Re: [ecasound] visecas install story

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Subject: Re: [ecasound] visecas install story
From: Jan Weil (
Date: Sun Feb 01 2004 - 11:51:29 EET

On Sat, 2004-01-31 at 19:13, Kai Vehmanen wrote:
> Today I tried Visecas for the first time.
> My machine is a mess/mixture of RH5->RH8, and I don't use Gnome at all, so
> the install process was, uhm, not as easy as it could be. But, but, now
> Visecas 0.3.5 is finally installed and running.
> What I had to do was:
> - install visecas-0.3.5
> - trying to run visecas produced errors about missing packages...
> - removed all libglade1 packages (conflicted with glade2 packages)
> - I had already gtk2 installed, so I could skip that
> - installed the following RH8 packages: libbonobo-2.0.0-4.i386.rpm
> GConf2-1.2.1-3.i386.rpm gail-*rpm libgnomecanvas-2.0.2-1.i386.rpm
> ORBit2-2.4.1-1.i386.rpm libart_lgpl-2.3.10-1.i386.rpm
> bonobo-activation-1.0.3-2.i386.rpm libglade2-2.0.0-2.i386.rpm
> libgnomecanvas-devel-2.0.2-1.i386.rpm libglade2-2.0.0-2.i386.rpm
once should have been enough :P

> linc-0.5.2-2.i386.rpm libart_lgpl-devel-2.3.10-1.i386.rpm
> libglade2-devel-2.0.0-2.i386.rpm gnome-libs-devel-
> gnome-libs-

Cool if you want to give GNOME a chance but for Visecas these are far
too many packages.
libglade2 + devel should have sufficed (since gtk2 is already present).
Visecas does not depend on GNOME as a whole but I guess you started with
a package which introduced a lot of dependencies.

> - got the "/ecasound.rb:135:in `command': lost synchronisation to
> ecasound subprocess" error, so I edited the file
> "lib/ruby/site_ruby/1.8/visecas/ecasound.rb" and changed TIMEOUT
> to 60

Hmmm :(
What is your impression, Kai? Which value would have been high enough
for your system?
The longer I look at this problem the more I think that it is due to an
internal problem of Ruby's pipes.
The thing is that I am not able to reproduce this behaviour on my
I tried to do some stress testing but I get rock solid parsing.
I'll assign 60 for the next release then but I feel this should not be.

> Some quick comments:
> - looks very nice! :)
> - I like the feature that visecas accepts all the same arguments
> as ecasound does; this makes switching between ecasound and
> visecas easy

When I started developing Visecas I was intending to visualize an
interactive Ecasound session.
But thinking of all the SuperEcasound feature's I'd like to implement
and especially Ecasound's controllers I feel that this approach does not
make sense.
TBH I already made a branch in CVS for the current version of Visecas.
There will be at least one more release featuring a properties dialog to
control Ecasound's general chainsetup options and a position dialog to
individually set audio objects positions.
But after that I'll probably concentrate on a slightly different concept
(maybe Supecas?).
I hope that eventually Visecas will also benefit from this.
I'd really like to see support for controllers somehow.

Thank you very much for your feedback.


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