timer problems

timer problems

[Barry Pollock]

use the alsa drivers.
they are compiled separately from the rest of the kernel. because the
timing is esential for the digital, speakup effects the kernel's timing in
order to perform its functions. alsa uses its own libraries which allows
it  to perform independantly.
although this may not be exactly what  happens, use the alsa drivers to
build your sound modules.
they are available from www.alsa-project.org you can download the drivers
the libraries utilites and anything you may need from ftp.alsa-project.org
build the drivers first
then the libries
then the utilities.
do not mix the versions

Re: timer problems

[Deedra Waters]

Ok, I've found the alsa drivers, and the libraries, but I don't see
anything on the websight that says anything about utilities in the ftp
directories,  if someone could point me in the right direction  I'd
appreciate it.


On Tue, 6 Nov 2001, Barry Pollock wrote:

> use the alsa drivers.
> they are compiled separately from the rest of the kernel. because the
> timing is esential for the digital, speakup effects the kernel's timing in
> order to perform its functions. alsa uses its own libraries which allows
> it  to perform independantly.
> although this may not be exactly what  happens, use the alsa drivers to
> build your sound modules.
> they are available from www.alsa-project.org you can download the drivers
> the libraries utilites and anything you may need from ftp.alsa-project.org
> build the drivers first
> then the libries
> then the utilities.
> do not mix the versions
> 
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 

Re: timer problems

[Deedra Waters]

Ok I'm stupid... it was right in front of  me and I  didn't see it.

On Tue, 6 Nov 2001, Deedra Waters wrote:

> Ok, I've found the alsa drivers, and the libraries, but I don't see
> anything on the websight that says anything about utilities in the ftp
> directories,  if someone could point me in the right direction  I'd
> appreciate it.
> 
> 
> On Tue, 6 Nov 2001, Barry Pollock wrote:
> 
> > use the alsa drivers.
> > they are compiled separately from the rest of the kernel. because the
> > timing is esential for the digital, speakup effects the kernel's timing in
> > order to perform its functions. alsa uses its own libraries which allows
> > it  to perform independantly.
> > although this may not be exactly what  happens, use the alsa drivers to
> > build your sound modules.
> > they are available from www.alsa-project.org you can download the drivers
> > the libraries utilites and anything you may need from ftp.alsa-project.org
> > build the drivers first
> > then the libries
> > then the utilities.
> > do not mix the versions
> > 
> > 
> > 
> > _______________________________________________
> > Speakup mailing list
> > Speakup@braille.uwo.ca
> > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> > 
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 

Re: timer problems

[Shaun Oliver]

ok I take that back it was barry that posted about the kernel timing
issues.
ftp to the alsaproject.org site and cd to pub then utils.
On Tue, 6 Nov
2001, Deedra Waters wrote:

> Ok, I've found the alsa drivers, and the libraries, but I don't see
> anything on the websight that says anything about utilities in the ftp
> directories,  if someone could point me in the right direction  I'd
> appreciate it.
> 
> 
> On Tue, 6 Nov 2001, Barry Pollock wrote:
> 
> > use the alsa drivers.
> > they are compiled separately from the rest of the kernel. because the
> > timing is esential for the digital, speakup effects the kernel's timing in
> > order to perform its functions. alsa uses its own libraries which allows
> > it  to perform independantly.
> > although this may not be exactly what  happens, use the alsa drivers to
> > build your sound modules.
> > they are available from www.alsa-project.org you can download the drivers
> > the libraries utilites and anything you may need from ftp.alsa-project.org
> > build the drivers first
> > then the libries
> > then the utilities.
> > do not mix the versions
> > 
> > 
> > 
> > _______________________________________________
> > Speakup mailing list
> > Speakup@braille.uwo.ca
> > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> > 
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 

-- 
Shaun Oliver.

"We realize we have a problem with communication. However, we're not going
to discuss it with our staff."
email: shauno@goanna.net.au
ICQ: 76958435

Re: timer problems

[Frank Carmickle]

On Wed, 7 Nov 2001, Shaun Oliver wrote:

> ok I take that back it was barry that posted about the kernel timing
> issues.

