Yamaha QY70 Owner's Manual page 238

Cutoff frequency:
Filters work by allowing the portion of the
signal lower than a given frequency to pass,
and cutting the portion of the signal above
that frequency. This frequency is referred to
as the cutoff frequency. See the entry for
Low Pass Filter.
Decay time:
The time from when the maximum volume
of a note is reached until it falls to the sustain
level.
Delay:
An effect that delays an audio signal. The
QY70's Variation effect allows a delay to be
applied.
Depth:
The amount or degree of a setting or effect.
Drum table remapping:
One of the play effect functions. This
function allows you to change specified
rhythm instruments in the drum play data to
other rhythm instruments when a song or
pattern is played back.
Dry sound:
The audio signal that is not processed by an
effect. Normally when using an effect, not all
of the audio signal is passed through the
effect. Rather, the degree of the effect is
adjusted by mixing the sound that passes
through the effect (the wet sound) with the
sound that bypasses the effect (the dry
sound). See also the entry for Wet sound.
Echo back:
The action or process in which data received
via the MIDI IN connector is re-transmitted
from the MIDI OUT connector.
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A p p e n d i x
D
E
Edit:
The action of modifying or editing data.
Effect:
A block that processes the sound to add
various effects. The QY70 provides two
system effects (reverb and chorus), and one
effect (variation) which can either be used as
a system effect or as an insertion effect.
Element:
A block within the AWM2 tone generator
that generates a sound. The voices of the
QY70 consist of 1 or 2 elements. Voices that
use 2 elements generally have a thicker
sound that cannot be achieved when using 1
element. With 2 elements different voices
such as piano and strings sounds can be
mixed into a single voice.
Envelope generator (EG):
A block that modifies the level of the tone
generator from the moment that a note is
played until the sound decays to silence.
Event:
A single piece (such as Note On/Off or
Program Change messages) of the data
which makes up a sequence.
Exclusive:
See the entry for System Exclusive Mes-
sage.
Expression:
A MIDI control change message used to
control the volume of a part (track).
Filter:
A block which modifies the tone by cutting
the output of a specific frequency portion of
the sound. The QY70 has low pass filters
allowing the tone to be made more mellow
by cutting the overtones above a specified
frequency, or brighter by allowing them to
pass. See also the entry for Low pass filter.
F