Behringer MODEL D User Manual

39 MODEL D User Manual
Slew Rate: The rate of change of a voltage or control signal.
Spectrum: First used to describe the full range of colors in visible light, the term
is also used to describe the full range of frequencies in the audio spectrum.
Square Wave: A symmetrical waveform that combines an instantaneous rise
or fall, followed by a positive or negative steady state. The name comes from the
waveform's similarity to a square.
Step: A step is one stage in a sequence and can be a control signal, single note,
chord or rest.
Stereo / Stereophonic: The most common method of sound reproduction
where separate channels, left and right, are used to give the impression of
direction.
Stereo-Field / Stereo Image: A virtual space created by stereo
loudspeakers/monitors.
Sub-Bass: Frequencies in a signal ranging from 10 Hz to 60 Hz (lower than C0 to
approximately B1).
Subtractive Synthesis: A technique of creating sounds by ltering waveforms
which are rich in harmonics.
Sustain Level: The third stage of an ADSR envelope. Specied as "the level an
envelope will return to, after the decay stage". The envelope will remain at the
sustain level until the played key is held.
Sustain Pedal: A Pedal containing a switch which can be connected to a sustain
input and used to send a control signal dependant on the state of the switch (On/
O). The control signal can then be used to modulate other parameters, and/or to
add expression.
Synchronisation (Sync): Coordination of timing between devices.
Sync (Tempo): A function where an cyclical event such as an LFO is synchronised
to a tempo value.
Sync (Oscillator): A function where one oscillator is synchronised to another.
The waveform of the slave oscillator is reset whenever the waveform of the
master oscillator restarts.
Sync (Arp/Seq): A function where an arpeggiator or sequencer is synchronised
to a tempo value.
Sync (Key): A function where an event is synchronised to the pressing of a key.
System Exclusive (SysEx) Messages: Multi-byte messages used to transfer a
complete program or globals, in the form of request - response.
Threshold: Level at which dynamics processing will begin to operate.
Tempo: The speed at which a composition should be played, usually expressed in
beats per minute (BPM).
Threshold: In dynamic eects, this is the level that must be passed before the
processing is engaged.
Timbre: The tone, character, or aesthetic qualities of a sound.
Transposition / Transpose: A function that allows you to shift the entire
keyboard up and down in pitch.
Treble: Frequencies in a signal ranging from 5 kHz to 20 kHz (approximately D#8
to above C10).
Tremolo: A periodic change in amplitude.
Triggering: Activation of a function, such as the start of a note, envelope, or LFO.
Tune / Tuning: The process of adjusting the root pitch of the instrument to a
specic reference frequency.
Unbalanced Audio: A type of audio connection that uses two wires in a cable
and does not oer the noise rejection qualities of a balanced system.
Unison: Two or more voices that are playing together at roughly the same pitch.
Universal Serial Bus (USB): A "plug and play" interface that provides a fast
connection between a computer and peripherals.
Volt (V): A unit of electrical potential dierential or electromotive force. A
dierence in charge between two points in a circuit. This dierence, when
combined with the rate of the charge (current) allows for the control of many
analog circuits that “synthesise” sound.
VoltageControlledAmplier (VCA): An amplier whose resultant magnitude
is controlled by a voltage.
Voltage Controlled Filter (VCF): A lter whose cut-o frequency can be
controlled by a voltage.
Voltage Controlled Oscillator (VCO): An oscillator whose cut-o frequency
can be controlled by a voltage. Typically creates the possibility of tuning drift
when used in a synthesizer.
Vibrato: A periodic change in pitch.
Voice: A physical embodiment of a complete set of OSC, Envelopes, LFOs and VCF
which can play a single note.
Waveform: A repeating signal typically created by an oscillator. A waveform can
also be random in the case of noise.
Wavelength: The shortest distance between two successive points on a wave
that are in phase. When used in audio or acoustics, the physical wavelength is
calculated by dividing the velocity of sound in air (approximately 340 m/s) by the
waveform frequency.

Behringer MODEL D Specifications

General

Built-in display	No
Housing color	Black
Power source type	DC, AC