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ManualsBrandsSonuus ManualsMusical InstrumentsI2M musicport - MIDI CONVERTER AND Hi-Z USB AUDIO INTERFACE

i2M musicport

Desktop Editor Software Manual

tune with the i2M musicport, it is essential that the pitch-bend sensitivity on the MIDI

instrument matches the pitch-bend range set on the i2M musicport.

Although there is no standard value of pitch-bend sensitivity, the most common setting is

2 semitones, this means that pitch-bend messages can bend a note up or down by 2

semitones. This is also the default setting of the i2M musicport. However, it is often

desirable to set a larger range such as 12 or 24 semitones (1 or 2 octaves, respectively),

for example to allow long pitch changes when using a guitar tremolo, a theremin, or

trombone.

To make setting pitch-bend sensitivity simpler, many

MIDI instruments support the “Pitch-

bend sensitivity RPN” message (RPN = Registered Parameter Number). By default,

whenever the pitch-bend range of the i2M musicport changes, this RPN message will be

sent on all active zones to allow the

MIDI instrument to configure itself to match the

current pitch-bend range setting.

If you prefer for this RPN message not to be sent, it can be disabled by turning off the

send PB sensitivity RPN option.

NOTE:

Not all MIDI instruments respond to this RPN message, so you may still have to

configure the pitch-bend sensitivity manually.

Pitch-Bend Controller

Pitch-bend is sent using the dedicated pitch-bend MIDI controller. However, it is possible to

also send this on another

MIDI controller so that pitch-bend can be used to control other

parameters as well as, or instead of, pitch-bend. See “Pitch-bend Mode” on page 11.

pitch-bend controller lets you select which controller(s) will be used when a MIDI zone

is configured to use this feature. The data can be sent as 14-bit (

MSB and LSB, using two

controllers) for maximum precision or as 7-bit (

MSB only, using one controller).

Power Save

The i2M musicport has a glowing LED indicator on the front to show status. This doesn’t

consume much power (< 20 mA), but sometimes you may want to minimise power

consumption, for example if you are using a small battery-powered computer.

Alternatively, you may be working in a dark environment where the

LED could be

distracting.

Enabling the power save option will turn off the

LED indicator. If any change of state

needs to be shown, for example when changing mode or when the signal clips, the

LED

will illuminate briefly to show the new state.

Top Tip: When you first connect a soft synth to the i2M musicport

MIDI

output,

it may not be set to use the correct pitch-bend sensitivity. To send the

RPN message to configure this, simply press the

mode

button briefly

to change Operating Mode, then press it again to return to the original

state. The act of changing Operating Mode will send the Pitch-Bend

Sensitivity RPN message to the appropriate

MIDI

channels.