Looperlative LP2 Gen D User manual

LP2 Gen D mini looper
The LP2 mini looper offers 1-41 stereo tracks for looping. The LP2 is a less powerful version of the
LP1 Gen B looper. Man of the features of the LP1 are accessible through MIDI commands. The
audio interfaces is identical to the LP1 Gen B audio interface. Audio is sampled with a sample rate of
48 kHz and 24-bits per sample. Audio is stored internall in 128MB of RAM and at least 16GB of
microSD. Like the LP1, currentl recording and pla ing audio is stored in RAM. Tracks are saved to
persistent (microSD) storage in the background while the audio continues to pla .
Back Panel
FEEDBACK The FEEDBACK input takes a ¼” TRS plug from an expression pedal. This controls
the feedback setting of the current track. 100% means that the track will loop
indefinitel . An thing less than 100% and the track will fade each time it pla s.
CONFIG The CONFIG button is used to select configuration or setup mode. A short press selects
configuration mode. A long press selects setup mode.
SDCARD The SDCARD slot is not used in the current generation LP2.
MIDI OUT The MIDI OUT connector provides MIDI clock to other devices and provides
Looperlative SYSEX messages for status of the device.
MIDI IN The MIDI IN connector allows external clock and control to the LP2. Firmware
upgrades can also be provided through this port as MIDI SYSEX files.
POWER This is a 9V 1A negative-center power input.
IN This is a ¼” TRS socket that accepts stereo audio input. You ma connect a TS mono
cable, but then onl one of the two channels will be used.
OUT This is a ¼” TRS socket that provides stereo audio output. You ma connect a TS mono
cable, but then onl one of the two channels will be used.
MIX This knob controls the amount of dr signal that is passed through the LP2 from input to
output.

Level Controls
Inside the LP2 are 4 trim pots the control the input and output audio levels. Input and output levels are
limited to 8Vp-p (11.2dBu) at the connectors. Internall , the CODEC is limited to 5Vp-p. An op amp
is used on each input and on each output to provide appropriate filtering and gain of the signal. The
trim pots on the input control the input level to the op amp. The trim pots on the output control the op
amp gain. The red ellipse contains the input trim pots. The blue ellipse contains the output gain pots.

Top Face
The top of the LP2 has 4 buttons and 10 LEDs. The two LEDs next to the word “STATUS” are used to
indicate basic status of tracks 1 and 2. The top LED is for track 1 and the bottom LED is for track 2.
The 8 LEDs on the side are used to select different effects for the two effect buttons and are used for
additional status. The 4 buttons are multipurpose depending on the mode. Their meaning in normal
mode is printed under each button.

Operating Modes
There are several modes of operation that can be accessed using the various buttons on the unit. B
default, the LP2 powers on in the normal mode.
Normal mode
This is the basic operating mode of the LP2. The status LEDs indicate individual track status as
follows:
Blue Flash The blue color is flashed at the start of the currentl selected track. This helps indicate
which track is currentl selected and gives an indication of where the loop beginning
is for that track.
Solid Blue This happens when the currentl selected track is empt .
Solid Red This track has recorded audio but is stopped
Blinking Red This track is currentl recording.
Solid Green This track is currentl pla ing.
Blinking Green This track is currentl overdubbing or replacing
The 8 LEDs on the right side provide additional status information:
1 (top) Is currentl not used
2 Indicates that the current track is pla ing at quarter speed
3 Indicates that the current track is pla ing slower than normal speed
4 Indicates that the current track is pla ing in reverse
5 Indicates that the current track is track 1
6 Indicates that the current track is track 2
7 Indicates that MIDI clock is recognized on the input
8 (bottom) Indicates that the latest changes to the track are not et saved to the microSD card.
Record/Overd b b tton in normal mode
The Record/Overdub button is normall a 3-wa toggle:
•On an empt or stopped track, the track starts recording.
•On a recording or pla ing track, the track switches to overdub mode.
•On an overdubbing track, the track switches to pla mode.
A long press on the Record/Overdub button also depends on the situation:
•On a stopped track, a long press will erase all tracks.
•On a pla ing track, a long press will enter configuration mode. Configuration mode is also
accessed through a short press of the config button on the back.

