User guide
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 22
ProKeys Sono 88 User Guide
Recording MIDI and triggering the internal sounds of ProKeys Sono
In this scenario, ProKeys Sono is used to record to a MIDI track within the computer’s sequencing software. The MIDI data is 
recorded, simultaneously passed through the software, and routed back to the “ProKeys Sono Voices” 
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 MIDI output port (this 
port connects to the sound engine of ProKeys Sono). Audio is then generated by the built-in sound engine of ProKeys Sono 
and sent to powered monitors through the main outputs. 
➜  IMPORTANT: Built-in ProKeys Sono sounds can also be recorded as audio to an audio track within your recording 
software. By default, sounds generated by the built-in sound engine of ProKeys Sono are merged into audio input 
channels one and two, mixing them with input signals from the Microphone, Instrument, and Aux inputs. The mixed 
signal can be recorded by your recording software. If you do not wish to send the audio signal created by playing 
the built-in ProKeys Sono sounds to your software audio inputs, this can be accomplished by toggling the USB 
Record switch in Edit mode. Additional information on this can be found in the “USB Record Key” portion of the 
“Advanced ProKeys Sono Functions in Edit Mode” chapter of this User Guide.
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 The order and naming of the MIDI ports may vary slightly depending on your operating system and sequencing 
application. If ProKeys Sono is used as a class-compliant device under Windows XP, its output ports will appear as “USB 
Audio Device” and “USB Audio Device [2].”
Note: Most MIDI recording 
applications allow incoming 
MIDI signals to be recorded and 
simultaneously passed through to 
externally connected MIDI devices. 
If your software is configured to do 
this and you are working with the 
built-in voices of ProKeys Sono, 
sounds will be triggered in real-time 
through the recording software. 
However, by default ProKeys Sono 
also triggers its built-in sounds 
directly when playing the keys on 
the keyboard. This means that you 
may hear every note twice: Once 
since the sounds are triggered 
locally from the ProKeys Sono 
keyboard and a second time 
because of MIDI signals returning 
to ProKeys Sono from the recording 
application. 
To prevent notes from being 
triggered twice, configure ProKeys 
Sono to operate in Local Off mode. 
See page 37 for more information 
on how to do this. 










