Alesis Plus manual

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 ( E rasable P rogrammable R ead O nly M emory). The hardware of the QuadraVerb remains unchanged. The operation of the Q[...]

3 3 • 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[...]

4 4 B 0 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[...]

5 5 5 BAND EQ PITCH MIX 1 2 EQ OUTPUT PITCH OUTPUT DIRECT OUTPUT DIRECT PRE/POST EQ L R L 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 8 PAN 1 EFFECTS OUTPUT EDITING THE MULTI TAP DELAY PARAMETERS 1) To access the Multi Tap Dela[...]

6 6 DELAY INPUT 1: P OST EQ Pressing the VALUE buttons will select the other input choice which will read: DELAY INPUT 1: P RE 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 &qu[...]

7 7 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 rea[...]

8 8 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 mo[...]

9 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 Length Looping On Off Start MIDI NOTE PITCH TRIGGER AUDIO TRIGGER RECORDING A SAMPLE There are two ways to record a sample. In the first (the easiest to get a good sample), the Q[...]

10 10 AUDIO TRIGGER SAMPLING: O N 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 li[...]

11 11 PLAYING BACK A SAMPLE There are three ways to play back a recorded sample: from the front panel, from an audio trigger, or through MIDI. Playback from the front panel (manual playback) would normally be used when you want to manually trigger a recorded sample. Playback from an audio trigger is normally used when replacing one audio source wit[...]

12 12 To play again, repeat steps 2A and 3A. PLAYBACK FROM AN AUDIO TRIGGER 1) Press the DELAY button. The display will read: SAMPLE PLAYBACK: O NE SHOT 2) Press the "Up" VALUE button until the display reads: SAMPLE PLAYBACK: A UDIO TRIGGER Any incoming audio signal that passes the threshold (makes the -18dB LED light) will cause the samp[...]

13 13 MIDI TRIGGER: G ATED In the MIDI Gated mode, the sample will stop playing as soon as the key is released. 3) Pressing the VALUE "Down" button once will select the next display, which will read: MIDI TRIGGER: O FF When the MIDI Trigger is in the "Off" state, then the QuadraVerb Plus will not respond to MIDI note on/off info[...]

14 14 MIDI TRIGGER BASE: 060 The Base value is the note where the sample will play back with no pitch change. 4) Press the VALUE buttons to select the desired note. Note number 60 = Middle C. 5) Press the PAGE "Up" button. The next display will read: MIDI TRIGGER HIGH LIMIT: 127 6) Press the VALUE "Down" button to select the hig[...]

15 15 This page will determine at what point in the sample that playback will start. 3) Press the VALUE button to select the desired Start time. The start can be anywhere in the sample in 10 millisecond steps. When the start of the sample is moved, the length of a loop is maintained unless the end of the sample is reached before the loop duration. [...]

16 16 4) Press the VALUE buttons to select the desired recorded Sample signal level. The range is 0 to 99 with 0 being off. PANNING AND TREMOLO MODULATION Auto Panning and Tremolo modulation of the EQ output has been added to the EQ->PITCH->DELAY->REVERB and 5 BAND EQ->PITCH->DELAY configurations. Auto Panning allows a signal that ha[...]

17 17 EQ PITCH DELAY REVERB MIX MIX 1 2 1 2 EQ OUTPUT PITCH OUTPUT DELAY OUTPUT REVERB OUTPUT EFFECTS OUTPUT DIRECT OUTPUT DIRECT PRE/POST EQ L R L R PANNING/ TREMOLO FIGURE 6 5 BAND EQ->PITCH->DELAY BLOCK DIAGRAM 5 BAND EQ PITCH DELAY MIX 1 2 EQ OUTPUT PITCH OUTPUT DELAY OUTPUT EFFECTS OUTPUT DIRECT OUTPUT DIRECT PRE/POST EQ L R L R PANNING/[...]

18 18 This page allows the selection of the direct signal going either Pre-EQ, Post-EQ (both with no panning or tremolo), or Post-EQ with Panning or Post-EQ with Tremolo. 3) Pressing the "Up" PAGE button repeatedly will select the Panning Depth or Tremolo Depth page which will read: EQ PANNING DEPTH 99 or EQ TREMOLO DEPTH 99 .........depe[...]

19 19 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, Delay and Reverb sections are identical to the original EQ->PITCH->DELAY->REVERB configuration as found on[...]

20 20 500Hz 1KHz 2KHz Amp Freq. INPUT SIGNAL Amp Freq. UP OUTPUT 700Hz 1.2KHz 2.2KHz Amp Freq. DOWN OUTPUT 100Hz 500Hz 1KHz 5KHz 10KHz 300Hz 800Hz 1.8KHz PITCH SHIFT AMOUNT = 200Hz 100Hz 500Hz 1KHz 5KHz 10KHz 100Hz 500Hz 1KHz 5KHz 10KHz A B C In Figure 1A, the fundamental (or frequency that we perceive as the instrument's pitch) is 500 Hz. The[...]

21 21 algorithm implemented in the QuadraVerb Plus gives independent access to the Up and Down version of the original spectrum. The ring modulator treatment will be most valuable for special effect on voices or sound effects. SELECTING THE RING MODULATOR The Ring Modulator is accessed through new Configuration 6, which is RING MODULATOR->DELAY-[...]

22 22 2) Pressing the "Up" PAGE button will select the next page which will read: RING MOD OUTPUT MIX: DOWN<-00->UP Pressing the VALUE buttons will select the desired mix of Up to Down Ring Modulator outputs. 3) Pressing the "Up" PAGE button again will select the third page which will read: DEL/REVERB INPUT MIX: DOWN<-0[...]

23 23 SELECTING THE RESONATOR CONFIGURATION The Resonators are accessed through new Configuration 7, which is RESONATOR->DELAY->REVERB. The block diagram of this configuration is as follows: FIGURE 3 CONFIGURATION 7 RESONATORS->DELAY->REVERB BLOCK DIAGRAM DELAY REVERB MIX MIX 1 2 1 2 DELAY OUTPUT REVERB OUTPUT EFFECTS OUTPUT L R L R RES[...]

24 24 RESONATOR GATE MODE: M IDI GATED PLEASE NOTE: When playing the resonators from MIDI, the five pitches are determined by up to five notes played on the MIDI keyboard. When used this way, the resonator's tunings should be set to zero for proper keyboard tuning. 2) Pressing the "Up" PAGE button will select the next page which will[...]

25 25 EDITING THE DELAY AND REVERB PARAMETERS The parameters and mode of adjustment of the Delay and Reverb sections are identical to the original LEZLIE-> DELAY->REVERB configuration as found on page 69 of the QuadraVerb Users Manual.[...]