Play/Stop b tton in normal mode
The Pla /Stop button is normall a 2-wa toggle:
•On a stopped track, the track starts pla ing.
•On a pla ing track, the track stops.
•On a recording or overdubbing track, the track switches to pla ing.
Effect 1 or Effect 2 b tton in normal mode
The effect buttons in normal mode will perform whatever effect was selected for them in configuration
mode.
Config ration mode
Configuration mode is used to select the function of the effect 1 and effect 2 buttons. Configuration
mode is entered using a short-press on the config button the back of the unit. In this mode, all 8 LEDs
will blink. The buttons will now do the following functions:
Config Exit configuration mode and return to normal mode
Record/Overdub Undo last change to the current track
Pla /Stop Enter song select mode
Effect 1 Enter effect 1 programming mode
Effect 2 Enter effect 2 programming mode
Effect 1 programming mode
In this mode, ou press the effect 1 button until the LED is next to the function that ou want assigned
to the effect 1 button. These functions are:
Traditional set
RETRIGGER ONCE This causes the loop to start or restart from the beginning and pla exactl
one time through to the end.
RETRIGGER RANDOM This causes the loop to jump to a random point in the loop.
½ SPEED This switches between normal speed and ½ speed.
REPLACE While held, the track audio will be replaced.
REPLACE 1/8 Will replace the next quantized 1/8th of the loop
REPLACE 1/12 Will replace the next quantized 1/12th of the loop
REPLACE 1/7 Will replace the next quantized 1/7th of the loop
REPLACE 1/10 Will replace the next quantized 1/10th of the loop
Alternate set
RETRIGGER ONCE Switch track. See section Track Switch below.
RETRIGGER RANDOM This causes the loop to jump to a random point in the loop.
½ SPEED This switches between normal speed and ½ speed.
REPLACE While held, the track audio will be replaced.

REPLACE 1/8 Will replace the next quantized 1/8th of the loop
REPLACE 1/12 Will replace the next quantized 1/12th of the loop
REPLACE 1/7 Will replace the next quantized 1/7th of the loop
REPLACE 1/10 Will replace the next quantized 1/10th of the loop
Bill Walker set
RETRIGGER ONCE Redo
RETRIGGER RANDOM Retrigger
½ SPEED ½ speed
REPLACE Fast scramble
REPLACE 1/8 Select track
REPLACE 1/12 Switch track
REPLACE 1/7 Double
REPLACE 1/10 1/13 quantized replace
Effect 2 programming mode
In this mode, ou press the effect 2 button until the LED is next to the function that ou want assigned
to the effect 2 button. These functions are:
Traditional set
CONTINUE This causes the loop to start or restart from the beginning and pla .
RETRIGGER CONTINUOUS This causes the loop to jump to a random point in the loop.
¼ SPEED This switches between normal speed and ¼ speed.
REVERSE Will cause the current track to go in the reverse direction.
REPLACE 1/16 Will replace the next quantized 1/16th of the loop
REPLACE 1/24 Will replace the next quantized 1/24th of the loop
REPLACE 1/9 Will replace the next quantized 1/9th of the loop
REPLACE 1/64 Will replace the next quantized 1/64th of the loop
Alternate set
CONTINUE Current track. See section Track Switch below.
RETRIGGER CONTINUOUS This causes the loop to jump to a random point in the loop.
¼ SPEED This switches between normal speed and ¼ speed.
REVERSE Will cause the current track to go in the reverse direction.
REPLACE 1/16 Will replace the next quantized 1/16th of the loop
REPLACE 1/24 Will replace the next quantized 1/24th of the loop
REPLACE 1/9 Will replace the next quantized 1/9th of the loop
REPLACE 1/64 Will replace the next quantized 1/64th of the loop
Bill Walker set
CONTINUE Undo
RETRIGGER CONTINUOUS Replace
¼ SPEED 1/11 quantized replace
REVERSE Reverse
REPLACE 1/16 1/16 quantized replace

