9 Dec
2008
9 Dec
'08
11:45 p.m.
On Monday 08 December 2008 00:20:36 Simon Williams wrote:
Say I assign a synth pad and a piano sound to channel
1. Then I try to
change the volume of the synth pad (using MIDI control 7), using the
knobs on either the X50, or the MK (it doesn't matter which). What I
find is that the piano, being on the same channel, also has its volume
adjusted. Sure, I can use the MIDI filter feature on the X50 to say that
the piano ignores volume changes, but then I can't fade out the piano if
I want to.
Anyone got any suggestions on how to overcome this? Currently the only
way I can think of is to send all MIDI events via my laptop and get it
to duplicate the note on/off events and send them to all the relevant
channels. Is this my only option? Surely the X50 has a better way than
this?
Well, that's what MIDI channels are for :) I very much doubt that the X50
(or almost any other synth for that matter) can be configured so that one
sound responds to note events on one channel, and controller events on
another.
I don't know the MK-461C. Does it allow you to split the keyboard into
multiple (possibly overlapping) zones that send on different channels? If
not, using the laptop to route/duplicate MIDI events is probably your best
bet.
Also, how well would MIDI cope with this? I have heard
people mention
that MIDI doesn't work so well if you send lots of data down it (like 8
duplicates of the each note on/off message?).
Even if your equipment can handle it, it's probably not a good idea to send
so many events for each note played. MIDI has a very low bandwidth
(31.25 kbit/s, assuming a standard MIDI cable with DIN connectors).
I may be oversimplifying a bit, but as a rule of thumb you can send little
more than one MIDI event per millisecond.
Let's say you play a chord with 5 notes, and for each note 8 events get
sent. Then the last event will arrive about 30 ms later than the first.
It'll be easily noticable that the notes don't sound at the same time,
which is even worse than latency alone.
If this is my only option, does anyone know of any
better MIDI
router/mixer software? Currently the only one I know of is
soundfontcombi, but it's not very flexible, and doesn't work so well
with JACK's auto patchbay connections.
If flexibility is what you want, and you can live without a GUI, take a look
at mididings (http://das.nasophon.de/mididings/). I guess it has a pretty
steep learning curve, especially if you're not a programmer, but I'm sure
it can do everything you need (and also a few things no one will ever
need ;))
Cheers,
Dominic