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Other => General Topics => Topic started by: 2nd base on January 26, 2010, 10:41:10 AM

Title: New version of Avast causes stuttering audio
Post by: 2nd base on January 26, 2010, 10:41:10 AM
Does anyone know why any audio played now, whether it be youtube or whatever, constantly stutters? It didn't do it before I updated to the new version 5. Now that I have updated, everything stutters unless I disable the antivirus. Obviously, it's not my soundcard or BIOS or drivers or it would still do it when I disable this antivirus.
Title: Re: New version of Avast causes stuttering audio
Post by: Hermite15 on January 26, 2010, 10:51:35 AM
Hi,

I read a few times that some people had video streaming issues after installing avast 5...sorry no idea, I don't have this problem and never had it with the various beta builds I tested. Must be something wrong with the web shield in certain conditions. What brings deactivating the web shield (not that I advise it), any changes ?
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 26, 2010, 02:02:18 PM
If I disable it via the 10 minute option in the notifications area of the taskbar, the video runs fine. Once the time is up, it goes back to stuttering. It's a windows xp installation, btw. Forgot to mention that. It doesn't slow down my computer at all which is good, it's just that I use youtube alot and that just happens to be what is messing up. I have the videos set to low res and speed too just to see if it makes a difference but no dice.

It's all of my audio. Not just youtube, as I had thought. Any video that I play anywhere at all stutters. The video picture is fine though. Reinstalled the operating system after my first post just because i had the time to do so and it remains the same.
All avast settings are left at default settings if that helps. Although  did change the update timer to 480
Title: Re: New version of Avast causes stuttering audio
Post by: Hermite15 on January 26, 2010, 03:09:58 PM
the thing is according to the default settings, videos and audio are not supposed to be scanned (video/* and audio/* in the exclusion list) so your issue is weird, could you check if you have these in the exclusion list (web shield expert settings) ?
Title: Re: avast 5 update
Post by: mokkaman on January 26, 2010, 03:18:30 PM
when will avast5 come via updater of version 4.8;;?
Title: Re: avast 5 update
Post by: Hermite15 on January 26, 2010, 03:48:33 PM
when will avast5 come via updater of version 4.8;;?

why do you post that here  ???
Title: Re: New version of Avast causes stuttering audio
Post by: Chris Thomas on January 26, 2010, 09:00:42 PM
I never had this problem and which browser do you use?
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 01:33:33 AM
I never had this problem and which browser do you use?

IE8 with only 2 add-ons (load time of less than a second) and no accelerators.
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 01:35:04 AM
the thing is according to the default settings, videos and audio are not supposed to be scanned (video/* and audio/* in the exclusion list) so your issue is weird, could you check if you have these in the exclusion list (web shield expert settings) ?

That seems to be ok. Is as it is supposed to be.
Title: Re: New version of Avast causes stuttering audio
Post by: Charuto on January 27, 2010, 02:59:37 AM
This happens to me too when I'm browsing the web, downloading, and playing anything with audio at the same time. I'm pretty sure it's the shields because everything is hunky dory when they're turned off.

I'm on XP SP3 and using Firefox.
Title: Re: New version of Avast causes stuttering audio
Post by: rdmaloyjr on January 27, 2010, 03:16:05 AM
Since avast! 5 I get a little stuttering with magicJack.  Mostly when I make a call the stuttering is in the ring while I'm waiting for someone to answer. 
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 03:33:16 AM
Since avast! 5 I get a little stuttering with magicJack. mostly when I make a call the stuttering is in the ring while I'm waiting for someone to answer.  


Well, that's interesting. When you scribbled "magic jack", I looked under my desk to see if I had anything plugged into my usb and found that I had a flash drive plugged in with about 4 thousand of my sons baseball photos and quicktime movies on it. Once I unplugged the flash drive, I played a web video successfully without any stuttering while running Avast!

Will have to wait and see if it happens again. It may just be a coincidence but will post back after I check out some other hardware settings. It may not necessarily be Avast! causing the problem, per se.
Title: Re: New version of Avast causes stuttering audio
Post by: Chris Thomas on January 27, 2010, 05:11:56 AM
Hah,

Now I realize that I also have this problem with my VOIP software
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 05:19:40 AM
The usb thought was not relevant, I guess. I still have the problem. I don't get it. It has to be the scanning engine being rude. That's all I can come up with. On a side note, make sure that if you have updated from 4.8 to the new version that you check you're IM settings for scanning attatchments sent via IM. Mine was still set to scan with the old 4.8 quick scanner even though it is no longer there to scan with. Change it to reflect the location for the new version of the quick scanner.

