Alesis Plus Bedienungsanleitung
Alesis
QUADRAVERB
Plus
USERS MANUAL
ADDENDUM
2
2
INTRODUCTION
The QuadraVerb Plus is an upgraded version of the original QuadraVerb . The
many new features that are now available are made possible by a simple
software update, which requires only the replacement of its EPROM (Erasable
Programmable Read Only Memory). The hardware of the QuadraVerb remains
unchanged.
The operation of the QuadraVerb Plus is identical to the original QuadraVerb
and all original features of the QuadraVerb are retained in the QuadraVerb
Plus . All patches originally written for the QuadraVerb will sound the same on
the QuadraVerb Plus. This addendum only describes the new features. Full
instructions on the operation of your unit can be found in your User's Guide.
NEW FEATURES
New features available on the QuadraVerb Plus include Sampling, Ring
Modulator, and Resonator configurations, plus the addition of Multi Tap Delay,
Auto Panning, and Tremolo Modulation on original configurations where these
features are applicable.
In addition, the Quadraverb's extensive MIDI implementation has been greatly
enhanced to include real-time parameter control of parameters such as the
Delay, Volume, and Feedback for each of the 8 individual taps in the Multi Tap
Delay configuration, as well as the Auto Panning and Tremolo's Modulation
Speed and Depth. Also, the Quadraverb Plus lets the user adjust parameters
such as the Ring Modulator's Spectrum Shift, Output Up/Down Mix, and
Delay/Reverb Up/Down Mix as well as the Pitch and Decay of the Resonator.
This allows the user to achieve a greater level of creative control than ever
before.
•MULTI TAP DELAY - The Multi Tap Delay is a new type of
delay available in the 5 BAND EQ->PITCH->DELAY
configuration where up to 8 taps can be defined in the delay.
The Delay Time, Volume, Panning, and Feedback Amount
can be individually adjusted for each tap as well.
•SAMPLING - The QuadraVerb Plus now has the ability to
make a brief digital recording of the input being fed to it,
commonly known as sampling.
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•AUTO PANNING - Auto Panning allows a signal to
automatically pan from side to side (when the outputs are
connected in stereo) at a selected rate and depth.
•TREMOLO MODULATION - Tremolo Modulation is an
effect which automatically varies the volume at a selected
rate and depth, simulating the "Surf Sound" tremolo effect
found on old instrument amplifiers.
•RING MODULATOR - The Ring Modulator is a specialized
amplitude modulator that produces an output that contains
only the sum and difference frequencies of its input
waveforms' harmonics. It is most useful for generating
metallic, bell-like sounds.
•RESONATORS - A Resonator generates a pitch in addition
to the original input signal, making it possible for a non-
pitched sound to become pitched. There are 5 resonators in
the QuadraVerb Plus.
MULTI TAP DELAY
The Multi Tap Delay is a new type of delay available in the 5 BAND EQ->PITCH-
>DELAY configuration. In this mode, up to 8 taps can be defined in the delay.
The Delay Time, Volume, Panning, and Feedback Amount can be individually
adjusted for each tap. The cumulative delay time of all 8 taps is 1500
milliseconds.
The Master Feedback control adjusts the global amount of feedback from all the
taps, and the Mix Delay volume adjusts the amount of delay in the effect output.
The Delay Time is relative to the previous tap, which means that when Tap #1 is
delayed, all of the following Taps are delayed by the same amount as well. The
following illustration shows how the timing of adjacent taps behave when a single
delay time is modified (Tap 2 delay is changed from 250ms to 500 ms in this
example):
FIGURE 7
MULTI TAP DELAYS
A
4
4
B0 0.5 Sec 1.0 Sec 1.5 Sec
TAP 1 TAP 2 TAP 3 TAP 4
250 ms 250 ms 500 ms 125 ms
TAP 1 TAP 2 TAP 3 TAP 4
250 ms 500 ms 500 ms 125 ms
In Figure 7A, Tap #1 is set at 250ms, Tap #2 is set 250ms behind Tap #1
(500ms from the beginning), Tap #3 is set 500ms behind Tap #2 (1 second from
the beginning). In Figure 7B, an additional 250ms is added to Tap #2 which
means that it now occurs at 750ms (instead of 500ms as in 7A), and Tap #3 now
occurs at 1250ms (instead of 1 second in Figure 7A).