REPLACE 1/24 1/12 quantized replace
REPLACE 1/9 1/9 quantized replace
REPLACE 1/64 1/10 quantized replace
Song Select mode
The LP2 can choose between 8 different songs that ou have recorded in the LP2. This mode is
selected from Configuration mode as described above. In this mode, the two status LEDs will flash red
together. One of the 8 LEDs on the right will indicate the song chosen. The Effect buttons will allow
ou to move the current selection up or down. The Pla /Stop button will load the currentl selected
song.
Set p mode
To enter setup mode, ou need to hold the config button for approximatel 2 seconds until the track
status button flashes alternatel between red and green. In this mode, the 8 LEDs on the right will act
as a level indicator for the input audio. From this mode, ou ma select either the traditional set of
effect choices or ou ma select the alternate set. The traditional set matches the labels printed on the
LP2 chassis. The alternate set replaces RETRIGGER ONCE and CONTINUE. RETRIGGER ONCE
becomes SWITCH OTHER TRACK, and CONTINUE becomes SELECT OTHER TRACK.
A long press of one of the buttons in this mode chooses the effect set and then returns ou to normal
mode.
•Effect 1 chooses the alternate set
•Effect 2 chooses the traditional set
•Rec/Dub chooses the Bill Walker set
Track switch
If the alternate set of effects is selected and the effect 1 and effect 2 buttons are programmed to the top
effect, then effect 1 will be programmed to be SWITCH OTHER TRACK and effect 2 will be
programmed to be SELECT OTHER TRACK.
SWITCH OTHER TRACK
This is a multi-function button that makes it easier to record and pla songs with 2 distinct sections.
This button assumes that onl one track will be pla ed at a time. The action of this effect is dependent
on the current state of the two tracks. This function thinks of the two tracks as a “from” track and a
“to” track. The “from” track is whichever track is not empt and not stopped. If both tracks are either
empt or stopped, then the “from” track is chosen to be the current track. “from” and “to” are alwa s
opposite tracks. One of them is track 1 and the other is track 2. The function that occurs is then
described in the following table:

“from” track stat “to” track stat action
Empt or stopped Empt or stopped Record into current track
Recording Empt Stop recording and start recording other track
Recording Stopped Stop recording, stop “from” track, start pla ing “to” track
Pla ing Empt Stop “from” track and start recording “to” track
Pla ing Stopped Stop “from” track and start pla ing “to” track
Overdubbing End overdubbing and leave “from” track pla ing
Replacing End replacing and leave “from” track pla ing
SELECT OTHER TRACK
This function simpl selects the other track as the current track. If the current track is 1 then track 2 is
selected. Otherwise, track 1 is selected as the current track.
MIDI
Clock O t
The MIDI out connector on the back can provide clock to other devices. The LP2 assumes that track 1
is a single measure with 4/4 timing. It then produces MIDI clock pulses at the standard rate of 24
pulses per quarter note.
Clock In
If MIDI clock in is present on the MIDI input, then the Record button will function as a MIDI s nc
record button. In this mode, the track will assume 4/4 timing on the MIDI input clock and will
guarantee that the loop length will be an integer multiple of the measure length. On pla ing of the
loop, s nchronization with the MIDI clock will be maintained.
MIDI map
The LP2 responds to certain MIDI note on messages and MIDI CC messages. The mappings below
correspond to LP1 functions. For details on each function, please refer to the LP1 manual. Note that
tracks 3 and 4 are accessible through these commands but those tracks do not show status on the top
panel LEDs. You are welcome to use those tracks, but be aware that currentl ou cannot see their
current status.
NOTE ON 0 (C-1) Rec/Dub
NOTE ON 1 (C#-1) Pla /Stop
NOTE ON 3 (D#-1) Select Track 1
NOTE ON 4 (E-1) Select Track 2
NOTE ON 5 (F-1) Select Track 3
NOTE ON 6 (F#-1) Select Track 4
NOTE ON 11 (B0) Track Erase
NOTE ON 13 (C#0) Pla Now

