Embedding Sound with Flash, Part II: Playing Variations: Smoothing Track Transitions - Doc JavaScript | WebReference

Embedding Sound with Flash, Part II: Playing Variations: Smoothing Track Transitions - Doc JavaScript


Embedding Sound with Flash, Part II: Playing Variations

Smoothing Track Transitions

The sound effect of event sync is noticeable compared to the sound effect you get when you stop each instance before starting a new one. The following A-E links demonstrate the event sync. Notice that the instances overlap each other. Move the cursor quickly across to hear the overlapping effect. It smoothes transitions between different buttons:

A B C D E

We don't have an SWF file with start sync. To simulate start sync, we can add the onmouseout event handler to each link and thus stop the sound when the mouse goes off the link. This is similar to what happens with start sync. When you re-trigger a new instance, the current instance stops. Our simulation does these events in a reverse order. We stop the current instance before we re-trigger a new one, but the effect is similar. We took the A-E links above and added an onmouseout event to each link to stop the sound when the mouse goes off the link. Notice that the sound is not as smooth as before. Move the cursor quickly across the a-e links. Notice that the sound is not as smooth as before:

a b c d e

<HTML>
<HEAD>
  <SCRIPT SRC="flashsound.js"></SCRIPT>
  <SCRIPT>
    var mySoundObj = new FlashSound();
  </SCRIPT>
</HEAD>
<BODY>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')">A</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')">B</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')">C</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')">D</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')">E</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')"
  onmouseout="mySoundObj.TGotoAndPlay
  ('/ringsound','stop')">a</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')"
  onmouseout="mySoundObj.TGotoAndPlay
  ('/ringsound','stop')">b</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')"
  onmouseout="mySoundObj.TGotoAndPlay
  ('/ringsound','stop')">c</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')"
  onmouseout="mySoundObj.TGotoAndPlay
  ('/ringsound','stop')">d</A>
<A HREF="javascript://"
  onmouseover="mySoundObj.TGotoAndPlay
  ('/ringsound','start')"
  onmouseout="mySoundObj.TGotoAndPlay
  ('/ringsound','stop')">e</A>
<SCRIPT>
  mySoundObj.embedSWF("ringover.swf");
</SCRIPT>
</BODY>
</HTML>

Next: How to avoid amplification of looping tracks

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Created: April 23, 2001
Revised: April 23, 2001

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