Well, it just loads an mp3 file and plays it when you press the play button.
Once the file is loaded, you can access any position in the file by just clicking on the loading bar. No “advanced” feature like setting up pan or volume. I don’t have much time and I don't think it is very useful, is it?

NOTE: MOD was created for version 2.0.19 of phpBB forum but should work for many previous versions.

Download and unzip the archive.
In your phpBB forum root directory, make a “plugin” subdirectory and put the “jcfplayer.swf” file in it.
Do the following source modifications:

In includes/bbcode.php file:

Find :

// [CODE] and [/CODE] for posting code (HTML, PHP, C etc etc) in your posts.
$text = bbencode_second_pass_code($text, $uid, $bbcode_tpl);

Insert after:

// JCFPluginMarker =============================== Start
$text = str_replace("[mp3:$uid]", '<object type="application/x-shockwave-flash" data="plugin/jcfplayer.swf" width="310" height="30" id="audioplayer1"><param name="movie" value="plugin/jcfplayer.swf" /><param name="FlashVars" value="soundFile=', $text);
$text = str_replace("[/mp3:$uid]", '" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /></object>', $text);
// JCFPluginMarker =============================== End

Find :

function bbencode_first_pass($text, $uid)
{
// pad it with a space so we can distinguish between FALSE and matching the 1st char (index 0).
// This is important; bbencode_quote(), bbencode_list(), and bbencode_code() all depend on it.
$text = " " . $text;

Insert after :

// JCFPluginMarker =============================== Start
// [MP3] and [/MP3]
$text = bbencode_first_pass_pda($text, $uid, '[mp3]', '[/mp3]', '', false, '');
// JCFPluginMarker =============================== End

That’s it! Should be working now.

I have tested it for Internet Explorer and Mozilla Firefox. I don’t know for the other browsers…