Thanks, Attila.  I'm trying to learn how speech-dispatcher works, and
I expect to be able to debug this problem in the next week or two.
I'll let you know if I have a possible fix to be tested.

Bill

On Mon, Dec 14, 2009 at 9:32 AM, Attila Hammer <hamm...@pickup.hu> wrote:
> Bill, I think now this is not help, but I confirm this problem with both I386 
> and Amd64 architectures.
> This is not a hardware specific problem, because I see this problems with lot 
> of machines. The 1,2 second delay for example my notebook is 2-3 sec. If I 
> disabled Pulseaudio, impossible listen musics, videos, etc. If I enabled 
> pulseaudio, impossible using Karmic with Orca, because Speech-dispatcher 
> producing long delay, Gnome-speech driver cuts all end of sentence words. 
> This is absolute unacceptable.
> What can I choose? I using old, good working Jaunty system, but the support 
> time is limited with this system (18 months since 2008. april).
>
> The following topic is little offtopic with this bug:
> I tested, the Karmic specific problems is present with Debian Squeeze. No, 
> this problems absolute not present. If I remove Pulseaudio, don't disturb 
> Totem, GNOME-Volume applet, etc. Interesting, but in Squeeze, GNOME version 
> is 2.28.x.
> Speech-dispatcher, GNOME-Speech driver works very well. If Pulseaudio is 
> running, not producing Karmic specific problems, GNOME-Speech driver does'nt 
> cutting end of words, and Speech-dispatcher does'nt producing delay.
>
> You absolute right with first comment.
>
> Unfortunately I can not help founding workarounds, but if need testing
> any possible useful fixes, I help testing welcome.
>
> Attila
>
> --
> Pulseaudio causes 1/2 sec delay in Orca screen reader
> https://bugs.launchpad.net/bugs/468677
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “pulseaudio” package in Ubuntu: New
>
> Bug description:
> Binary package hint: pulseaudio
>
> There is about a 1/2 second delay when using Orca with pulseaudio in Karmic.  
> This delay is unacceptable to the blind community, since it makes key echo 
> useless, as you have to hit a key, and then wait for it to be read, and then 
> hit another key.  In response, blind/visually impaired people generally try 
> to remove pulseaudio from Karmic, with varying success.  However, those who 
> have succeeded in reverting to alsa report much quicker Orca response.  There 
> are no blind users who actually use Orca as installed by default in Karmic as 
> their main system, so far as I know, because of this problem.
>
> One potential "quick fix" to this problem might be to introduce a package 
> that would uninstall pulseaudio and install alsa-oss, while fixing up the 
> various related issues, such as modifying System/Preferences/Sound, and 
> getting the volume control working.  Preferably, the cause of this extreme 
> delay could be tracked down and eliminated.
>
> Until this is addressed, Karmic will remain one of the worst linux operating 
> systems for accessibility by the blind.  Vinux, for example, continues to be 
> forced to be based on Debian, even though most people in the blind community 
> would prefer an accessible version of Ubuntu.
>
> ProblemType: Bug
> Architecture: amd64
> ArecordDevices:
>  **** List of CAPTURE Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> AudioDevicesInUse:
>  USER        PID ACCESS COMMAND
>  /dev/snd/controlC0:  bill       1592 F.... pulseaudio
> Card0.Amixer.info:
>  Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 21'
>   Mixer name   : 'SigmaTel STAC9200'
>   Components   : 'HDA:83847690,102801cd,00102201 
> HDA:14f12bfa,14f100c3,00090000'
>   Controls      : 14
>   Simple ctrls  : 8
> Date: Sun Nov  1 09:19:53 2009
> DistroRelease: Ubuntu 9.10
> InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
> Package: pulseaudio 1:0.9.19-0ubuntu4
> ProcEnviron:
>  PATH=(custom, user)
>  LANG=en_US.UTF-8
>  SHELL=/bin/bash
> ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
> SourcePackage: pulseaudio
> Uname: Linux 2.6.31-14-generic x86_64
> XsessionErrors:
>  (gnome-settings-daemon:1603): GLib-CRITICAL **: g_propagate_error: assertion 
> `src != NULL' failed
>  (gnome-settings-daemon:1603): GLib-CRITICAL **: g_propagate_error: assertion 
> `src != NULL' failed
>  (nautilus:1713): Eel-CRITICAL **: eel_preferences_get_boolean: assertion 
> `preferences_is_initialized ()' failed
>  (polkit-gnome-authentication-agent-1:1743): GLib-CRITICAL **: 
> g_once_init_leave: assertion `initialization_value != 0' failed
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/468677/+subscribe
>

-- 
Pulseaudio causes 1/2 sec delay in Orca screen reader
https://bugs.launchpad.net/bugs/468677
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