SELECTING THE MULTI TAP DELAY
CONFIGURATION
Multi Tap Delay is accessed through the 5 BAND EQ->PITCH->DELAY
configuration.
To select the configuration, first press the CONFIG button, then press the VALUE
buttons until the display reads:
CONFIGURATION:
5BAND EQ>PCH>DL
The block diagram of this configuration is as follows:
FIGURE 8
5 BAND EQ->PITCH->DELAY BLOCK DIAGRAM (with Multi Tap Delay)
5
5
5 BAND EQ PITCH
MIX
1
2
EQ OUTPUT
PITCH
OUTPUT
DIRECT OUTPUTDIRECT PRE/POST EQ
L
RL
R
MULTI TAP
DELAY OUTPUT
DELAY 1 DELAY 2 DELAY 8
MULTI TAP DELAY
DELAY X
FEEDBACK
FEEDBACK 1 FEEDBACK 2 FEEDBACK X FEEDBACK 8
AMP 10 AMP 2 AMP X AMP 8
PAN 2 PAN X PAN 8PAN 1
EFFECTS OUTPUT
EDITING THE MULTI TAP DELAY PARAMETERS
1) To access the Multi Tap Delay parameters, press the DELAY button. The
display will then read:
DELAY TYPE:
STEREO DELAY
Press the "Up" VALUE button until the next selection reads:
DELAY TYPE:
MULTI TAP DELAY
This page allows the selection of the Mono, Stereo, Ping Pong (as from
the original configuration) or the new Multi Tap Delay.
2) Pressing the "Up" PAGE button will select the next page which will read:
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6
DELAY INPUT 1:
POST EQ
Pressing the VALUE buttons will select the other input choice which will
read:
DELAY INPUT 1:
PRE EQ
This page selects whether the input signal to Input #1 of the Delay section
is derived either before (Pre) or after (Post) the EQ. This page is also
identical to the original QuadraVerb configuration.
3) Pressing the "Up" PAGE button again will select the next page which will read:
DELAY INPUT MIX:
1<-00 -> PITCH
Pressing the VALUE buttons will select the mix between Delay Input #1
(which was selected on the previous page) or the second Delay input
which is dedicated to the output of the Pitch section. This page is also
identical to the original QuadraVerb configuration.
4) Pressing the "Up" PAGE button again will select the Delay Tap to be edited,
which will read:
TAP NUMBER:
1
Pressing the VALUE buttons will select the desired Tap. The range is 1 to
8.
5) Pressing the "Up" PAGE button again will select the Tap Delay Time page,
which will read:
TAP 1 DELAY TIME:
0125 millisecs
Pressing the VALUE buttons will select the desired Delay Time measured
in milliseconds. The tap number selected on the previous page is
displayed on the first line. If the cumulative delay time of the 8 taps
exceed 1500 milliseconds (1.5 seconds), the delay time will not be
allowed to increase.
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6) Pressing the "Up" PAGE button again will select the individual Tap output
volume to be edited, which will read:
TAP 1 VOLUME:
50
Pressing the VALUE buttons will select the desired Output Volume. The
range is 0 to 99.
7) Pressing the "Up" PAGE button again will select the individual Tap Panning to
be edited, which will read:
TAP 1 PANNING:
LEFT<-00->RIGHT
Pressing the VALUE buttons will select the desired Panning from Left to
Right. The range is Left 99 to Right 99.
8) Pressing the "Up" PAGE button again will select the individual Tap Feed-back
to be edited, which will read:
TAP 1 FEEDBACK:
00%
Pressing the VALUE buttons will select the desired amount of feedback.
The higher the feedback value is set, the more repeats will occur. The
range is 0 to 99.
