Hi, Qui, 2009-11-12 às 08:03 +1100, Luke Yelavich escreveu: > On Thu, Nov 12, 2009 at 03:19:11AM EST, Rui Batista wrote: > > Hi, > > > > This could be my crazyest idea ever but I'd like to propose it and know > > the pros and cons of it. > > > > Since orca would enevitably switch to speech-dispatcher for it's speech > > output and speech-dispatcher audio code, at least for pulseaudio, is a > > bit bad, how about switching to gstreamer for outputing audio? I don't > > know if gstreamer is suitable to such high real-time requirements but at > > least most of the audio stuff is already done... And implementing some > > king of recording speech and so one is trivial. > > > > What do you all think? Sorry if it is stuppid... > > Its not a stupid idea at all, however there are a coupel of reasons why its > probably not worth exploring, at least from my point of view. > 1. It introduces a lot more external dependencies to speech-dispatcher. Sure > one doesn't have to build gstreamer support, however if a distro wants to > satisfy two sets of users, those whowant a minimalist embedded system, and a > desktop usage system with the one package, this makes things complicated, to > the point where they would likely not build gstreamer support in the first > place.
Maby you are right, I don't know how complicated it would be to get all that dependencies configuration on the build system of speech-dispatcher, it is already a bit hard to handle with all that code... But is doable if needed I think > 2. The pulseaudio problems are fixable, it just requires a bit of work to > re-adjust the buffering metrics used in the speech synthesizer drivers, and > the pulseaudio output code itself. Basically it comes down to dynamically > re-adjusting buffers according to what pulseaudio says its doing for > buffering. So I think its easier to fix code already written, then to write > new output code from scratch, which may take time to get to the point where > it runs as well as other output code. > I looked at the pulse output code, but is very complicated for me right now, don't know very much about pulseaudio internals to understand all that calls and buffer handling... > I wouldn't be against someone writing a patch to support gstreamer, and I'd > be happy to test it, however I don't think its a good use of time at this > point. Such time in my opinion, is better spent helping with issues elsewhere > in either speech-dispatcher, or Linux accessibility. > You're right. I would right the gstreamer support if needed but if there are other things more important I can also look at that. Besides pulseaudio output is there anything you think it would be good to take a llook at? 10.04 LTS is comming and I'd like to contribute a bit to the OS I'm using all the time :) regards, Rui Batista > Luke > _______________________________________________ > gnome-accessibility-list mailing list > gnome-accessibility-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list Rui Batista E-mail/googletalk: ruiandrebatista (at) gmail (dot) com MSN/WLM: ruiandrebatista (at) hotmail (dot) com (don't send mail to this on) Skype: ruiandrebatista twitter: http://twitter.com/ragb weblog: http://outputstream.wordpress.com _______________________________________________ gnome-accessibility-list mailing list gnome-accessibility-list@gnome.org http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list
