Yamaha UD-Stomp, User Manual

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14
L R
PAN
L R
PAN
L R
PAN
Using the UD-Stomp
Setting the Feedback
Up to this point we have set the delay time so a
single delay sound is produced 250msec after the
original sound. Next, set the Feedback parameter
to determine how many times the delay will repeat.
4.
Rotate the FEEDBACK knob so that “
10.0
” ap-
pears in the display. The delay sound is re-
peated infinitely without fading out.
When the FEEDBACK is set to a lower value,
the number of times the delay is repeated will
decrease and the delay sound will fade out.
In this step, set the FEEDBACK level to “
5.0
”.
Setting the Filters
The delay circuit also includes a HCF (High Cut Fil-
ter) which, cuts high frequencies, and a LCF (Low
Cut Filter) which, cuts low frequencies. Since these
filters are incorporated in the delay loop, the cutting
of the effected frequencies will be greater each time
the delay is repeated.
5.
Rotate the LOW CUT FILTER knob or HIGH
CUT FILTER knob and see how the filters
change the sound.
* For both knobs, a setting of 10 (
10.0
) equals a cutoff
frequency of 1kHz and setting of 0 equals off (
oFF
).
* The cutoff is also applied to the first delay.
The use of these filters offers analog simulation, etc.
Once you understand how the filters operate, set
both knobs to “
oFF
” and let’s move on to the next
step.
Setting the Pan
The term “Pan” refers to the position of the delayed
sound within the stereo field of the left and right
speakers. Use the PAN knob to set the position of
the delayed sound somewhere between left (
L10.
),
center (
C
) and right (
r10.
) as shown in the illustra-
tion below.
6.
Rotate the PAN knob and see how the delay
sound moves between the left and right speak-
ers.
Once you understand how the PAN knob oper-
ates, set the PAN knob to “
C
” and let’s move
on to the next step.
Setting the Delay Level
The LEVEL knob is used to control the volume level
of the delay sound.
7.
First, rotate the FEEDBACK knob and set its
value to “
0.0
” so that it is easier to hear how
the sound changes.
Rotate the LEVEL knob and adjust the volume
level of the delay sound. Rotating the knob all
the way to the right (
10.0
) will make the delay’s
volume equal to the volume of the original
sound. Rotate the knob all the way to the left
(
0.0
) and the delay sound will not be heard.
Setting the Tap
In this case, the term “Tap” refers to the timing at
which the delay sound is taken out of the delay loop.
Try the next steps and see how this effect works.
8.
Use the [UP] button and recall patch “
9.12
”.
This patch will make it easy to understand how
this effect works.
In this patch a 360msec delay is already set to
both Effect Bands 1 and 2. Notice that the de-
lay sound is louder than the original. That’s be-
cause both delay sounds, which are heard si-
multaneously, are set at the same level as the
original sound.
9.
Press the [EFFECT BAND 1] button and rotate
the TAP knob to change Tap Value of Effect
Band 1.
When the value is around “
66.6
” % notice how
the sound of the two delays creates a shuffle
rhythm. What happens is the delay sound from
Effect Band 1 is being produced at 240msec,
which is 2/3 (66.6%) of its 360msec delay time.