NOTE ON 14 (D0) Stop Now
NOTE ON 15 (D#0) Pla
NOTE ON 16 (E0) Stop
NOTE ON 17 (F0) All Pla Now
NOTE ON 18 (F#0) All Stop Now
NOTE ON 19 (G0) All Pla
NOTE ON 20 (G#0) All Stop
NOTE ON 21 (A1) Set As Clock Src
NOTE ON 22 (A#1) Next Track
NOTE ON 23 (B1) Prev Track
NOTE ON 24 (C1) Double
NOTE ON 25 (C#1) Triple
NOTE ON 26 (D1) Quadruple
NOTE ON 27 (D#1) MIDI S nc Rec
NOTE ON 28 (E1) Reverse Track
NOTE ON 29 (F1) Half Speed Tr
NOTE ON 30 (F#1) Feedback 100%
NOTE ON 31 (G1) Feedback +10%
NOTE ON 32 (G#1) Feedback -10%
NOTE ON 33 (A2) Feedback +5%
NOTE ON 34 (A#2) Feedback -5%
NOTE ON 35 (B2) Pla Retrigger
NOTE ON 47 (B3) S nc Rec/Dub
NOTE ON 48 (C3) Replace
NOTE ON 49 (C#3) Replace+Original
NOTE ON 52 (E3) Fast Scramble
NOTE ON 53 (F3) Medium Scramble
NOTE ON 54 (F#3) Slow Scramble
NOTE ON 56 (G#3) Repla /All Stop
NOTE ON 60 (C4) Pla /Stop Now
NOTE ON 74 (D5) Pan Center
NOTE ON 75 (D#5) Swell
NOTE ON 76 (E5) Fade
NOTE ON 77 (F5) Fade/Swell
NOTE ON 78 (F#5) Q Replace
NOTE ON 79 (G5) Q Replace+Orig
NOTE ON 81 (A6) Undo
NOTE ON 83 (B6) Octave lower
NOTE ON 84 (C6) Minor 2nd
NOTE ON 85 (C#6) Major 2nd
NOTE ON 86 (D6) Minor 3rd
NOTE ON 87 (D#6) Major 3rd
NOTE ON 88 (E6) 4th
NOTE ON 89 (F6) Diminished 5th
NOTE ON 90 (F#6) 5th
NOTE ON 91 (G6) Minor 6th
NOTE ON 92 (G#6) Major 6th
NOTE ON 93 (A7) Minor 7th
NOTE ON 94 (A#7) Major 7th

NOTE ON 95 (B7) Original note
NOTE ON 97 (C#7) Track Level 0
NOTE ON 98 (D7) Track Level -5
NOTE ON 99 (D#7) Track Level +5
NOTE ON 100 (E7) Switch-Record
NOTE ON 101 (F7) SwitchPla +CKSR
NOTE ON 102 (F#7) Shrink to 50%%
NOTE ON 103 (G7) Stretch to 200%%
NOTE ON 104 (G#7) SwitchPla
NOTE ON 105 (A8) Random Restart
NOTE ON 106 (A#8) Quant Value 1
NOTE ON 107 (B8) Quant Value 2
NOTE ON 108 (C8) Quant Value 3
NOTE ON 109 (C#8) Quant Value 4
NOTE ON 110 (D8) Quant Value 5
NOTE ON 111 (D#8) Quant Value 6
NOTE ON 112 (E8) Quant Value 7
NOTE ON 113 (F8) Quant Value 8
NOTE ON 114 (F#8) Quant Value 9
NOTE ON 115 (G8) Quant Value 10
NOTE ON 116 (G#8) Quant Value 11
NOTE ON 117 (A9) Quant Value 12
NOTE ON 118 (A#9) Quant Value 13
NOTE ON 119 (B9) Quant Value 14
NOTE ON 120 (C9) Quant Value 15
NOTE ON 121 (C#9) Quant Value 16
NOTE ON 122 (D9) Quant Value 32
NOTE ON 123 (D#9) Quant Value 64
NOTE ON 124 (E9) Q MIDI S nc Rec
NOTE ON 125 (F9) Pitch Octave Up
NOTE ON 126 (F#9) Redo
CONTROLLER 20 Track Volume
CONTROLLER 21 Feedback
CONTROLLER 22 Track 1 Volume
CONTROLLER 23 Track 2 Volume
CONTROLLER 24 Track 3 Volume
CONTROLLER 25 Track 4 Volume
CONTROLLER 52 Track 1 Feedback
CONTROLLER 53 Track 2 Feedback
CONTROLLER 54 Track 3 Feedback
CONTROLLER 55 Track 4 Feedback
CONTROLLER 60 Speed
CONTROLLER 61 Track Pan
CONTROLLER 102 Track 1 Pan
CONTROLLER 103 Track 2 Pan
CONTROLLER 104 Track 3 Pan
CONTROLLER 105 Track 4 Pan