<div dir="ltr"><br><br>Thanks Len some great information here. <br><br>
>Jack won't start lower?<br><br>Yes, Jack just won't start on lower buffer sizes with internal sound. Not really a problem. just for testing. <br><br>>For live work, Guitar effects, soft synths, etc. USB 1.1 at 16bit/48k may<br>
>work just fine<br><br>My experience with USB audio is limited, but USB 1 on mac, for live processing, I have found to have unusable latency.<br><br>I will probably update this computer at some point and convert all my personal recordings to a Linux based system. My main reason for the thinkpad was for gigs and live processing, so I am thinking a USB 2 audio interface is what I'll go for.<br>
<br>I was not aware that Firewire interfaces would be software specific, I assumed that if it connected with jack then any jack compliant software would work? <br><br>Thanks again,<br><br>Saul<br></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On 26 January 2013 15:08, Len Ovens <span dir="ltr"><<a href="mailto:len@ovenwerks.net" target="_blank">len@ovenwerks.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im"><br>
On Sat, January 26, 2013 1:06 am, Saul Rayson wrote:<br>
<br>
> I need an audio interface to work with my thinkpad X60 running Ubuntu<br>
> studio for live processing. At least 2 in 2 out.<br>
><br>
> My main program is SuperCollider and the main issue I for see is latency.<br>
> With the internal sound card the latency 11.6 ms, which of course is very<br>
> noticeable.<br>
<br>
</div>Jack won't start lower? or too many xruns lower? If you are having xruns,<br>
try unloading the kernel module for the wireless network. I was able to<br>
get my netbook to half that in this way. Actually I had troubles much<br>
higher without. Also check that your CPU governor is set to performance<br>
and not ondemand.<br>
<div class="im"><br>
> Would usb 2 be adequate for this or should I go firwire?<br>
<br>
</div>USB2 should be fine. The presonus boxes seem to work well with linux.<br>
Quite honestly, with a portable computer like a laptop, take it to the<br>
music store and try a few. Walk in with a list that are known to work with<br>
Linux and try them. Thats what I do. If it doesn't work out of the box, I<br>
try another.<br>
<br>
For live work, Guitar effects, soft synths, etc. USB 1.1 at 16bit/48k may<br>
work just fine. The ART USB Dual Pre - USB 1.1 for as low as $60 will take<br>
instrument or mic and has better circuitry than your internal card for<br>
sure. These just work, plug and go. For a bit more money they have a tube<br>
pre (single or dual) for a warmer sound with a bit more control and a<br>
limiter. These will still be good for recording too... but for serious<br>
studio work USB2 or firewire will give 24bit digital for more head room.<br>
SO look at your needs. Think about what you will want to try in the next<br>
year or two... however long you think you will use your thinkpad :)<br>
<div class="im"><br>
<br>
> I've also read that in order to use a firewire interface you need a<br>
> real-time Kernel, where Ubuntu studio has a low latency Kernel?<br>
<br>
</div>A number of people on the UbuntuStudio dev team use firewire with the low<br>
latency kernel. That should not be an issue. The real issue is do you have<br>
a FireWire interface or would you have to buy one? If you have one, then<br>
you have the choice of FW or USB2 at similar price. If not then FW will<br>
cost the extra for an interface and you have two things to make sure you<br>
get one that works well with the software.<br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
--<br>
Len Ovens<br>
<a href="http://www.OvenWerks.net" target="_blank">www.OvenWerks.net</a><br>
<br>
</font></span></blockquote></div><br></div>