Getting The Most From The Built-In; Analog Delay Line; Setting Ор - Yamaha EM-95 Operating Manual

GETTING THE MOST FROM THE BUILT-IN ANALOG
DELAY LINE
WHAT IS AN ANALOG DELAY LINE ?
An analog delay line is an electronic circuit that provides echo and related effects by slowing down audio signals---a more
capable space-age. alternative to older style tape-loop echo machines and reverb springs. The term "analog" means that the
audio signal retains its original voltage levels throughout the electronics. Since there are no moving parts in the delay, `
maintenance is unnecessary. Moreover, the normal shocks or vibration encountered in touring and in high sound level
environments do not affect the sound.
ECHO AND REVERB EFFECTS ?
"Echo" and "reverb'' are often confused with one
another, and there is some overlap in their definitions.
Generally speaking, "echo" consists of one or more
distinct, delayed sound images with recognizable attacks.
"Reverb" also consists of multiple delayed sound images,
but they smear together and have no discretely discern-
able attacks.
To get a single echo from the delay line, set the Feedback
control at zero, and adjust the time delay as desired. For
multiple echoes, turn up the Feedback control. If the
input program has little or no sharp musical attacks (i.e.,
legato string lines or melodic vocal backups), then the
multiple echoes with a long delay time can sound like a
reverb, When there are more sharp attacks and decays in
the program material, the effect will be more repetitive.
MANUAL PITCH BEND WITH FEEDBACK ?
It is possible to obtain changes in pitch (frequency) by
using the delay line! Simply set the Feedback at about #5,
and vary the Delay Time up and down between #0 and
#10, or anywhere on the scale. 1f you move the Delay
control up or down and then hold it at the new setting,
the pitch will increase or decrease, then stay constant
until the delay dies out or a new sound is introduced.
SETTING UP
Before turning on the mixer's AC power switch, connect
all inputs, outputs and speakers, and be sure the Feedback
control is at #0. If other electronic equipment or electro-
nic instruments are connected to the ЕМ-95" inputs, turn
on that equipment before turning on the mixer. This will
not only avoid annoying hum, it will help prevent turn-on
transients from damaging speakers or other equipment.
Set the input Line/Inst/Mic selector switches (Line/Phono
selector on channel 6) to complement the type of device
that is plugged into the Input Jack below. If the AUX IN
or TAPE input is to be used, set the CH1 ^ 6/AUX IN/
TAPE selector as appropriate (if neither is used the switch
setting should be CH1 ^ 6 and the FUNCTION. volume
set at minimum). |
various effects).
FIG. 3. ECHO/REVERB DELAY CONTROL SETTINGS.
INTEGRATED MIXER YAMAHA eu SEES ноос, ТЭЛЭЭ
Set in shaded area Тог multiple
echos, or at "O'' for a single echo.
сн AUK (Re "м TAPE
POWER
Set as desired for a short or
long delay.
FUNCTION
Adjust to balance total echo
effect proportion to overall
program mix.
YAMAHA eu Series mover SS)
Set at approximately this
range. Do not adjust during
the effect.
Move control up and down to
achieve pitch shift.
Adjust as desired, usually toward
high end of control scale.
ECHO VOLUME Masten
If runaway Feedback (Howling) should occur, immediate-
ly turn down the EM-95 Feedback control.
Initially, set the channel Volume controls at #0, and the
Master volume control at about #3. Turn all channel Echo
controls and master Echo Volume to #0, and center the
Bass and Treble controls. One channel at a time, bring up
the Volume controls until the desired mix balance is
achieved; these volume controls should be set somewhere
between #5 and #8. Then, if the overall volume is too
low or too high, readjust the Master volume accordingly.
Once the overall volume and balance are thus set, adjust
the Bass and Treble controls as desired.
If you want to add echo effects to one or more channels,
first set the master Echo Volume control at about #5.
Then set the channel Echo controls to between #0 and
#10, depending on how much effect you want each
channel to contribute, Now experiment with the delay
time and feedback controls to achieve the effect quality
you want. (See FIG. 3 and 4, and the associated
descriptions for suggested starting points to achieve
Finally, readjust the Echo Volume
control as required,