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Playing Sound in Javascript?

Posted on 1998-09-21
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Last Modified: 2008-02-01
How would I go about playing sound on demand via Javascript?

What I want to do is to have the user click a button (10 different buttons) and for Javascript to fetch that sound from the server much like a graphical image with "document.image[0].src".  Is there any way to do such a thing with Javascript for Netscape 3+ and MS-Explorer?

Thanks!
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Question by:ratboy2
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Michel Plungjan earned 50 total points
ID: 1271177
You have so many different players out there so my suggestion is to simply write the html to a hidden frame:

<HTML>
<HEAD>
<SCRIPT>
ns = navigator.appName.indexOf('Netscape');
function playsound(soundname) {
   var Text=''
   if ns Text += '<EMBED SRC="' + soundname + '">';
   else Text += '<BODY BGSOUND="' + soundname + '">';
   top.hidden.document.write(Text);
</SCRIPT>
</HEAD>
<FRAMESET ROWS="100%,*">
<FRAME NAME="content" SRC="content.html">
<FRAME NAME="hidden" SRC="javascript:' '">
</FRAMSET>
</HTML>

and in your pages:
<FORM>
<INPUT TYPE="BUTTON" VALUE="arrggh" onClick="top.playSound('arrrgh.wav');>
<INPUT TYPE="BUTTON" VALUE="Rap" onClick="top.playSound('rap.mid');>
</FORM>

and so on
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Expert Comment

by:Michel Plungjan
ID: 1271178
PS: You can only preload sounds by loading them into a page - there is not yet a sound.src. You can however do that wiht Java but that is a different kettle of fish (and another forum)

Michel
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Expert Comment

by:martinag
ID: 1271179
I don't know if there is any function call in JS to start a sound, but you could use a hidden frame:

<SCRIPT LANGUAGE="JavaScript">
<!--
function sound(s) {
  parent.hiddenFrame.open();
  parent.hiddenFrame.write('<EMBED SRC="' + s +'" HIDDEN="TRUE" AUTOSTART="TRUE"');
  parent.hiddenFrame.close();
}
// -->
</SCRIPT>
<BUTTON VALUE="Sound 1" onClick="sound('sound1.wav')">

Martin
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Expert Comment

by:martinag
ID: 1271180
Always forget to reload before posting!
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Expert Comment

by:martinag
ID: 1271181
Just noticed:
if ns Text += '<EMBED SRC="' + soundname + '">';
else Text += '<BODY BGSOUND="' + soundname + '">';

IE recognizes the <EMBED> tag, so this will not be neccesary.
Text += '<EMBED SRC="' + soundname + '">';
will be fine.

Martin
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 1271182
IE4 recognises the embed, ie3 does not.

Michel
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 1271183
martinag: The various players out there almost all support javascript control
but it is a pain to figure out which player, if any the user has.

Michel
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