Radio Shack 42-4058 User Manual
Page 7
DSP
(
D
ig
it
al S
ign
al
Pr
ocess
or)
7
9^e
9^e
9^e
9^e :[fj^
:[fj^
:[fj^
:[fj^
(
&&&
&&&
&&&
&&&
to
'(-
'(-
'(-
'(-
)—Sets the
undulation depth of the chorus sound. A 
higher value produces deeper 
undulation.
3. Repeatedly press
+
or
–
or use the
number buttons to input the parameter 
setting you want.
4. Press
H
(
EXIT
). This returns to the
effect selection screen.
±
&52 &+)+6#. 5+)0#. 241%'5514
DSP effects are applied to the path between 
the sound source and output. You can add 
the effect to any sound, even after you 
added reverb or chorus effect. See “DSP” 
on Page 32 for more details.
You can also create your own DSP effects 
or download the data from 
www.radioshack.com
and transfer it to the
keyboard. The keyboard has ten DSP effect 
memories so you can store custom DSP 
effects. See “Saving DSP Parameter 
Settings” on this page and “Using the Data 
Download Service” on Page 21 for more 
information.
5
'.'%6+0) #
&52 6
;2'
1. Press
DSP
. The indicator next to DSP
lights.
2. Repeatedly press
+
or
–
to select the
DSP type you want. See “DSP” under 
“Effect List” on Page 32 for the type of 
the effects and the corresponding 
numbers. The DSP number (
&&&
&&&
&&&
&&&
to
'&/
'&/
'&/
'&/
),
7Z
7Z
7Z
7Z
(advanced tone), or
Kih
Kih
Kih
Kih
(user tone
created using DSP) appears.
5
'66+0)
$
#5+%
&52
2
#4#/'6'45
You can change these basic DSP 
parameters.
:IF Leb
:IF Leb
:IF Leb
:IF Leb
(Volume) (
&&&
&&&
&&&
&&&
to
'(-
'(-
'(-
'(-
) — Sets the
post DSP volume.
:IF FWd
:IF FWd
:IF FWd
:IF FWd
(
#,*
#,*
#,*
#,*
to
!,)
!,)
!,)
!,)
) — Sets the post DSP
stereo pan (relative position between left 
and right channels).
:IF >ebZ ed%e<<
:IF >ebZ ed%e<<
:IF >ebZ ed%e<<
:IF >ebZ ed%e<<
—Select
ed
ed
ed
ed
to keep the
current DSP line after you change the tone. 
Select 
e<<
e<<
e<<
e<<
to change the DSP line to the
original setting of the newly selected tone.
For advanced tones, changing the tone 
turns off all DSP line settings except on the 
currently selected channel.
1. Press
DSP
.
2. Repeatedly press
I
or
J
(
CURSOR
) to
display the parameter you want to 
change.
3. Repeatedly press
+
or
–
or enter a
number using the number buttons to 
change the parameter setting.
4. Press
H
(
EXIT
).
%
*#0)+0)
&52 2
#4#/'6'45
You can control the relative strength of a 
DSP and how it is applied. 
1. After selecting the DSP type you want,
press
G
(
ENTER
).
2. Repeatedly press
I
or
J
(
CURSOR
) to
display the parameter you want to 
change.
Parameters 0 to 7 — These depend on 
the algorithm of the selected DSP. See 
“DSP Algorithm List” on Page 34.
:$HlXIdZ
:$HlXIdZ
:$HlXIdZ
:$HlXIdZ
(DSP Reverb Send) (
&&&
&&&
&&&
&&&
to
'(-
'(-
'(-
'(-
) — Sets how much of the DSP-
processed sound is sent to reverb.
:$9^eIdZ
:$9^eIdZ
:$9^eIdZ
:$9^eIdZ
(DSP Chorus Send) (
&&&
&&&
&&&
&&&
to
'(-
'(-
'(-
'(-
) — Sets how much of the DSP-
processed sound is sent to chorus.
±
3. Repeatedly press
+
or
–
or enter a
number using the number buttons to 
change the parameter setting. 
4. Press
H
(
EXIT
).
5
#8+0)
&52 2
#4#/'6'4
5
'66+0)5
You can save up to 10 modified DSP 
settings in the user area for later recall.
1. After making the DSP parameter
settings you want, press
G
(
ENTER
).
The DSP number of the user area 
flashes.
2. Repeatedly press
+
or
–
to select the
user area DSP number (100-109) you 
want to save.
3. Press
G
(
ENTER
) to store the effect.
IWl[ EA
IWl[ EA
IWl[ EA
IWl[ EA
briefly appears and the display
returns to the tone or rhythm selection 
screen.
75+0) 6*' '37#.+<'45
The keyboard has 10 preset four-band 
equalizers. You can also adjust the gain of 
each of the four bands to suit your personal 
preference.
5
'.'%6+0) 6*'
'
37#.+<'4
6
;2'
1. Press
EQUALIZER
. The currently
selected equalizer type appears.
±
016'
±
Changing the Reverb or Chorus 
Parameters
You can turn effects on/off or change the effect
level for each keyboard channel separately. 
See “Using the Mixer” on Page 12 for more 
information.
Selecting a DSP Type
You must turn on the DSP lines of the required
parts using the mixer function. See “Using the 
Mixer” on Page 12.
Changing DSP Parameters
•
The effects can be turned on/off or have 
their levels set separately for each 
keyboard channel. See “Using the Mixer” 
on Page 12.
•
Playing a demo tune automatically changes
the effect to the one assigned to the tune. 
You cannot change or cancel a demo tune 
effect.
•
Changing the effect setting while the 
keyboard is playing causes a slight break in
the sound when the effect changes.
•
The advanced tones automatically turn on 
the DSP line for more effective tones. If you
assign an advanced tone to a keyboard part
(Channels 1 through 4), the DSP line turns 
on automatically and the DSP selection 
changes according to the advanced tone 
settings. 
•
In the mixer mode, the DSP line on/off 
setting for a part with an advanced tone is 
on, while the setting for a part that does not
have an advanced tone is off. DSP effects 
previously applied to these parts are 
cancelled and the tone might sound 
different. Use the mixer editing sequence to
turn DSP back on (see“Using the Mixer” on
Page 12).