No sound when applet is in browser

[Ambergahill]

I have an applet that I have been devloping in NetBeans. It works perfect in there. When I take the applet, and put it in the browser, it does not play sound. Specifically I am trying to play a midi note through the synthesizer. Here is a code snippet below:

synth = MidiSystem.getSynthesizer();
synth.open();
MidiChannel[] channels = synth.getChannels();
channel = channels[nChannelNumber];
channel.noteOn(noteNumber, velocity);

No errors are thrown. Log looks normal. Just wont play a sound.

Thanks in advance!

[Eranga]

Could you please the complete code to see?

[Ambergahill]

Here is the most simplified version of my program. The midi note should play on load. It works in Netbeans, but not my browser. Thanks!

package midiprojectjavacode;

import javax.sound.midi.MidiSystem;
import javax.sound.midi.Synthesizer;
import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiUnavailableException;

public class TestSandbox extends javax.swing.JApplet {

   //For playing notes on synthesizer
   Synthesizer	synth = null;
   public static MidiChannel	channel = null;
   int nChannelNumber = 1;

    /** Initializes the applet TestSandbox */
    public void init() {
        try {
            java.awt.EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    initComponents();
                    playMidiNoise();
                }
            });
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void playMidiNoise()
    {
        try
        {
            synth = MidiSystem.getSynthesizer();
            synth.open();
            MidiChannel[] channels = synth.getChannels();
            channel = channels[nChannelNumber];
            channel.noteOn(60, 50);
        }
        catch (MidiUnavailableException e)
        {
            System.out.println("Error getting/opening Sythesizer: + e");
        }

    }

    /** This method is called from within the init() method to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
        );
    }// </editor-fold>


    // Variables declaration - do not modify
    // End of variables declaration

}

[DarrylBurke]

Do you get any exceptions shown in the Java console?

db

[Ambergahill]

Nothing in the Java console.

[Eranga]

Seems the code has nothing wrong. Are you sure that the applet code has no mistake?