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Old 06-03-2011, 11:35 AM
Camaleón
 
Default Adobe flash sound issues

On Fri, 03 Jun 2011 14:01:27 +0300, John Kapnogiannis wrote:

> Hello there. I got an annoying problem with flash sound. On some
> services (eg Grooveshark) I hear scratches and deformities during
> playback. The actuall track is
> heard on the background though. I have flash installed through the
> flashplugin-nonfree packages. The problem even exists on Google Chrome,
> which is supposed to
> use a flash installation of its own. As far as I know flash version is
> not the latest. I am using Debian testing on a Dell Studio 1555 laptop
> with kde and alsa.

I would first check if you have installed the latest version (for linux
that's now "10.3.181.14"):

http://www.adobe.com/software/flash/about/

If not, try with the most updated flash player from Adobe.

> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
> Controller (rev 03) : This is what lspci gives me about my sound card.
> This may be related
> to my problem, cause for a few weeks vlc gives me an error that the
> soundcard is already in use when another sound is already playing.

"lsof | grep snd" will tell you if there is some sound process opened.

> In case you need more info, just tell.
>
> Thanks in advance for your help,
>
> John
>
> P.S: Please CC me in your replies cause I am not subscribed to this
> mailing list

Sorry but I can't :-(

You can read the mailing list archive.

Greetings,

--
Camaleón


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Old 06-13-2011, 09:23 AM
komodo
 
Default Adobe flash sound issues

Hi

I had the same problem, and this fixed it

http://earth.rockinthebury.com/?p=104


Martin

On Friday 03 June 2011 13:01:27 John Kapnogiannis wrote:
> Hello there. I got an annoying problem with flash sound. On some services
> (eg Grooveshark) I hear scratches and deformities during playback. The
> actuall track is
> heard on the background though. I have flash installed through the
> flashplugin-nonfree packages. The problem even exists on Google Chrome,
> which is supposed to
> use a flash installation of its own. As far as I know flash version is not
> the latest. I am using Debian testing on a Dell Studio 1555 laptop with kde
> and alsa.
>
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
> Controller (rev 03) : This is what lspci gives me about my sound card. This
> may be related
> to my problem, cause for a few weeks vlc gives me an error that the
> soundcard is already in use when another sound is already playing.
>
> In case you need more info, just tell.
>
> Thanks in advance for your help,
>
> John
>
> P.S: Please CC me in your replies cause I am not subscribed to this mailing
> list


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Old 06-13-2011, 11:50 PM
Wolodja Wentland
 
Default Adobe flash sound issues

On Fri, Jun 03, 2011 at 14:01 +0300, John Kapnogiannis wrote:
> I got an annoying problem with flash sound. On some services (eg
> Grooveshark) I hear scratches and deformities during playback. The actuall
> track is heard on the background though. I have flash installed through the
> flashplugin-nonfree packages. The problem even exists on Google Chrome,
> which is supposed to use a flash installation of its own. As far as I know
> flash version is not the latest. I am using Debian testing on a Dell Studio
> 1555 laptop with kde and alsa.

I guess that you are using amd64 and that the problem you are seeing is due to
a difference in the memcpy implementation in libc6.

Could you try to run iceweasel or chromium in the following way:

$ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/iceweasel
$ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/chromium

You can find details about this in /usr/share/doc/libc6/README.Debian.gz and I
would suggest to create a little shell script like the following:

--- snip ---
#!/bin/sh
LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/iceweasel
--- snip ---

and place is somewhere in your PATH (~/bin comes to mind) if that does indeed
solve the problem. Note that the path to memcpy-preload.so will change to a
multiarch conforming one in the next libc6 version that will hit wheezy. You
can then find it in /usr/lib/x86_64-linux-gnu/libc/memcpy-preload.so - but you
will be automatically informed about this is you have apt-listchanges
installed. If you don't install it and apt-listbugs with it.

I recommend reading the bug report on RedHat's bugtracker, it is worth your
time if you want to understand what is going on here.
--
.'`. Wolodja Wentland <babilen@gmail.com>
: :' :
`. `'` 4096R/CAF14EFC
`- 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC
 
Old 06-24-2011, 07:25 PM
Andrej Kacian
 
Default Adobe flash sound issues

On Tue, 14 Jun 2011 00:50:13 +0100
Wolodja Wentland <babilen@gmail.com> wrote:

> $ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/iceweasel
> $ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/chromium

Thanks for this! I noticed some weird sound artifacts in flash videos, but
didn't have the time to investigate. Next thing I open debian-user ML folder,
and the solution (well, workaround really) is staring right at me.

--
Andrej Kacian


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Old 06-27-2011, 09:40 AM
Wolodja Wentland
 
Default Adobe flash sound issues

On Fri, Jun 24, 2011 at 21:25 +0200, Andrej Kacian wrote:
> On Tue, 14 Jun 2011 00:50:13 +0100
> Wolodja Wentland <babilen@gmail.com> wrote:
>
> > $ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/iceweasel
> > $ LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /usr/bin/chromium
>
> Thanks for this! I noticed some weird sound artifacts in flash videos, but
> didn't have the time to investigate. Next thing I open debian-user ML folder,
> and the solution (well, workaround really) is staring right at me.

Please note that the paths changed due to the multiarch [0] transition. You
now have to use:

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libc/memcpy-preload.so

Have fun!

[0] http://wiki.debian.org/Multiarch/
--
.'`. Wolodja Wentland <babilen@gmail.com>
: :' :
`. `'` 4096R/CAF14EFC
`- 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC
 

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