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LCWO Discussion Forum [Atom LCWO Forum Feed]

This is a simple discussion forum for LCWO users. Feel free to use it for any kind of discussion related to this website.

Thread: Click and garbling of characters

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Posted: 2008-11-03 17:41
I get a loud click and garbling of the audio feed for about 2-3 seconds worth when running at, say, 25/25wpm. It is enough to cause the loss of at least half of the first code group, for example. This means plain text and callsign runs are nearly alway broken and my score drops below 95%, right "out of the box". I know it's probably here. I'm running a Toughbook CF-Y5, XPPro and the media player is QuickTime. It is at the start of each audio "section", so callsign training is almost impossible, because each callsign is a different "sound bite". Paul.

Posted: 2008-11-03 20:45
Hi Paul,

the sound should be handled by the Flash plugin of your browser, and so far I have not heard any complaints of similar effects. I wonder if the same effect can be observed if you play the file again, after it completed playing for the first time?

73, Fabian

Posted: 2008-11-05 18:21
Just upgraded to Flash Player version 10 and got exactly this problem.

I'm working on it.

73, Fabian

Posted: 2008-11-05 19:12

Seems to be a known problem in the Flash Player 10. I will try to play with the settings of the generated MP3 and hope to fix it that way. Otherwise as a quick workaround I'll have to add some silence at the start of each file.

This apparently only affects Flash Player 10. With Version 9 it plays just fine here.

Posted: 2008-11-05 20:25
Fabian - continuing from our first exchange on qrz.com:

My Gateway box hadn't been updated since Flash 8. With Firefox, I got a scratchy first character on startup of any player. With IE7, I got no sound at all.

After I installed Flash 9, the call sign player worked well Firefox.

With IE7 & Flash 9, the call sign player prompted to "Install the Adobe Flash Player update and enable Java script."

After I installed Flash 10, IE7 gave me no sound at all at the call sign player, and Firefox reverted to the clicky/scratchy start up.

Back to Flash 9 now & Firefox again plays well with your training site. Good enough for me, and I simply do not care to mess with IE7 any more.
73, Gary K9ZMD/6

Posted: 2008-11-06 20:14
Added some silence to the start of each file now, and it sounds good again with Flash Player 10 (and all others of course).

Not the solution I hoped for, but as long as this problem exists with Flash 10, there is no other choice it seems.

I will keep checking the latest updates of Flash and hope this bug will soon be fixed.


Posted: 2008-11-07 22:49
OK, this is (as long as Flash 10 is still broken) the final way LCWO deals with it:

In your CW settings you can now chose "Flash Player 10" besides the old options (Flash Player and Embedded MP3). If the Flash Player 10 is chosen, a certain amount of silence is added to the start of each file, so the garbled part is muted and doesn't matter.

Since most people still use Flash 9, the default setting for all users is the "normal" Flash player. If you use Flash 10, change your CW settings accordingly.

73, Fabian

Posted: 2008-11-30 21:19
Sri for the delay, been in VP9 for a couple of weeks. I should have said I was running FF3, BTW. Thanks for the fix. I haven't tried it yet, but hope that they get Flash fixed too. I never use IE. Interestingly, the lite version of FF running on my Nokia N800 with Flash (under Linux) runs fine, except tapping out the characters with a stylus makes my copy even worse :-)

Posted: 2009-03-17 21:54
Very few complaints about this problem lately, but there are some news: The latest version of the JW Player which I use for playing the MP3s, in combination with the latest version of Flash seems to work fine again. I.e. no clicking or garbling even if the sound starts instantly.

The programming interface for the new JW Player version has changed, so it'll take a few days to implement, but then I hope to come up with something that works for everyone with the same settings...


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