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LFO Delay like Juno-106 or MC-202

LFO Delay like Juno-106 or MC-202

2000-11-04 by thomas white

Here we go,

I am fuzzy on this issue and I want to clear it up for myself once and for 
all. I would like to have a nice vibrato or filter modulation come rolling 
in about 2 seconds after I hit the key like on a Juno 106 or MC-202 or just 
about any Roland MKS- synth. How exactly do I do this with a modular? Extra 
EG and VCA? Gate/Trigger delay? DADSR? Somebody please give me a patch by 
patch description of how to do this. HELP!!! Thanks,

Thomas White

PS. Would it be OK to use a Microphone cable and connectors to run power 
from one panel to another on two separate SKB cases? Locking cable sounds 
inviting but I am not sure of any deeper drawbacks.
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Re: [motm] LFO Delay like Juno-106 or MC-202

2000-11-04 by Nathan Alan Hunsicker

You could use an LFO routed through a VCA controlled by an EG to
modulate a VCO or VCF. Using the attack time on the EG to vary the time
it takes for the modulation to start. As for XLR connectors, I'd stay
away from them for power for a few reasons, 1) microphone cables are
made to carry small voltages at small currents, I think the wires are
only 24 or 28 gauge, not suitable for running a whole cabinet full of
MOTM. 2) I would never use an audio connector as a power connector, all
you need is some overzealous soundman to "help" you wire up your system,
see an XLR jack, and plug a direct line into it. Most people just
"assume" that an XLR means audio signal not power. If you know anyone
who has the correct crimper, I'd recommend the AMP circular CPC
connectors. They're made for repeat usage, they're non shorting, and
they lock. Bad news if you have to buy the crimper, it's about $400!!
-Nate

thomas white wrote:
Show quoted textHide quoted text
> Here we go,
>
> I am fuzzy on this issue and I want to clear it up for myself once and
> for
> all. I would like to have a nice vibrato or filter modulation come
> rolling
> in about 2 seconds after I hit the key like on a Juno 106 or MC-202 or
> just
> about any Roland MKS- synth. How exactly do I do this with a modular?
> Extra
> EG and VCA? Gate/Trigger delay? DADSR? Somebody please give me a patch
> by
> patch description of how to do this. HELP!!! Thanks,
>
> Thomas White
>
> PS. Would it be OK to use a Microphone cable and connectors to run
> power
> from one panel to another on two separate SKB cases? Locking cable
> sounds
> inviting but I am not sure of any deeper drawbacks.
>
> ________________________________________________________________________
>
> Get Your Private, Free E-mail from MSN Hotmail at
> http://www.hotmail.com.
>
> Share information about yourself, create your own public profile at
> http://profiles.msn.com.
>
>
>                       eGroups Sponsor

>

Re: [motm] LFO Delay like Juno-106 or MC-202

2000-11-04 by ivancu@aol.com

In a message dated 11/4/00 1:36:17 AM, djthomaswhite@... writes:

<< PS. Would it be OK to use a Microphone cable and connectors to run power 
from one panel to another on two separate SKB cases? Locking cable sounds 
inviting but I am not sure of any deeper drawbacks. >>

Use a Neutrik Powercon or Speakon connector for this.  Inexpensive and 
available from your local Mars or Guitar Center type store.

Ivan

Re: [motm] LFO Delay like Juno-106 or MC-202

2000-11-04 by jwbarlow@aol.com

In a message dated 11/4/2000 2:36:16 AM, djthomaswhite@... writes:

> would like to have a nice vibrato or filter modulation come rolling 
>in about 2 seconds after I hit the key like on a Juno 106 or MC-202 or
>just 
>about any Roland MKS- synth. How exactly do I do this with a modular? Extra
>EG and VCA? Gate/Trigger delay? DADSR? Somebody please give me a patch
>by 
>patch description of how to do this. HELP!!! Thanks,


For standard vibrato effects, the LFO is patched to a VCO's frequency input 
(probably the linear input). 

There are a few ways to get delayed vibrato (which in my mind sounds more 
"natural"): the most obvious way (the best way?) is to patch the LFO through 
a VCA first with that output going to the VCO FM input. The VCA is then 
controlled by an EG which will control both the amount of vibrato (via the 
SUSTAIN control) and the way the vibrato happens. In this case, I'd prefer to 
have a DADSR or a GATE/TRIGGER delay to allow a little more control over the 
onset of the vibrato.

I remember someone (Paul perhaps?) providing a cheaper if less "natural" and 
smooth type of delayed vibrato using the MOTM 700 VC ROUTER. Patch the LFO 
output to one of the INPUTs in the 700, patch nothing into the other INPUT. 
Patch the OUTPUT of the 700 to the VCO FM input. Patch an EG to control the 
point at which the 700 switches.

