Re: [Emacspeak] Pipewire v 1.0.2 broken

[Tim Cross <theophilusx@xxxxxxxxx>]

One final note.

Just updated Fedora 39 and it included pipewire v1.0.3 as an
update. After installing the update, all sound, including ALSA based
apps like the outloud speech server, are now working again.

In summary, pipwire v1.0.2 breaks alsa based apps. Pipewire 1.0.3 fixes
the bug which caused alsa to fail. At this point, I am able to run the
outloud server, espeak server and dtk-soft server with no issues under
Fedora 39 and pipewire 1.0.3


"T.V Raman" <raman@xxxxxxxxxx> writes:

> All this is accurate, have verified all of this while I came up to
> speedh with pipewire on my laptop -- pipewire 0.38 on a debian system.
>
> Only other bit I have to add:
>
> 1. No sound system on Linux can work without alsa -- so pipewire or
>    pulse or jack, the sound card is ultimately managed/driven through
>    alsa.
>    
>
> Tim Cross writes:
>  > 
>  > To keep things together for future reference
>  > 
>  > - The software dectalk package will build against either pulseaudio or
>  >   alsa. To link against pulseaudio, you must have the pulseaudio library
>  >   development package. For example, on Fedora 39, this is
>  >   pulseaudio-libs-devel. I did not have this devel package installed as
>  >   it hasn't been required for anything else and it is easy to miss the
>  >   fact that the dectalk has built against alsa. 
>  > 
>  > - Note that Fedora 39 is a fully pipewire enabled distribution. However,
>  >   as I understand it, pipewire is reallyh a layer on top of pulseaudio
>  >   and alsa, not a replacement for them. So you sitll need the alsa libs
>  >   to build IBM ViaVoice and you should install the pulseuadio library
>  >   development files to have the software dectalk built against pulse
>  >   rather htan alsa.
>  > 
>  > - Prior to the update of pipewire which broke alsa, I had been using the
>  >   software dectalk and the dtk-soft server with no problems linked
>  >   against alsa. Seems the software dectalk can work equally as well
>  >   against either pulse or alsa and will default to pulse if it can and
>  >   fall back to alsa if it cannot. 
>  >   
>  > 
>  > "T.V Raman" <raman@xxxxxxxxxx> writes:
>  > 
>  > > Tim,
>  > >
>  > > Following up to myself:
>  > >
>  > > 1. Verified that tcldtk.so does not link in lasound2 (alsa lib) --
>  > >    confirm using ldd on the .so file.
>  > > 2. Similarly -- the Dectalk libs --  do not link in alsa libs.
>  > > 3. This is why say works, but then dtk-soft should too ...
>  > > 4. Unless you perhaps didn't have the optional pipewire-pulse
>  > >    installed -- since the Dectalk  engine does use pulse for output.
>  > > 5. But then the mystery -- how did the say binary work?
>  > > 6. Treat this  more as a curious puzzle that might increase our
>  > >    understanding rather than something to solve.