Real-Time Mode - Orthogonal Devices ER-102 User Manual

Real-time mode

The real-time recording mode is used to capture a live performance as a step
sequence. Timing of CV and gate changes are measured against the clock (af-
ter per-track multiplication) and then re-interpreted as a sequence of steps with
quantized voltages and timing. Real-time recording starts on all armed tracks when
the PUNCH LED is lit and the ER-101 is not paused. The newly recorded steps are
inserted at the current location of the play cursor. In fact, in real-time mode the
play cursor and the record cursor are the same. So if you want to see what you are
recording then put the ER-101 in FOLLOW mode.
The A-1 and A-2 analog inputs are routed to CV-A and CV-B, respectively. The AD-1
input is placed in digital mode and expects a gate signal that goes high for a "note
on" event and goes low for a "note off" event. In other words, the time between two
consecutive rising edges on this gate input determines the duration of the record-
ed step, while the time between a rising edge and a falling edge determines the
recorded step's gate length.
Configurable Option: The unused D-1, D-2 and AD-2 inputs can be configured to
control other aspects while in this mode. See the configuration file on your SD card
for more details.
The CV index that is assigned to the current recording step is determined in the
following manner. Once a new step has started, the ER-102 then waits for approx-
imately half a clock pulse before sampling the A-1 and/or A-2 inputs. This helps
insure that the voltage on these inputs has settled to an accurate value. The value
that is sampled (with 14-bits of resolution) is truncated to the output range of the
ER-101 (0V to 8.192V) and then quantized to the nearest entry in the track's voltage
table.
The re-interpretation of your performance as a step sequence means that glides,
vibrato, or any continuous CV movements will not retain their smooth nature. How-
ever, you can regain some of these smooth movements later by manually enabling
smoothing on the necessary steps. Vibrato-types of modulation are best added later
using the modulation bus of the GROUP section.
TIP: While recording, the live inputs (A-1, A-2 and AD-1) are passed unchanged
to the outputs (CV-A, CV-B, and GATE) of the ER-101 so that you can monitor your
performance in real-time.
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