Client API. The Codename One framework your app is built on: this runs on the device, not in a backend.

public final class AudioBufferSourceNode

  1. Object
  2. AudioNode
  3. AudioScheduledSourceNode
  4. AudioBufferSourceNode

Plays AudioData, the Web Audio AudioBufferSourceNode. Its output has the data’s channel count. Data at another sample rate is resampled with linear interpolation.

OfflineAudioContext audio = new OfflineAudioContext(2, 44100, 44100);
AudioData clip = audio.createBuffer(1, 44100, 44100); // or decodeAudioData
AudioBufferSourceNode src = audio.createBufferSource();
src.setBuffer(clip);
src.getPlaybackRate().setValue(1.5f);
src.connect(audio.getDestination());
src.start(audio.getCurrentTime() + 0.1);

Methods

public AudioParam getPlaybackRate()The speed factor, 1 by default; negative plays backwards.
public AudioParam getDetune()A detune in cents, combined with the playback rate; a control rate parameter.
public AudioData getBuffer()The audio played.
public void setBuffer(AudioData buffer)Sets the audio to play.
public boolean isLoop()Whether playback loops between getLoopStart() and getLoopEnd().
public void setLoop(boolean loop)Turns looping on or off.
public double getLoopStart()The start of the loop in seconds of the data.
public void setLoopStart(double loopStart)Sets the start of the loop.
public double getLoopEnd()The end of the loop in seconds of the data; 0 (the default), or any value not after the start, means the end of the data.
public void setLoopEnd(double loopEnd)Sets the end of the loop.
public void start(double when, double offset)Starts playing at when from offset seconds into the data.
public void start(double when, double offset, double duration)Starts playing at when from offset seconds into the data, for duration seconds of the data (loops included).

Inherited methods

From AudioScheduledSourceNode

start, start, stop, stop, setOnEnded

From AudioNode

getContext, getNumberOfInputs, getNumberOfOutputs, getChannelCount, setChannelCount, getChannelCountMode, setChannelCountMode, getChannelInterpretation, setChannelInterpretation, connect, connect, connect, connect, disconnect, disconnect, disconnect, disconnect, disconnect

From Object

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

Method details

getPlaybackRate

public AudioParam getPlaybackRate()
The speed factor, 1 by default; negative plays backwards. A control rate parameter.

Returns

the parameter

getDetune

public AudioParam getDetune()
A detune in cents, combined with the playback rate; a control rate parameter.

Returns

the parameter

getBuffer

public AudioData getBuffer()
The audio played.

Returns

the data, or null

setBuffer

public void setBuffer(AudioData buffer)
Sets the audio to play. It can be set once; a source without data plays one channel of silence.

Parameters

buffer AudioData
the data

isLoop

public boolean isLoop()
Whether playback loops between getLoopStart() and getLoopEnd().

Returns

true when looping

setLoop

public void setLoop(boolean loop)
Turns looping on or off.

Parameters

loop boolean
true to loop

getLoopStart

public double getLoopStart()
The start of the loop in seconds of the data.

Returns

seconds

setLoopStart

public void setLoopStart(double loopStart)
Sets the start of the loop.

Parameters

loopStart double
seconds of the data

getLoopEnd

public double getLoopEnd()
The end of the loop in seconds of the data; 0 (the default), or any value not after the start, means the end of the data.

Returns

seconds

setLoopEnd

public void setLoopEnd(double loopEnd)
Sets the end of the loop.

Parameters

loopEnd double
seconds of the data

start

public void start(double when, double offset)
Starts playing at when from offset seconds into the data.

Parameters

when double
context time in seconds
offset double
where in the data to start

start

public void start(double when, double offset, double duration)
Starts playing at when from offset seconds into the data, for duration seconds of the data (loops included).

Parameters

when double
context time in seconds
offset double
where in the data to start, 0 or more
duration double
how much of the data to play, more than 0