dumb midi questions

Atom Smasher atom at smasher.org
Mon Jan 26 01:19:13 GMT 2009

On Mon, 26 Jan 2009, simone-www.io-lab.org wrote:

> ...can you solder an smd chip?

if i have to. why?

> On Sun, Jan 25, 2009 at 5:55 AM, Atom Smasher <atom at smasher.org> wrote:
>> brief introduction: i've been playing with hardware synths for ~15 years,
>> and i've been running freeBSD on my desktop for almost that long. i have
>> ideological reasons for not using closed-source OSes.
>> i recently installed ubuntu-studio on a desktop, and it seems like a step
>> in the right direction for integrating my hardware synths with a (mostly)
>> FOSS environment.
>> i've got a very solid understanding of midi in the hardware world, but the
>> software is new to me and i'm not sure where to start. i'm having a hard
>> time finding any recent how-to guides and it seems like a steep learning
>> curve to sort out alsa, dssi, vst, ladspa, jack, etc, and how they all fit
>> in together... if anyone can point me to some current doco on "all that
>> stuff"...?
>> 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?
>> thanks...


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