Specifications

PBM (Physical Behaviour Modelling)
At the heart of the V-Accordion is Roland’s new, proprietary PBM
sound engine and modelling technology. Physical Behaviour Modelling
uses complex algorithms to accurately recreate an acoustic
accordion’s sound characteristics. The result is a faithful simulation of
the actual physical behaviour and expressive nuances of an acoustic
instrument.
Bellows Movement Modelling
PVA (Pressure Variant Amplier)
This function controls the dynamics of each reed sound, based on
the high-resolution bellows pressure sensor. Starting and stopping,
hysteresis threshold, inertia, expression curve, and volume are all
individually programmed to reproduce a true free-reed sound.
PVF (Pressure Variant Filter)
The tone colour of each reed sound is also shaped in real-time by
the dedicated DSP (Digital Signal Processor), responding accurately
to each expressive playing nuance applied by the bellows.
PVP (Pressure Variant Pitch)
The pitch of each simulated reed is varied individually.
As the bellows is pushed or
pulled more forcefully, the sound
becomes fatter and richer, because
each simulated reed exhibits a
“natural” tendency to go out of
tune.
Musette Tuning
Based on extensive research of the
different tuning types used throughout the world the V-Accordion’s
note-by-note micro-tuning feature allows a V-Accordion to
authentically reproduce many different accordion types for various
genres of music.
Off
On
Reed Inertia
BELLOWS PRESSURE
VOLUME
Hysteresis Thresholds Expression Curve
VOLUME
BELLOWS PRESSURE
16’
8’
2’
2/3
Hz
In Tune
BELLOWS PRESSURE
16’
8’
2’
2/3
The Technology
1 | V-Accordion