On Fri, May 2, 2008 at 2:01 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Philipp, > > It is not so easy. First of all, depending of the sound card chipset, > some will start with a period at 2, some at 3. As there is no database > about that point (I can't find one), anyone will have to test. It is a > good idea imho to create a wiki page with the tested setting of the user > community, but I don't know if it is easy to motivate people to fill that. > > Second point, it is not compulsory to have a real time kernell in order > to start Jack. If well set up with a long latency (more than 60ms), it > can starts and works very well too. > > Third point, the frames is the latest point to configure. I mean that > first, one has to set up the sample frequency he wants to work with > (44,1, 48, ...), then, try different period values (most of the time 2 > or 3). And then, when RT is activated, it is possible to decrease the > frame value, so it will decrease the latency time. Basic sound cards > (like integrated chipsets) will not work well at latency below 20ms. And > some more professional sound chipset (M-Audio envy24, RME hdsp, etc...) > will start without matter at a period of 32 or 64, giving very low > latency around 2 or 3 ms at 48khz. > > Depending the use, the latency has to be different. For example, if the > aim of the session is only to record a live performance, one can work > with a latency around 60ms to be sure of the quality of the result. If > the aim is to work on multi audio tracks with re-recording of musicians, > the lowest the latency is, the better it is for the musicians. And if > one wants to use midi, he will have to work around 8 ms or 10 ms to > avoid midi synchro problems. > > So it means that people will have to test a bit, and configure depending > their sound card, and their need. And once it is well set up, it is > possible to save profiles for several uses and sound cards. Then, using > Patchage is not very difficult to explain. > > A few month ago, I tried to write something on the ubuntu help wiki. The > problem is how to include on a ubuntu wiki page some screen capture ? > IMHO, it will be hard to write a good stuff for beginners on Qjackctl > without any screen capture. If you know how to do that, I would be glad > to help you. > > Toine > > > > [EMAIL PROTECTED] a écrit : > > > > Is the leader of the documentation team Murat Güneş? And if so, is he > > still not available? > > > > I feel the need to write a quick jack starter guide for new users, > > which covers the absolute basics to work with jack. But I need some > > advice, mainly because there are at least 3 articles that are similar, > > but don't really do the trick. Additionally, I never edited a wiki > > before. > > > > The guide, as I imagine it, in short words: > > > > 1. Make sure you have the rt-kernel > > > > 2. Make the appropriate settings in ubuntu studio controls > > > > 3. Make the necessary, stable settings in qjackctl, something like: > > frames 1024, periods3, rt > > > > 4. How to make basic connections using qjackctl, patchage > > > > > > Similar Articles: > > https://help.ubuntu.com/community/UbuntuStudio/GettingStarted > > https://help.ubuntu.com/community/HowToJACKConfiguration > > https://help.ubuntu.com/community/HowToQjackCtlConnections > > > > > > Advice appreciated. > > > > Best Regards, > > Philipp > > > >
I also offer all of my help since this type of documentation is very needed. Luis de Bethencourt > > -- > Ubuntu-Studio-devel mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel > -- Luis de Bethencourt Guimerá luisbg <[EMAIL PROTECTED]> GPG: B0ED1326 -- Ubuntu-Studio-devel mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
