usb/midi adapter - which ones work well?

Atom Smasher atom at
Mon Jan 26 08:59:24 GMT 2009

On Sun, 25 Jan 2009, Atom Smasher wrote:

> and i recently bought what seems to be the worlds cheapest usb-midi 
> adapter. when i connect it to my pc1600x, i have to add >40uS delay per 
> byte, or else amidi doesn't get to see all of what's coming in. at 
> least, a delay of 40uS/byte lets the computer receive a complete sysex 
> dump (~19K), but i'm still loosing a lot of CC info when i move sliders 
> on the pc1600x (verified with a few different midi monitors). this seems 
> like a problem with the usb-midi adapter having too small a buffer... 
> even using amidi to monitor the input from the usb adapter (pc1600x --> 
> usb adapter), and using the pc1600x just to send control change 
> messages, a lot of it is not getting past the adapter. if i use the usb 
> port on my controller keyboard (bypassing the cheap usb-midi adapter), 
> and turn a knob, EVERYTHING comes through. so, what should i be looking 
> for in a low-end/entry-level usb-midi adapter that can handle large 
> sysex dumps and plays well with linux?

it seems like that didn't get any attention with a subject "dumb midi 
questions", so here it is with a different subject.

so, should i expect the problem, above, to disappear with a less crappy 
usb/midi adapter? which ones are ya'll happy with?



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