9) Pressing the "Up" PAGE button again will select the Master Feedback to be
edited, which will read:
MASTER FEEDBACK:
00%
Pressing the VALUE buttons will select the desired amount of feedback.
This is a global parameter, scaling the feedback of all taps at once. The
range is 0 to 99.
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PLEASE NOTE: As a short cut, while page four through eight are active, the
Tap Number under edition can be incremented by pushing the DELAY switch.
The Tap number will fold back to 1 when Tap 8 is passed.
MODULATING THE MULTI TAP DELAY
PARAMETERS
The Delay, Volume, Panning, and Feedback of each Tap, as well as the Master
Feedback can also be modulated by any MIDI modulation source. This can be
accomplished by referring to the "Modulating the Parameters" section of the
QuadraVerb Users Manual on page 66.
EDITING THE EQ, PITCH, DELAY AND REVERB
PARAMETERS
The parameters and mode of adjustment of the EQ, Pitch, and other Delay
sections are identical to the original 5 BAND EQ->PITCH->DELAY configuration
as found on page 76 of the QuadraVerb Users Manual.
SAMPLING
The QuadraVerb Plus now has the ability to make a 1.55 second sample of the
input being fed to it. The maximum record time is 1.55 seconds. In playback,
the sample start and length times can be altered for special effects or to trim the
playback of the sample to the actual start point of the sound. The sample can
also be played back in its entirety (one shot) or continuously repeated (looping).
The playback can be further altered by having a variety of sources to trigger the
sample. These sources include an incoming audio source, playback from the
front panel, or a MIDI note on, note off, and note number/pitch message, which
allows the sample to be played back from a MIDI keyboard.
SELECTING THE SAMPLING CONFIGURATION
Sampling is accessed through new Configuration 8. All Sampling parameters
reside under the DELAY button while in the SAMPLING configuration.
To select this configuration, first press the CONFIG button, then press the VALUE
buttons until the display reads:
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9
CONFIGURATION:
SAMPLING
The block diagram of this configuration is as follows:
FIGURE 4
CONFIGURATION 8
SAMPLING
SAMPLING
SAMPLING OUTPUT
L
R
DIRECT OUTPUT
L
R
TRIGGER
LengthLooping
OnOff
Start
MIDI
NOTE
PITCHTRIGGER
AUDIO
TRIGGER
RECORDING A SAMPLE
There are two ways to record a sample. In the first (the easiest to get a good
sample), the QuadraVerb Plus waits for the incoming audio to trigger recording.
The second method requires the user to initiate recording by pressing the
BYPASS switch on the front panel.
RECORDING BY AUDIO TRIGGER
1) Press the DELAY button. The display will read:
SAMPLE PLAYBACK:
ONE SHOT
This page is primarily for playback and can be bypassed for now.
2) Press the PAGE up button three times. The display will then read:
AUDIO TRIGGER
SAMPLING: OFF
3) Press the VALUE button to select the Audio Trigger On mode. The display will
read:
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10
AUDIO TRIGGER
SAMPLING: ON
4) Now press the BYPASS button. The display will read:
WAITING FOR AUDIO
THRESHOLD
5) Send a signal to the QuadraVerb Plus. When the first LED (-18dB) lights,
the input signal has passed the audio threshold and recording has begun.
For the best recorded signal, raise the input level control so that the -6dB
LED lights. The signal will be distorted if the red "Clip" LED lights.
RECORDING FROM THE FRONT PANEL
1) Press the DELAY button. The display will read:
SAMPLE PLAYBACK:
ONE SHOT
This page is primarily for playback and can be bypassed for now.
2) Press the PAGE up button three times. The display will then read:
AUDIO TRIGGER
SAMPLING: ON
3) Press the VALUE button to select the Audio Trigger Off mode. The display will
read:
AUDIO TRIGGER
SAMPLING: OFF
4) Now, when ready to sample, press the BYPASS button. The display will read:
SAMPLING.................
..
For the best recorded signal, raise the input level control so that the -6dB
LED lights. The signal will be distorted if the red "Clip" LED lights.
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