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Re: [xl7] multiple trigger - MIDI/Analog

2002-12-09 by drK

emulating classic analog monophonic keyboard triggering is somewhat
problematic for a ROMpler because each new note can potentially result in a
new sample 9from the multisample) being needed.  So I believe the
"mechanical" sound you are hearing is just that, restarting samples.
Unfortunately there is not much that can be done directly about this.

You very correct about the lack of flexibility with many current generation
instruments because they do not have separate gate and pitch controls.

One of the disappointments in Emu's "patch cord modular" control scheme is a
general lack of being able to separate envelope triggers from MIDI note
events.  Only the auxiliary envelope offers a trigger input as a modulation
destination and it still always triggers when a MIDI note is received.

You can though do some "CV modulation" like effects because you can route
any of the internal modulation sources to pitch.  The special pattern LFOs
really show what is possible with this because you can set up little
arpeggios and mini-sequences using those and or the various tempo clocks in
combination to generate note-like changes in pitch all the while the
envelopes and the base pitch are controlled from MIDI notes (pads or
external keyboards for example).  Certainly worth exploring for some classic
modular synth-like sequences.

You also can route one or more MIDI CC values to control pitch directly.
This would allow you, for example to use MIDI note events as a type of gate
signal (normally sending at the same pitch) and the CC's could be separately
sequenced as a substitute for CV values.  You can get some pretty convincing
analog sequencer patterns going with this approach and even use some of the
available step/analog sequencer products to do the actual sequencing.  One
possible problem is that if you use a wide range of pitch change from the
root key (the one you play for triggers) you will be pitch shifting the
sample into a range it is not normally used so the timbre may change
noticeably.  Also the default pitch sensitivity in the patch cord routing
makes for very limited pitch control range.  You will need to use the Gain4X
and or multiple patch cords with the same routes to increase the control
range to cover one or more octaves.  So as a use it is best to restrict each
layer to a limit of about an octave or so of pitch.


drk

www.delora.com/music
www.mp3.com/zdrk
drk.iuma.com



On 12/9/02 10:49 AM, "pocketd@..." <pocketd@...> wrote:

> Hi,
> 
> I just checked that solo mode ,íf you use multiple trigger, the envelopes
> retrigger again, the XX-7
> acts as a monophon instrument, and it sounds more mechanical...
> Do anyone use the other solo mode keyboard algorithms?
> 
> 
> The main difference between analog and digital in my opinion is the fact,
> that you have to control
> sources (not the right word, just my english), the one in modular systems
> called CV, the other
> gate.
> MIDI just have one called Gate.
> For example a 303 you can use CV to control the Pitch (Keyboard), now you
> can use Gate to 
> retrigger the envelopes f.example.
> I think that´s the typical sound of the 303 sequences. I thought to do that
> with arpeggios, but I
> can`t find a real way to simulate that, I think that´s a limit at MIDI.
> 
> I just read an excellent book, it´s german issue, don`t know if U can get in
> english:
> 
> http://www.amazon.de/exec/obidos/ASIN/3932275063/qid=1039448778/sr=2-3/ref=sr_
> 2_3_3/0
> 28-3179857-7882104
> 
> cy,
> Christoph
>

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