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Essentially, the OB-12 consists of five main sections:
The OB-12 has maximum polyphony of 12 notes, meaning that it is able to produce a maximum
of 12 notes simultaneously. If the control section sends data for a larger number of notes, the last
notes received by the sound generation section will take priority, while the first ones will be gradually
deactivated as subsequent notes are received. Remember this during your performances.
You can use this section to add four effects (which can all be used indiscriminately) to the signal
sent by the sound generation section . These effects, all typical of the sound of the best synthesizers,
are Overdrive (to add distortion), Chorus (to add space to the sound), Delay (echoes or delays on
the original sound) and Reverb (reverberation of the sound).
This section allows you to make use of a totally programmable equalizer. The main feature of the
OB-12 equalizer is that it can be configured in parametric or graphic mode. Using the graphic
equalizer, you can regulate the high and low frequencies and medium frequency bands which
can be set with the trigger frequency, band width and enhancement/attenuation value of your
choice. The graphic equalizer allows you to work on five preset frequency bands.
This section allows you to record a keyboard performance (Phrase Recorder) or the movements
carried out on the panel controls (Motion Recorder) in the form of MIDI data. During playback, the
sequencer section will send the MIDI data to the sound generation section , which will generate
the sounds. The MIDI data can also be sent during playback to remote MIDI units, by means of
the [MIDI OUT] connector, allowing the sound to be generated by means of these units.
The control section consists of the velocity and Aftertouch
sensitive 49-key keyboard and the controls on the panel.
If the OB-12 is piloted by a Master Keyboard (or by another
MIDI controller), the control section is also assumed by
the connected MIDI devices.
Whenever you press a keyboard key or a button (for
example) on the control panel, a message is sent to the
sound generation section , or to the sequencer section in
case of use of the Phrase Recorder and/or the Motion
Recorder.
This section of the OB-12 generates the sound you
program using the panel controls or the display. The data
received from the control section, from the sequencer
section in case of playback of Phrases or Motions, or from
the [MIDI IN] port in case of connected MIDI units, inform
the sound generation section of how and when it is to
produce the sounds, and on what time-scale.
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OB 12
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