Drolo Stretch Weaver User manual

drolo
The Stretch Weaver has 2 separate channels that can interact with each
other in various ways, mostly through sidechaining where a channel can
trigger an action that will be applied to the other channel.
When you plug in only one source on the right channel, it will internally
be routed to the left channel, so that you can use most of the modes in
interesting ways even if only one input is being used.
wet/dry:
Controls the level of the wet and dry signals for each channel indivi-
dually. Unity gain is around noon position.
left/right:
Adjusts the threshold at which the respective channel will trigger the
effect applied to the other channel. (except in weave mode, where right
adjusts grain length).
control knob
Its function will depend on the selected mode.
mix L+R ; sep L/R:
in the sep position, each channel is separate.
in mix mode, both of the wet signals are mixed together and routed
equally to both L and R outputs.
bypass switch:
If you give it a short tap (<0.3sec) it acts in latching mode.
If you press it for more than 0.3sec you are in momentary mode.
It’s a buffered bypass.
STRETCH
WEAVER
left
drywet
9Vexp
wetdry
ctrl right
mix L+R
sep L/R
L R
ringmod
stretch
weave
repeat
tape
pitch
glide
gate
bypass switch
Left channel
DC Power
Supply
TRS
Expression
Input
Right channel
InInOut Out

stretch
weave
repeat
tape
pitch
glide
gate
ringmod
left knob
left threshold
left threshold
left threshold
left threshold
left threshold
left threshold
left threshold
left threshold
ctrl knob
amount of
time stretching
amount of
time stretching
repeat length
tape speed
(1/4 1/2 X2 X4)
pitch shift from
-1oct to +1oct
glide speed
gate speed
mix of both channels
right knob
right threshold
size of
stretched grains
right threshold
right threshold
right threshold
right threshold
right threshold
right threshold
description
Each channel can trigger the other to get time stretched. The louder
the signal, the longer the stretch. The ctrl knob adjusts the max time
stretching overall available.
Only the right channel is being stretched but the left knob will allow
some of the left audio to get weaved in and processed on the left.
Each channel can trigger the other to loop the last recorded sample.
Each channel can change the speed at which the other channel is
being played back.
Each channel can change the pitch of the other.
Each channel can trigger the other channel to glide from a very low,
almost inaudible pitch up to unison.
Each channel goes through a gate that only opens when the other
channel triggers it.
Each channel can ring modulate the other. When you turn up the ctrl
knob the two incoming audio channels will start to get mixed together
before being routed to both ringmod processes, so that each channel
will increasingly be able to modulate itself.
Description of the 8 modes:

exp input:
Can be used to externally take over the ctrl knob’s function. When an
expression pedal is connected, the the control knob can be used to define
the max setting of the expression pedal.
Most commercially available expression pedals using a TRS plug should
work. The value is not really critical, although I would not go lower than
10k.
Some examples are the Moog EP-2, Roland EV-5, and M-Audio EX-P.
You need to use 1/4 inch TRS (Stereo) plugs and cables. NO MONO PLUGS
OR CABLES! These will short out the voltage regulators inside the pedal
and damage it.
Here is how such a TRS plug looks like.
If you really know what you are doing you can actually use a control
voltage instead of a resistance based controller. But you need to consider
the connections and never exceed 3.3V. If you do you will damage the
pedal. Use a TRS plug. No Mono plug. TRS, not MONO :)
If you have any doubt when deciding what to connect to the expression
input please send me an email and I will verify that everything is safe.
Power Supply:
The power supply needs to be 9V/120mA center negative like the com-
monly used guitar pedal power supplies:
Make sure the polarity of your power supply is correct or it will damage
the pedal. Do NOT run at higher voltages.
As the pedal uses a digital processor operating at high frequencies, you
may hear some noise if you use it together on the same power supply
with other pedals (daisy chained) even when it is bypassed. The noise
can bleed through the power supply into the other pedal’s signal. This
is normal for such devices. It might not be the case in your particular
setup but if you notice that, I would suggest using an isolated power
supply.
Notes:
- When connecting different equipment, you might run into issues
with hum caused by a ground loop. If that’s case you may need to
use a ground loop isolator (usually consisting of transformers)
- If the wet and dry signal of a channel are very similar (for ex. when
the effect is not being triggered) you will hear some phasing between
the 2 signals. This is caused by the processed signal being slightly
phase shifted through the DSP compared to the analog dry signal. I
could not really find a practical way to avoid this so I decided to just
live with it, hope you will too.
Thanks !
David
https://www.davidrolo.com
[e-mail]
- tip: controlling pin
- ring: 3.3V supply voltage
- sleeve : ground