Settings Glossary
9
First MIDI Channel
First MIDI Channel controls what channel or channels MIDI notes are being sent on
from the Jamstik. In Multi-Channel Mode - this will change the channel of the lowest
string. For example, if First MIDI Channel is set to 9, MIDI will be sent on channels: 9,
10, 11, 12, 13, and 14. In Single Channel Mode - this will change the channel that all
MIDI is sent on. In MPE Mode - this value cannot be changed in order to follow the
MPE standard.
Pitch Bend Send
Pitch Bend Send controls whether the Jamstik sends pitch bend data. In single-chan-
nel and multi-channel modes, pitch bend is sent through traditional MIDI pitch bend
methods. In MPE Mode, pitch bend is sent through MPE-specific protocols.
Pitch Bend Range
Pitch Bend Range changes the values that the Jamstik sends for pitch bend. It is vital
for best performance that this value matches the value that your third-party device is
looking for. If it does not, bending strings will result in notes that do not match the
pitch of what you are playing.
MPE software/hardware should automatically default to +/- 48. By default, changing
MIDI Modes to MPE will change your Jamstik's pitch bend range to +/- 48. However, if
you encounter an MPE program with a different pitch bend range (such as +/- 24) you
can change your pitch bend range and stay in MPE mode.
Most non-MPE MIDI software/hardware, default to a pitch bend range of +/-2. If you
want to record or play with a piece of software and bend more than 2 semitones (2
frets worth) on the Jamstik, you will need to set a higher pitch bend range in Jamstik
devices settings and change your third-party software/hardware pitch bend range to
match. Without matching pitch bend ranges, bending strings will result in notes that
are not accurate to the pitch of what is being played on the guitar.
String Envelope Send
String Envelope Send sends amplitude/aftertouch information from the Jamstik to
other MIDI Devices. The pickups in the Jamstik detect the amplitude of a note over
time. String Envelope Send uses that time-decreasing value and sends it through
MIDI. This can be used similarly to how Channel Pressure, Press, or Aftertouch is
used on other MIDI devices. It can also be mapped to volume or other CC parameters
in String Envelope Mapping to transform MIDI instruments to follow the dynamics of
your guitar by matching the volume/amplitude of your strings as all times.
If you are experiencing "glitching" noises or rapid fluctuations in third-party synthesiz-
ers it may be a result of the synthesizer reading string envelope messages from
multiple strings at the same time and applying it to the same control. Many default
instruments in Logic Pro have this issue and this can be resolved by either mapping
string envelope to a value that the synthesizer accepts on multiple strings or by
turning string envelope send off while using these synthesizers.
