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Re: [sc-users] [OT] laptop for audio



Thanks a lot to all, 

yeah, James, my idea was Ubuntustudio, btw it comes preinstalled with Dell, this would save me some time and efforts.

At the moment, by looking around, I am getting more and more concerned with sound cards. 
Seen from outside linux, the situation is a real nightmare.
Some hw is clearly supported, some other (well, most) no, some other may work, or not, or partially, depending on a set of variables I can’t understand.
I have a MOTU Ultralite MK IV. It’s not supported, but someone has it working perfectly out from the box, other have glitches.  Well… :)

Best

-a-



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Andrea Valle
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CIRMA - StudiUm
Università degli Studi di Torino
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--> http://www.fonurgia.unito.it/andrea/
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"This is a very complicated case, Maude. You know, a lotta ins, a lotta outs, a lotta what-have-yous." 
(Jeffrey 'The Dude' Lebowski)

On 25 Feb 2019, at 01:28, jamshark70@xxxxxxxxx wrote:

On Sun, Feb 24, 2019 at 11:38 PM <valle@xxxxxxxxxxx> wrote:
I’m thinking about switching to linux, but I’m totally unaware about hardware knowledge.
So, I’d like to know what are your options for real time audio, SC indeed being a strict requirement.

Not a hardware recommendation, but let me suggest Ubuntu Studio (or
other multimedia distro) instead of vanilla Ubuntu.

Ubuntu Studio uses a lowlatency kernel by default, and the team have
already tuned interrupt priorities so that USB audio works
out-of-the-box without JACK xruns. When I was using vanilla Ubuntu +
lowlatency kernel, I could never get the interrupts quite right. With
Ubuntu Studio, I didn't have to touch a thing and it's running
beautifully.

(You don't need a RT kernel. Lowlatency is enough. The vanilla kernel
will probably not run JACK well enough for SC.)

One thing to check for hardware is the wifi card. Consumer laptops
often put wifi and USB interrupts on the same bus -- and third-party
wifi drivers often don't take any care for RT safety, so the wifi
driver can interfere with audio timing. My old laptop had a Broadcomm
card. Ubuntu doesn't have its own Broadcomm driver, so I had to
install a third-party driver, and I had xruns all the time. That
machine was lost in an accident, and the replacement has an Atheros
card, for which Ubuntu ships a driver. Seems a lot better.

hjh

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