Play audio using J2ME

Question

What is the best way to play audio using J2ME Media libary? For example, should you use MMAPI or use the Midlet platformRequest (String s) method?

Answer 1

The following code should work on 90-95% of phones supporting JSR-135. Ordering all the calls to various methods is key to making it portable. This sounds local to your JAR. Any streaming sound would be another problem in general :)

// loads the InputStream for the sound
InputStream inputStream = this.getClass().getResourceAsStream( musicFile );

// create the standard Player
musicPlayer = Manager.createPlayer( inputStream, musicEncoding );
musicPlayer.prefetch();

// add player listener to access sound events
musicPlayer.addPlayerListener( this );

if( loopMusic )
{    
    // use the loop count method for infinite looping
    musicPlayer.setLoopCount( -1 );
}

// The set occurs twice to prevent sound spikes at the very 
// beginning of the sound.
VolumeControl volumeControl = 
   (VolumeControl) musicPlayer.getControl( "VolumeControl" );
volumeControl.setLevel( curVolume );

// finally start the piece of music
musicPlayer.start();

// set the volume once more
volumeControl = (VolumeControl) musicPlayer.getControl( "VolumeControl" );
volumeControl.setLevel( curVolume );

// finally, delete the input stream to save on resources
inputStream.close();
inputStream = null;

Answer 2

At best, what do you mean? Top quality? Best user experience? Do most of the standards comply?

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Answer 3

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Answer 4

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