[Sugar-devel] [Csnd] Re: Re: Re: Re: csound on Fedora 11 and rawhide

[Art Hunkins]

I've finally got sound, out of my Asus EeePC900 (Linux) - wonderful.

I'm also in a position to comment on much of what has been communicated over 
the last few hours.

1) The pulseaudio module *must* be downloaded/installed for Csound to work 
at all. Pulseaudio-libs is not required.
2) Pulseaudio works with either -+rtaudio=pulse, or nothing (I guess that 
means it is "patched").
3) As long as the separate pulseaudio module is present, ALSA also works 
(via -+rtaudio=alsa). ALSA is obviously in the main package already 
(apparently as part of pulseaudio).
4) Portaudio is indeed completely absent; if you specify -+rtaudio=pa [or 
portaudio], Csound crashes.
5) IMPORTANT: Pulseaudio latency is very poor; at the end of random 
envelopes, it even gives a short additional burst of sound (as if needing to 
empty an old buffer). ALSA (-+rtaudio=alsa), OTOH, is very responsive and 
totally satisfactory.

Bottom line: if I had my druthers, I'd vote for ALSA as the default. 
Nonetheless, I agree with Victor; there is no real problem - as long as we 
remember to specify -+rtaudio=alsa, and install the pulseaudio module. (I do 
admit this seems a bit convoluted, but such is life and Csound.)

As an aside: I'm still working on getting sound from my Windows box.

Art Hunkins

----- Original Message ----- 
From: <Victor.Lazzarini at nuim.ie>
To: <csound at lists.bath.ac.uk>
Sent: Tuesday, September 08, 2009 11:48 AM
Subject: [Csnd] Re: Re: Re: Re: csound on Fedora 11 and rawhide


But there is no problem then, we just have to install the
csound-alsa package (possibly if the alsa module is not in
the main package) and use -+rtaudio=alsa.

Victor

----- Original Message -----
From: Felipe Sateler <fsateler at gmail.com>
Date: Tuesday, September 8, 2009 4:45 pm
Subject: [Csnd] Re: Re: Re: csound on Fedora 11 and rawhide
To: csound at lists.bath.ac.uk

> AFAIK, yes, it was patched. The thing is that apparently the SoaS
> package is exactly the same one as in fedora. In fedora it might make
> sense to use pulseaudio (since pulseaudio will be running anyway and
> lots of soundcards/drivers do not allow multiple applications
> writing to
> them at the same time). I agree that pulseaudio in Sugar does
> not make
> much sense, but as long as it's the same package as in fedora, I think
> it will keep being pulse.
>
> On Tue, 2009-09-08 at 08:01 +0100, victor wrote:
> > Well, you can try adding -+rtaudio=pulse. If Csound was not
> patched, it
> > would
> > still look for portaudio.
> >
> > Was it patched to find pulseaudio by default? My only
> misgiving about this
> > is
> > that pulseaudio is very high-latency.
> >
> > Victor
> > ----- Original Message ----- 
> > From: "Art Hunkins" <abhunkin at uncg.edu>
> > To: "Peter Robinson" <pbrobinson at gmail.com>; "Felipe
> Sateler"
> > <fsateler at gmail.com>
> > Cc: <csound at lists.bath.ac.uk>
> > Sent: Tuesday, September 08, 2009 1:46 AM
> > Subject: [Csnd] Re: csound on Fedora 11 and rawhide
> >
> >
> > > I'm really excited that Csound now seems to be working on
> > > Sugar-on-a-Stick.
> > >
> > > I'm getting sound written to -odac, but unfortunately am
> still not hearing
> > > audio. I imagine my problem is my audio setup.
> > >
> > > My <CsOptions> are:
> > > -odac -m0d --expression-opt -b128 -B2048
> > >
> > > This set of options work fine on the XO-1, which is of
> course Csound5.08
> > > with alsa as default rtaudio.
> > >
> > > SoaS default is now Pulseaudio, about which I know nothing;
> my log shows
> > > it is being used, as expected.
> > >
> > > I noted that there were also "updates" available for
> pulseaudio and
> > > pulseaudio-libs. (I don't believe they were part of Soas
> Strawberry.) Not
> > > knowing whether these are now needed, I installed them as
> well. Still no
> > > audio.
> > >
> > > FWIW, I'm on my WindowsXP system, which has several audio
> drivers
> > > installed on it along with a specified (Windows) default.
> I've no idea if
> > > this matters.
> > >
> > > What am I missing? I assume it's something in <CsOptions>.
> > >
> > > I'm hoping that for purposes of my Sugar activity, that the
> additional
> > > pulseaudio files will not need to be installed. For kids and
> their
> > > teachers and support people, the less that needs to be done
> the better.
> > >
> > > Art Hunkins
> > >
> > > ----- Original Message ----- 
> > > From: "Peter Robinson" <pbrobinson at gmail.com>
> > > To: "Art Hunkins" <abhunkin at uncg.edu>; "Felipe Sateler"
> > > <fsateler at gmail.com>
> > > Cc: <csound at lists.bath.ac.uk>; "Sugar devel"
> > > <sugar-devel at lists.sugarlabs.org>
> > > Sent: Sunday, September 06, 2009 5:12 PM
> > > Subject: csound on Fedora 11 and rawhide
> > >
> > >
> > >> Hi All,
> > >>
> > >> I think (with the help of Felipe) and after around a
> million test
> > >> recompiles :-) I've finally fixed the issues with the
> csound python
> > >> bindings on Fedora. The build is now in rawhide and fedora-
> testing for
> > >> Fedora 11 as of today. The build that your after is 5.10.1-
> 12. For me
> > >> at least it seems to work OK on Fedora 11 rawhide.
> PulseAudio is set
> > >> as the default. I would like to know how it looks to
> everyone else.
> > >>
> > >> Cheers,
> > >> Peter
> > >
> > >
> > >
> > > Send bugs reports to this list.
> > > To unsubscribe, send email sympa at lists.bath.ac.uk with body
> "unsubscribe
> > > csound"
> >
> >
> >
> > Send bugs reports to this list.
> > To unsubscribe, send email sympa at lists.bath.ac.uk with body
> "unsubscribe csound"

Dr Victor Lazzarini, Senior Lecturer, Dept. of Music,
National University of Ireland, Maynooth



Send bugs reports to this list.
To unsubscribe, send email sympa at lists.bath.ac.uk with body "unsubscribe 
csound"=