linuxaudio.org

On Sat, 2011-05-21 at 18:28 +0200, Johannes Kroll wrote:

quoted text
> On Sat, 21 May 2011 16:56:04 +0200

> Ralf  wrote:

>

> > On Sat, 2011-05-21 at 22:10 +0800, Ricardo Wurmus wrote:

> > > If you cannot keep your Envy24 card for MIDI I/O, you might want to check out

> > > the ESI MIDIMATE II. It's a minimal USB MIDI interface (it's really

> > > just a cable,

> > > no box) which works very well in my setup. This could open up a few more

> > > alternatives for you, in case you decide on a device that would

> > > require you to remove

> > > the Envy24 card.

> >

> > I've got 2 PCI slots and two Envy24 PCI cards. I guess that most other

> > PCI audio cards ship with a MIDI interface too, but I'm not sure if the

> > MIDI jitter will fit to my needs. Fortunately Jack2 from svn (jackd

> > --sync -Xalsarawmidi -dalsa ...) + my Envy24 cards do fit to my needs

> > regarding to MIDI jitter, but audio doesn't ;). I do have a Swissonic

> > USB device, but I avoid to use any USB device when making music, perhaps

> > I'm wooed by fad ;), I even disable USB card reader by my

> > session-handling-scripts (sudo killall -9 -w pcscd ;). No USB mouse,

> > keyboard or printer etc. here. To be honset, I didn't tested zthe USB

> > MIDI with current Jack2.

>

> I can see how the packet-based nature of USB could create jitter when

> using a USB<->MIDI device. But how could some unrelated device like a

> card reader create MIDI jitter?

Perhaps I'm wooed by fad ;), anyway, I read about using PS2 mouse and

keyboard should be better than using USB mouse and keyboard, perhaps to

shared IRQ issues or something similar. USB might be an issue?
> On the topic of sound cards: can anyone recommend a cheap external USB

quoted text
> sound card with many separate outputs (8 would be nice) and good Linux

> driver support? Professional-level sound quality isn't paramount, just

> lots of outputs. :)

Did you think of making several equal Envy24 cards (30,-€ at Ebay) one

virtual card? I didn't do it with my cards, but I guess this should

work, resp. I guess you're searching for USB, because you're using a

laptop? I guess there're Envy24 USB devices too and they are very cheap,

but full duplex etc..
Ralf
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