An additional aspect of delayed vibrato would be to use the MOTM 320 SYNC 
INPUT. In fact, you could probably use the other half of the 700 to cause the 
vibrato to start at the same point every time -- I bet that is part of the 
vibrato on many of the older commercial analog instruments.


>PS. Would it be OK to use a Microphone cable and connectors to run power
>from one panel to another on two separate SKB cases? Locking cable sounds
>inviting but I am not sure of any deeper drawbacks.


I wouldn't do this. I think you'd be better off just making up your own 
connector cable with those .156" connectors on each end until you can come up 
with a more permanent solution.

JB

Re: LFO Delay like Juno-106 or MC-202

2000-11-04 by doc pendergast

> 
> PS. Would it be OK to use a Microphone cable and connectors to run 
power 
> from one panel to another on two separate SKB cases? Locking cable 
sounds 
> inviting but I am not sure of any deeper drawbacks.

h3y thomas,
i had the exact same idea last night.  funny... 
 i figured audio cable was not the way to go though.  thanks to 
everyone else for ideas for a better solution...
peace,
doc

Re: true LFO Delay (long!)

2000-11-04 by Dave Bradley

> I am fuzzy on this issue and I want to clear it up for myself once 
and for 
> all. I would like to have a nice vibrato or filter modulation come 
rolling 
> in about 2 seconds after I hit the key like on a Juno 106 or MC-202 
or just 
> about any Roland MKS- synth. How exactly do I do this with a 
modular? 

You CAN do true lfo delay using available MOTM modules, but it's 
somewhat complicated. The preferred way would be LFO through VCA 
controlled by a delayed AR. The delay param controls the delay, and 
attack controls the fade in rate. Since we don't have a gate delay 
module in the MOTM lineup (yet!) you can't do true delay using an 800 
with this patch, just a fade in. 

Here's how you can create true delay, restricting yourself to current 
MOTM modules. It requires 3 800 EGs, a VCA, an LFO, and a 700 router.

You will create a delayed gate out of 2 EGs and the 700. The first EG 
is used just to provide a 5V level. ATTACK = 0, SUSTAIN = 10, RELEASE 
= 0, no GATE or TRIG connected, plug the OUT+ into the IOB jacks of 
the 700. So now if you switch the 700 manually using the SWITCH knob, 
the IOX output will toggle from 0 to 5V. Not particularly useful yet -
we've just created a gate, BUT it's on/off state is voltage 
controlled. 

Now plug EG2 in: GATE to kbd gate, OUT+ to 700 CV IN. Set it for 
ATTACK = 3-7, SUSTAIN = 10, RELEASE = 0. By playing with ATTACK time 
and SWITCH level, you have control over the gate delay. Play your 
keyboard and watch the 700 leds switch to get a visual indicator of 
the delay time.

Now plug EG3 in to create a DADSR: GATE to IOX, OUT+ to (in this 
case) the CV input of the VCA which controls the level of the LFO. 
Set for ATTACK = 3-7, SUSTAIN = 10, RELEASE = 0-3. ATTACK pot now 
controls the fade in rate after the delayed gate fires.

Moe

Re: [motm] LFO Delay like Juno-106 or MC-202

2000-11-04 by Tony Allgood

Hi all,

Although not a true delay. I prefer to keep vibrato under the control of
aftertouch. Routing aftertouch CV to a VCA which controls the LFO
feeding the VCO(s) gives me more control on the actual delay. Of course
you need a keyboard that generates aftertouch, but most midi-CV
convertors do have a A/T output.

The 1974 built Roland SH-2000 uses this method of vibrato control. Very
expressive... shame it doesn't have any pitch levers though.

Regards,

Tony Allgood  Penrith, Cumbria, England

Oakley Modular Synth and TB3030:
www.techrepairs.freeserve.co.uk/projects.htm
My music: www.mp3.com/taklamakan

Re: [motm] LFO Delay like Juno-106 or MC-202

2000-11-04 by J. Larry Hendry

----- Original Message -----
Show quoted textHide quoted text
From: thomas white <djthomaswhite@...>
I would like to have a nice vibrato or filter modulation
come rolling in about 2 seconds after I hit the key like
----------
You could use the vibrato on your MOTM-110 (jumper to clock).  I have not
trie this.  My 110 is, err... on loan.  The vibrato start could be triggered
from the ext clock I believe.  The panel control could be manipulated to
vary the effect.  Ity could be clocked in a variety of fashions,   EG & 700,
others I am sure.
----------
PS. Would it be OK to use a Microphone cable and
connectors to run power from one panel to another
on two separate SKB cases?
-----------
You know this XLR connection was used quite a bit by sound board makers for
separate power supplies.  However, I have always thought it was a bad idea.
I HIGHLY recommend the Neutrik 4 conductor Speak on for this application.

Larry H

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