<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1437937057859_11459"><span></span></div><br> <blockquote id="yui_3_16_0_1_1437937057859_11463" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div id="yui_3_16_0_1_1437937057859_11462" style="font-family: HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1437937057859_11461" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1437937057859_11460" dir="ltr"> <hr id="yui_3_16_0_1_1437937057859_11465" size="1"> <font id="yui_3_16_0_1_1437937057859_11464" face="Arial" size="2"> <b><span style="font-weight:bold;">De :</span></b> Brent Busby <brent@keycorner.org><br> <b><span style="font-weight: bold;">À :</span></b> linux-audio-user@lists.linuxaudio.org <br> <b><span style="font-weight: bold;">Envoyé le :</span></b> Dimanche 26 juillet 2015 18h46<br> <b id="yui_3_16_0_1_1437937057859_11467"><span id="yui_3_16_0_1_1437937057859_11466" style="font-weight: bold;">Objet :</span></b> Re: [LAU] outfitting a computer for songwriting in linux?<br> </font> </div> <div id="yui_3_16_0_1_1437937057859_11468" class="y_msg_container"><br clear="none"><br clear="none">USB is by far the most convenient way to get Midi connectivity on a<br clear="none"><div>modern Linux PC. <br></div><div><br></div><div id="yui_3_16_0_1_1437937057859_11776"><br></div><div dir="ltr" id="yui_3_16_0_1_1437937057859_11774">>>>> MIDI connector is DEFINITLY the best way to use MIDI!!!<br></div><br clear="none"><br clear="none">Now, it looks like USB recording interfaces are all we have, so we don't<br clear="none"><div>have a choice. That ain't good at all.</div><div><br></div><div id="yui_3_16_0_1_1437937057859_12027"><br></div><div id="yui_3_16_0_1_1437937057859_12028">>>>> iS IT A POSSIBILITY THAT ALL OF US aLWAYS HAVE A CHOICE</div><div id="yui_3_16_0_1_1437937057859_12134" dir="ltr">: NOT BUY WHAT WE DON'T WANT????<br></div><br clear="none">> The computer side: Use an Intel CPU. The person setting it up should<br clear="none">> be willing to find out which of the USB ports on the computer should<br clear="none">> be used for this (have their own irq) and which usb ports should<br clear="none">> therefore never be used for anything else (often two usb ports are on<br clear="none"><div id="yui_3_16_0_1_1437937057859_12188">> an internal hub).</div><div id="yui_3_16_0_1_1437937057859_12355"><br></div><div id="yui_3_16_0_1_1437937057859_12356">>>>> Sorry for all these capital letters before, you must use RTIRQ script</div><div id="yui_3_16_0_1_1437937057859_12357" dir="ltr">to achieve this behaviour of IRQ (important point)<br></div><div id="yui_3_16_0_1_1437937057859_12359" dir="ltr"><br></div><div id="yui_3_16_0_1_1437937057859_12461" dir="ltr"><br clear="none"></div>That may or may not be necessary on recent kernels. I'm running a<br clear="none">regular Linus kernel with full pre-emption turned on, and I seldom get<br clear="none">an xrun. I'd only go for an RT kernel if your system isn't behaving<br clear="none"><div id="yui_3_16_0_1_1437937057859_12462">without it.</div><div><br></div><div id="yui_3_16_0_1_1437937057859_12515">>>>> As said by Brent, RT kernel is not needed anymore, RTIRQ script</div><div dir="ltr" id="yui_3_16_0_1_1437937057859_12679">works with regular ones..<br></div><br clear="none">-- <br clear="none">+ Brent A. Busby + "We've all heard that a million monkeys<br clear="none">+ Sr. UNIX Systems Admin + banging on a million typewriters will<br clear="none">+ University of Chicago + eventually reproduce the entire works of<br clear="none">+ James Franck Institute + Shakespeare. Now, thanks to the Internet,<br clear="none"><div id="yui_3_16_0_1_1437937057859_12680">+ Materials Research Ctr + we know this is not true." -Robert Wilensky</div><div><br></div><div id="yui_3_16_0_1_1437937057859_12916">>>>>> Some of us have heard about the 100th monkey, some of us</div><div id="yui_3_16_0_1_1437937057859_12850">SEARCH him!!! PEACE<br></div><div class="qtdSeparateBR"><br><br></div><div class="yqt9538860419" id="yqtfd70975"><br></div></div> </div> </div> </blockquote> </div></body></html>