleAudio objects.

See Also:

Constant Field Values

DEFAULT_SAMPLE_RATE

private static final int DEFAULT_SAMPLE_RATE

BUFFER_SIZE size of the buffer used by SimpleAudio objects.

See Also:

Constant Field Values

format

private javax.sound.sampled.AudioFormat format

format audio format information.

Constructor Detail

SimpleAudio

public SimpleAudio(float sampleRate)

Constructor

Parameters:

sampleRate - number of audio samples per second

SimpleAudio

public SimpleAudio()

Default constructor which uses the default sample rate.

Method Detail

play

public void play(java.util.List<java.lang.Float> samples)
          throws javax.sound.sampled.LineUnavailableException,
                 java.io.IOException

Send audio samples to the the speakers.

Parameters:

samples - Audio samples to be sent to the speakers.

Throws:

javax.sound.sampled.LineUnavailableException

java.io.IOException

saveWAV

public void saveWAV(java.io.File file,
           java.util.List<java.lang.Float> samples)
             throws java.io.IOException

Save audio samples to a file using the .wav format.

Parameters:

file - File to receive the audio samples.

samples - Audio samples to be written to the file.

Throws:

java.io.IOException

toAudioInputStream

private javax.sound.sampled.AudioInputStream toAudioInputStream(java.util.List<java.lang.Float> samples)

Convert the audio samples into an audio input stream.

Parameters:

samples - Audio samples to be used.

Returns:

An audio input stream containing the audio samples.

toBytes

private byte[] toBytes(java.util.List<java.lang.Float> samples)

Convert the audio samples into a byte array that can be used to populate an AudioInputStream.

Parameters:

samples - Audio samples to be used.

Returns:

A byte array representation of the audio samples.