On Tue, Aug 12, 2008 at 01:55:18AM +0300, Alexey Suslikov wrote:
i've never used such device, but will try to provide useful
information.
- by midi controller, you mean an interface to the standard MIDI
UARTs with a 5-pin DIN ports, right?
- do you need the card to be external because it's easier to
manipulate or you have other reasons?
If you wan't the card to be trully external, the only option on
openbsd is any class-compliant USB device. I've an m-audio
mobilepre uaudio(4) device and an 2in/2out edirol um-2 umidi(4)
interface; they are really nice. Note that if the card is poorly
designed, the usb connection may introduce noise anyway.
There are (internal) PCI cards with _external_ rackable breakout
box (ex: m-audio delta 1010) which are very good. Properly
designed PCI cards can have very good accuracy. There're also
poorly designed cards having bad quality.
There are also excellent bare PCI cards without breakout box.
They require good cables and must be properly plugged though.
- why do you need the audio(4) and midi(4) device to be on the same
card? they are logically (and physically) independent. IMO the
only advantage of having them on the same card is to have fewer
cables.
in the USB case, i believe that it's better to have separate
uaudio(4) and umidi(4) cards. It's to avoid cards with an USB hub
and two separate devices inside.
