[Koha-devel] Koha Sound Events

[Kyle Hall]

Have you thought about using the HTML 5 <audio> tag?

http://html5doctor.com/native-audio-in-the-browser/

Kyle

http://www.kylehall.info
Information Technology
Crawford County Federated Library System ( http://www.ccfls.org )




On Thu, Feb 4, 2010 at 10:50 AM, Darrell Ulm <darrellulm at smfpl.org> wrote:
> Hello,
>
> Working on putting sound events into Koha 3.2 but it is a bit of a pickle.
>
> While I have it working using <embed (embed is the problem, works to a point,
> but please read below) ... <embed is not the solution for playing the sound
>
> My question is *what is?*. Currently the two best candidates are playing with a
> Java Applet (works very well and loads concurrently so no delay) or Flash, which
> I have not tested.
>
> Basically to get decent sound, we are going to need a plug-in, because web
> browsers just don't cut it for playing sound in a fast environment.
>
> <!-- TMPL_IF NAME="soundon" -->
> <script type="text/javascript" language="javascript">
> if ( get_cookie( "kohastaffsound" ) == "yes" )
>        {
>        document.write('Sounding...');
>        document.write('<embed src="/intranet-tmpl/prog/sound/beep.wav" hidden
> autostart="true" loop="false" />');
>        }
> </script>
> <!-- /TMPL_IF -->
>
> in Circulation.tmpl
>
> along with a cookie (kohastaffsound) controlled audio on and off (note the
> syspref "soundon" also) which is set by a toggle button in header.inc (may not
> be the best place)
>
> <script type="text/javascript" language="javascript">
> if ( get_cookie( "kohastaffsound" ) == "yes" )
>        {
>        document.write('<img src="/intranet-tmpl/prog/img/famfamfam/silk/sound.png"
> onClick=\'delete_cookie ( "kohastaffsound" ); window.location.reload();\' >');
>        }
> else
>        {
>        document.write('<img
> src="/intranet-tmpl/prog/img/famfamfam/silk/sound_mute.png"
> onClick=\'set_cookie( "kohastaffsound", "yes", 2020, 01, 01 );
> window.location.reload();\' >');
>        }
> </script>
>
> That is about it, which is fine, except the silly <EMBED is weird and flashes
> the screen as well as slows everything down. I think if I aim for a very small
> audio file this could be improved, however, there is a delay with the <embed.
>
> With <Embed we have
>
> * Firefox 3.6 there is a delay and an entire screen refresh, but works the best.
>
> * Chrome 4 there is a delay, then the sound plays late, and it even messes up
> the formatting
>
> *  IE8 - worked great- loads quick - , but not so with Firefox which is a must
>
> * Opera - Worked the best, very quick load on Circ, but other things did not,
> unrelated the sound changes
>
> It seems one way to get around this is to NOT use Embed, and instead use Java
> with a class (open source of course) to handle playing a sound on demand.
>
> Has anyone else thought about this or experimented. The issue is mainly with the
> browsers and the lack of support for sound. Using straight javascript to play
> the sound works worse than embed across the browsers, which is probably why
> Jquery doesn't have a good sound plug-in.
>
> I think the reason sound is important, is so at the *end* of a transaction
> (check-in / out) there is a beep, to speed up these tasks. Also, when there is
> an exception on a book (missing barcode) there should be an audible warning.
> These are often missed, because Koha does not have sound cues, and other ILS
> systems do.
>
> What do you all think?
>
> Darrell Ulm
>
>
>
>
>
> _______________________________________________
> Koha-devel mailing list
> Koha-devel at nongnu.org
> http://lists.nongnu.org/mailman/listinfo/koha-devel
>


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