Yamaha D-85 - Symphonic Chorus and Tremolo Effects; Understanding Tremolo; Symphonic Chorus Functionality; Tremolo Speed Control

Symphonic
Chorus
and
Tremolo
= This provides a gentle reverberation,
TREMOLO
DEES If neither of these tablets is depressed, the tremolo
effect will not be produced. If they are depressed
together, the TREMOLO tablet takes priority.
What does symphonic chorus mean?
This function, when added to any upper, lower or
pedal flute, orchestra or bass tone levers, wil! produce
a massed effect. For example, when used with an 8’
string, the sound produced will be that of many
strings or violins. When used with flute tone levers, a
cathedral pipe organ is simulated.
€ UPPER FLUTE: The effect applies only to the
flute sounds of the upper key-
board tone levers.
€ UPPER ORCHESTRA: The effect applies only
to the orchestra sounds of the
upper keyboard tone levers.
The SYMPHONIC CHORUS tablets
take priority over the TREMOLO
tablets.
The tremolo effect cannot be applied
to ‘wah-brass,’ ‘vibraphone’ and ‘wah
guitar’ sound,
The effect is produced with COMB-1
and COMB-2,
@ LOWER FLUTE: The effect applies only to the
flute sounds of the lower key-
board tone levers,
@ LOWER ORCHESTRA: The effect applies only
to the orchestra sounds of the
lower keyboard tone levers.
@ PEDAL: The effect applies to all the sounds of
the pedal keyboard tone levers.
When the CELESTE tablet is set to ON, the sound
reverberates slowly and this gives the music a settled
and ‘picturesque’ effect.
What does tremolo mean?
Tremolo is a variation in volume as opposed to
vibrato
(which
is
a
variation
in
pitch).
This
effect
is
achieved
by
placing
a
rotating
drum
in
front
of
a
stationary speaker. As the drum rotates fast
(TREMOLO)
or
slow
(CHORUS)
the
sound
is
only
permitted
to
escape
from
an
opening
on
one
side
of
the
drum,
which
results
in
a
change
in
the
volume
heard by the ear.
To produce the desired effect, simply select the voice
or
voices
that
are
desired,
for
example
the
upper
flutes to rotary, then select the mode of tremolo,
either fast (TREMOLO) or slow (CHORUS).
Generally, the fast speed is used for popular music
and the slow for church or classical selections.
(If the TREMOLO and CHORUS tablet are depressed
together, the TREMOLO tablet takes precedence.)
TREMOLO SPEED control
This can vary the speed
only when the tremolo
effect is being used.
3 Channel Speakers
Tremolo speaker
Once the TREMOLO tablet has been set to ON, the
speed of the tremolo effect can be adjusted using the
TREMOLO SPEED control. (This adjusts the speed
of the rotary drum.)
€ The chorus speed is fixed.