102
What’s a NRPN?
NRPN stands for Non-Registered Parameter
Number. It’s a way of allowing higher-reso-
lution control data to be sent and received.
Implementation is not standardized, so each
manufacturer uses different methods. The
NRPN implementation data for Hydrasynth is
available at
.
Send Patch / All Patches
These actions allow you to transmit the sys-ex
data of a patch or all patches to another
Hydrasynth model. Note that doing that
over MIDI requires two MIDI cables. Ideally
both units would be connected to the same
computer via USB and then patches and banks
could flow freely between the two.
Overflow
Two Hydrasynth models can act like one unit
using Overflow mode. To use this feature, start
with the Hydrasynth Deluxe in Single mode.
It’s simple: Connect a MIDI cable from the MIDI
Out of the Hydrasynth Deluxe (the “master”)
to the MIDI In of the other unit (the “slave”).
Next, enable Overflow for both units. Connect
the audio outputs of each unit to your sound
system, set good levels for each, and then:
1. Select a patch on the master: it is sent
via sys-ex and appears on the slave.
2. Play 17 notes on the Hydrasynth Deluxe:
it plays the first 16 voices and the 17th
comes from the slave.
Here are some other things to know about
Overflow mode:
• The two units will play the same sound. If
you want to layer different sounds, disable
Overflow mode.
• When a Mono or Unison patch is selected,
the voices on both units are stacked as a
single instrument.
• Hydrasynth Deluxe must be in Single mode
to use the Overflow feature.
Arp TX
Set this parameter to On if you want
the arpeggiator to transmit note on/off
commands over MIDI / USB. It also toggles the
arpeggiator response to incoming notes. See
The Arpeggiator & MIDI (p. 80)
for more info.
Sync information is sent whether Arp TX is On
or Off.
Pgm Chg TX / RX
These parameters determine whether the Hydrasynth Deluxe will transmit (TX) or receive (RX)
MIDI program change commands.
CV – Pitch Gate: Page 8
These settings are compatible with most modular synthesizer equipment. Please refer to the
specifications of other devices and match those settings on the Hydrasynth Deluxe.
Control knob Function
Range
1
Control Voltage Range [1]
Octave 0-10V, -/+5V
Hz 0-10V
Octave 1.2V
2
Reference note [2]
C-1 to G9
3
Control Voltage Offset
-99 cents to +99 cents
4
Control Voltage Source
Keyboard, Theremin
5
Gate Type
V-trig, S-trig
6
Gate Volt
3V, 5V, 10V
[1] Octave = Volt per octave, Hz = Hz/Volt
[2] 1V reference note for Hz/V, or lowest V reference note for V/Oct.