com.ibm.watson.developer_cloud.android.library.audio

Class MicrophoneInputStream

java.lang.Object

java.io.InputStream

com.ibm.watson.developer_cloud.android.library.audio.MicrophoneInputStream

All Implemented Interfaces:

AudioConsumer, java.io.Closeable, java.lang.AutoCloseable

public final class MicrophoneInputStream
extends java.io.InputStream
implements AudioConsumer

Captures raw audio data from the microphone and exposes it via an InputStream. Make sure close() gets called in order to free its resources appropriately.

Field Summary

Fields

Modifier and Type	Field and Description
ContentType	CONTENT_TYPE The content type.

Constructor Summary

Constructors

Constructor and Description
MicrophoneInputStream(boolean opusEncoded) Instantiates a new microphone input stream.

Method Summary

Modifier and Type	Method and Description
void	close() Close.
void	consume(byte[] data) Consume.
void	consume(byte[] data, double amplitude, double volume) Consume.
java.lang.String	getContentType() Get the audio format from the MicrophoneInputStream.
int	read() Read.
int	read(byte[] buffer) Read.
int	read(byte[] buffer, int offset, int length) Read.
void	setOnAmplitudeListener(AmplitudeListener listener) Receive amplitude (and volume) data per sample from the MicrophoneInputStream.

Methods inherited from class java.io.InputStream

available, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

CONTENT_TYPE

public final ContentType CONTENT_TYPE

The content type.

Constructor Detail

MicrophoneInputStream

public MicrophoneInputStream(boolean opusEncoded)

Instantiates a new microphone input stream.

Parameters:

opusEncoded - the opus encoded

Method Detail

read

public int read()
         throws java.io.IOException

Read.

Specified by:

read in class java.io.InputStream

Returns:

the int

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

read

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

Read.

Overrides:

read in class java.io.InputStream

Parameters:

buffer - the buffer

Returns:

the int

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

read

public int read(byte[] buffer,
                int offset,
                int length)
         throws java.io.IOException

Read.

Overrides:

read in class java.io.InputStream

Parameters:

buffer - the buffer

offset - the offset

length - the length

Returns:

the int

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

close

public void close()
           throws java.io.IOException

Close.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

consume

public void consume(byte[] data,
                    double amplitude,
                    double volume)

Consume.

Specified by:

consume in interface AudioConsumer

Parameters:

data - the data

amplitude - the amplitude

volume - the volume

consume

public void consume(byte[] data)

Consume.

Specified by:

consume in interface AudioConsumer

Parameters:

data - the data

setOnAmplitudeListener

public void setOnAmplitudeListener(AmplitudeListener listener)

Receive amplitude (and volume) data per sample from the MicrophoneInputStream.

Parameters:

listener - Notified per sample with amplitude and volume data.

getContentType

public java.lang.String getContentType()

Get the audio format from the MicrophoneInputStream.

Returns:

audio/l16;rate=16000