Re: Espeak Server Likes PulseAudio?

[Christopher Chaltain <chaltain@xxxxxxxxxxx>]

No this is fine. I was just curious and looking to save something away 
for future reference. I don't need anything right now.

On 04/01/2013 12:00 PM, Steve Holmes wrote:
> I can dig up the exact URL when I get home tonight.  But in the
> meantime, I can give you an indirect way to get there.  It is a page
> in the ArchLinux wiki and the suggested change shouldn't be too Arch
> specific other than telling you to remove a package called
> pulseaudio-alsa; actually, that package contains only wone file,
> /etc/asound.conf <smile>. so First off, remove /etc/asound.conf if you
> have it and then go to
> https://wiki.archlinux.org and search for pulseaudio.
> Once in that document navigate on down till you find a section
> discussing how to get pulse and ALSA to work without stepping on each
> other.  They start out that part saying that it is "not recommended in
> most cases but as far as I'm concerned, I want to use espeakup with
> speakup so I need to do this hack.  they talk about modifying
> /etc/pulse/default.pa by uncommenting a couple static driver
> allocations and commenting auto detection.  It looks to me that they
> are channeling pulseaudio into ALSA's dmix plug-in but I'm not
> positive.
>
> The only side effect I'm noticing is that emacspeak is a bit sluggish
> in speech reaction but works well enough for me for the time being.
> Let me know if you still need an exact link or if this description
> gets you on your way.
>
> On 4/1/13, Christopher Chaltain <chaltain@xxxxxxxxxxx> wrote:
> > Do you mind sharing what you found out or providing a pointer to this
> > suggested configuration?
> >
> > On 04/01/2013 11:30 AM, Steve Holmes wrote:
> > > Well after two days of messing around and reading some write-ups for
> > > ArchLinux concerning PulseAudio, I founhd a suggested configuration to
> > > alter Pulse so it and ALSA function side by side now and I can use
> > > Emacspeak, Speakup and Gnome with Speech Dispatcher without any speech
> > > losses.  Also tim, I have not experienced any stability issues with
> > > the emacspeak espeak server other than while I was battling with Pulse
> > > and all.  It is using the pulse driver but I notice that espeak
> > > natively is also calling up pulseaudio.c but what's strange is
> > > espeakup does not; espeakup probably calls the espeak library function
> > > directly and that appears to go through ALSA.  Anyway, I seem to have
> > > all these environments working now and hopefully this "house of cards"
> > > won't collaps on me:).  I sure wish the Linux sound system were a lot
> > > simpler than all this.
> > >
> > > On 3/30/13, T.V. Raman <tv.raman.tv@xxxxxxxxxxx> wrote:
> > > > Jason, You have articulated part of the issue correctly. The
> > > > other reason why the pulseaudio / alsa combination gives such
> > > > vastly varying results is that the layering is complex;  See
> > > > Tim's earlier note.  If you have pulseaudio on a system, do an
> > > > aplay -v of a .wav file and look at the output -- you'll see the
> > > > audio buffers getting routed through multiple layers.  Now,
> > > > depending on the soundcard and the memory buffer size it needs,
> > > > sample conversions ... this can  go horribly wrong when you
> > > > generate a lot of rapid audio requests -- something that happens
> > > > with emacspeak a lot if you perform actions that both produce
> > > > speech and a rapid sequence of auditory icons.  For the record,
> > > > the first thing I did on my work machines after upgrading to
> > > > Precise was to nuke pulseaudio -- that is getting harder and
> > > > harder to do --
> > > > > > > > > "Jason" == Jason White <jason@xxxxxxxxxxx> writes:
> > > >       Jason> Tim Cross <theophilusx@xxxxxxxxxxx> wrote:
> > > >       >> Note that there should be no problems with alsa and
> > > >       >> pulseaudio. Pulseaudio is not a replacement for alsa. It
> > > >       >> is another abstraction layer on top of it and pulseaudio
> > > >       >> needs alsa
> > > >       Jason>
> > > >       Jason> Part of the problem might be that PulseAudio holds
> > > >       Jason> devices open even when not in use, so that
> > > >       Jason> applications which access the Alsa layer directly fail
> > > >       Jason> to open audio devices.
> > > >       Jason>
> > > >       Jason> As I remember, there is a way to configure PulseAudio
> > > >       Jason> to relinquish devices temporarily that aren't being
> > > >       Jason> used by applications.
> > > >       Jason>
> > > >       Jason> With apologies in advance if I am wrong in the above -
> > > >       Jason> it's a while since I read about these issues.
> > > >       Jason>
> > > >       Jason>
> > > > -----------------------------------------------------------------------------
> > > >       Jason> To unsubscribe from the emacspeak list or change your
> > > >       Jason> address on the emacspeak list send mail to
> > > >       Jason> "emacspeak-request@xxxxxxxxxxx" with a subject of
> > > >       Jason> "unsubscribe" or "help".
> > > >
> > > > --
> > > > Best Regards,
> > > > --raman
> > > >
> > > > --
> > > > Best Regards,
> > > > --raman
> > > >
> > > > --
> > > > Best Regards,
> > > > --raman
> > > >
> > > >
> > > > On 3/29/13, Jason White <jason@xxxxxxxxxxx> wrote:
> > > > > Tim Cross <theophilusx@xxxxxxxxxxx> wrote:
> > > > >
> > > > > > Note that there should be no problems with alsa and pulseaudio.
> > > > > > Pulseaudio
> > > > > > is not a replacement for alsa. It is another abstraction layer on top
> > > > > > of
> > > > > > it
> > > > > > and pulseaudio needs alsa
> > > > >
> > > > > Part of the problem might be that PulseAudio holds devices open even
> > > > > when
> > > > > not
> > > > > in use, so that applications which access the Alsa layer directly fail
> > > > > to
> > > > > open
> > > > > audio devices.
> > > > >
> > > > > As I remember, there is a way to configure PulseAudio to relinquish
> > > > > devices
> > > > > temporarily that aren't being used by applications.
> > > > >
> > > > > With apologies in advance if I am wrong in the above - it's a while
> > > > > since
> > > > > I
> > > > > read about these issues.
> > > > >
> > > > > -----------------------------------------------------------------------------
> > > > > To unsubscribe from the emacspeak list or change your address on the
> > > > > emacspeak list send mail to "emacspeak-request@xxxxxxxxxxx" with a
> > > > > subject of "unsubscribe" or "help".
> > > >
> > > > -----------------------------------------------------------------------------
> > > > To unsubscribe from the emacspeak list or change your address on the
> > > > emacspeak list send mail to "emacspeak-request@xxxxxxxxxxx" with a
> > > > subject of "unsubscribe" or "help".
> > >
> > > -----------------------------------------------------------------------------
> > > To unsubscribe from the emacspeak list or change your address on the
> > > emacspeak list send mail to "emacspeak-request@xxxxxxxxxxx" with a
> > > subject of "unsubscribe" or "help".
> >
> > --
> > Christopher (CJ)
> > chaltain at Gmail
> >
> > -----------------------------------------------------------------------------
> > To unsubscribe from the emacspeak list or change your address on the
> > emacspeak list send mail to "emacspeak-request@xxxxxxxxxxx" with a
> > subject of "unsubscribe" or "help".

--
Christopher (CJ)
chaltain at Gmail

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