Re: [Rosegarden-user] Real-time Linux needed?
If I remember correctly, real-time schedule and high resolution stuff used to be separate code patched to the main-line Linux kernel. They were merged into the main Linux kernel around 2.6.30 (+/- a couple minor revisions, pardon my memory). Those real-time folks took a little time off for one or two minor releases, but then started to work on new real-time patches to the kernel again. For basic usage including audio and Midi, the standard kernel has all the code there already for most of us, no need to apply the current real-time patch. The only thing is there are various options including the 1000Hz clock frequency that Rosegarden checks for, they need to be enabled at compile time (of the kernel). If your default distribution doesn't enable the 1000Hz clock, you may ask around within your distribution circle/forum on how to get that, or how to compile your own. Even with the 1000Hz option enable, you may still need to add couple of lines in your one or two configuration files to allow a particular user-id to use it. Jimmy -- Free Software Download: Index, Search Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev ___ Rosegarden-user mailing list Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user
[Rosegarden-user] Real-time Linux needed?
A 'System Timer Resolution too low' dialog pops up when I click the yellow alert triangle icon in Rosegarden. Entering sudo modprobe snd-rtctimer from terminal did not work (received message FATAL module snd_rtctimer not found). I have read Ubuntu Studio supports better real-time processing than normal Ubuntu so decided to upgrade from Ubuntu 10.10 to Ubuntu Studio using the following from the commandline: 'sudo aptitude update sudo aptitude install ubuntustudio-desktop ubuntustudio-audio ubuntustudio-audio-plugins ubuntustudio-graphics ubuntustudio-video linux-rt' Lots of audio/video applications were installed, but linux-rt was not present, so the netresult = Ubuntu + new audio applications. Googled and found '[ubuntu_studio] Ubuntu Studio 10.10 no RT kernel' http://ubuntuforums.org/showthread.php?t=1602827. We are just beginning using Rosegarden here and have no experience of computer-aided composition and recording, MIDI, synthesizing, sampling etc. What is the effect on Rosegarden of not having real-time? Would it matter for beginners like us? Ken P.S. The PC is an oldish 1.8GHz AMD Athlon with 512MB DRAM that was quite literally gathering dust until I gave it a last chance and installed Ubuntu 10.10 a few days ago. Is this spec too slow for Rosegarden without RT kernel support? What newer computer spec is likely to work? 64-bit OK for Rosegarden? -- Free Software Download: Index, Search Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev ___ Rosegarden-user mailing list Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user
Re: [Rosegarden-user] Real-time Linux needed?
On Thu, Feb 24, 2011 at 7:19 AM, Ken Resander kresan...@yahoo.com wrote: What is the effect on Rosegarden of not having real-time? Would it matter for beginners like us? Ken P.S. The PC is an oldish 1.8GHz AMD Athlon with 512MB DRAM that was quite literally gathering dust until I gave it a last chance and installed Ubuntu 10.10 a few days ago. Is this spec too slow for Rosegarden without RT kernel support? What newer computer spec is likely to work? 64-bit OK for Rosegarden? I'm using Ubuntu Studio 10.10 with no realtime kernel, Rosegarden works fine (along with Jack and other apps I use in conjunction with Rosegarden, like Ardour, xjadeo, etc). Your machine needs more RAM, though, 512MB is pretty tight, you'll be very limited with what you can do with plugins and other programs that Rosegarden may need (like QSynth). This may be apropos to your question also: http://jackaudio.org/linux_rt_config -- Brett W. McCoy -- http://www.electricminstrel.com In the rhythm of music a secret is hidden; If I were to divulge it, it would overturn the world. -- Jelaleddin Rumi -- Free Software Download: Index, Search Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev ___ Rosegarden-user mailing list Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user
Re: [Rosegarden-user] Real-time Linux needed?
There are PPAs also available of you need kernel-rt for Ubuntu, or you can just get the vanilla source and build your own On Thu, Feb 24, 2011 at 1:34 PM, steve conrad steve.x.con...@gmail.com wrote: Artist-X comes with a real time kernel and is based on Ubuntu, if you really want to have Ubuntu and kernel-rt together. -- Free Software Download: Index, Search Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev ___ Rosegarden-user mailing list Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user -- Brett W. McCoy -- http://www.electricminstrel.com In the rhythm of music a secret is hidden; If I were to divulge it, it would overturn the world. -- Jelaleddin Rumi -- Free Software Download: Index, Search Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev ___ Rosegarden-user mailing list Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user
