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  1. JDK
  2. JDK-4895914

noteOn() produces sound that continues forever

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    • Icon: Bug Bug
    • Resolution: Won't Fix
    • Icon: P4 P4
    • None
    • 1.4.2
    • client-libs



      Name: rmT116609 Date: 07/24/2003


      FULL PRODUCT VERSION :
      java version "1.3.1_03"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
      Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)

      java version "1.4.2"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
      Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)


      FULL OPERATING SYSTEM VERSION :
      Microsoft Windows 2000 [Version 5.00.2195]

      A DESCRIPTION OF THE PROBLEM :
      If I select guitar instrument, then noteOn() method produces
      quite strange sound. At the beginning it sounds normally,
      but when sound fineshes then it appears again after about 1
      second and continues forever with permanent loudness.

      If I select piano instrument, then I have no such effect.

      Could you tell me, please, how to avoid this problem when
      I'm using guitar instrument?


      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1.Compile example code
      2.Run it
      3.Hear the sound

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      I expect no more guitar sound when sound volume has
      decreased to the zero level (like piano sound behaves).
      Actually I see, when guitar sound volume decreases to zero
      level, then sound appears againg (after about 1 second) and
      continues forever with permanent loudness.

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      No errors

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      import javax.sound.midi.*;

      public class TestNoteOn {
          
          static Synthesizer synth;
          static MidiChannel channel;
          
          public static void main(String args[]) throws Exception {
             synth = MidiSystem.getSynthesizer();
             synth.open();
             channel = synth.getChannels()[0];
             
             //Select guitar instrument - number 24
             channel.programChange(24);

             //Select piano instrument - number 0
             //channel.programChange(0);

             //Play the note
             channel.noteOn(60,64);
          }
      }

      ---------- END SOURCE ----------

      CUSTOMER WORKAROUND :
      noteOff()
      (Incident Review ID: 178508)
      ======================================================================

            amenkov Alex Menkov
            rmandalasunw Ranjith Mandala (Inactive)
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              Created:
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