[ubuntu-studio-users] HTML5 and pulseaudio in firefox

[Kaj Ailomaa]

On Sat, Nov 8, 2014, at 11:48 AM, Set Hallstrom wrote:
> 
> On 2014-11-07 16:58, Kaj Ailomaa wrote:
> >
> > What do you mean by the CPU going bananas? You mentioned javascript.
> > What is the javascript for? Any chance you can pin down the reason more?
> >
> 
> Hi,
> 
> Sorry, need to remember slang is not very handy in these types of
> context... :facepalmingmyself:
> 
> By going bananas i mean going overload. It doesn't push a full 100% over
> longer periods of time, but the task manager shows firefox eating
> between 95% and 100% of resources. also the sound starts flickering.
> 
> I use the java script to control audio objects on my homepage a pretty
> simple pause/play button, with an eventlistener loading new url when
> sound ends.
> 
> This happened to me as i was developing it using jekyll's build in http
> server, and hence while i was refreshing a lot and frequently.
> 
> I can reproduce it on many other pages with audio tags. Not only my own.
> Everytime i refresh such a page, a new playback item for firefox is
> displayed in the pulseaudio Volume Control, while the old ones remain
> althought the VU meter is inactive on the older ones. If i quit firefox
> these items disappear, but closing the concerned tab will not help.
> 
> Hope this clears it up. If you have any idea of what else i can test,
> let me know :)
> 
> Thanks again!
> 

Do other browsers behave the same way?
If yes, I still couldn't say for sure, but it sounds like a problem with
pulseaudio. You could report a bug. In a terminal, type: ubuntu-bug
pulseaudio. You'll need a launchpad account - http://launchpad.net.