Re: [orca-list] Sound issues in Ubuntu Mate 19.04 and 19.10

[Nick Wood <nick microlitesoftware co uk>]

Hi John,

Can't speak for others but in my case its definitely a conflict between 
pulse and speech dispatcher. Whether there is an underlying Linux driver 
issue also at play I'm not sure.

- Same machine running Windows: No crackling.
- Linux/Pulse without Orca: No crackling.

Every time I kill the Pulseaudio process and Pulse restarts, the 
crackling comes back for 20-30 secs.

This is with zero CPU load.

Therefore, I suspect my issue is something to do with Pulse, Alsa, the 
underlying Intel driver and Speech Dispatcher - as they all have a part 
to play.

However, my issue is different to Alex, as for me everything is fine 
after Pulse has been running for 30 seconds or so.

Regards,

Nick

On 19/01/2020 15:43, JOHN G HEIM via orca-list wrote:
> The crackly sound early on is due to the sound card drivers being 
> initialized. Its not even a Linux problem. Its common for the music 
> Windows plays at startup to be crackly too. If you are getting crackly 
> noises when you are playing regular sound files, then its not an orca or 
> speech dispatcher problem.
>
>
> A few theories:
>
> 1. The driver is not getting the cpu cycles it needs. Is your system 
> sluggish? Have you checked the load?
>
> 2. A bug in the driver was introduced during the upgrade.
>
> 3. Defective sound card. The fact that the problem started after an 
> upgrade could be a coincidence.
>
>
> My suggestion is that you try a different sound card if possible. I'm 
> typing this message on a machine with the sound card on the mobo 
> disabled. Something got fried on it so I had to add a 2nd sound card.
>
>
> Another thing you could do is to get some USB speakers.
>
>
>
> On 1/19/20 2:21 AM, Alexandro Jurgensen via orca-list wrote:
>
> > Hello Christopher, Nick, and All,
> >
> > Thanks Nick and Christopher for the quick responses.
> >
> > I get the super crackly speech Nick and Christopher describe on Ubuntu 
> > Mate 19.04 but not under Ubuntu Mate 19.10. It does settle down after 
> > 20 to 30 seconds. This isn’t the issue I’m seeing. I’m getting 
> > persistent crackles in my audio (both speech and system audio) after 
> > speech dispatcher starts. They aren’t nearly as crackly as what nick 
> > and Christopher describe but still really annoying. Any ideas?
> >
> > Warm regards,
> > Alex
> >
> > Alex Jurgensen,
> > I wear many hats!
> >
> > President and Independent Living Skills Instructor
> > Camp Bowen Society for the Independence of the Blind and Deafblind
> >
> > Fostering independence Through Friendship
> >
> > www.campbowen.ca <http://www.campbowen.ca>
> >
> > +1 (604) 947-0021
> > +1 (844) MYBOWEN (692-6936)
> >
> > Direct extension: 102
> >
> > President and Lead Software Developer,
> > Camp Bowen Innovations
> >
> > > On Jan 18, 2020, at 5:40 AM, Christopher Chaltain via orca-list 
> > > <orca-list gnome org <mailto:orca-list gnome org>> wrote:
> > >
> > > I see exactly what Nick is describing below on my Ubuntu 16.04 
> > > system. I tried a configuration change someone suggested, but that 
> > > caused worse problems, so I undid that change. Just as with Nick, 
> > > since it clears up after half a minute or so, it doesn't really 
> > > bother me.
> > >
> > >
> > > On 1/18/20 7:02 AM, Nick Wood wrote:
> > > > Hi Alex,
> > > >
> > > > Not exactly much help, but I've had the same issue for years under 
> > > > Fedora, and probably some older versions of Ubuntu as well.
> > > >
> > > > For me, speech starts off crackly but settles down after about 20-30 
> > > > seconds, so its not too much of an issue for me.
> > > >
> > > > Does yours improve after a short time or does it remain crackly?
> > > >
> > > > I think the last time I raised it, Luke said it was something to do 
> > > > with the way in which Speech Dispatcher and PulseAudio communicate.
> > > >
> > > > Regards,
> > > >
> > > > Nick
> > > >
> > > >
> > > > On 18/01/2020 00:05, Alexandro Jurgensen via orca-list wrote:
> > > > > Hello All,
> > > > >
> > > > > I’m currently experiencing some issues with sound under Ubuntu Mate 
> > > > > 19.04 and Ubuntu Mate 19.10. In both cases, after starting Orca 
> > > > > after reboot, sound coming from my system takes on a crackly 
> > > > > quality. Playing an audio file after a reboot but before Orca is 
> > > > > launched does not exhibit the crackly sound quality.
> > > > >
> > > > > I’ve tried Googling the issue with no luck. Ubuntu Mate 19.04 is 
> > > > > instilled on an aluminum unibody Macbook (2008). Ubuntu Mate 19.10 
> > > > > is running on a white Macbook (2007). Both machines are running the 
> > > > > 64-bit versions of their respective operating system.
> > > > >
> > > > > Any help would be greatly appreciated.
> > > > >
> > > > > Warm regards,
> > > > > Alex
> > > > >
> > > > > Alex Jurgensen,
> > > > > I wear many hats!
> > > > >
> > > > > President and Independent Living Skills Instructor
> > > > > Camp Bowen Society for the Independence of the Blind and Deafblind
> > > > >
> > > > > Fostering independence Through Friendship
> > > > >
> > > > > www.campbowen.ca <http://www.campbowen.ca> <http://www.campbowen.ca>
> > > > >
> > > > > +1 (604) 947-0021
> > > > > +1 (844) MYBOWEN (692-6936)
> > > > >
> > > > > Direct extension: 102
> > > > >
> > > > > President and Lead Software Developer,
> > > > > Camp Bowen Innovations
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > orca-list mailing list
> > > > > orca-list gnome org <mailto:orca-list gnome org>
> > > > > https://mail.gnome.org/mailman/listinfo/orca-list
> > > > > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > > > > Orca documentation: https://help.gnome.org/users/orca/stable/
> > > > > GNOME Universal Access guide: 
> > > > > https://help.gnome.org/users/gnome-help/stable/a11y.html
> > > > _______________________________________________
> > > > orca-list mailing list
> > > > orca-list gnome org <mailto:orca-list gnome org>
> > > > https://mail.gnome.org/mailman/listinfo/orca-list
> > > > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > > > Orca documentation: https://help.gnome.org/users/orca/stable/
> > > > GNOME Universal Access guide: 
> > > > https://help.gnome.org/users/gnome-help/stable/a11y.html
> > >
> > > --
> > > Christopher (CJ)
> > > Chaltain at Gmail
> > >
> > > _______________________________________________
> > > orca-list mailing list
> > > orca-list gnome org <mailto:orca-list gnome org>
> > > https://mail.gnome.org/mailman/listinfo/orca-list
> > > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > > Orca documentation: https://help.gnome.org/users/orca/stable/
> > > GNOME Universal Access guide: 
> > > https://help.gnome.org/users/gnome-help/stable/a11y.html
> >
> >
> > _______________________________________________
> > orca-list mailing list
> > orca-list gnome org
> > https://mail.gnome.org/mailman/listinfo/orca-list
> > Orca wiki:https://wiki.gnome.org/Projects/Orca
> > Orca documentation:https://help.gnome.org/users/orca/stable/
> > GNOME Universal Access guide:https://help.gnome.org/users/gnome-help/stable/a11y.html
> --
> John G. Heim,jheim math wisc edu, 608-263-4189
>
>
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