I was the one who sent the message of correction.  And I will restate it
in different terms.  Alsa does not live in user space.  You insmod the
modules in to your kernel right?  If you don't have a second cpu and the
one you have is busy your shit out of luck any way you slice it.  It's all
a compromise.  You need to hear chars from your synth and at 9600 bod you
get about one char per ms.  So how long do you want to have silence in the
speech output while your waiting for the next load of chars?  Probably
none.  This is why the buffers are set the way they are.  So in order to
not have breakups in your audio you have to send more bits to the audio
hardware at the times when speakup isn't hogging the cpu to get the chars
out the port.  It's not very difficult to find the right balance.  But do
a bunch more disk io and you'll be sitting there for a while.  My machine
is very much not interactive when updatedb occurs.

The reason why alsa is better then the open sound system is that alsa uses
much less cpu load.  Thus getting more work done during those times when
speakup isn't hogging the cpu.  

-- 
     Frank Carmickle
phone:     412 761-9568
email:     frankiec@dryrose.com

Re: timer problems

[Shaun Oliver]

ok I retake it back hahahahahaha.
I have found having read all this that my doubletalk and speakup don't
cause this problem as much when I wanted to play an mp3 file.
I only got the alsa modules because I wanted to be able to use my sound
card with better functionality than was afforded me with the kernel
drivers.
and not only that, I wanted to use speak_freely too. <grin> but that's
now turned into a port forwarding issue.
damn.
but any hoo, I apologise. 
On Wed, 7 Nov 2001, Frank
Carmickle wrote:

> On Wed, 7 Nov 2001, Shaun Oliver wrote:
> 
> > ok I take that back it was barry that posted about the kernel timing
> > issues.
> 
> I was the one who sent the message of correction.  And I will restate it
> in different terms.  Alsa does not live in user space.  You insmod the
> modules in to your kernel right?  If you don't have a second cpu and the
> one you have is busy your shit out of luck any way you slice it.  It's all
> a compromise.  You need to hear chars from your synth and at 9600 bod you
> get about one char per ms.  So how long do you want to have silence in the
> speech output while your waiting for the next load of chars?  Probably
> none.  This is why the buffers are set the way they are.  So in order to
> not have breakups in your audio you have to send more bits to the audio
> hardware at the times when speakup isn't hogging the cpu to get the chars
> out the port.  It's not very difficult to find the right balance.  But do
> a bunch more disk io and you'll be sitting there for a while.  My machine
> is very much not interactive when updatedb occurs.
> 
> The reason why alsa is better then the open sound system is that alsa uses
> much less cpu load.  Thus getting more work done during those times when
> speakup isn't hogging the cpu.  
> 
> 

-- 
Shaun Oliver.

"We realize we have a problem with communication. However, we're not going
to discuss it with our staff."
email: shauno@goanna.net.au
ICQ: 76958435

RE: timer problems

[Watson, Keith]

I think we have all said that at one point or another. No biggy

Keith Watson
GroupTech
Email:  Keith.Watson@sypris.com <mailto:Keith.Watson@sypris.com> 
Phone: (813) 972-6270
Fax #:  (813) 972-6842
 
 


-----Original Message-----
From: Deedra Waters [mailto:dmwaters@tampabay.rr.com]
Sent: Tuesday, November 06, 2001 4:03 PM
To: speakup@braille.uwo.ca
Subject: Re: timer problems


Ok I'm stupid... it was right in front of  me and I  didn't see it.

On Tue, 6 Nov 2001, Deedra Waters wrote:

> Ok, I've found the alsa drivers, and the libraries, but I don't see
> anything on the websight that says anything about utilities in the ftp
> directories,  if someone could point me in the right direction  I'd
> appreciate it.
> 
> 
> On Tue, 6 Nov 2001, Barry Pollock wrote:
> 
> > use the alsa drivers.
> > they are compiled separately from the rest of the kernel. because the
> > timing is esential for the digital, speakup effects the kernel's timing
in
> > order to perform its functions. alsa uses its own libraries which allows
> > it  to perform independantly.
> > although this may not be exactly what  happens, use the alsa drivers to
> > build your sound modules.
> > they are available from www.alsa-project.org you can download the
drivers
> > the libraries utilites and anything you may need from
ftp.alsa-project.org
> > build the drivers first
> > then the libries
> > then the utilities.
> > do not mix the versions
> > 
> > 
> > 
> > _______________________________________________
> > Speakup mailing list
> > Speakup@braille.uwo.ca
> > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> > 
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 


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