Sure wish that they would have left the option to enable the view of the update in progress icon.
Title: Re: New version of Avast causes stuttering audio
Post by: shae_32 on January 27, 2010, 05:45:10 AM
You know, I wonder if you're on to something here. I've had that happen to me too.  :-\

I've uninstalled and reinstalled the Flash Player, also did a System Restore to be safe. LOL and I also got a hold of Adobe's Flash Player debugger thing. (It debugs the Active X control.) So far, seems okay. Hmm...wonder if it's some issue with Adobe Flash latest player and Avast new version? ???
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 05:53:15 AM
I don't know. there is all kinds of quirky little things happening now that never happened before. Even took the silly notion that maybe defragmenting may help but even that won't function as usual. At the end of the defragment, the report states that there were files that could not be defragmented. This has never happened and I defragment almost daily.
Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 05:59:52 AM
I'm afraid to keep looking for reasons as to why it's happening with the sound problem. Every time I go looking, I find something new thats broken since this update. Except now it's an actual system program that's fudged up. Guess it's true that nothing really is free after all.......
Title: Re: New version of Avast causes stuttering audio
Post by: shae_32 on January 27, 2010, 07:44:48 AM
Well, I ended up putting YouTube in the URL exclusions. No more issues with the sound in the videos flipping out. :D

Title: Re: New version of Avast causes stuttering audio
Post by: 2nd base on January 27, 2010, 09:53:39 AM
This problem is really peeving me to no end. >:( >:
Title: Re: New version of Avast causes stuttering audio
Post by: andrew932 on January 27, 2010, 05:07:32 PM
I'm getting the exact same problem. I didn't realise a topic had already made as I posted one in the Avast home/pro forum. Hasn't done it today but I don't think it even bothered to load at all because the icon hasn't come up on the taskbar. Arghh!

I certasinly wouldn't put youtube into the exclusions list.
Title: Re: New version of Avast causes stuttering audio
Post by: coolsilver on January 28, 2010, 06:48:48 AM
I have on my netbook with Win 7 and Avastt 5. I'm not sure it is the Windows 7 itself or Avast. My other Windows 7 machine runs perfect with Avast 5.
Title: Re: New version of Avast causes stuttering audio
Post by: TcRoc on January 28, 2010, 03:35:28 PM
I am having the same problems with video and audio ,, I installed yesterday ,,,, any idea how to fix this.
And it doesn't matter if I turn the shields off ,,everything  audio or video is still not right... I sure hope downloading this Program that is suppose to help didn't muff my system up permenetly
Title: Re: New version of Avast causes stuttering audio
Post by: bastienrehm on February 04, 2010, 09:55:22 PM
I had the problem as well.

Like someone else mentioned it had to do with the shields, so I disabled every shield one by one to see which one was the cause.

It turns out it was the behavioral shield. So I just disabled it permanently and the problem was solved. If there is anyway to "fix" this on the avast developpers' end it'd be nice unless that's how it's intended to work.

By the way it also makes the cursor stutter a lot, like it's not responsive anymore or the cpu is overwhelmed which it's not.

Edit: According to Gopher John, things are fixed with the latest update after a reboot (very important) thread: http://forum.avast.com/index.php?topic=54229.0
Title: Re: New version of Avast causes stuttering audio
Post by: OmegaWolf747 on February 09, 2010, 12:28:37 AM
Hi! I've also been having this problem on two different laptops, both Toshiba Satellites! One was a Windows Vista Home Premium whose HDD finally died after the stuttering got really bad and this one running Windows 7 Home Premium. The only constant between both is that I had Avast 4.8 on them. I would hate to think Avast would cause such problems, up to and including the death of a laptop's hard drive.

I love Avast and don't want to change antivirus programs. However, I plan to run Unreal Tournament 2004 on this laptop in the next few months and don't want Avast to cause stuttering in my game.

The poster before me mentioned disabling a "behavioral shield". Which one is that? The services I have listed are: Internet Mail, Instant Messaging, Network Shield, Outlook/Exchange, P2P Shield, Standard Shield, Web Shield.

Also, someone mentioned adding YouTube's URL to a whitelist of sites not to check. Why would this be a bad idea? YouTube is just a video site.

Thanks.
Title: Re: New version of Avast causes stuttering audio
Post by: shae_32 on February 09, 2010, 04:35:36 AM
Hi OmegaWolf,

The version of Avast that has the Behavior Shield is 5.0 :) I ended up putting the FLV extension in the MIME type extensions. There's something with how the Web Sheild or various other shields behave with that kind of content for some reason.

Anyway, I hope that answers your question. I don't know why that would be happening with Avast 4.8  ???
Title: Re: New version of Avast causes stuttering audio
Post by: OmegaWolf747 on February 09, 2010, 04:56:53 PM
I wish I knew too. It's quite noisome. On my old computer, these stutters turned into freezeups and BSODs. I would hate to think Avast was the cause.

Can filetype exceptions be added in 4.8? I looked in Exceptions in Setup, but all it talks about adding are these things called masks.