User Manual

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MIDI: Page 6
Control with... Function Settings Description
Knob 1 NRPN transmit On, O See website for implementation chart
Knob 2 NRPN receive On, O See website for implementation chart
Button 3 Send Patch (action) Sends sys-ex of the current patch via MIDI / USB
Button 4 Send All Patches (action) Sends sys-ex of all patches and banks via
MIDI / USB
Knob 5 Overow [1] O, On Connect two Hydrasynths for 16-voice
functionality
Knob 6 Arp TX [1] On, O Send Arp note on/o messages via MIDI / USB
Knob 7 Pgm Chg TX On, O Send MIDI Program Change upon patch
selection
Knob 8 Pgm Chg RX On, O Receive MIDI Program Change commands
[1]The Arp TX setting has no eect when Overow is set to On. Overow must be set to O to
transmit the arpeggiator notes.
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 dierent methods. The
NRPN implementation data for Hydrasynth is
available at AshunSoundMachines.com.
Send Patch / All Patches
These actions allow you to transmit the sys-ex
data of a patch or all patches to any sys-ex
librarian.
You can also send those items to another
Hydrasynth. 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
ow freely between the two.
Overow
Two Hydrasynths can act like a single unit
using Overow mode. It’s simple: Connect a
MIDI cable from the MIDI Out of one unit (the
“master”) to the MIDI In of the other unit (the
“slave”). Next, enable Overow 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 9 notes on the master: the rst 8
voices come from the master; the ninth
comes from the slave.
Here are some other things to know about
Overow mode:
• The two units will play the same sound. If
you want to layer dierent sounds, disable
Overow mode.
• When a Mono or Unison patch is selected,
the voices on both units are stacked as a
single instrument.
Arp TX
Set this parameter to On if you want the
Arpeggiator to transmit note on / note o
commands over MIDI or USB. Sync information
will be sent whether Arp TX is On or O.
Pgm Chg TX / RX
These parameters determine whether the
Hydrasynth will transmit (TX) or receive (RX)
MIDI program change commands.