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Level 1

5 points

No sound in YouTube, Vimeo, Hulu, or VLC with OSX Lion; iTunes and system sounds are fine

I have a mid-2010 iMac with Lion installed. Ever since I upgraded to Lion a few days ago, I've had no audio in YouTube, Hulu, Vimeo, Pandora, etc.

Also, no audio in VLC - which unlike Youtube, etc., is not a streaming video program but a downloaded program that runs on my computer, not streaming.

I'm using the default internal speakers that come inside the iMac.

The audio works fine with iTunes, Google Notifier, and iChat, and I can hear the normal "boops" when I raise or lower the volume via the keyboard or menubar.

The internet problems happen in Chrome, Safari, and Firefox.

If I restart the computer, audio works fine again. But when the computer goes to sleep and wakes up, the problem returns.

I have Flip4Mac and Perian installed if that info helps.

Plugging in and unplugging headphones doesn't help.

I've seen some discussions where people have no sound on the entire computer; that doesn't appear to be my issue.

Any suggestions?

iMac 21.5, Mac OS X (10.7)

Posted on Jul 28, 2011 6:54 AM

23 replies

Sep 23, 2011 5:14 AM in response to Amano_Jyaku

FYI:

Today my bug report got flagged as "duplicate".

So, Apple knows about this and the issue got acknowleged.

Oct 14, 2011 6:12 AM in response to Amano_Jyaku

After installing the 10.7.2 update the problem seems to be gone.

Oct 15, 2011 12:06 PM in response to Amano_Jyaku

This seems to be fixed for me too.

Sjazbec

Level 4

1,674 points

Oct 15, 2011 9:48 PM in response to Amano_Jyaku

Amano_Jyaku wrote:

After installing the 10.7.2 update the problem seems to be gone.

10.7.2 has fixed so far EVERY issue I had with Lion. Highly recommended update, even if you don't plan to use iCloud ( fully optional feature ).

702Elec

Level 1

0 points

Jul 17, 2012 8:27 PM in response to tinmanic

The "no audio" problem in Youtube, etc. has just begun for me for the first time using 10.7.4. I'm lost.

Varzea

Level 1

0 points

Nov 12, 2012 3:16 PM in response to tinmanic

I'm on 10.8.2 and I just started having this problem. I did notice that, although it's been happening for a few days now, today my audio was working fine from the browser (YouTube, GrooveShark, etc.) until I opened up GarageBand, which killed it. In every case, the volume feedback still works, even when nothing else does. At other times, the issue only seems to be on my 27" display audio, but it works fine on my macbook pro speakers. Very odd. Killing the coreauidod process works - it's just a pain to have to do this.

Annalea

Level 1

5 points

Sep 4, 2013 9:46 AM in response to eirkeirkeirk

Fwiw, "force quit" in the activity monitor doesn't kill coreaudio on my imac. I had to use just the "quit" option, and it fixed it, but I wasn't able to hear anything until I changed the volume. So, don't give up until you try turning the volume up or down.

Thanks for the tip!

Dec 9, 2013 10:50 AM in response to tinmanic

My Safari has no sound on youtube, Vimeo and Google hang out, so i just removed cookies and restart Safari.. Its working now.

No sound in YouTube, Vimeo, Hulu, or VLC with OSX Lion; iTunes and system sounds are fine